Qwen3.5 9B
Alibaba · open weights · released 2026-02-23 · route qwen3.5:9b · Model profile
Opening gap: +0 (95%: -813 to +813). The interval includes zero, so we can't yet say whether it performs differently across the variants.
Standard
- Rating
- 33295%: -243 to 907
- Record
- 0 won, 0 drawn, 3 lost of 3
- Accuracy (open positions)
- 81.6
- Accuracy (all moves)
- 81.6
- Average centipawn loss
- 57
- Blunders / mistakes / inaccuracies per 100 moves
- 0.0 / 33.3 / 0.0
- Matched Stockfish's first choice
- 0%
- In Stockfish's top three
- 44%
- Legal on the first try
- 50.0%
- Illegal / invalid
- 12 of 21 answers
- Forfeits
- 3
- Adjudicated games
- 0
- API-equivalent cost per game
- n/a
- API-equivalent cost per move
- n/a
- Seconds per move
- 98.2
- Model minutes per game
- 6.5
- Tokens per move (in / out)
- 1,116 / 1,158
- Reasoning tokens per move
- n/a
- Aborted on our side (not counted)
- 0
By phase
| Phase | Moves | Accuracy | Centipawn loss | Blunders /100 | Engine match |
|---|---|---|---|---|---|
| Opening | 9 | 81.6 | 57 | 0.0 | 0% |
| Middlegame | 0 | n/a | n/a | n/a | n/a |
| Endgame | 0 | n/a | n/a | n/a | n/a |
Chess960
- Rating
- 33295%: -243 to 907
- Record
- 0 won, 0 drawn, 3 lost of 3
- Accuracy (open positions)
- 83.5
- Accuracy (all moves)
- 83.5
- Average centipawn loss
- 49
- Blunders / mistakes / inaccuracies per 100 moves
- 0.0 / 33.3 / 0.0
- Matched Stockfish's first choice
- 0%
- In Stockfish's top three
- 0%
- Legal on the first try
- 0.0%
- Illegal / invalid
- 13 of 16 answers
- Forfeits
- 3
- Adjudicated games
- 0
- API-equivalent cost per game
- n/a
- API-equivalent cost per move
- n/a
- Seconds per move
- 264.2
- Model minutes per game
- 8.8
- Tokens per move (in / out)
- 1,894 / 2,260
- Reasoning tokens per move
- n/a
- Aborted on our side (not counted)
- 0
By phase
| Phase | Moves | Accuracy | Centipawn loss | Blunders /100 | Engine match |
|---|---|---|---|---|---|
| Opening | 3 | 83.5 | 49 | 0.0 | 0% |
| Middlegame | 0 | n/a | n/a | n/a | n/a |
| Endgame | 0 | n/a | n/a | n/a | n/a |
Games
Standard as whiteLost vs Skill 0, 50% random moves10 plies · forfeit: no legal move · localChess960 as whiteLost vs Skill 0, 50% random moves4 plies · forfeit: no legal move · localStandard as blackLost vs Skill 0, 10% random moves5 plies · forfeit: no legal move · localChess960 as blackLost vs Skill 0, 10% random moves1 plies · forfeit: no legal move · localStandard as whiteLost vs Skill 0, 10% random moves4 plies · forfeit: no legal move · localChess960 as whiteLost vs Skill 0, 10% random moves2 plies · forfeit: no legal move · local