Seed 1007: White wins in 28 moves
55 手
Misty 1.6 plays itself at thirty seconds a move. Each side sees only its own pieces and the squares they can move to. There is no check and no checkmate: the game ends when a king is taken.
I'm suspicious of this opening for Black and usually score well against it; I play c4, as White does here, and White builds a center that is hard to fight. Black did not know White had played 1.e4, and across the twenty first moves it could not rule out, d5 was a reasonable choic…
An interesting way to break. The knight is offered, and when the pawn takes it the d-file opens and the rook on d8 takes White's queen: rook and knight for queen, plus the pawn on c5. Black was about three pawns worse before this, and after 11...Qxc5 the game is level. In the gam…
The mistake that makes the trap work. White did not know Black had castled long: it had the black king on e8 in more than half the positions it thought possible, the queen on d8 in about half, and a rook there in about one in a hundred. On that picture, taking the knight was its…
Black has given rook and knight for queen and pawn, and White's extra pawn from the opening is gone. I actually prefer having more pieces in fog, so I may favor White here. Stockfish calls it level.
13...Be7 is safer and gives Black better chances: 14.Nb3 hits the queen and bishop at once and the bishop is lost. Stockfish has Be7 level and Bc5 four pawns worse. But Black could not see the knight arrive on d4, and it placed a knight there in almost none of its possible positi…
I like 15.Bxc5 here. On White's own information it was the better capture by about a pawn across the 18 positions it thought possible. On the real board Nxc5 is half a pawn better. Either way the bishop is won.
Black wins a pawn: after 20.Bxf2 Qxc3 it has traded a knight for a knight and a pawn. But White's pieces and its grip on the black king are overwhelming: White is one pawn up in material and about seven pawns up by Stockfish. The search wanted 19...Qxf2+, which loses the queen, a…
Would this be risky with Black's king on b8? It would, since the king could take the bishop. But White knew exactly where the king was: only one position fit what it had seen, with the king on c8. The bishop now covers b8, and it is Stockfish's first choice.
Too careful. 22.Na5 threatens Rb8 and wins the queen for a rook, about four pawns better. White could see the whole position, but Misty's search, which ends each line with a one-move look, rated Na5 far below the retreat.
Nice, bringing the knight back for control: it covers b7 and d7 and keeps the black king locked in. It is Stockfish's first choice, and Misty picked it in three re-runs out of three. Maybe Black could have tried ...c6 at some point to give the king room, but here it fails: 22...c…
Just in time, and it does stop Black's attack: h3, Rf1 and Rd2 would have thrown away most of the lead. White could not see it, though. It had not seen the rook reach e2 and placed it there in almost none of its possible positions. Run again, Misty chose Rd2 twice, which loses to…