Sergei Zhigalko: 33...e4? (blitz, 2026-07-14)

Deep puzzles: what the analysis missed

8 手

Sergei Zhigalko to move, Black. Lichess's analysis gave the move played no mark (+0.84 before, +1.04 after). A 20-million-node search calls it a blunder, 23 win-chance points against a best move that is unique. Find it before opening the sideline.

The game move. Lichess: +0.84 to +1.04, no label. At 20M nodes: blunder, 22.9 win% given up, 23 points worse than Kd7.