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Propeller Burr

Design and Copyright : 柳瀬順一 (Junichi Yananose) (1990).

A6/133 B6/70 C6/117 D6/54 E6/112 F6/103 G6/41 H6/25 I4/2 J4/8

Pieces 10
Selection random
Goal 7×4×2
Holes 0
Solutions 2 
  1. JBAFHEE | BBAFFFE
JJFFHED | BJAAAEE
BGCHHHD | BCCIADD
CGGGGHD | CCGIIID

  2. BBBAAEE | FFBAHHE
BFFFAED | BFHHHEE
JJCIAAD | JCCGHDD
CJGIIID | CCGGGGD
Pieces 10
Selection random
Goal 5×4×3
Holes 4
Solutions 0 problem 1
Solutions 6 problem 2 
  1. GGDDH | CED.A | CEEAA
GDDDH | GEE.H | CCEAH
GFFFB | JCB.H | JCAAI
GFBBB | FFB.H | JJIII

  2. GGDDI | CED.I | CEEHI
GDDDA | GEE.A | CCEHI
GFFFB | JCB.A | JCHHH
GFBBB | FFB.A | JJHAA

  3. GCHAA | FFB.A | CFBBB
GCHHH | CCB.A | CFFFB
GGJHI | EEJ.A | EDDDA
GJJHI | GED.I | EEDDI

  4. GCHAA | FFB.A | CFBBB
GCHHH | CCB.A | CFFFB
GGEHI | JEE.A | JDDDA
GEEHI | GED.I | JJDDI

  5. GCIII | FFB.H | CFBBB
GCAAI | CCB.H | CFFFB
GGJAH | EEJ.H | EDDDH
GJJAA | GED.A | EEDDH

  6. GCIII | FFB.H | CFBBB
GCAAI | CCB.H | CFFFB
GGEAH | JEE.H | JDDDH
GEEAA | GED.A | JJDDH
Solutions 3 problem 3 
  1. FAAHD | CA.DD | AACDD
FHHHB | CC.DB | ACCBB
FFHEB | JF.EE | IIIBG
JJHEE | JF.GE | IGGGG

  2. CFFFI | CC.AI | GCAAI
CFHDD | FF.DD | GCADI
EEHHH | GE.JD | GAABB
EHHBB | EE.JB | GGJJB

  3. BAAHF | BA.CC | AACCD
BHHHF | EE.DC | AECDD
BBHJF | EB.FF | EEGDD
IIHJJ | IG.FJ | IGGGG
Solutions 119 problem 4 
  1. HHFFD | AHHHD | AHJJ.
BBFDD | FFFJD | AAAJ.
BICEE | BCCED | BBAG.
CIIIE | CCGEE | GGGG.

