Origami Checkerboard


#24

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

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