White queen on a semi-open file or central square in a contested middlegame position, with active black counterplay.
SAE concept sae_9185 fires when white queen on a semi-open file or central square in a contested middlegame position, with active black counterplay.. It appears in 44 of 9,950 Climbchess puzzles (0.4%), spanning ELO 803–2310 (median 1331).
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This page documents White queen on a semi-open file or central…, one of 4,505 interpretable chess concepts extracted from Leela Chess Zero via sparse autoencoders. The full feature description from our SAE labelling pipeline reads:
White queen on a semi-open file or central square in a contested middlegame position, with active black counterplay.
This pattern fires in 44 of our 9,950 tagged puzzles. The puzzles where it appears span ELO 803 to 2310, with a median rating of 1331. That distribution tells you whether this is a beginner cue or a master-level subtlety.
Pattern statistics
| Concept ID | sae_9185 |
|---|---|
| Puzzles where it fires | 44 |
| Min ELO | 803 |
| Median ELO | 1331 |
| Max ELO | 2310 |
| Coverage | 0.44% of puzzle set |
Related concepts
The five concepts most often co-firing alongside this one (Jaccard similarity over the puzzle co-occurrence graph) are:
Example puzzles
Below are 10 puzzles spanning the rating distribution. Each links to its own page with full move list and related concepts.
- Puzzle zzVXe — ELO 803, themes: advantage, kingsideAttack, long, side to move: Black
- Puzzle wq1gR_F — ELO 861, themes: clearance, kingsideAttack, mate, side to move: White
- Puzzle zLYJ8_F — ELO 928, themes: crushing, endgame, fork, side to move: White
- Puzzle zbEBq — ELO 950, themes: master, mate, mateIn1, side to move: Black
- Puzzle ztVoU_M — ELO 1026, themes: kingsideAttack, mate, mateIn1, side to move: Black
- Puzzle 00moS — ELO 1331, themes: crushing, long, middlegame, side to move: Black
- Puzzle zwLzC_M — ELO 1356, themes: discoveredAttack, kingsideAttack, mate, side to move: Black
- Puzzle 00hAC — ELO 1491, themes: advantage, long, middlegame, side to move: Black
- Puzzle tjTIr_M — ELO 1918, themes: anastasiaMate, endgame, mate, side to move: Black
- Puzzle 6pNhW — ELO 2125, themes: anastasiaMate, kingsideAttack, long, side to move: Black
How to use this page
If you want to train this pattern, open the Climbchess trainer and filter for puzzles tagged with this concept. The trainer surfaces them at the right difficulty for your current rating, and tracks how often you spot the cue versus miss it. You can also browse the related concepts above to see neighbouring ideas in feature space.
Climbchess concepts are not heuristics written by a human author. Each one corresponds to a single direction in the residual stream of Leela Chess Zero that activates on a specific board feature, then was labelled by reading the top-activating positions. This makes the catalogue exhaustive (every Leela-detectable pattern is in here somewhere) and falsifiable (you can replay our extraction).
Frequently asked
What is SAE concept sae_9185?
White queen on a semi-open file or central square in a contested middlegame position, with active black counterplay. It is one of 4,505 interpretable features extracted from Leela Chess Zero's residual stream via sparse autoencoders, then labelled by reading the top-activating positions.
Where does this pattern appear?
In 44 tagged puzzles (0.4% of the set), spanning Lichess ELO 803 to 2310 with a median of 1331.
How do I train it?
Open the Climbchess trainer and filter for puzzles tagged with this concept. The trainer adapts difficulty using your live recognition profile and tracks how often you spot the cue versus miss it.
Is it free?
Yes. Climbchess is free forever, with no account, email, or signup required. You can delete your data at any time.