Origami Checkerboard


#27

Legend
Valley folding
Mountain folding
0.
      ←
 □□□□□
 □□□□□
 □□□□□
 □□□□□
 □□□□□
     
1.
→ 
 □□□■
 □□□■
 □□□■
 □□□■
 □□□■
  
2.
  ■□■
  ■□■
  ■□■ 
  ■□■
  ■□■
 ↓
3.
  ■□■
  ■□■
  ■□■

Nov 23, 2004 by k16@chiba.email.ne.jp