Contested rank penetration by White's queen or rook with Black's pieces contesting the target square.
SAE concept sae_22944 fires when contested rank penetration by White's queen or rook with Black's pieces contesting the target square.. It appears in 33 of 9,950 Climbchess puzzles (0.3%), spanning ELO 674–2462 (median 1825).
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This page documents Contested rank penetration by White's queen or…, 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:
Contested rank penetration by White's queen or rook with Black's pieces contesting the target square.
This pattern fires in 33 of our 9,950 tagged puzzles. The puzzles where it appears span ELO 674 to 2462, with a median rating of 1825. That distribution tells you whether this is a beginner cue or a master-level subtlety.
Pattern statistics
| Concept ID | sae_22944 |
|---|---|
| Puzzles where it fires | 33 |
| Min ELO | 674 |
| Median ELO | 1825 |
| Max ELO | 2462 |
| Coverage | 0.33% 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 zaid0 — ELO 674, themes: endgame, mate, mateIn2, side to move: Black
- Puzzle tHPOb — ELO 919, themes: doubleBishopMate, mate, mateIn2, side to move: Black
- Puzzle zzOxo — ELO 1267, themes: kingsideAttack, mate, mateIn2, side to move: White
- Puzzle g2Yj1 — ELO 1473, themes: doubleBishopMate, mate, mateIn2, side to move: Black
- Puzzle zzrCr_M — ELO 1510, themes: crushing, discoveredAttack, discoveredCheck, side to move: Black
- Puzzle zz09e_F — ELO 1825, themes: mate, mateIn1, middlegame, side to move: Black
- Puzzle zxPfJ_F — ELO 1993, themes: crushing, discoveredAttack, discoveredCheck, side to move: White
- Puzzle zjRlV_M — ELO 2198, themes: advantage, clearance, endgame, side to move: Black
- Puzzle ARrdK_M — ELO 2268, themes: advancedPawn, anastasiaMate, deflection, side to move: Black
- Puzzle JnsRf_M — ELO 2298, themes: doubleBishopMate, kingsideAttack, mate, 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_22944?
Contested rank penetration by White's queen or rook with Black's pieces contesting the target 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 33 tagged puzzles (0.3% of the set), spanning Lichess ELO 674 to 2462 with a median of 1825.
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.