Rook operating on an open file or rank as the key piece in a mating attack or decisive combinational sequence, including arabianMate and x-ray attack patterns.
SAE concept sae_9371 fires when rook operating on an open file or rank as the key piece in a mating attack or decisive combinational sequence, including arabianMate and x-ray attack patterns.. It appears in 1,069 of 9,950 Climbchess puzzles (10.7%), spanning ELO 610–2672 (median 1370).
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This page documents Rook operating on an open file or rank as the…, 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:
Rook operating on an open file or rank as the key piece in a mating attack or decisive combinational sequence, including arabianMate and x-ray attack patterns.
This pattern fires in 1,069 of our 9,950 tagged puzzles. The puzzles where it appears span ELO 610 to 2672, with a median rating of 1370. That distribution tells you whether this is a beginner cue or a master-level subtlety.
Pattern statistics
| Concept ID | sae_9371 |
|---|---|
| Puzzles where it fires | 1,069 |
| Min ELO | 610 |
| Median ELO | 1370 |
| Max ELO | 2672 |
| Coverage | 10.74% 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 y9L7e — ELO 796, themes: deflection, endgame, mate, side to move: White
- Puzzle yzM5l_F — ELO 882, themes: endgame, exposedKing, long, side to move: Black
- Puzzle 01kih_F — ELO 1051, themes: advantage, deflection, endgame, side to move: White
- Puzzle 02AKn — ELO 1189, themes: endgame, master, mate, side to move: White
- Puzzle 01B8l_M — ELO 1370, themes: advantage, endgame, short, side to move: Black
- Puzzle 01wIv_M — ELO 1623, themes: endgame, mate, mateIn2, side to move: White
- Puzzle znLDK_F — ELO 1838, themes: crushing, endgame, exposedKing, side to move: White
- Puzzle zhEPi_F — ELO 2101, themes: clearance, crushing, endgame, side to move: Black
- Puzzle zgaRd — ELO 2329, themes: advancedPawn, crushing, defensiveMove, side to move: White
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_9371?
Rook operating on an open file or rank as the key piece in a mating attack or decisive combinational sequence, including arabianMate and x-ray attack patterns. 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 1,069 tagged puzzles (10.7% of the set), spanning Lichess ELO 610 to 2672 with a median of 1370.
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.