6x6 puzzles
8x8 puzzles
10x10 puzzles
12x12 puzzles
14x14 puzzles
Special puzzle
Archive
Binary puzzle of August 20, 2018
1
1
1
0
1
0
0
1
0
0
1
0
0
1
0
0
Start again
More hard 8x8 puzzles
Print this puzzle
Choose a print size:
Show solution
Back
1
0
0
1
1
0
0
1
0
1
1
0
0
1
1
0
1
0
1
1
0
0
1
0
0
1
0
0
1
1
0
1
1
1
0
0
1
0
1
0
0
0
1
1
0
1
1
0
0
1
1
0
1
0
0
1
1
0
0
1
0
1
0
1
Close