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MentoChess › Puzzle of the day › May 2026

Daily chess puzzles, May 2026

Train on your own mistakes

MentoChess reads your Chess.com, Lichess and tournament games, finds the mistakes you repeat and builds training from your own positions. Free, no ads.

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Lessons and guides are written by the MentoChess coaching team. Puzzles come from the Lichess puzzle database (CC0); opening names from the open lichess-org/chess-openings list (CC0). Piece set “cburnett” by Colin M.L. Burnett.