  2. HJJDD | AFJCC | AACC.
HHHDD | AFJDC | FFCI.
AHBED | AGBEE | FBBI.
GHBEE | GGGGE | FBII.

  3. CHHGG | CCHHH | DCHA.
CAAGI | DDAGI | DCAA.
BBFGI | DEFFF | DEEJ.
BFFGI | BEEJJ | BBEJ.

  4. DHHFC | DBHHH | DBHC.
IIIFC | DDICC | DBAC.
EEAFF | BEAJF | BBAG.
EAAJJ | EEGJF | GGGG.

  5. AHEEI | AAAEI | DDAF.
CHEBB | CDEEI | DDAF.
HHHJB | CCFJI | DGFF.
HCJJB | GCFBB | GGGG.

  6. AHEED | AAAED | CCAF.
IHEDD | ICEED | ICAF.
HHHBJ | CCFBD | IGFF.
HBBBJ | GBFJJ | GGGG.

  7. IHCBB | IAFBC | IAFF.
IHCCB | FFFCC | DAAA.
HHHGB | DDEJB | DEEA.
HGGGG | DEEJG | DEJJ.

  8. IHCBB | IAFBC | IAFF.
IHCCB | FFFCC | DAAA.
HHHGB | DDEEB | DJEA.
HGGGG | DJJEG | DJEE.

  9. IHCBB | IAFBC | IAFF.
IHCCB | FFFCC | JAAA.
HHHGB | JJEEB | JDEA.
HGGGG | DDDEG | DDEE.

  10. AHHDD | AAADD | CCAD.
BBHHH | BCEED | BCAE.
IBHFF | CCEJJ | BGEE.
IIIFJ | GFFFJ | GGGG.

  11. IHDAA | IDDAF | IGAA.
IHHHA | GDDDF | GGGG.
HHBFC | EEBFF | EJJC.
BBBFC | BEJCC | EEJC.

  12. IHDAA | IDDAF | IGAA.
IHHHA | GDDDF | GGGG.
HHBFC | JEBFF | JEEC.
BBBFC | BEECC | JJEC.

  13. GGHHE | HHHEE | AAHJ.
GACEE | GAJEC | DAJJ.
GACCB | DDBCC | DFFF.
GIBBB | DIBFF | DIIF.

  14. GGHHE | HHHEE | IIHF.
GAAEE | GAFEJ | DIFF.
GBAJC | DDFJJ | DIBC.
GBAAC | DBFCC | DBBC.

  15. GGHHJ | HHHJJ | IIHF.
GAAEE | GAFJE | DIFF.
GBAEC | DDFEE | DIBC.
GBAAC | DBFCC | DBBC.

  16. GCHHF | HHHDD | CIHD.
GCAAF | CCDDD | CIII.
GGBAF | EEBFF | EBBJ.
GBBAA | GEJFA | EEJJ.

  17. DDHHE | HHHEE | BBHF.
DDCEE | DAFEC | BAFF.
GDCCJ | BBFCC | BAAA.
GGGGJ | IGFJJ | IIIA.

  18. JJHHE | HHHEE | AAHD.
JACEE | JADEC | IADD.
GACCB | FFBCC | IFDD.
GGGGB | IGBBB | IFFF.

  19. GGHDD | EEHHH | EHHA.
GAADD | GEADI | EEAA.
GCJBD | FFJBI | CFBB.
GCBBI | CCJJI | CFFF.

  20. GGHDD | EEHHH | EHHA.
GAADD | GEADI | EEAA.
GBBBD | FFCBI | JFCC.
GBCCI | JJCBI | JFFF.

  21. GGHFD | EEHHH | EHHA.
GAAFD | GEADD | EEAA.
GBIFD | CBFFD | BBCJ.
GBIII | CCFJJ | BCCJ.

  22. GGHJJ | EEHHH | EHHD.
GIIJC | GEDJC | EEDD.
GIBCC | FFBBB | AFDD.
GIACB | AAACB | AFFF.

  23. IIHFC | EEHHH | EHHC.
BIAFC | BEJCC | EEJC.
BIAFF | AAADF | AGJJ.
BBDDD | GBDDF | GGGG.

  24. EEHDD | GEHHH | GHHA.
EAADD | EEADI | GGAA.
CFFFD | CCJJI | GCBB.
CFBBI | FFJBI | GCJB.

  25. EEHDD | GEHHH | GHHA.
EAADD | EEADI | GGAA.
JFFFD | JJCBI | GBCC.
JFCCI | FFCBI | GBBB.

  26. EEHCC | JEHHH | JHHA.
EAACI | EEACI | JJAA.
GGGGI | BDGCC | BFFF.
DDDGI | DDBFF | BBBF.

  27. JJHBB | FFHHH | GHHD.
JFFFB | JFDDD | GADD.
EECCB | GECBB | GAAA.
EIICC | EEIAC | GGIA.

  28. JJHCC | EEHHH | EHHA.
JAACI | JEACI | EEAA.
GGGGI | BDGCC | BFFF.
DDDGI | DDBFF | BBBF.

  29. GBHDD | CBJDD | BBCD.
GBHHH | CCJJD | BCCJ.
GGFHA | EEFFF | EIII.
GFFHA | GEAAA | EEAI.

  30. BBHHG | BDDJG | BDDD.
HHHGG | CCDJA | BBJJ.
EEHIG | CEAAA | CFFF.
EIIIG | EEAFF | CCAF.

  31. BBHEE | BFJJE | BFFF.
AAHEC | FFJEE | BBJC.
AHHHC | AGDCC | ADDC.
GHIII | GGGGI | ADDD.

  32. CJHDG | CCDDG | FCDD.
CJHGG | JJDEI | FCEE.
BHHHG | FFEEI | FBEA.
BAAHG | BFAII | BBAA.

  33. EEHJI | EGJJI | GGGG.
BEHAA | EEJAI | GBAA.
BHHHC | BDFFI | BBAC.
DDDHC | DDFCC | FFFC.

  34. BBHDD | BFJDD | BJJD.
FBHEE | FFHED | BJHI.
FAAGE | CAHEE | AACI.
FGGGG | CCHIG | ACCI.

  35. BAAHH | BAFCC | AACC.
BHHHD | EEFFC | AECF.
BBGHD | EBJDD | EEJF.
GGGGD | IJJGD | IIIF.

  36. BBBHH | GFBJJ | GFFF.
BHHHI | FFBJI | GGAJ.
AACHI | DAEEC | GAAE.
DDCCI | DDECC | GDEE.

  37. BBBHH | AFBDD | AFFF.
BHHHI | FFBDD | AAAD.
CCGHI | JCEED | JJAE.
GGGGI | JCEGI | CCEE.

  38. BBBHH | AFBDD | AFFF.
BHHHI | FFBDD | AAAD.
JJEHI | CJEED | CCAG.
CCEEI | CJGEI | GGGG.

  39. IIBHH | GFBBB | GFFF.
IHHHB | FFAAB | GGAD.
IECHJ | EEDAJ | GCDD.
EECJJ | ECCAA | GCDD.

  40. EEIHH | GEIII | GDDD.
EHHHC | EEDCC | GGDD.
AJCHB | JJCCB | GFFF.
AABBB | JABFF | GAAF.

  41. GGFHA | EEFFF | EIII.
GFFHA | GEAAA | EEAI.
GBHHH | CBDJJ | BBCJ.
GBDDH | CCDDJ | BCCD.

  42. GGFHA | EEFFF | EIII.
GFFHA | GEAAA | EEAI.
GBHHH | JBDCC | BBCC.
GBDDH | JJDDC | BJCD.

  43. GGIHC | EEIII | EBBC.
GBBHC | GEBCC | EEBC.
GAHHH | JFDDD | JFFF.
GAADH | FFADD | JJAA.

  44. BBFHC | BEFFF | BEEC.
IFFHC | IEECC | BBEC.
IAHHH | JGDDD | GGGG.
IAADH | JJADD | GJAA.

  45. EEFHA | GEFFF | GIII.
EFFHA | EEAAA | GGAI.
BJHHH | JJDCC | GBCC.
BBDDH | JBDDC | GBCD.

  46. GDAHF | DDACC | DDCC.
GHHHF | DEABC | EECB.
GGHJF | EEAFF | EAAB.
GIHJJ | GIBFJ | IIBB.

  47. BAAHG | BAFCC | AACC.
BHHHG | EEFFC | AECF.
BBHDG | EBDDG | EEJF.
IIHGG | IJDDD | IJJF.

  48. IIAHF | GIACC | GICC.
EHHHF | EEABC | GGCB.
EEHJF | DEAFF | GAAB.
DDHJJ | DDBFJ | GDBB.

  49. GCBBH | JJBDD | CJBD.
GCHHH | CCDDD | CJBB.
GGFHA | EEFFF | EIII.
GFFHA | GEAAA | EEAI.

  50. GGGGH | GEJDD | EEJJ.
BGHHH | EEJDD | EBID.
BFAHC | BFFFD | BBIC.
FFAHC | AAACC | AIIC.

  51. GGGGH | GEAFI | EEAA.
BGHHH | EEAFI | EBFF.
BJAHC | BDAII | BBFC.
DJJHC | DDJCC | DDFC.

  52. CJBBH | CCBDD | GCBD.
CJHHH | JJDDD | GCBB.
EEFHA | GEFFF | GIII.
EFFHA | EEAAA | GGAI.

  53. GGGGD | GFJBD | HBJJ.
HGIDD | HFJBD | HBBB.
IIIEC | HFEED | FFAC.
AAEEC | HAECC | FAAC.

  54. AAIII | ABFFF | HBBB.
HAICJ | HBFCJ | HFFB.
GAAJJ | HDECC | DDEE.
GGGGC | HGEEC | DDDE.

  55. GDIIA | DDJIF | DDJI.
GHAAA | DHHHF | HHJJ.
GGAFC | EEAFF | EBBC.
GBBFC | GEBCC | EEBC.

  56. BBCEE | DDCCE | DDDC.
BHCEI | BDAEE | BBAC.
JHHHI | JGAFF | GGGG.
HHAAI | JJAFI | GFFF.

  57. BBCJJ | BCCGG | BAAD.
CBHJG | CCDJG | BADD.
EEHHH | AEFFG | AADD.
EHHII | EEFIG | FFFI.

  58. GBIIE | GBIEE | BBIF.
BBHEE | GGFEJ | DDFF.
HHHJC | GDFJJ | DDAC.
AAHHC | GAFCC | DAAC.

  59. GBIIJ | GBIJJ | BBIF.
BBHEE | GGFJE | DDFF.
HHHEC | GDFEE | DDAC.
AAHHC | GAFCC | DAAC.

  60. GBIII | GBJJI | BBJF.
BBHEE | GGFJE | DDFF.
HHHEC | GDFEE | DDAC.
AAHHC | GAFCC | DAAC.

  61. EEIII | EGFFF | GGGG.
AEIHH | EEFDD | GFFD.
AHHHC | AJDDD | ABBC.
