Origami Checkerboard


#11

Legend
Valley folding
Mountain folding
0.
      →
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 □□□□□
 □□□□□
 □□□□□
 □□□□□
     
1.
← 
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 □□□□
 □□□□
 □□□□
 □□□□
  
2.
 ↓
  □□□ 
  □□□
  □□□
  □□□
  □□□
3.
  □■□
  □□□
  □□□ 
  □□□
 ↑
4.
  □■□
  □□□
  □■□

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