White attacks a black bishop on an open square with a white bishop.
SAE concept sae_341 fires when white attacks a black bishop on an open square with a white bishop.. It appears in 77 of 9,950 Climbchess puzzles (0.8%), spanning ELO 831–2536 (median 1809).
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This page documents White attacks a black bishop on an open square…, 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:
White attacks a black bishop on an open square with a white bishop.
This pattern fires in 77 of our 9,950 tagged puzzles. The puzzles where it appears span ELO 831 to 2536, with a median rating of 1809. That distribution tells you whether this is a beginner cue or a master-level subtlety.
Pattern statistics
| Concept ID | sae_341 |
|---|---|
| Puzzles where it fires | 77 |
| Min ELO | 831 |
| Median ELO | 1809 |
| Max ELO | 2536 |
| Coverage | 0.77% 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 01QLj — ELO 831, themes: mate, mateIn1, middlegame, side to move: White
- Puzzle 00Yfi — ELO 948, themes: endgame, mate, mateIn1, side to move: White
- Puzzle zzuAh_M — ELO 1044, themes: advantage, endgame, short, side to move: Black
- Puzzle zzO1x — ELO 1294, themes: advantage, middlegame, short, side to move: Black
- Puzzle zykc0_F — ELO 1669, themes: advantage, master, middlegame, side to move: Black
- Puzzle zWCP1 — ELO 1809, themes: advantage, deflection, long, side to move: White
- Puzzle xx9Nm_M — ELO 1835, themes: discoveredAttack, discoveredCheck, kingsideAttack, side to move: White
- Puzzle 3iMYv — ELO 1936, themes: discoveredAttack, discoveredCheck, doubleBishopMate, side to move: Black
- Puzzle zkkGx — ELO 2090, themes: advantage, discoveredAttack, discoveredCheck, side to move: White
- Puzzle x7fdm — ELO 2470, themes: crushing, intermezzo, 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_341?
White attacks a black bishop on an open square with a white bishop. 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 77 tagged puzzles (0.8% of the set), spanning Lichess ELO 831 to 2536 with a median of 1809.
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.