JBBHC | JJBCC | AABC.

  62. EEAAI | EGIII | GGGG.
BEAHH | EEAJJ | GBAJ.
BHHHC | BDFFJ | BBAC.
DDDHC | DDFCC | FFFC.

  63. GAAJJ | HAEJF | AAEE.
GGGGJ | HGEEF | AIIE.
HDBFC | HDBFF | HDIC.
BBBFC | BDDCC | HDIC.

  64. JGGGG | HGEEF | IIIE.
JJGBB | HJEBF | IAEE.
HCCFB | HDCFF | HAAA.
DDDFB | DDCAB | HCCA.

  65. FGGGG | HJEGI | JJEE.
FFDDG | HFEEI | JAAE.
HBDDC | HFDII | HABC.
HBBDC | AFBCC | AABC.

  66. GCCBB | CCDBF | IIIB.
GDCFB | CDDFF | IDDB.
GGHFJ | EEHHH | EHHA.
GAAFJ | GEAJJ | EEAA.

  67. GCIBB | DDDBF | CDDB.
GCIFB | CCIFF | CDIB.
GGHFJ | EEHHH | EHHA.
GAAFJ | GEAJJ | EEAA.

  68. CDIBB | CCIBF | GCIB.
CDDFB | DDDFF | GCIB.
EEHFJ | GEHHH | GHHA.
EAAFJ | EEAJJ | GGAA.

  69. IDDBB | CDDBF | GDCB.
IIIFB | CCDFF | GCCB.
EEHFJ | GEHHH | GHHA.
EAAFJ | EEAJJ | GGAA.

  70. EECAA | EBHAC | BBAA.
DECCA | EEHCC | BIII.
DDHFF | BDHJJ | BGHI.
DDHFJ | GFFFJ | GGGG.

  71. GGGGF | GEHCC | EECC.
BGAAF | EEHIC | EBCI.
BJHAF | BDHFF | BBHI.
DJJAA | DDJFA | DDHI.

  72. GCBBB | FFADB | CFAA.
GCBDD | CCADB | CFFF.
GGADJ | EEADJ | EIII.
GHHJJ | GEHHH | EEHI.

  73. GCBBB | JJFAB | CJAA.
GCBII | CCFFB | CJAF.
GGDDI | EEDDD | EAAF.
GHHDI | GEHHH | EEHF.

  74. CJBBB | CCFAB | GCAA.
CJBII | JJFFB | GCAF.
EEDDI | GEDDD | GAAF.
EHHDI | EEHHH | GGHF.

  75. BCCJJ | CCFAJ | GBAA.
BBCII | CBFFJ | GBAF.
EEDDI | GEDDD | GAAF.
EHHDI | EEHHH | GGHF.

  76. DJBBG | DJFCC | DICC.
JJABG | DDFFC | DICF.
AAABG | EEBBG | EIIF.
AHHGG | AEHHH | EEHF.

  77. GGBDD | AFBDD | ABBD.
GBBCC | GFCCD | AAAI.
GFFEC | JFCEE | JJAI.
GHFEE | JHHHE | HHII.

  78. AAGDD | CCGDD | CIID.
AGGBB | ACCBD | AICB.
JJGEB | FFFEE | AIFB.
JHGEE | JHHHE | HHFF.

  79. GGGGF | GEIII | EEBB.
AGBBF | EEDBI | EDDB.
AJCCF | AJCFF | ADDD.
JJHCC | HHHFC | AAHH.

  80. DIEEF | DIECC | GICC.
DIBEF | DDEEC | GACB.
DABJF | GABFF | GABB.
AAHJJ | HHHFJ | GGHH.

  81. DGEEF | DIECC | DICC.
AGBEF | DDEEC | DICB.
AGBJF | AGBFF | AIBB.
GGHJJ | HHHFJ | AAHH.

  82. IGEEF | IDECC | IDCC.
AGBEF | DDEEC | IDCB.
AGBJF | AGBFF | ADBB.
GGHJJ | HHHFJ | AAHH.

  83. IDEEF | IDECC | GDCC.
IDBEF | DDEEC | GACB.
IABJF | GABFF | GABB.
AAHJJ | HHHFJ | GGHH.

  84. EEBIF | EGBBB | GGGG.
AEBIF | EEDIB | GDDI.
AJCCF | AJCFF | ADDD.
JJHCC | HHHFC | AAHH.

  85. EEBBF | EGDDD | GGGG.
AEBDF | EEBDD | GIBB.
AJCCF | AJCFF | AIII.
JJHCC | HHHFC | AAHH.

  86. EEDDD | EGFFF | GGGG.
AEDDC | EEFDC | GFFI.
AJBCC | AJBBB | AIII.
JJHCB | HHHCB | AAHH.

  87. BBEII | BFEEG | BFFF.
DBEEI | FFCEG | BACC.
DDCCI | JDCGG | JAAA.
DDHHG | HHHAG | JJHA.

  88. BBEJJ | BFEEJ | GFFF.
IBEED | FFCEJ | GACC.
IBCCD | GBCDD | GAAA.
IIHHD | HHHAD | GGHA.

  89. BBJEE | BFJJE | GFFF.
IBJED | FFCEE | GACC.
IBCCD | GBCDD | GAAA.
IIHHD | HHHAD | GGHA.

  90. JJEBB | JFEEB | GFFF.
DJEEI | FFCEB | GACC.
DDCCI | GDCBB | GAAA.
DDHHI | HHHAI | GGHA.

  91. GGBFJ | ICBJJ | IBBC.
GDBFF | GCCJF | IBCC.
GDDAA | EEDAF | IEAA.
GDDHH | EHHHF | EEAH.

  92. GGGGJ | CCGJJ | DDDF.
BBBGA | CDBJA | CDDF.
BEAAA | EEBFF | CCIF.
EEAHH | EHHHF | IIIH.

  93. GCIBB | FFIBH | CFII.
GCAAB | CCHHH | CFFF.
GGJAB | EEJHB | EDDD.
GJJAA | GEDHA | EEDD.

  94. GCIBB | FFIBH | CFII.
GCAAB | CCHHH | CFFF.
GGEAB | JEEHB | JDDD.
GEEAA | GEDHA | JJDD.

  95. JJIBB | FFIBH | GFII.
JCAAB | JCHHH | GFFF.
CCEAB | GEEHB | GDDD.
CEEAA | CEDHA | GGDD.

  96. DFIII | DFFFI | DHGG.
FFBBB | DDAGB | DHAG.
CCBEE | JCAEB | HHHG.
JJAAE | JCAEE | CCHG.

  97. BBCID | BCCID | BHII.
CBADD | CCJJD | BHHH.
AAAEE | FFJED | HHJG.
AFFFE | AFGEE | GGGG.

  98. BBIID | BJICD | BHIC.
JBADD | JJCCD | BHHH.
AAAEE | FFCED | HHCG.
AFFFE | AFGEE | GGGG.

  99. FCCDD | CCADD | IHAD.
FFCEE | CFAED | IHHH.
BGAAE | IFAEE | IBHJ.
BGGGG | BFGJJ | BBHJ.

  100. DDGAA | DDGAF | DHAA.
BBIIA | BDGGF | BHHH.
EBIFC | EEGFF | BJHC.
EEIFC | JEGCC | JJHC.

  101. DDGAA | DDGAF | DHAA.
BBIIA | BDGGF | BHHH.
JBIFC | EEGFF | BEHC.
JJIFC | EJGCC | EEHC.

  102. ACDDD | AAADD | CHAF.
ACBBB | CCFDB | CHFF.
GJBEE | JJFEB | HHHI.
GGGGE | JGFEE | HIII.

  103. GDBCC | DDCCF | DDHB.
GIBBC | DICBF | IIHB.
GGJFA | EEJFF | EHHH.
GJJFA | GEAAA | EEAH.

  104. GDBCC | DDCCF | DDHB.
GIBBC | DICBF | IIHB.
GGEFA | JEEFF | JHHH.
GEEFA | GEAAA | JJAH.

  105. GDDBB | JDDBF | JDHB.
GIIIB | CCDIF | JJHB.
GGEFA | CEEFF | CHHH.
GEEFA | GEAAA | CCAH.

  106. GDCBB | JDIBC | JDHB.
GDCCB | DDICC | JJHB.
GGIFA | EEIFF | EHHH.
GFFFA | GEAAA | EEAH.

  107. BCCDJ | CCIDJ | GBHD.
BBCJJ | CBIDD | GBHD.
EEIFA | GEIFF | GHHH.
EFFFA | EEAAA | GGAH.

  108. BCCDD | CCJDD | GBHD.
BBCII | CBJJD | GBHJ.
EEFIA | GEFFF | GHHH.
EFFIA | EEAAA | GGAH.

  109. IIBCC | DICCF | GIHB.
DDBBC | DDCBF | GDHB.
EEJFA | GEJFF | GHHH.
EJJFA | EEAAA | GGAH.

  110. IIBCC | DICCF | GIHB.
DDBBC | DDCBF | GDHB.
JJEFA | GEEFF | GHHH.
JEEFA | JEAAA | GGAH.

  111. JJCBB | DDIBC | GDHB.
JDCCB | JDICC | GDHB.
EEIFA | GEIFF | GHHH.
EFFFA | EEAAA | GGAH.

  112. AFDDD | AAADD | BBAH.
AFIEE | IIIDE | BHHH.
GFFEC | BBFEE | BJHC.
GGGGC | JGFCC | JJHC.

  113. AFFFB | AAABB | IIAH.
AFDJJ | FFDBJ | IHHH.
GDDBC | EEDBJ | IEHC.
GGGGC | EGDCC | EEHC.

  114. AFFFB | AAAJB | IIAH.
AFDJJ | FFDJB | IHHH.
GDDBC | EEDBB | IEHC.
GGGGC | EGDCC | EEHC.

  115. AFFFB | AAADB | IIAH.
AFDDD | FFDDB | IHHH.
GJJBC | EEJBB | IEHC.
GGGGC | EGJCC | EEHC.

  116. IIFGC | IEFFF | IEEC.
DFFGC | DEECC | HHEC.
DABGG | DDBBB | JHHH.
DAAGB | JJAGB | JHAA.

  117. EEBBF | EGDDD | GGGG.
IEBDF | EEBDD | GHBB.
IACJF | ICCFF | IHHH.
CAAJJ | CCAFJ | HHAA.

  118. EEBBF | EGDDD | GGGG.
IEBDF | EEBDD | GHBB.
IACCF | IJCFF | IHHH.
JAACC | JJAFC | HHAA.

  119. EEBBF | EGDDD | GGGG.
IEBDF | EEBDD | GHBB.
IACCF | JJCFF | JHHH.
IAACC | IJAFC | HHAA.
Solutions 7 problem 5 
  1. CFFFH | CCIII | GCJ.I
CFHHH | FFJJD | GCJ.D
EEBHA | GEBDD | GBB.D
EBBHA | EEAAA | GGA.D

