A queen safe from enemy attack but tactically active, typically threatening a decisive move against the opponent's king or a key square.
SAE concept sae_10647 fires when a queen safe from enemy attack but tactically active, typically threatening a decisive move against the opponent's king or a key square.. It appears in 569 of 9,950 Climbchess puzzles (5.7%), spanning ELO 610–2649 (median 1630).
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This page documents A queen safe from enemy attack but tactically…, 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 safe from enemy attack but tactically active, typically threatening a decisive move against the opponent's king or a key square.
This pattern fires in 569 of our 9,950 tagged puzzles. The puzzles where it appears span ELO 610 to 2649, with a median rating of 1630. That distribution tells you whether this is a beginner cue or a master-level subtlety.
Pattern statistics
| Concept ID | sae_10647 |
|---|---|
| Puzzles where it fires | 569 |
| Min ELO | 610 |
| Median ELO | 1630 |
| Max ELO | 2649 |
| Coverage | 5.72% 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 xRhy5 — ELO 610, themes: advantage, endgame, master, side to move: Black
- Puzzle 00ZN7 — ELO 884, themes: endgame, mate, mateIn2, side to move: White
- Puzzle 01vzt_F — ELO 1147, themes: advantage, middlegame, short, side to move: White
- Puzzle zz2pb_F — ELO 1383, themes: crushing, defensiveMove, endgame, side to move: White
- Puzzle yZEGz_F — ELO 1489, themes: anastasiaMate, attraction, endgame, side to move: White
- Puzzle zzMYU — ELO 1630, themes: mate, mateIn1, middlegame, side to move: White
- Puzzle zrYXT — ELO 1841, themes: advantage, endgame, exposedKing, side to move: Black
- Puzzle zzfWG — ELO 2058, themes: advantage, fork, middlegame, side to move: Black
- Puzzle zcNGW — ELO 2248, themes: advantage, kingsideAttack, long, side to move: White
- Puzzle zuz08 — ELO 2438, themes: crushing, defensiveMove, endgame, 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_10647?
A queen safe from enemy attack but tactically active, typically threatening a decisive move against the opponent's king or a key square. 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 569 tagged puzzles (5.7% of the set), spanning Lichess ELO 610 to 2649 with a median of 1630.
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.