White's knight is attacked by one black piece and defended by at least one white piece, with white having more attackers than black.
SAE concept sae_17167 fires when white's knight is attacked by one black piece and defended by at least one white piece, with white having more attackers than black.. It appears in 117 of 9,950 Climbchess puzzles (1.2%), spanning ELO 658–2682 (median 1732).
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This page documents White's knight is attacked by one black piece…, 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's knight is attacked by one black piece and defended by at least one white piece, with white having more attackers than black.
This pattern fires in 117 of our 9,950 tagged puzzles. The puzzles where it appears span ELO 658 to 2682, with a median rating of 1732. That distribution tells you whether this is a beginner cue or a master-level subtlety.
Pattern statistics
| Concept ID | sae_17167 |
|---|---|
| Puzzles where it fires | 117 |
| Min ELO | 658 |
| Median ELO | 1732 |
| Max ELO | 2682 |
| Coverage | 1.18% 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 zvNYI — ELO 658, themes: crushing, endgame, fork, side to move: White
- Puzzle zvmyn_M — ELO 861, themes: advantage, middlegame, short, side to move: Black
- Puzzle zzNF9_F — ELO 976, themes: endgame, mate, mateIn2, side to move: White
- Puzzle 024qM_F — ELO 1111, themes: crushing, discoveredAttack, middlegame, side to move: Black
- Puzzle zw6du — ELO 1557, themes: crushing, hangingPiece, middlegame, side to move: Black
- Puzzle zn1Wz — ELO 1732, themes: arabianMate, long, mate, side to move: White
- Puzzle fmKhm_F — ELO 1841, themes: arabianMate, discoveredAttack, discoveredCheck, side to move: Black
- Puzzle znPjG — ELO 1981, themes: advancedPawn, attraction, crushing, side to move: White
- Puzzle zyOsp_F — ELO 2111, themes: advantage, hangingPiece, middlegame, side to move: Black
- Puzzle rstax_M — ELO 2449, themes: discoveredAttack, discoveredCheck, 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_17167?
White's knight is attacked by one black piece and defended by at least one white piece, with white having more attackers than black. 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 117 tagged puzzles (1.2% of the set), spanning Lichess ELO 658 to 2682 with a median of 1732.
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.