A queen occupying an uncontested square, free from enemy pressure, often in a position where it can launch or support a decisive attack.
SAE concept sae_13260 fires when a queen occupying an uncontested square, free from enemy pressure, often in a position where it can launch or support a decisive attack.. It appears in 305 of 9,950 Climbchess puzzles (3.1%), spanning ELO 640–2679 (median 1723).
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This page documents A queen occupying an uncontested square, free…, 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:
A queen occupying an uncontested square, free from enemy pressure, often in a position where it can launch or support a decisive attack.
This pattern fires in 305 of our 9,950 tagged puzzles. The puzzles where it appears span ELO 640 to 2679, with a median rating of 1723. That distribution tells you whether this is a beginner cue or a master-level subtlety.
Pattern statistics
| Concept ID | sae_13260 |
|---|---|
| Puzzles where it fires | 305 |
| Min ELO | 640 |
| Median ELO | 1723 |
| Max ELO | 2679 |
| Coverage | 3.07% 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 01cZp — ELO 640, themes: endgame, mate, mateIn1, side to move: White
- Puzzle 00beo_F — ELO 942, themes: kingsideAttack, mate, mateIn1, side to move: Black
- Puzzle znVh8 — ELO 1189, themes: advantage, defensiveMove, middlegame, side to move: Black
- Puzzle zzgyD — ELO 1355, themes: backRankMate, deflection, endgame, side to move: White
- Puzzle zzQdP_F — ELO 1494, themes: crushing, long, middlegame, side to move: White
- Puzzle zzuFU_F — ELO 1723, themes: advantage, middlegame, short, side to move: White
- Puzzle ztCvj_F — ELO 1911, themes: advantage, discoveredAttack, endgame, side to move: White
- Puzzle zyOsp — ELO 2111, themes: advantage, hangingPiece, middlegame, side to move: White
- Puzzle zsUAF_M — ELO 2358, themes: advancedPawn, exposedKing, long, side to move: Black
- Puzzle z4hov_M — ELO 2483, themes: advantage, long, middlegame, 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_13260?
A queen occupying an uncontested square, free from enemy pressure, often in a position where it can launch or support a decisive attack. 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 305 tagged puzzles (3.1% of the set), spanning Lichess ELO 640 to 2679 with a median of 1723.
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.