Why does Stockfish not find a simple forced (always only 1 move possible) mate in 5? | Stockfish | Page 1

serene burrow Jun 30, 2025, 11:15 AM

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I know, that the search tree is aggressively cut down, but should not forced moves calculated till they are not forced anymore?

📎 M_in_5.pgn

junior swan Jun 30, 2025, 11:16 AM

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That is a mate in 10

serene burrow Jun 30, 2025, 11:18 AM

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No 5!

junior swan Jun 30, 2025, 11:18 AM

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No... 10

serene burrow Jun 30, 2025, 11:19 AM

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Knight c6!

junior swan Jun 30, 2025, 11:20 AM

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c2+

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I think the position that you are looking for is
1Q6/N2k4/1p1pp3/1rp1p3/1b1p4/2p5/8/5K2 w - - 0 1
and not
1Q6/N2k4/1p1pp3/1rp1p3/1b1p4/2p5/8/4K3 w - - 0 1

serene burrow Jun 30, 2025, 11:23 AM

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OMG! I am sorry! The white king should be at f1!

#Why does Stockfish not find a simple forced (always only 1 move possible) mate in 5?