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6x6 Binary Puzzle
A compact board for learning the three rules and building a quick daily habit.
Pick the amount of space you want to scan, then choose the depth of reasoning. Every route opens a real, uniquely solvable board.
Compare the libraryA compact board for learning the three rules and building a quick daily habit.
The classic everyday size, with enough space for satisfying chains of deductions.
A longer logic workout that rewards careful balance and line comparison.
A substantial grid for experienced players who enjoy deeper pattern tracking.
The largest board, tuned for patient solvers and comfortable mobile zoom-free play.
Labels combine clue layout, logical rule depth, and unique-solution search effort. A sparse board is not automatically a hard board.