Today's puzzle for August 19, 2026.
Each day has a unique board with a permanent URL.
New to the rules? See the how-to-play guide. Missed a day? Browse the archive.
Tap cycles a cell: shade it, circle it as safe, or clear it. Shade duplicates so no number repeats in a row or column — shaded cells may never touch, and the white cells must stay connected.
Wednesday puzzle
Today's puzzle for August 19, 2026.
Each day has a unique board with a permanent URL.
New to the rules? See the how-to-play guide. Missed a day? Browse the archive.