A black minor piece is under pressure from white pieces, often leading to a discovered attack or forced capture that wins material.
SAE concept sae_6737 fires when a black minor piece is under pressure from white pieces, often leading to a discovered attack or forced capture that wins material.. It appears in 51 of 9,950 Climbchess puzzles (0.5%), spanning ELO 731–2551 (median 1324).
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This page documents A black minor piece is under pressure from white…, 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 black minor piece is under pressure from white pieces, often leading to a discovered attack or forced capture that wins material.
This pattern fires in 51 of our 9,950 tagged puzzles. The puzzles where it appears span ELO 731 to 2551, with a median rating of 1324. That distribution tells you whether this is a beginner cue or a master-level subtlety.
Pattern statistics
| Concept ID | sae_6737 |
|---|---|
| Puzzles where it fires | 51 |
| Min ELO | 731 |
| Median ELO | 1324 |
| Max ELO | 2551 |
| Coverage | 0.51% 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 yoGiT — ELO 731, themes: clearance, crushing, endgame, side to move: Black
- Puzzle zhzVl_F — ELO 878, themes: crushing, defensiveMove, endgame, side to move: White
- Puzzle 00Yfr — ELO 985, themes: endgame, mate, mateIn2, side to move: Black
- Puzzle 01LPz_M — ELO 1059, themes: advantage, endgame, fork, side to move: White
- Puzzle zxCPw_F — ELO 1228, themes: advantage, discoveredAttack, kingsideAttack, side to move: White
- Puzzle zzw8q_M — ELO 1324, themes: crushing, endgame, master, side to move: White
- Puzzle zu3yM_M — ELO 1743, themes: advancedPawn, advantage, endgame, side to move: White
- Puzzle z5aBt_F — ELO 2123, themes: discoveredAttack, discoveredCheck, intermezzo, side to move: White
- Puzzle zlzhC_F — ELO 2154, themes: endgame, long, mate, side to move: Black
- Puzzle zqnD9 — ELO 2362, themes: discoveredAttack, discoveredCheck, kingsideAttack, 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_6737?
A black minor piece is under pressure from white pieces, often leading to a discovered attack or forced capture that wins material. 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 51 tagged puzzles (0.5% of the set), spanning Lichess ELO 731 to 2551 with a median of 1324.
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.