  2. GGAAF | EEAJJ | EAA.J
GHHAF | GEHHH | EEH.J
GCCBF | CCDFF | III.B
GDCBB | CDDFB | IDD.B

  3. GGAAF | EEAJJ | EAA.J
GHHAF | GEHHH | EEH.J
GCIBF | DDDFF | CDD.B
GCIBB | CCIFB | CDI.B

  4. EEAAF | GEAJJ | GAA.J
EHHAF | EEHHH | GGH.J
CDBBF | CCBFF | GCB.I
CDDBI | DDDFI | GCB.I

  5. EEAAF | GEAJJ | GAA.J
EHHAF | EEHHH | GGH.J
CDIBF | CCIFF | GCI.B
CDDBB | DDDFB | GCI.B

  6. EEAAF | GEAJJ | GAA.J
EHHAF | EEHHH | GGH.J
IDDBF | CDDFF | GDC.B
IIIBB | CCDFB | GCC.B

  7. GBAII | CBAFI | BBC.I
GBDDD | CCAFF | BCC.F
GGDDJ | EEADJ | EAA.F
GHHJJ | GEHHH | EEH.F
Solutions 3 problem 6 
  1. HHIII | JHHHI | FH.DD
JJAEE | JBAED | FB.DD
AAAGE | FFCEE | FB.DC
AGGGG | BFCCG | BB.CC

  2. HDJJF | DDJGA | DD.GA
HHHJF | DEAAA | EE.GG
IHCBF | EEAFF | EC.GB
IHCBB | ICCFB | IC.GB

  3. JHIII | FHHHI | HH.DD
JJAEE | FJAED | BB.DD
AAAGE | FFCEE | BF.DC
AGGGG | BBCCG | BF.CC
Solutions 20 problem 7 
  1. HAABD | GJABD | GJBBD
HHHBD | JJADD | GGB..
CHFFE | CCAEE | GCA..
CHFEE | FFFEI | GCIII

  2. HHDDD | IFGDD | IGGGG
BHHHA | BFFDA | IGF..
BHJCC | EECCA | IEF..
BBJJC | EBCJA | EEFAA

  3. BBHCJ | BGFCJ | BGFFF
DBHJJ | DFFCC | BGG..
DHHHC | DDEEC | AGE..
DHAII | AAAEI | AGEEI

  4. DDHJA | DDGJJ | DGGGG
HHHJA | IDAAA | IGA..
CHFFE | CCBEE | ICB..
CHFEE | FFFEB | ICBBB

  5. EEAHJ | EGAAA | GGGGA
DEAHJ | EECJJ | GCC..
DDHHH | CDBFF | CCB..
DDHII | BBBFI | BFFFI

  6. EEAHJ | EGAAA | GGGGA
IEAHJ | EECJJ | GCC..
IBHHH | CFFFD | CCB..
IBBDH | IFBDD | FFBDD

  7. EEAHF | EGAAA | GGGGA
JEAHF | EECFF | GCC..
JJHHH | CJDFB | CCB..
IDDDH | IDDFB | IIBBB

  8. JJAHF | JGAAA | GGGGA
EJAHF | EECFF | GCC..
EEHHH | CEDFB | CCB..
IDDDH | IDDFB | IIBBB

  9. BBCHG | BHHHC | BJJHH
AACCG | FFJCC | BBJ..
AFFFG | AFEDG | AEE..
IIIGG | IEEDD | AEDDD

  10. BBBHD | EEBDD | EGGDD
BHHHA | BEGDA | EEG..
JJCHH | JFFFA | ICG..
IJCFF | ICCFA | ICGAA

  11. GGGGH | GCCBJ | CCBBJ
DGHHH | EECJJ | CEB..
DDAHI | EDBFF | EEB..
DDAHI | AAAFI | AFFFI

  12. DFFFI | DGCFI | DGCCI
HHCCI | DDCFF | DGG..
JHHHE | JJBEE | AGB..
JHAEE | AAAEB | AGBBB

  13. IBBBD | IJFBD | IJFFF
IBHDD | AFFBD | AJJ..
HHHEE | ACCED | CCG..
AAHHE | AGCEE | CGGGG

  14. GBAFD | CBADD | BBCDD
GBHFF | CCADF | BCC..
GGHHH | EEAJF | EAA..
GHHJJ | GEIJF | EEIII

  15. BEEFD | BBEDD | IIIDD
BEHFF | AEEDF | AAI..
BBHHH | ACCJF | CCG..
AHHJJ | AGCJF | CGGGG

  16. DDDEI | HGEEI | GGGGI
DDEEI | HDEBB | GAA..
HCFFF | HCCBJ | HAC..
HCFBB | AFFBJ | AACJJ

  17. DDDEI | HGEEI | GGGGI
DDEEI | HDEBB | GAA..
HCFFF | HCCJB | HAC..
HCFJJ | AFFJB | AACBB

  18. DDDEF | HGEEJ | GGGGJ
DDEEF | HDEJJ | GAA..
HBCCF | HCCFF | HAB..
HBBCI | ACBFI | AABII

  19. GAAEE | HAFEI | AAIII
GGGGE | HGFEE | AFF..
HBCJJ | HCCJD | HFB..
CBBDJ | CCBDD | HFBDD

  20. BCEED | BBGED | CGGGG
BCEDD | CCEED | CGH..
BBFAI | JJFFD | HHH..
FFFAI | JAAAI | JAHHI
Solutions 9 problem 8 
  1. HDAAE | DDAEE | FAAGG
HHHEE | DDDEG | FA..G
BHCCJ | FFCJJ | FB..G
BHICC | BFIJC | BBIIG

  2. HDAAG | DDAEG | FAAEE
HHHGG | DDDEE | FA..E
BHCJG | FFJJC | FB..I
BHCCG | BFJCC | BBIII

  3. AAHHB | HHHEB | CCHEE
AJBBB | ACBEE | AC..E
IJJFF | CCJDD | AG..D
IIIFD | GFFFD | GGGGD

  4. DDHHA | HHHEA | FJHEE
DDAAA | DJJEE | FJ..E
IDACB | FFBCC | FG..C
IIICB | GFBBB | GGGGC

  5. EEHJJ | GEHHH | GHHAA
EFFJA | EEFJA | GG..A
BCCDA | CCFFF | GB..I
BBCDD | CBDDD | GBIII

  6. AABBB | AFJEB | HJJEE
HABID | HFBEE | HJ..E
CAAID | HFCDD | FF..G
CCIID | HCCGD | FGGGG

  7. AAEEB | AFJEB | HJJBB
HAEBB | HFEEI | HJ..I
CAADD | HFCDI | FF..G
CCDDD | HCCGI | FGGGG

  8. DCEEJ | DCAEJ | DAAGG
CCEJJ | DDEEG | DA..G
CFBBB | CFFFB | AA..G
FFBHH | IHHHB | IIIHG

  9. DCJJE | DCAEE | DAAGG
CCJEE | DDJEG | DA..G
CFBBB | CFFFB | AA..G
FFBHH | IHHHB | IIIHG
Solutions 64 problem 9 
  1. HBBEE | FFFEI | ..III
HBFFE | HBFEE | HBBCC
GJJAA | HDJAC | DDAAC
GGGGA | HGJCC | DDD..

