A minor or major piece with an imbalanced attacker-to-defender ratio, indicating a potential capture or tactical target.
SAE concept sae_33170 fires when a minor or major piece with an imbalanced attacker-to-defender ratio, indicating a potential capture or tactical target.. It appears in 20 of 9,950 Climbchess puzzles (0.2%), spanning ELO 710–2462 (median 1202).
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This page documents A minor or major piece with an imbalanced…, 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 minor or major piece with an imbalanced attacker-to-defender ratio, indicating a potential capture or tactical target.
This pattern fires in 20 of our 9,950 tagged puzzles. The puzzles where it appears span ELO 710 to 2462, with a median rating of 1202. That distribution tells you whether this is a beginner cue or a master-level subtlety.
Pattern statistics
| Concept ID | sae_33170 |
|---|---|
| Puzzles where it fires | 20 |
| Min ELO | 710 |
| Median ELO | 1202 |
| Max ELO | 2462 |
| Coverage | 0.20% 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 zzIaB — ELO 710, themes: backRankMate, endgame, mate, side to move: Black
- Puzzle zxQE5 — ELO 758, themes: endgame, hangingPiece, mate, side to move: Black
- Puzzle zxQE5_M — ELO 758, themes: endgame, hangingPiece, mate, side to move: Black
- Puzzle ug1j3_F — ELO 885, themes: crushing, endgame, master, side to move: White
- Puzzle zv1cI — ELO 1202, themes: crushing, endgame, hangingPiece, side to move: Black
- Puzzle zv1cI_M — ELO 1202, themes: crushing, endgame, hangingPiece, side to move: Black
- Puzzle zrscr_F — ELO 1707, themes: crushing, defensiveMove, endgame, side to move: Black
- Puzzle yqA7A — ELO 2417, themes: crushing, endgame, hangingPiece, side to move: White
- Puzzle yqA7A_M — ELO 2417, themes: crushing, endgame, hangingPiece, side to move: White
- Puzzle ze9kl_F — ELO 2462, themes: crushing, defensiveMove, endgame, 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_33170?
A minor or major piece with an imbalanced attacker-to-defender ratio, indicating a potential capture or tactical target. 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 20 tagged puzzles (0.2% of the set), spanning Lichess ELO 710 to 2462 with a median of 1202.
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.