Origami Checkerboard


#14

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

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