  2. HBBEE | FFFEI | ..III
HBFFE | HBFEE | HBBCC
AJJDD | HGJDC | GGGGC
AADDD | HAJCC | GAA..

  3. GHHAA | JJCCA | ..DDD
GIHHH | JICDA | JICDD
GGHEE | FFBEA | BICCA
GFFFE | GFBEE | BBB..

  4. EHHII | EEDIB | ..DIB
EEHHH | AEDJJ | AADDB
CCHGJ | ACDBJ | FFFBB
AGGGG | ACFFG | CCF..

  5. JHHDA | CCDDA | ..DDG
JJHHH | CJDGA | CGGGG
IBHEE | FFFEA | CCBAA
IBFFE | IBFEE | IBB..

  6. JHHDA | JJDDA | ..DDG
JCHHH | BCDGA | BGGGG
CCHEE | FFBEA | BBBAA
CFFFE | CFIEE | III..

  7. DHHAF | DDHHH | ..HJJ
DIIAF | DCIAJ | DCIAJ
BBBGF | EEBFF | ECCAA
BGGGG | BECFG | EEC..

  8. EHHBB | EEHHH | ..HDI
EEJJB | AEDDD | AADDI
CCJGB | ACJBB | FFFII
AGGGG | ACFFG | CCF..

  9. AHGEE | AAAEC | ..ACC
AHGBE | DHCEE | IHCCB
DDGBJ | DHGBJ | IFFBB
DGGJJ | DHFFF | IIF..

  10. AHEEG | AAAEG | ..ADD
AHEGG | CCEED | FFFDD
HHHIG | CJFFB | CJFDB
HIIIG | JJBBB | CCB..

  11. AHICC | AAAFC | ..AFF
AHIII | BFFFC | BBBCC
HHHGD | BEJDD | EEBDD
HGGGG | EEJDG | EJJ..

  12. AHICC | AAAFC | ..AFF
AHIII | BFFFC | BBBCC
HHHGD | BEEDD | JEBDD
HGGGG | JJEDG | JEE..

  13. AHFFF | AAACJ | ..ACC
AHFCC | EFFCJ | EEIJJ
HHHGD | EEBDD | BEIDD
HGGGG | BBBDG | BII..

  14. GGHHE | HHHEE | ..HJJ
GAAEE | GAFEJ | AAFFJ
GCADD | FFFDB | CIIIB
GCDDD | CCBBB | CIB..

  15. GGHHJ | HHHEJ | ..HEE
GAAJJ | GAFEE | AAFFE
GCADD | FFFDB | CIIIB
GCDDD | CCBBB | CIB..

  16. GGHHC | HHHEC | ..HEE
GAACC | GAJEE | AAJJE
GIACD | BFJCD | BFFFD
GIIID | FFBDD | BBB..

  17. GGHHC | HHHBB | ..HCB
GDDDC | GEECC | IIECB
GDDFA | JEDFF | IEEBB
GFFFA | JJAAA | IJA..

  18. AFHHD | HHHCD | ..HCD
AFBBD | AJBDD | AJBCC
GFFEE | JJFEC | AABBC
GGGGE | IGFEE | III..

  19. ADHHG | HHHEG | ..HEE
ADDGG | AFDEE | AFFFE
CDDBG | FFCBJ | AABBJ
CCBBG | ICCJJ | III..

  20. AAHHG | HHHJJ | ..HJD
AIEEG | AIEDJ | AIIDD
CCBEG | BCEEG | AFFDD
BBBGG | BCFFF | CCF..

  21. AAHHG | HHHEG | ..HEE
ACCGG | ACDEE | AIIIE
BBCCG | FFDCJ | ADDIJ
BFFFG | BFDJJ | BBD..

  22. AAHHD | HHHDD | ..HDD
AJJCC | AJGDC | AGGGG
IBJEE | FFFEC | AGBCC
IBFFE | IBFEE | IBB..

  23. AAHHI | HHHFI | ..HII
AJDFF | AJJFG | AGGGG
EJDDF | EECDB | ACCGB
EEDDF | CEBBB | CCB..

  24. DDHHA | HHHFA | ..HFF
DDAAA | DFFFC | IIICC
GDAJJ | EECJB | IECCB
GGGGJ | EGBBB | EEB..

  25. DDHHI | HHHJC | ..HCC
DDAAI | DECJJ | EECCJ
BDAGI | EEAFI | EBAFF
BGGGG | BFFFG | BBA..

  26. DDHHF | HHHJC | ..HCC
DDAAF | DBCJJ | BBCCJ
EDIAF | EEGFF | BGGGG
EEIAA | BEIFA | BGI..

  27. BFHCC | BBBJC | ..IJJ
BFHHH | FFBJC | IIICC
AHHED | FGEED | GGGGD
AAEED | FAEDD | GAA..

  28. JFHIA | JJCIA | ..IIC
JFHHH | FFCCA | DDDCC
GHHEE | FDBEA | BDDAA
GGGGE | FGBEE | BBB..

  29. JFHCC | JJDDC | ..DDD
JFHHH | FFEDC | IEECC
GHHAA | FEEAB | IEAAB
GGGGA | FGBBB | IIB..

  30. GGHEE | HHHEB | ..HHB
GAADE | GAJEE | AAJJB
GCCDD | CCJBD | AFFBB
GICDD | CIFFF | IIF..

  31. GGHDD | HHHDC | ..HHC
GEDDD | GEECC | IIIBB
GEEBB | FFECB | IJACB
GFFFA | JFAAA | JJA..

  32. AAHFC | HHHCC | ..HHI
BACFF | BGCCF | GGGGI
BAADD | EEADF | GEJII
BBDDD | EBJJF | EEJ..

  33. AAHII | HHHFI | ..HHI
AJDFF | AJJFG | AGGGG
EJDDF | EECDB | ACCGB
EEDDF | CEBBB | CCB..

  34. DDHJJ | HHHFJ | ..HHI
DDAFF | DCCFJ | CCIII
GDAAF | EECAB | CEBAA
GGGGF | EGBBB | EEB..

  35. IAHJD | HHHJJ | ..HHF
IAAJD | ICADD | ICAAF
BBBGD | EEBFD | ECCFF
BGGGG | BECFG | EEC..

  36. JJHGG | HHHDD | ..HHD
JAAGD | JAEGD | AAEED
CCBGI | BCEEI | AFFEI
BBBGI | BCFFF | CCF..

  37. JJHDG | HHHDI | ..HHI
JAADG | JAEDD | AAEEI
CCBDG | BCEEG | AFFEI
BBBGG | BCFFF | CCF..

  38. JJHIG | HHHID | ..HHD
JAAIG | JAEDD | AAEED
CCBIG | BCEEG | AFFED
BBBGG | BCFFF | CCF..

  39. AIIIB | AAAIB | ..ABB
AHHBB | FFHHH | DFHJJ
GCCEE | DDCEJ | DFFFJ
GGGGE | DGCEE | DCC..

  40. GGGGJ | GFDDD | ..HDD
BGEEJ | BFEJJ | FFHDA
BCCEA | CCEEA | FHHHA
BBCAA | CBIII | FHI..

  41. GGGGD | GFJJD | ..HJD
BGEED | BFEDD | FFHJA
BCCEA | CCEEA | FHHHA
BBCAA | CBIII | FHI..

  42. GGGGA | GFCBB | ..HBC
DGAAA | DFCCB | FFHCC
DJAEE | DDAEB | FHHHB
DJIIE | JJIEE | FHI..

  43. GGGGA | GJJCA | ..HCC
BGJCC | BEJCA | EEHHH
BFFDD | EEFDA | EHHAA
BBDDD | IBFFF | III..

  44. GGGGA | GFFJA | ..HJJ
DGFFF | DBFJA | BBHHH
DCCEE | DDCEA | BHHAA
DIIIE | BICEE | BCC..

  45. EFFIG | EEFIG | ..HII
EEAGG | CEFFF | CCHHH
CCAAG | CDBAJ | BHHAA
DDDJG | DDBJJ | BBB..

  46. EFFIA | EEFIA | ..HII
EEAAA | CEFFF | CCHHH
CCAGD | CJBDD | BHHDD
JGGGG | JJBDG | BBB..

  47. JFGGB | JFFFB | ..HBB
FFGDB | JJGEE | HHHBE
ACGDD | AAAED | CHAEE
ACGDD | CCIII | CHI..

  48. GGGGA | GFCBB | ..HBC
FGAAA | FFCCB | HHHCC
FDAEE | JDAEB | JDHHB
FDIIE | DDIEE | JJI..

  49. GGGGA | GFCBB | ..HBC
FGAAA | FFCCB | HHHCC
FIAEE | JDAEB | JJHHB
FIIIE | JDDEE | DDD..

  50. BFFFA | BBBCJ | ..HCJ
BFAAA | FFBJJ | HHHCC
GDAEE | DDAEC | DDHHC
GGGGE | DGIEE | III..

  51. BFIII | BBBCD | ..HCC
BFICC | FFBCD | HHHDD
GAAEE | FAJED | AAHHD
GGGGE | FGJEE | AJJ..

  52. JFFFA | JJCBB | ..HBC
JFAAA | FFCCB | HHHCC
GDAEE | DDAEB | DDHHB
GGGGE | DGIEE | III..

  53. GGGGA | GFBBB | ..HHB
FGAAA | FFBEE | HHHEB
FCADD | JJADE | CJHEE
FCDDD | CCIII | CJI..

  54. GGGGA | GFCBB | ..HHC
FGAAA | FFCCB | HHHCC
FDAEE | JDAEB | JDHBB
FDIIE | DDIEE | JJI..

  55. GGGGA | GFCBB | ..HHC
FGAAA | FFCCB | HHHCC
FIAEE | JDAEB | JJHBB
FIIIE | JDDEE | DDD..

  56. EGGGG | EECGI | ..HHC
EEAAG | JECCI | HHHCC
JJBAI | JDBFI | DDHFF
BBBAA | BFFFA | DDD..

  57. JGGGG | JJCGI | ..HHC
JEAAG | EECCI | HHHCC
EEBAI | EDBFI | DDHFF
BBBAA | BFFFA | DDD..

  58. JFFFA | JJCBB | ..HHC
JFAAA | FFCCB | HHHCC
GDAEE | DDAEB | DDHBB
GGGGE | DGIEE | III..

  59. DDDCF | BBBCC | ..BHC
DDACF | BDIII | BHHHC
AAAGF | EEIFF | EJJHH
AGGGG | AEJFG | EEJ..

  60. DDDCG | BBBCC | ..BHC
DDACG | BDFFF | BHHHC
AAAJG | EEFJG | EFFHH
AIIGG | AEIJJ | EEI..

  61. DDDCF | BBBCC | ..BHC
DDACF | BDIII | BHHHC
AAAGF | JEIFF | JEEHH
AGGGG | AEEFG | JJE..

  62. GGGGB | GFCCB | ..CHH
IGBBB | AFBCC | AHHHC
IIIED | AFEED | FFJHD
AAEED | AJEDD | FJJ..

  63. DIIGB | DDIBB | ..IHH
DGGGG | DCCBG | DHHHA
EECBA | JECBA | JFFHA
ECCAA | EEFFF | JJF..

  64. DIIGB | DDIBB | ..IHH
DGGGG | DCCBG | DHHHA
JJCBA | EECBA | EFFHA
JCCAA | JEFFF | EEF..
Solutions 35 problem 10 
  1. BBHCC | BFCCJ | B..IG
FBHJC | FFCJJ | BIIIG
FHHHE | DDDEE | ADDGG
FHAEE | AAAEG | AD..G

