Logic games
Grids, deductions and chains of reasoning. No luck required, just careful thinking.
3 results
Chain (opens the game in a new tab)
A free daily dots-and-boxes endgame. The boxes are counted, you are already winning, and exactly one edge keeps it. Draw the wrong one and a perfect engine plays the game out, so the win never comes back. Free daily, no signup.
Chain: details and ratingsMate (opens the game in a new tab)
A free daily chess puzzle. White to play and force checkmate in two, with exactly one first move that works. Tap a piece and its legal squares light up, so no chess notation is needed. Free daily, no signup.
Mate: details and ratingsYose (opens the game in a new tab)
A free daily Go endgame. The territories are settled and a few points are still open. You play the gold stones against a perfect engine, and the komi is set so that best play wins by exactly half a point, so every point counts. Free daily, no signup.
Yose: details and ratings