Puzzle Setup

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Grid Size

Difficulty

Highlight Errors

Auto-Check

Timer

Status

Select size + difficulty, then hit Start Puzzle.

How to Play

Click any blank cell to cycle it:
blank → 0 → 1 → blank

Three rules to satisfy:
1) Equal 0s and 1s in every row & column.
2) No three identical digits in a row (no 000 or 111).
3) No two rows or columns are identical.

Zero — Blue

One — Pink

Blank — click to fill

Not started Puzzle — Seed —

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