
Mikhail Botvinnik lost this game — and the engine says it slipped away on move 25 (Rxb2). They think you'd have lost it too. Take the board at that exact moment and prove them wrong.
At move 25, Botvinnik grabbed material with Rxb2, but walked directly into a tactic that shattered his position—losing 305 centipawns of advantage in one move. The correct move was Bxf3, which kept White completely winning instead.
Done gloating? Your own games have moments like this too — we'll find them.
Analysis by Stockfish; commentary AI-written from the engine's findings. BetterChess is a practice tool — no rating guarantees, only fewer blunders.
PRINTED CHESS PUZZLE CARDS
54 poker-size cards in a tuck box. Puzzle on the front, solution on the back.