Alireza Firouzja: 28...Qe6? (blitz, 2024-05-18)

Deep puzzles: what the analysis missed

8 手

Alireza Firouzja to move, Black. Lichess's analysis gave the move played no mark (-0.87 before, -0.68 after). A 20-million-node search calls it a mistake, 13 win-chance points against a best move that is unique. Find it before opening the sideline.

The game move. Lichess: -0.87 to -0.68, no label. At 20M nodes: inaccuracy, 9.9 win% given up, 13 points worse than Qf7.