Binary Puzzle sizes
DIGIGMA Binary Puzzle ships two live sizes: 6×6 and 8×8. Both are one 0-and-1 grid. The rules do not change with the size.
On 6×6 each row and column needs three 0s and three 1s. On 8×8 the half is four. No three identical in a line, and every row unique, every column unique, on both sizes.
Start on 6×6 Beginner. When that feels easy, open 8×8. You do not need to guess on either size.