  2. BBCHG | BHHHC | B..HH
AACCG | FFFCC | BBIII
DAFFG | DDFEG | JJIEE
DAAGG | DJAEE | DJ..E

  3. BBIHG | BHHHD | B..HH
AAIDG | CCIDD | BBIDD
ACFFG | ACJEG | AJJEE
CCFGG | FFFEE | AJ..E

  4. IIIHG | BHHHD | B..HH
AAIDG | CCBDD | BBBDD
ACFFG | ACJEG | AJJEE
CCFGG | FFFEE | AJ..E

  5. IIIHG | DHHHJ | F..HH
DDIEG | DDEEJ | FDAJJ
BCEEG | FFECG | FBAAA
BCCGG | BFCCA | BB..A

  6. EEDHG | EHHHJ | F..HH
IEDDG | EEADJ | FAAJJ
ICDDG | FFBCG | FABBB
ICCGG | IFCCB | AA..B

  7. BBBHH | EEBFA | E..AA
BHHHD | BEIFF | EEIAF
CCGHD | JCIDD | JJAAF
GGGGD | JCIGD | CC..F

  8. EEAHH | CEAAA | C..DA
EHHHI | EEDDD | CCDDA
BBGHI | BCFJJ | BCFFJ
GGGGI | FFFGI | BB..J

  9. EEAHH | CEAAA | C..DA
EHHHJ | EEDDD | CCDDA
BBGHJ | BCFJJ | BCFFI
GGGGI | FFFGI | BB..I

  10. EEAHJ | GEAAA | G..FA
EHHHJ | EEFJJ | GGFFA
BCCHH | CCFDI | GBIII
BBCDD | CBFDD | GB..D

  11. EEAHC | BEAAA | B..CA
EHHHC | EEBCC | BBBCA
FFFHH | DGFJJ | GGGGJ
DDIII | DDFFI | GD..J

  12. EEAHC | BEAAA | B..CA
EHHHC | EEBCC | BBBCA
IIGHH | JIFDD | JIFFD
GGGGD | FFFGD | JJ..D

  13. EEAHC | JEAAA | J..CA
EHHHC | EEICC | JJICA
BBGHH | BFIDD | BFFFD
GGGGD | FFIGD | BB..D

  14. JJAHC | EEAAA | E..CA
JHHHC | JEICC | EEICA
BBGHH | BFIDD | BFFFD
GGGGD | FFIGD | BB..D

  15. GGJJH | EEJFC | E..CC
GAAJH | GECFH | EECCH
GDAFF | DDBFH | DDBBB
GIAAF | DIBAH | II..B

  16. GGDDH | EEDFC | E..CC
GDDDH | GECFH | EECCH
GAAFF | JABFH | AABBB
GIIIF | JJBIH | AJ..B

  17. GGGGH | EEGFC | E..CC
DAAGH | IECFH | EECCH
DDAFF | IDBFH | JJBBB
DDAAF | IJBAH | IJ..B

  18. GGGGH | EEGFC | E..CC
IAAGH | IECFH | EECCH
IDAFF | JDBFH | JDBBB
IDAAF | DDBAH | JJ..B

  19. EEJJH | GEJFC | G..CC
EAAJH | EECFH | GGCCH
IIAFF | DIBFH | GIBBB
DDAAF | DDBAH | GD..B

  20. EEDDH | CEDFJ | C..JJ
EDDDH | EEAFH | CCAJH
BBGFF | BCIFH | BCAAA
GGGGF | IIIGH | BB..A

  21. BBDDG | BFDDD | B..AA
FHHDG | FFHHH | BBHAI
FCEEG | JJAEG | CJAAI
FCEGG | CCEEI | CJ..I

  22. EEAAI | CEAJI | C..JI
EHHAI | EEHHH | CCHJJ
BBGAA | BCFDD | BCFFD
GGGGD | FFFGD | BB..D

  23. BBDDG | BFDDD | B..AA
FBHDG | FFHHH | BHHAI
FCEEG | JJAEG | CJAAI
FCEGG | CCEEI | CJ..I

  24. EEIII | GEIDD | G..HD
EJJHD | EEJHD | GGAHD
CFFFB | CCJHB | GCAAA
CFBBB | FFBHA | GC..A

  25. GGGGD | GFFFD | H..FD
IGJJD | CCJDD | HHHFF
ICAJE | ICBEE | IHBBB
CCAEE | AAAEB | AH..B

  26. CGGGG | CJJGE | H..EE
AAJBG | CCJEE | HHHEB
ACIBB | ACFDB | AHFFB
IIIDD | FFFDD | AH..D

  27. BAAFG | BBAFF | H..JJ
BFFFG | DDACJ | HHHCJ
BBEEG | DDAEG | DHACC
IIEGG | IDEEC | IH..C

  28. BAAFC | BBAFF | H..CG
BFFFC | DDACC | HHHCG
BBEEJ | DDAEJ | DHAGG
IIEJJ | IDEEG | IH..G

  29. BAAFC | BBAFF | H..CG
BFFFC | DDACC | HHHCG
BBJJE | DDAEE | DHAGG
IIJEE | IDJEG | IH..G

  30. DDDIB | FDDIB | H..IG
FFBBB | FDBCC | HHHIG
AFEEC | AAAEC | JHAGG
AFECC | JJEEG | JH..G

  31. IIIBB | FFIBA | H..BG
DFFFB | DFAAA | HHHBG
DCEEJ | DDAEJ | CHAGG
DCEJJ | CCEEG | CH..G

  32. IIIBB | FFIBA | H..BG
DFFFB | DFAAA | HHHBG
DCJJE | DDAEE | CHAGG
DCJEE | CCJEG | CH..G

  33. JFGGB | JFFFB | H..BB
FFGDB | JJGEE | HHHBE
ACGDD | AAAED | CHAEE
ACGDD | CCIII | CH..I

  34. BFFFE | BBBEE | G..HH
BFAEE | FFBEI | GHHHI
AAADJ | GCDDJ | GCCHI
ACCJJ | ACDDD | GG..I

  35. DGCJJ | DBBJC | D..HH
AGCCJ | DDBCC | DHHHI
AGFFE | AGBEE | ABBHI
GGFEE | FFFEI | AA..I
Solutions 4 problem 11 
  1. HHBBB | DHHHB | DH..F
IIBAA | DJJAB | DDAAF
IGJCC | DEJFC | EEAFF
IGGGG | EEGFC | E..CC

  2. GGGGC | JFGCC | HH..A
JJCGA | JFCCA | IHHHA
FEEAA | FFEDD | IHBBD
FEBBD | IEEBD | I..BD

  3. CCABB | CJAAA | HH..A
JCCFB | JJCFF | DHHHA
GFFFB | DDEBB | DHEEI
GGGGI | DGEEI | D..EI

  4. BBAGD | BFAAA | BH..A
FBCGD | FFCDD | BHHHA
FCCGD | JJEGD | HHEEI
FCGGI | JCEEI | J..EI
Solutions 25 problem 12 
  1. BHEED | AAGED | ABG..
BHEDD | BAEED | BBGGJ
HHHFF | CAAJD | CCGJJ
CCHFI | CFFFI | ..GII

  2. BHEEJ | AAGEJ | ABG..
BHEJJ | BAEEI | BBGGD
HHHFF | CAADI | CCGDD
CCHFI | CFFFI | ..GDD

  3. BHJJE | AAGEE | ABG..
BHJEE | BAJEI | BBGGD
HHHFF | CAADI | CCGDD
CCHFI | CFFFI | ..GDD

  4. IHDDD | IGGGG | IGF..
IHDDB | AFGDB | AFFBB
HHHEB | JFCEE | AAABC
JJHEE | JFCCE | ..ACC

  5. AHEEG | AAAEG | JFA..
AHEGG | JJEEI | JFDDI
HHHBG | FBCDI | FFDDC
HBBBG | FBCCI | ..DCC

  6. IIHCC | IFFFC | IDG..
HHHFF | DAAFC | DDGCC
JJHHB | JAGEB | DDGEE
AJBBB | AABEE | ..GGE

  7. GGHBB | EEHHH | EHH..
GIIBA | GEDBA | EEDBB
GIFFF | JDDCA | JJDCC
GIFCC | JFFCA | ..DAA

  8. FJHDD | JJHHH | IHH..
FFADD | JFADE | IIIEE
AAAGD | BFCEE | BBBEC
AGGGG | BFCCG | ..BCC

  9. AAHDD | JJHHH | JHH..
ACCDD | AJCDG | AGGGG
FFBED | BFCEE | ACCGI
BBBEE | BFFFE | ..III

  10. IIHCC | IFFFC | IDG..
JJHFF | DAAFC | DDGCC
JHHHB | JAGEB | DDGEE
AHBBB | AABEE | ..GGE

  11. GAAHH | CAFJJ | AAC..
GHHHJ | CCFFJ | ACCFI
GGEHI | BEEDI | BBBFI
GEEDD | GEBDD | ..BFD

  12. GJJHH | CBJDD | BBC..
GHHHD | CCJDD | BCCIA
GGEHA | BEEDA | BFFIA
GEEAA | GEFFF | ..FII

  13. BBBFH | EEBFF | EGG..
BFFFH | BEGJH | EEGJH
IDACC | IDCCH | IDGJJ
IDAAC | DDCAH | ..GAA

  14. IIIFH | EEIFF | EGG..
BFFFH | BEGJH | EEGJH
BDACC | DDCCH | DDGJJ
BBAAC | DBCAH | ..GAA

  15. JJEEG | JFAEG | HAA..
HJEGG | HFEEI | HADDI
CFFBG | HFCDI | AADDB
CCFBG | HCCBI | ..DBB

  16. BCGAA | BBBFA | CHH..
BCGFF | CCBFA | CJHHH
EEGDF | JEGDA | JJHDA
EGGDF | EEDDI | ..III

  17. ACEEG | AAAEG | CHA..
ACEGG | CCEEI | CHHHI
JJBBG | FFBDD | HHBDI
JFFFG | JFDDD | ..BBI

  18. AFGGE | AAAEE | JHA..
AFGEE | JJGEI | JHDDD
CFGBB | FFCDI | HHHDD
CCGBI | FCCBI | ..HBB

  19. AGGGG | AAAGD | JHA..
BBBDG | JJBDD | JHADD
BEICC | EEBFC | HHHFF
EEIII | EFFFC | ..HCC

  20. DCBBB | DCAFB | DHA..
CCBFF | DDJFB | DHAAA
CIJJF | CGJEE | HHHEA
GIIIF | GGGGE | ..HEE

  21. DJEEG | DJCEG | DHC..
JJEGG | DDEEI | DHCCI
BFFFG | BBBCI | HHHCA
BFAAG | FFBAI | ..HAA

  22. AGFFE | AAAEE | IHA..
AGFEE | FFFED | IHHHD
BGJJC | BGJDD | IIHCD
GGBJC | BBBCC | ..HCD

  23. GBBBA | EFFBA | EEH..
GBFFF | EEFBA | JEHHH
GGCCI | JJDCA | JHHAA
GDDDI | GDDCI | ..CCI

  24. GIBBB | JIAFB | JIH..
GIBFF | AAAFB | JJHHH
GGECF | AEECC | AHHDC
GEECF | GEDDD | ..DDC

  25. GBBBA | JFFBA | JJH..
GBFFF | JEFBA | EEHHH
GGCCI | EEDCA | EHHAA
GDDDI | GDDCI | ..CCI
Solutions 1 problem 13 
  1. EEAHC | BEAAA | BBBCA
EHHHC | EEBCC | ..BCA
IIGHH | IFFJJ | IDF..
GGGGJ | DDDGJ | DDFFF
Solutions 4 problem 14 
  1. DDHHA | HHHFJ | IIHFF
DDAAA | DFFFJ | I..JJ
EDABC | EEACC | IG..B
EECBB | GECCB | GGGGB

  2. DDHHB | HHHFB | IIHBB
DDAAB | DJJFF | I..BF
EDJAC | EEJCC | IG..F
EECAA | GECCA | GGGGF

  3. AFHJJ | AFFFJ | IIDDD
FFHHH | AAADJ | I..DD
EHHBC | EEACC | IG..B
EECBB | GECCB | GGGGB

  4. DDAAH | DDAFG | DGGGG
BBFAH | BDFFH | B..GH
CBFAA | EECJH | BE..I
CCFJJ | ECCJH | EEIII
Solutions 6 problem 15 
  1. HDAAE | DDAEE | FAAGG
HHHEE | DDDEG | FA..G
IHCBB | FFJBC | F..BG
IHCCB | IFJCC | IJJBG

  2. AHEEJ | AAAEJ | DDAGG
AHEJJ | IDEEG | DD..G
HHHBC | IBFFF | D..CG
HBBBC | IBFCC | IFFCG

  3. AHJJE | AAAEE | DDAGG
AHJEE | IDJEG | DD..G
HHHBC | IBFFF | D..CG
HBBBC | IBFCC | IFFCG

  4. JJHEE | HHHEI | FAHHI
JACCE | JACEE | FA..I
AABCC | FFBDC | F..GI
BBBDD | BFGDD | GGGGD

  5. CCAAE | CFAEE | HAAGG
HCCEE | HFCEG | HA..G
JFFDD | HFBDD | B..DG
JJFII | HJBID | BBBIG

  6. CCAAG | CFAEG | HAAEE
HCCGG | HFCEE | HA..E
JFFIG | HFBID | B..II
JJFDG | HJBDD | BBBDD
Solutions 7 problem 16 
  1. EHHII | EEAGI | GGGGI
EEHHH | CEAAA | CCG..
CCHBA | CDFFA | ..JJB
DDDBB | DDFJB | FFFJB

  2. BBCHG | BHHHC | BIIHH
JJCCG | FFFCC | BBI..
JAFFG | JDFEG | ..IEE
DAAGG | DDAEE | DDAAE

  3. DDDCB | ADDCB | AAHBB
FFFBB | ADFCC | HHH..
AEEJC | AEFFC | ..HHG
IIEJJ | IEEGJ | IGGGG

  4. FIIED | AIEED | AIHHD
FFEED | AFEDD | HHH..
AABCJ | AFBCC | ..HGC
BBBCJ | BFGJJ | GGGGC

  5. CAABD | FACBD | AAHHD
CCABD | FCCDD | HHH..
FFEBB | FJEEB | ..HGI
JFEEI | JJGEI | GGGGI

  6. IBAFF | IBAAA | BBHHA
BBAFC | IFFFC | HHH..
EEJCC | IEJDD | ..HGD
EJJCD | EEGCD | GGGGD

  7. IBAFF | IBAAA | BBHHA
BBAFC | IFFFC | HHH..
JJECC | IEEDD | ..HGD
JEECD | JEGCD | GGGGD
Solutions 78 problem 17 
  1. HHBGG | BHHHF | .HIII
BBBGJ | BCCGF | .DIFF
EECGJ | DECJJ | DDAF.
ECCGA | EEAAA | DDAF.

