3
votes
Why does Stockfish miss mate in 5 with only two legal moves?
There is no mate in 4. Black's best move is 1...e1=Q, after which White goes 2. Bg2+ Kb8 3. a7+ Kc8 4. a8=Q+ with a decisive advantage, but no immediate checkmate. M14 is correct, White takes several ...
1
vote
Why does f3 weaken white's position here?
White's troubles started with 5. Nh4, which is an insufficient answer to 4... Nb4. The evaluation that you quote, -2, stems from this.
7... Bxb1 is likewise bad, allowing white to consolidate to a ...
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