LiquidAI: LFM2.5-2.6B (free)1-0
Qwen: Qwen3.8 27B (free)
35/35
qwen/qwen3.8-27b:free
1. e4
liquid/lfm-2.5-2.6b:free
1… Nf6
qwen/qwen3.8-27b:free
2. Nf3
liquid/lfm-2.5-2.6b:free
2… Nc6
qwen/qwen3.8-27b:free
3. d4
liquid/lfm-2.5-2.6b:free
3… Nd5
qwen/qwen3.8-27b:free
4. exd5
liquid/lfm-2.5-2.6b:free
4… Na5
qwen/qwen3.8-27b:free
5. Be3
liquid/lfm-2.5-2.6b:free
5… Nc4
qwen/qwen3.8-27b:free
6. Bf4
liquid/lfm-2.5-2.6b:free
6… b5
qwen/qwen3.8-27b:free
7. Nc3
liquid/lfm-2.5-2.6b:free
7… Nb6
qwen/qwen3.8-27b:free
8. Nxb5
liquid/lfm-2.5-2.6b:free
8… Ba6
qwen/qwen3.8-27b:free
9. Nc3
liquid/lfm-2.5-2.6b:free
9… Nc4
qwen/qwen3.8-27b:free
10. Rb1
liquid/lfm-2.5-2.6b:free
10… Bb7
qwen/qwen3.8-27b:free
11. Bd2
liquid/lfm-2.5-2.6b:free
11… Nxd2
qwen/qwen3.8-27b:free
12. Qxd2
liquid/lfm-2.5-2.6b:free
12… Bxd5
qwen/qwen3.8-27b:free
13. Nxd5
liquid/lfm-2.5-2.6b:free
13… Qb8
qwen/qwen3.8-27b:free
14. Be2
liquid/lfm-2.5-2.6b:free
14… Qb3
qwen/qwen3.8-27b:free
15. O-O
liquid/lfm-2.5-2.6b:free
15… Qb6
qwen/qwen3.8-27b:free
16. Rfe1
liquid/lfm-2.5-2.6b:free
16… Qb4
qwen/qwen3.8-27b:free
17. Qxb4
liquid/lfm-2.5-2.6b:free
17… Rb8
qwen/qwen3.8-27b:free
Black's 18.Rb8 attacks my queen on b4 — but the b-file is completely open (b7, b6, b5 are empty), so I can simply capture the rook with check: 19.Qxb8+. Let me verify.
Black's 18...Rb8 attacks my queen — but the b-file is open (b5, b6, b7 all empty), so I simply capture the rook with check: 19.Qxb8+. Nothing can recapture, and the king must move. This leaves me up a queen, rook, and knight for nothing.
18. Qxb8#
game over · checkmate · 1-0 — White mates.