  2. BHHAA | BBBAF | .GAAJ
BEHHH | EEBJF | .GAJJ
EEHFC | EDDFF | GGDC.
IIDFC | IGDCC | IGDC.

  3. JHABB | JJAAA | .FFGA
JHHHB | EEFFF | .EFGA
HHCCB | EDCBB | EEGG.
DIICC | DDIGC | DDIG.

  4. JHABB | JJAAA | .FFGA
JHHHB | EEFFF | .EFGA
HHCCB | EDCBB | EEGG.
DDDCC | DDIGC | IIIG.

  5. JHABB | JJAAA | .FFGA
JHHHB | EEFFF | .EFGA
HHCCB | EDCBB | EEGG.
IIICC | IDDGC | DDDG.

  6. JHABB | JJAAA | .FFGA
JHHHB | EEFFF | .EFGA
HHCCB | EDCBB | EEGG.
IDDCC | IDDGC | IIDG.

  7. CHBBG | CCBEG | .CBEE
CHAGG | DDAEE | .CBBE
HHHJG | DDAJJ | DFFF.
IIHJG | IDAFF | IAAF.

  8. CHFFE | CCBEE | .CBBB
CHFEE | FFFEB | .CAIB
HHHGA | JDAAA | JJAI.
HGGGG | JDDIG | DDDI.

  9. CHFFE | CCIEE | .CIII
CHFEE | FFFEB | .CABB
HHHGA | JDAAA | JJAB.
HGGGG | JDDBG | DDDB.

  10. CHAAE | CCIEE | .CIII
CHAEE | DDAEJ | .CAJJ
HHHFB | DDBFF | DGAJ.
HFFFB | GDBBB | GGGG.

  11. CCHDD | CFHHH | .HHJJ
FCCDD | FFCDJ | .AAIJ
FBAED | GBAEE | BBAI.
FBAEE | GGGGE | BGII.

  12. GGHHD | HHHDD | .FHDD
GCAAB | GCCDB | .FCBB
GCEAB | FEEJJ | FFCB.
GEEAA | FEIJA | IIIJ.

  13. GGHHD | HHHDD | .FHDD
GCAAJ | GCCDB | .FCBB
GCEAJ | FEEJJ | FFCB.
GEEAA | FEIBA | IIIB.

  14. GGHHE | HHHEE | .FHJJ
GAIEE | GAIEJ | .FIIJ
GBDDC | FADDD | FFBC.
GBBDC | FABCC | AABC.

  15. GGHHJ | HHHEJ | .FHEE
GAIJJ | GAIEE | .FIIE
GBDDC | FADDD | FFBC.
GBBDC | FABCC | AABC.

  16. GGHHB | HHHEB | .FHEE
GABBB | GABEE | .FIIE
GJDDC | FADDD | FFIC.
GJJDC | FAJCC | AAIC.

  17. GGHHE | HHHEE | .IHJJ
GADEE | GADEJ | .IIIJ
GDDFC | BADFF | BBBC.
GFFFC | BADCC | AABC.

  18. GGHHJ | HHHEJ | .IHEE
GADJJ | GADEE | .IIIE
GDDFC | BADFF | BBBC.
GFFFC | BADCC | AABC.

  19. GGHHD | HHHDD | .IHDD
GAAEE | GAFDE | .IFFF
GJAEC | BFFEE | BIIC.
GJAAC | JJBCC | BBBC.

  20. GGHHC | HHHEC | .IHEE
GDACC | GAAEE | .IIIE
GDDCJ | BADCJ | BFFF.
GDDJJ | AABFF | BBBF.

  21. FAHHG | HHHEG | .IHEE
FAAGG | CCAEE | .IAAE
FFBJG | CFBJJ | CIID.
BBBJG | BFDDD | CCDD.

  22. JJHHA | HHHEA | .GHEE
JCAAA | JCCEE | .GCIE
DCAFB | DDBFF | GGCI.
DFFFB | DGBBB | DGII.

  23. EEHCI | EJJCI | .JFII
BEHHH | EEJCC | .BFAA
BHHGC | BDFFC | BBFA.
DGGGG | DDAFG | DDAA.

  24. EECHF | EHHHC | .JJHH
BECCF | EEJCC | .BJAA
BIIGF | BDIFF | BBIA.
DGGGG | DDAFG | DDAA.

  25. JJCHF | JHHHC | .IIHH
BJCCF | BBBCC | .DIAA
EEBGF | DEBFF | DDIA.
EGGGG | EEAFG | DDAA.

  26. GJAAH | JJAFC | .AACC
GGGGH | JGCFH | .ACCH
BBBFF | EEBFH | EDDD.
BIIIF | BEDIH | EEDD.

  27. CFFFH | CCDDJ | .CGJJ
CFADH | FFDDH | .CGJH
AAABB | EEDBH | EGGB.
AIIIB | AEGIH | EEGB.

  28. CFFFH | CCDDD | .CGDD
CFAJH | FFJJH | .CGDH
AAABB | EEJBH | EGGB.
AIIIB | AEGIH | EEGB.

  29. JJEEG | FFFEG | .HFCC
JHEGG | JHEEC | .HFFC
BBAAG | BHACC | BAAD.
IIIAG | IHDDD | BBDD.

  30. CIIIG | CCAAG | .CAJJ
CIHGG | HHHAJ | .CHHJ
EEDDG | BEDAA | BFFF.
EDDDG | EEBFF | BBBF.

  31. GIIID | FFFDD | .HHDD
GIFFC | EEFDC | .EHHH
GGBCC | EJBBB | EEHA.
GAACB | GJACB | JJAA.

  32. GIIID | FFFDD | .HHDD
GIFFC | JJFDC | .JHHH
GGBCC | EEBBB | EJHA.
GAACB | GEACB | EEAA.

  33. GGGGB | GFCEB | .HCEE
FGBBB | FFBEE | .HCCE
FAIII | DDDCJ | HHHC.
FAAJI | DDAJJ | HDAA.

  34. GGGGB | GFEEB | .HECC
FGBBB | FFBEC | .HEEC
FIIIJ | DDDCC | HHHA.
FAAIJ | DDAJJ | HDAA.

  35. GGGGD | GFFDD | .HFDD
CGAEE | CBBDE | .HFFF
AAAEI | CCBEE | HHHJ.
ACIII | ACBJJ | HBBJ.

  36. GGGGI | GJJFI | .HJFF
BGAAI | BFFFE | .HJEE
BCCAI | CCDEE | HHHE.
BBCAA | CBDDA | HDDD.

  37. GGGGD | GFFDD | .HFDD
IGBBB | IIIDB | .HFFF
AJBEC | JJEEB | HHHC.
AAEEC | JAECC | HAAC.

  38. GGGGF | GIICC | .HCCJ
EGAAF | EEIJC | .HCJJ
EEBAF | DEIFF | HHHB.
DDBAA | DDBFA | HDBB.

  39. GGGGF | GIICC | .HCCA
EGAAF | EEIAC | .HCAA
EEBJF | DEIFF | HHHB.
DDBJJ | DDBFJ | HDBB.

  40. GGGGB | GJJFB | .HJBB
EGIBB | EEIFA | .HJAA
EECFF | DEIFC | HHHA.
DDCCF | DDICC | HDAA.

  41. GGGGD | GFFDD | .HFDD
JGAEE | JBBDE | .HFFF
AAAEC | JJBEE | HHHC.
AIIIC | AIBCC | HBBC.

  42. CCBBG | CFBEG | .HBEE
FCCGG | FFCEE | .HBBE
FAIIG | DDDIJ | HHHI.
FAAJG | DDAJJ | HDAA.

  43. CCBBG | CFBEG | .HBEE
FCCGG | FFCEE | .HBBE
FIIIG | DDDIJ | HHHA.
FAAJG | DDAJJ | HDAA.

  44. CCBBG | CFBEG | .HBEE
FCCGG | FFCEE | .HBBE
FIIIG | JIDDD | HHHA.
FAADG | JJADD | HJAA.

  45. CCIIG | CFIEG | .HIEE
FCCGG | FFCEE | .HBBE
FABBG | DDDBJ | HHHB.
FAAJG | DDAJJ | HDAA.

  46. CCIII | CFEEI | .HEBB
FCCBB | FFCEB | .HEEB
FGGGG | DDDGJ | HHHA.
FAAJG | DDAJJ | HDAA.

  47. AAEEB | AFFEB | .HFBB
JAEBB | JJEEG | .HFFF
JAAGC | DGGGG | HHHC.
DDIIC | DDICC | HDIC.

  48. AFFFG | AAAEG | .HAEE
CFBGG | FFCEE | .HABE
CCBBG | DCCBJ | HHHB.
DDIJG | DDIJJ | HDII.

  49. AFGGE | AAAEE | .HADD
BFGEE | BBGED | .HADD
BFGCC | FFCCJ | HHHD.
BBGJC | FICJJ | HIII.

  50. AFEEG | AAAEG | .HADD
BFEGG | BBEED | .HADD
BFCJG | FFJJC | HHHD.
BBCCG | FIJCC | HIII.

  51. BFFFE | BGGEE | .HIII
BFGEE | FFGEA | .HIAA
BBCJJ | DBGJC | HHHA.
DDCCJ | DDGCC | HDAA.

  52. DCEEB | DCCEB | .HCBB
DCEBB | DDEEA | .HCAA
DFIJJ | GFFFJ | HHHA.
FFIII | GGGGJ | HGAA.

  53. EEBBB | EFFCB | .HFCC
GEBCC | EEBCA | .HFFF
GGGGI | DGAAA | HHHJ.
DDIII | DDAJJ | HDAJ.

  54. JFBBG | JJBEG | .HBEE
JFFGG | DDFEE | .HBBE
ADCIG | DDFIC | HHHI.
AACCG | DAFCC | HAAI.

  55. GGGGE | GFBEE | .HBBB
FGAEE | FFBEJ | .HHHB
FIAJC | AAAJJ | ADHC.
FIIIC | DDDCC | DDHC.

  56. GGGGJ | GFBJJ | .HBBB
FGAEE | FFBJE | .HHHB
FIAEC | AAAEE | ADHC.
FIIIC | DDDCC | DDHC.

  57. GGGGA | GFIEA | .HIEE
FGAAA | FFIEE | .HHHE
FCADB | JJIDB | CJHD.
FCBBB | CCBDD | CJHD.

  58. GGGGE | GJBEE | .HBBB
JGAEE | JJAEB | .HHHB
AAAFC | IIIFF | IDHC.
AFFFC | DDDCC | DDHC.

  59. AGIII | AAAEI | .HAEE
AGGGG | DDGEE | .HHHE
BJJFC | DDJFF | DBHC.
BFFFC | BDJCC | BBHC.

  60. AGIII | AAAEI | .HAEE
AGGGG | DDGEE | .HHHE
BBBFC | DDBFF | DJHC.
BFFFC | JDBCC | JJHC.

  61. AFEEG | AAAEG | .HACC
AFEGG | DDEEC | .HHHC
BFFIG | DDFCC | DBHJ.
BIIIG | BDFJJ | BBHJ.

  62. GGGGE | GDBEE | .HBBB
DGAEE | DDAEB | .HHHB
AAAFC | DDJFF | HHJC.
AFFFC | IJJCC | IIIC.

  63. AGFFE | AAAEE | .HAJJ
AGFEE | FFFEJ | .HHHJ
BGDDC | BGDDD | HHIC.
GGBDC | BBBCC | IIIC.

  64. AGFFJ | AAAEJ | .HAEE
AGFJJ | FFFEE | .HHHE
BGDDC | BGDDD | HHIC.
GGBDC | BBBCC | IIIC.

  65. AFFFB | AAAEB | .HAEE
AFBBB | FFBEE | .HHHE
GGGGI | GDJCC | HHCC.
DGIII | DDJJC | DDCJ.

  66. AFFFG | AAAEG | .HAEE
AFBGG | FFBEE | .HHHE
BBBIG | BDJCC | HHCC.
DIIIG | DDJJC | DDCJ.

  67. AJEEG | AAAEG | .HACC
AJEGG | JJEEC | .HHHC
BBIIG | FFICC | HHID.
BFFFG | BFDDD | BBDD.

  68. BBBCA | DDBCA | .HIII
BDAAA | DDBCC | .HHHI
EEAGC | DEFFC | HHJJ.
EGGGG | EEFJG | FFFJ.

  69. DDDCA | IIBCA | .HBBB
DDAAA | IDBCC | .HHHB
EEAGC | IEFFC | HHJJ.
EGGGG | EEFJG | FFFJ.

  70. IIICA | DDBCA | .HBBB
IDAAA | DDBCC | .HHHB
EEAGC | DEFFC | HHJJ.
EGGGG | EEFJG | FFFJ.

  71. GGGGA | GDEEA | .HEJJ
DGAAA | DDIEJ | .HEEJ
BBAFC | DDIFF | HHHC.
BFFFC | BIICC | BBHC.

  72. GGGGA | GDJEA | .HJEE
DGAAA | DDIEE | .HJJE
BBAFC | DDIFF | HHHC.
BFFFC | BIICC | BBHC.

  73. AFFFE | AAAEE | .HACC
AFIEE | FFIEC | .HIIC
GGGGB | GDBCC | HHHJ.
DGBBB | DDBJJ | DDHJ.

  74. AFBBG | AAAEG | .HAEE
AFBGG | FFBEE | .HBBE
CCDDG | FCDDD | HHHJ.
IIIDG | FCIJJ | CCHJ.

  75. GGGGD | JJGDD | .JHDD
FFFGB | CCFDB | .JHHH
EEIII | CEFFB | CHHA.
EAABI | EEABB | CCAA.

  76. CFFFB | CCIIB | .CHBB
CFABB | FFIDD | .CHHH
AAAGD | EEIDD | EHHJ.
AGGGG | AEJDG | EEJJ.

  77. CIIID | CCADD | .CHDD
CIBBB | AAADB | .CHHH
EEBFJ | AEBFF | AHHG.
EFFFJ | EEGJJ | GGGG.

  78. GIFDD | AIFFF | .IIHH
GFFDD | AAADC | .HHHC
GGAJD | EEACC | EBBH.
GBBJJ | GEBCJ | EEBC.
Solutions 17 problem 18 
  1. IHHDD | IFHHH | I.HGG
IFFDD | AFBDG | A.BBG
CCFED | JCBEE | AAA.G
JJFEE | JCBBE | CCA.G

  2. AHBBE | AAAEE | F.AGG
AHBEE | FFBEG | F.BBG
HHHDJ | CFDDJ | CCI.G
CCHJJ | CFDDD | III.G

  3. AHBBG | AAAEG | D.AEE
AHBGG | DDBEE | D.BBE
HHHCG | DJJCC | DFF.C
IIHCG | IJFFF | IJF.C

  4. DDHHJ | DDEEJ | D.EGG
HHHJJ | IDBEG | B.EEG
CCHFA | ICBFF | BBB.G
IFFFA | ICAAA | CCA.G

  5. DDHHE | DDJEE | D.JGG
HHHEE | IDBEG | B.JJG
CCHFA | ICBFF | BBB.G
IFFFA | ICAAA | CCA.G

  6. FAHHE | HHHEE | D.HGG
FAAEE | DDAEG | D.AAG
FFCCJ | DFCJJ | DBB.G
IBBCC | IFBJC | IIB.G

  7. IAHHG | HHHEG | D.HEE
IAAGG | DDAEE | D.AAE
IIBCG | DJBCC | DFF.C
BBBCG | BJFFF | JJF.C

  8. GGGGE | GFDEE | H.DJJ
HGIEE | HFDEJ | H.DDJ
IIIBC | HFDCC | FFA.B
AACBB | HACCB | FAA.B

  9. GGGGJ | GFDEJ | H.DEE
HGIJJ | HFDEE | H.DDE
IIIBC | HFDCC | FFA.B
AACBB | HACCB | FAA.B

  10. GGGGE | GFBEE | H.BBB
HGDEE | HFDEB | H.AAB
IDDCJ | HFDCC | FFA.C
IIICJ | HADJJ | FAA.C

  11. CCBBE | CFBEE | H.BGG
HCCEE | HFCEG | H.BBG
AFFDJ | HFDDJ | III.G
AAFJJ | HADDD | IAA.G

  12. CCBBE | CFBEE | H.BGG
HCCEE | HFCEG | H.BBG
AIIJJ | HFIDJ | FFI.G
AADDD | HADDJ | FAA.G

  13. CCBBE | CFBEE | H.BGG
HCCEE | HFCEG | H.BBG
IIIDJ | HFDDJ | FFA.G
AAIJJ | HADDD | FAA.G

  14. CCBBE | CFBEE | H.BGG
HCCEE | HFCEG | H.BBG
IIIJJ | HFIDJ | FFA.G
AADDD | HADDJ | FAA.G

  15. BJCCI | BJCFI | G.HII
JJBCC | BBBFC | G.HHH
EEDDA | GEDFF | GHH.F
EDDDA | EEAAA | GGA.F

  16. BFFFD | BBBDD | G.HDD
BFIII | FFBDI | G.HHH
EEJCA | GEJCC | GHH.C
EJJCA | EEAAA | GGA.C

  17. BFFFD | BBBDD | G.HDD
BFIII | FFBDI | G.HHH
JJECA | GEECC | GHH.C
JEECA | JEAAA | GGA.C
Solutions 12 problem 19 
  1. HFFCG | DDFCC | DDD.C
HHHCG | IDFFF | III.C
AHBBG | AAAEG | J.AEE
AHBGG | JJBEE | J.BBE

  2. HFFCG | DDFCC | DDD.C
HHHCG | IDFFF | III.C
JHBBG | JJBEG | A.BEE
JHAGG | AAAEE | A.BBE

  3. CCHDJ | BCDDJ | BBB.G
IIHJJ | BCDDD | CCB.G
IHHHE | FFFEE | A.FGG
IHAEE | AAAEG | A.FFG

  4. FFFHH | GJFDD | GJJ.D
CHHHD | CJFFD | GGA.D
BBBHE | CCBEE | G.AAA
BCIEE | BCIEA | G.IIA

  5. CCBHH | ICBBB | FFF.G
DHHHB | ICFFB | CCF.G
DDAHJ | IDEEJ | I.EGG
DDAJJ | AAAEG | A.EEG

  6. CCBHH | ICBBB | FFF.G
DHHHB | ICFFB | CCF.G
DDAHE | IDJEE | I.JGG
DDAEE | AAAEG | A.JJG

  7. AAIHH | IIIJJ | FFF.G
AHHHJ | ACFFJ | ACF.G
DDDHB | CCEEB | A.EGG
DDBBB | CDBEG | C.EEG

  8. EEAHH | GEAAA | GFF.A
EHHHD | EEFFF | GGF.A
JCCHD | CCBDD | G.BBB
JJCID | CJBID | G.IIB

  9. GGAAI | EEABB | EAA.B
GHHAI | GEHHH | EEH.B
GCJJI | FFFDI | C.FBB
GCJDD | CCJDD | C.FFD

  10. EEAAF | GEABB | GAA.B
EHHAF | EEHHH | GGH.B
JDCCF | JJCFF | G.IBB
JDDCC | DDDFC | G.III

  11. DDDCG | FDDCC | III.C
FFHCG | FDHHH | IHH.C
AFBBG | AAAEG | J.AEE
AFBGG | JJBEE | J.BBE

  12. DDDCG | FDDCC | III.C
FFHCG | FDHHH | IHH.C
JFBBG | JJBEG | A.BEE
JFAGG | AAAEE | A.BBE
Solutions 44 problem 20 
  1. HDDDI | JGDDI | GGGG.
HHHAA | JJDAI | GJAA.
CHFFA | CCEEI | .CEBB
CHFBB | FFFEB | .CEEB

