Dmitry Andreikin: 69...Kg3? (blitz, 2026-08-28)

Deep puzzles: what the analysis missed

8 moves

Dmitry Andreikin to move, Black. Lichess's analysis gave the move played no mark (+1.32 before, +1.67 after). A 20-million-node search calls it a blunder, 17 win-chance points against a best move that is unique. Find it before opening the sideline.

The game move. Lichess: +1.32 to +1.67, no label. At 20M nodes: blunder, 16.0 win% given up, 17 points worse than g5.