Magnus Carlsen: 35...Rh1+? (blitz, 2023-07-01)

Deep puzzles: what the analysis missed

8 moves

Magnus Carlsen to move, Black. Lichess's analysis gave the move played no mark (+0.42 before, +0.88 after). A 20-million-node search calls it a mistake, 11 win-chance points against a best move that is unique. Find it before opening the sideline.

The game move. Lichess: +0.42 to +0.88, no label. At 20M nodes: mistake, 11.5 win% given up, 11 points worse than Rh2.