Origami Checkerboard


#01

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

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