An undeveloped or passive black bishop on the 8th rank (typically c8), often caught in a cramped position while white launches a kingside or central attack.
SAE concept sae_3344 fires when an undeveloped or passive black bishop on the 8th rank (typically c8), often caught in a cramped position while white launches a kingside or central attack.. It appears in 23 of 9,950 Climbchess puzzles (0.2%), spanning ELO 840–2652 (median 1925).
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This page documents An undeveloped or passive black bishop on 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:
An undeveloped or passive black bishop on the 8th rank (typically c8), often caught in a cramped position while white launches a kingside or central attack.
This pattern fires in 23 of our 9,950 tagged puzzles. The puzzles where it appears span ELO 840 to 2652, with a median rating of 1925. That distribution tells you whether this is a beginner cue or a master-level subtlety.
Pattern statistics
| Concept ID | sae_3344 |
|---|---|
| Puzzles where it fires | 23 |
| Min ELO | 840 |
| Median ELO | 1925 |
| Max ELO | 2652 |
| Coverage | 0.23% 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 zyOFT — ELO 840, themes: mate, mateIn1, middlegame, side to move: White
- Puzzle zyOFT_M — ELO 840, themes: mate, mateIn1, middlegame, side to move: White
- Puzzle vT5y8_F — ELO 871, themes: hookMate, mate, mateIn1, side to move: White
- Puzzle zz3k8 — ELO 1161, themes: fork, mate, mateIn2, side to move: Black
- Puzzle yOPwT_F — ELO 1207, themes: anastasiaMate, attraction, mate, side to move: White
- Puzzle 01B8h — ELO 1925, themes: advantage, long, middlegame, side to move: Black
- Puzzle ZAN8y — ELO 2106, themes: doubleBishopMate, mate, mateIn4, side to move: Black
- Puzzle zEB45_M — ELO 2194, themes: mate, mateIn2, middlegame, side to move: Black
- Puzzle 0254M — ELO 2409, themes: advancedPawn, crushing, long, side to move: Black
- Puzzle deUwG — ELO 2652, themes: backRankMate, clearance, mate, 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_3344?
An undeveloped or passive black bishop on the 8th rank (typically c8), often caught in a cramped position while white launches a kingside or central 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 23 tagged puzzles (0.2% of the set), spanning Lichess ELO 840 to 2652 with a median of 1925.
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.