Origami Checkerboard


#16

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

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