  2. CHBBG | CCBDD | FCBD.
CHHHG | FFDDD | FCBB.
HHAAG | JFAEG | .AAEE
JJIGG | JFIEE | .AIIE

  3. AHIDD | AAADD | JFAD.
AHIBB | JJIBD | JFIB.
HHHGB | CFFEE | .FCBE
HGGGG | CCFEG | .CCEE

  4. AHJDD | AAADD | IFAD.
IHJBB | IJJBD | IFAB.
HHHGB | CFFEE | .FCBE
HGGGG | CCFEG | .CCEE

  5. IHAJJ | IDDDJ | IFDD.
IHABB | AAABJ | AFDB.
HHHGB | CFFEE | .FCBE
HGGGG | CCFEG | .CCEE

  6. IHADD | IJJDD | IFJD.
IHABB | AAABD | AFJB.
HHHGB | CFFEE | .FCBE
HGGGG | CCFEG | .CCEE

  7. JHIDD | JJIDD | AFID.
JHABB | AAABD | AFIB.
HHHGB | CFFEE | .FCBE
HGGGG | CCFEG | .CCEE

  8. AAHDD | AFIDD | IIID.
FAHBB | FFHBD | JJHB.
FAAGB | CJHEE | .JCBE
FGGGG | CCHEG | .CCEE

  9. DFHEE | DFFFE | DIIG.
FFHEJ | DDHEE | DIHG.
ACCBJ | CCHJJ | .IGGB
AACBB | CAHGB | .AAGB

  10. DFHJJ | DFFFJ | DIIG.
FFHEE | DDHEJ | DIHG.
ACCBE | CCHEE | .IGGB
AACBB | CAHGB | .AAGB

  11. CCHHA | ICEEA | IIIE.
HHHJJ | DCEJA | CCEE.
DDHGJ | DFFBA | .BFAA
DGGGG | DBBBG | .BFFF

  12. DDHIJ | DDAIJ | DGII.
HHHJJ | GDAAA | GGGG.
CHFFA | CCEEA | .CEBB
CHFBB | FFFEB | .CEEB

  13. CCHBI | ACFBI | AABB.
HHHBI | ACFEE | CCBE.
AGHHI | AJFDE | .FFEE
JGGGG | JJGDD | .FDDD

  14. GGHIJ | EEHHH | EHHA.
GAAIJ | GEAJJ | EEAA.
GDIIB | FFCCB | .FCBB
GDDBB | DDDCC | .FFFC

  15. GGHJJ | EEHHH | EHHA.
GAAJC | GEAJC | EEAA.
GDBCC | FFBBB | .FIII
GDDCB | DDDCB | .FFFI

  16. GGHII | EEHHH | EHHA.
GAABI | GEABB | EEAA.
GCCBI | CCDJJ | .FFFJ
GDCBB | CDDFF | .DDFJ

  17. GGHII | EEHHH | EHHA.
GAAFI | GEAFF | EEAA.
GFFFI | DDDCJ | .BBCC
GBBCC | DDBCJ | .DBJJ

  18. GGHIC | EEHHH | EHHC.
GIIIC | GEACC | EEAC.
GDBJJ | FFBBB | .FAAA
GDDJB | DDDJB | .FFFA

  19. EEHGC | AEHHH | AHHC.
EFFGC | EEFCC | AAAC.
JJBGG | DDFFF | .DABI
JDBGI | JDBGI | .DBBI

  20. EEHGC | JEHHH | JHHC.
EFFGC | EEFCC | JJAC.
AABGG | DAFFF | .AABI
DDBGI | DDBGI | .DBBI

  21. JJHGC | EEHHH | EHHC.
JFFGC | JEFCC | EEAC.
AABGG | DAFFF | .AABI
DDBGI | DDBGI | .DBBI

  22. GGBHH | AIBBB | AIII.
GHHHB | GJJCB | AAAC.
GDJHE | FFJEE | .FACC
GDDEE | DDDEC | .FFFC

  23. BCCHH | BECJJ | EEGG.
BHHHJ | EECGJ | ECCG.
BBAHI | DBAAA | .FFGA
DDIII | DDFFF | .DFGA

  24. GGBHI | EEBJJ | EBBJ.
GBBHI | GEAHJ | EEAH.
GDCCI | FFCHI | .FAAA
GDDCC | DDDHC | .FFFA

  25. BBGHH | BHHHF | BIIH.
EBGCC | EECCF | BIAA.
EEGGC | JECDF | .IAFF
JJGDD | JAGDD | .AAFD

  26. BBGHH | BHHHF | BIIH.
JBGCC | JJCCF | BIAA.
JEGGC | EECDF | .IAFF
EEGDD | EAGDD | .AAFD

  27. EEGHH | EHHHF | IIIH.
BEGCC | EECCF | IBAA.
BBGGC | JBCDF | .BAFF
JJGDD | JAGDD | .AAFD

  28. GGGGC | GAFFF | HAAC.
HGIDC | HAFCC | HFFC.
BAIDD | HAEED | .BEJJ
BBIDD | HBIEJ | .BEEJ

  29. GGGGC | GAFFF | HAAC.
HGIDC | HAFCC | HFFC.
BAIDD | HAJED | .BJEE
BBIDD | HBIEE | .BJJE

  30. AFCDD | AAADD | HCAD.
HFCBB | HCCBD | HCAB.
IFFEB | HJFEE | .JJBG
IIIEE | HJFGE | .GGGG

  31. AAIII | ABFFF | HBBB.
HAICJ | HBFCJ | HFFB.
GAAJJ | HEECC | .EDDD
GGGGC | HGEDC | .EEDD

  32. BBCJJ | BECCJ | HEEC.
HBCDD | HEEDJ | HAEC.
GBDDD | HBFFF | .AAAI
GGGGI | HGFAI | .FFAI

  33. IIIJJ | IFBBJ | HDDB.
HGGGG | HFDGJ | HDDB.
AFFEG | HFCEE | .DBBC
AAFEE | HACCE | .AACC

  34. GGBJJ | EEBJI | EBBH.
GBBHJ | GEAHI | EEAH.
GDCCI | FFCHI | .FAAA
GDDCC | DDDHC | .FFFA

  35. BBBAA | GGBAF | HHAA.
BDDFA | GDBFF | GHHH.
DDDFC | GEEJJ | .HECJ
IIIFC | GEICC | .EECJ

  36. EIIDD | EEIDD | HHID.
EEFCC | AEFFD | AHHH.
FFFCB | AJJCB | .HGBB
AAJBB | AGJCC | .GGGG

  37. CCAJG | CAAJJ | HFFF.
ICCJG | IACFF | HHHF.
IDBBG | AABEG | .HBEE
IDDGG | DDDEE | .HBBE

  38. BCDDG | BCDDD | HFFF.
CCBDG | BBBFF | HHHF.
CAIIG | CJIEG | .HIEE
JAAGG | JJAEE | .HAAE

  39. IJDDG | JJDDD | HFFF.
IIIDG | JAAFF | HHHF.
CCBBG | CABEG | .HBEE
ACCGG | AACEE | .HBBE

  40. IFJAA | IFFFA | IIHG.
FFJBB | DJJBA | HHHG.
DDECB | DEEGA | .HCGA
DEECB | DECCB | .HCGG

  41. IJFAA | IJFFA | IIHG.
FFFBB | DJJBA | HHHG.
DDECB | DEEGA | .HCGA
DEECB | DECCB | .HCGG

  42. IFFFC | IGGGG | IGHC.
IFADC | FFGCC | HHHC.
BJADD | BJAED | .HAEE
JJBDD | BBBEE | .HAAE

  43. EJJCA | EEJCA | IIIH.
EEAAA | DEJCC | IHHH.
DDAGC | DFFBC | .BFHH
DGGGG | DBBBG | .BFFF

  44. JEECA | JJECA | IIIH.
JEAAA | DEECC | IHHH.
DDAGC | DFFBC | .BFHH
DGGGG | DBBBG | .BFFF
Solutions 5 problem 21 
  1. HHDDG | IHHHE | IHAEE
AADDG | IADEE | .AAE.
CCBDG | ICBJG | .FFJ.
BBBGG | BCFFF | CCFJJ

  2. HHDDG | IHHHJ | IHAJJ
AADDG | IADCC | .AAJ.
BBEDG | IEECG | .FFC.
BEEGG | BEFFF | BBFCC

  3. IHDDG | IHHHE | HHAEE
AADDG | IADEE | .AAE.
CCBDG | ICBJG | .FFJ.
BBBGG | BCFFF | CCFJJ

  4. IHDDG | IHHHJ | HHAJJ
AADDG | IADCC | .AAJ.
BBEDG | IEECG | .FFC.
BEEGG | BEFFF | BBFCC

  5. GGGGC | GFICC | HHIII
FGCAA | FFCCA | .HHH.
FBBDD | JJEDA | .HEE.
FBDDD | JBEEA | JBBEA
Solutions 0 problem 22
Solutions 30 problem 23 
  1. HEEDD | BBECC | .BCC.
HEGDD | HEEDC | HBCII
GGGGD | HFFGJ | BBAIJ
AAFFF | HAFJJ | .AAI.

  2. AHCGG | AAAEE | .CAE.
IHCGD | ICCGE | ICAEE
HHHGD | JBFDD | IBFFF
JJHGD | JFFBD | .BBB.

  3. FHIII | EEIJJ | .EGG.
FHHHJ | EBBGJ | EEBGA
FFHDA | CFDDA | CCBGA
CCHAA | CFDDD | .BBG.

  4. BHDII | BDDEE | .GFE.
BHHHI | ADDDE | AGFEE
BBHJI | ABFFC | GGFCC
AAHJJ | AGCFJ | .GCC.

  5. DHAAG | DDAEE | .AAE.
DHHHG | DFFIE | DAFEE
HHBBG | CJJIG | CCFFF
CCBGG | CJBII | .JBB.

  6. AHDDD | AAAEE | .FAE.
AHDDI | FJBDE | FFBEE
HHHGI | FJBCI | JJCCI
HGGGG | FCBBG | .CCB.

  7. AHIII | AAAEE | .FAE.
AHIJJ | FDCJE | FFCEE
HHHGJ | FDBBB | DDCCB
HGGGG | FDBCG | .DBC.

  8. AHJII | AAAEE | .FAE.
AHJJI | FDCJE | FFCEE
HHHGI | FDBBB | DDCCB
HGGGG | FDBCG | .DBC.

  9. AHDDD | AAAEE | .FAE.
AHDDI | BBCDE | BFCEE
HHHGI | FBJJI | FFCCI
HGGGG | FBJCG | .BJC.

  10. AHIDD | AAAEE | .FAE.
AHIDD | BBIDE | BFIEE
HHHGD | FBJJC | FFJCC
HGGGG | FBCJG | .BCC.

  11. AHDDD | AAAEE | .FAE.
AHDDI | JJBDE | JFBEE
HHHGI | FJBCI | FFCCI
HGGGG | FCBBG | .CCB.

  12. AHCEE | AAAJE | .CAJ.
DHCEI | DCCEE | DCAJJ
HHHGI | DDFBI | DBFFI
HGGGG | FFFBG | .BBB.

  13. AHCJJ | AAAEE | .CAE.
DHCJI | DCCJE | DCAEE
HHHGI | DDFBI | DBFFI
HGGGG | FFFBG | .BBB.

  14. BHCDF | AADDC | .BDD.
BHCCF | BADCC | BBIII
HHHGF | EAAFF | EEAJI
HGGGG | EEJFG | .EJJ.

  15. GHHDD | EEADD | .EAD.
GIHHH | EIIID | EEAAA
GGHFC | BJJFF | BBBCA
GFFFC | GJBCC | .JBC.

  16. CHHAA | EECFA | .EII.
CCHHH | ECCFA | EEIBB
GDHFF | DDJFA | DDIBA
GGGGF | DGJBB | .JJB.

  17. AHHDD | AAADD | .FAD.
IIHHH | GGGGD | GFAJJ
IBHEC | FGEEJ | FFBCJ
IBEEC | FBECC | .BBC.

  18. DHHCC | GGJAC | .JJA.
DDHHH | GDIAC | GJICC
DDHAA | GFFAE | BBIEE
BBFFF | GBFEE | .BIE.

  19. DHHCC | BBBAC | .GBA.
DDHHH | BDIAC | BGICC
DDHAA | JFFAE | GGIEE
JJFFF | JGFEE | .GIE.

  20. GJHBB | JJHHH | .HHA.
GAACB | JEACC | EEAAC
GGICB | EEDBB | EFFFC
GDIII | GDDFF | .DDF.

  21. DDHCC | DDDAC | .GGA.
IDHHH | IJGAC | JJGCC
BHHAA | IFFAE | JBGEE
BBFFF | IBFEE | .BGE.

  22. BAAHH | BBACC | .FCC.
BHHHI | FDAEC | FFCEE
BBGHI | FDAEE | DDAJE
GGGGI | FDJGI | .DJJ.

  23. GEIIA | FEEIA | .HHI.
GEEBB | FJEBA | JJHHH
GGCCB | FFDCA | JFHAA
GDDDB | GDDCB | .FCC.

  24. GEIIA | FEEIA | .HHI.
GEEBB | FFEBA | JFHHH
GGCCB | JJDCA | JFHAA
GDDDB | GDDCB | .FCC.

  25. BCAEE | BCCGE | .HCG.
BCAEI | AAAEE | AHCGG
BBFDI | JBFFI | HHHGI
FFFDD | JJDDD | .JHG.

  26. IIIAA | IFFFA | .HJF.
DGGGG | BGJJA | BHJFF
DDGEC | BDEEA | HHHCA
DDEEC | BBECC | .BHC.

  27. IIIAA | IFFJA | .HFJ.
DGGGG | BGJJA | BHFFF
DDGEC | BDEEA | HHHCA
DDEEC | BBECC | .BHC.

  28. AAFII | ABBEE | .BHE.
DAFFI | DDBFE | HHHEE
DAAGI | DJBFC | DHBCC
JGGGG | JJCFG | .HCC.

  29. GGGGA | GJFAA | .JHH.
DGFFI | JJFAI | HHHCC
DDBFI | EDAAC | EEHBC
DDBFI | EEBCC | .EBB.

  30. JDDCC | JDDGC | .DHH.
IIFFF | JJDGC | HHHCC
IAFGB | EFFGB | EEHBB
IAABB | EEAGG | .EAA.
Solutions 1 problem 24 
  1. BBBHH | AFBDD | A.G.D
BHHHD | AFBCD | FFGCD
AAJHE | AJJEE | FGGCC
IIIEE | IJGEC | F.G.C
Jul 2, 2000 by k16@chiba.email.ne.jp