Origami Checkerboard


#20

Legend
Valley folding
Mountain folding
0.
       ←
 □□□□□□
 □□□□□□
 □□□□□□
 □□□□□□
 □□□□□□
 □□□□□□
      
1.
 □□□□■
 □□□□■
 □□□□■
 □□□□■
 □□□□■
 □□□□■
↑   
2.
↑
 □□□□■
 □□□□■
 □□□□■ 
 □□□□■
 ■■□□■
  ■□□■
3.
 □□□□■ 
 ■■□□■
 ■■□□■
      →
4.
      ←
 □□□□■
 ■■□□■
 ■■□□
    
5.
 □■□
 ■■■
 ■■□
invented by Vesa Timonen on Sep 5, 2017

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