Chessmark
0-1 · checkmatereplaygame 5a054fd8Black mates.pgn
Dots Studio: Dots3-Note Preview (free)+150-1
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LiquidAI: LFM2.5-2.6B (free)
80/80move 40
1. e4
liquid/lfm-2.5-2.6b:free
1… Nf6
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2. Nf3
liquid/lfm-2.5-2.6b:free
2… Nxe4
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3. Bc4
liquid/lfm-2.5-2.6b:free
3… e6
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4. Bxe6
liquid/lfm-2.5-2.6b:free
4… dxe6
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5. Nc3
liquid/lfm-2.5-2.6b:free
5… Nxc3
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6. Nd4
liquid/lfm-2.5-2.6b:free
6… Nxd1
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7. Kf1
liquid/lfm-2.5-2.6b:free
7… Bc5
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8. Ke1
liquid/lfm-2.5-2.6b:free
8… Bxd4
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9. Rb1
liquid/lfm-2.5-2.6b:free
9… O-O
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10. Kxd1
liquid/lfm-2.5-2.6b:free
10… Bc3
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11. Ra1
liquid/lfm-2.5-2.6b:free
11… Qd4
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12. Rb1
liquid/lfm-2.5-2.6b:free
12… Bxb2
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13. Bxb2
liquid/lfm-2.5-2.6b:free
13… Qxd2+
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14. Kxd2
liquid/lfm-2.5-2.6b:free
14… Rd8+
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15. Kc1
liquid/lfm-2.5-2.6b:free
15… Nc6
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16. Ba1
liquid/lfm-2.5-2.6b:free
16… b5
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17. Bb2
liquid/lfm-2.5-2.6b:free
17… Rd3
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18. Bc3
liquid/lfm-2.5-2.6b:free
paused · AtlasCloud did not answer in time for dots-studio/dots-3-note-preview:free · retrying shortly
resumed · the wait is over: AtlasCloud did not answer in time for dots-studio/dots-3-note-preview:free
18… Rxc3
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19. Kb2
liquid/lfm-2.5-2.6b:free
19… Bd7
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20. Ra1
liquid/lfm-2.5-2.6b:free
20… Ne5
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21. Kc1
liquid/lfm-2.5-2.6b:free
21… Ra3
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22. Rb1
liquid/lfm-2.5-2.6b:free
22… Rxa2
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23. Kd1
liquid/lfm-2.5-2.6b:free
23… Rxc2
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24. Kxc2
liquid/lfm-2.5-2.6b:free
24… Nc4
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25. Ra1
liquid/lfm-2.5-2.6b:free
25… Bc6
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26. Kb1
liquid/lfm-2.5-2.6b:free
26… Be4+
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27. Ka2
liquid/lfm-2.5-2.6b:free
27… Bb1+
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28. Kxb1
liquid/lfm-2.5-2.6b:free
28… Rb8
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29. Ka2
liquid/lfm-2.5-2.6b:free
29… Rd8
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30. Kb1
liquid/lfm-2.5-2.6b:free
30… Rd2
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31. Kc1
liquid/lfm-2.5-2.6b:free
31… Rxf2
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32. Ra2
liquid/lfm-2.5-2.6b:free
32… Rxa2
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33. Kd1
liquid/lfm-2.5-2.6b:free
33… Rf2
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34. Kc1
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34… c5
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35. Kb1
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35… b4
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36. Re1
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36… b3
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37. Rxe6
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37… b2
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38. Ra6
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38… Nd2+
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39. Ka2
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39… b1=Q+
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40. Ka3
liquid/lfm-2.5-2.6b:free
40… Qb3#
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White's king is on a3, my queen on b1, knight on d2, rook on f2. I claimed Qb3# would be mate. Let me verify: Qb3+ — the queen goes to b3, defended by Nd2. King on a3: can it capture on b3? No, defended by Nd2. Escape squares from a3: a2 (covered by queen on b3), a4 (covered by queen on b3), b2 (covered by queen on b3), b4 (covered by queen on b3). Can White block? No, the check is from an adjacent square. Can White capture the queen? Only Kxb3, but it's defended. So it's mate. Let me verify with legal moves.

The legal-move list confirms **Qb3#** is checkmate — the queen on b3 is defended by Nd2, so the king can't capture, and all of a3's escape squares (a2, a4, b2, b4) are covered by the queen. **1...Qb3#** — checkmate and the game is won. Let me play it.

game over · checkmate · 0-1 — Black mates.