King actively navigating in an endgame where passed pawns create promotion threats on both flanks.
SAE concept sae_14176 fires when king actively navigating in an endgame where passed pawns create promotion threats on both flanks.. It appears in 124 of 9,950 Climbchess puzzles (1.2%), spanning ELO 614–2698 (median 1816).
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This page documents King actively navigating in an endgame where…, 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:
King actively navigating in an endgame where passed pawns create promotion threats on both flanks.
This pattern fires in 124 of our 9,950 tagged puzzles. The puzzles where it appears span ELO 614 to 2698, with a median rating of 1816. That distribution tells you whether this is a beginner cue or a master-level subtlety.
Pattern statistics
| Concept ID | sae_14176 |
|---|---|
| Puzzles where it fires | 124 |
| Min ELO | 614 |
| Median ELO | 1816 |
| Max ELO | 2698 |
| Coverage | 1.25% 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 zzNuy — ELO 614, themes: advancedPawn, crushing, endgame, side to move: White
- Puzzle zOaKh — ELO 721, themes: advancedPawn, crushing, endgame, side to move: White
- Puzzle zt9Jj_M — ELO 891, themes: advancedPawn, crushing, endgame, side to move: Black
- Puzzle zZUsP_M — ELO 1206, themes: advancedPawn, crushing, defensiveMove, side to move: White
- Puzzle zc5Ea — ELO 1616, themes: advancedPawn, crushing, endgame, side to move: Black
- Puzzle 01sMU_F — ELO 1816, themes: endgame, side to move: Black
- Puzzle zyv2u — ELO 1969, themes: advancedPawn, crushing, endgame, side to move: White
- Puzzle zYKJq — ELO 2135, themes: crushing, endgame, pawnEndgame, side to move: White
- Puzzle zzuyC_M — ELO 2203, themes: crushing, endgame, pawnEndgame, side to move: Black
- Puzzle zZ4ym_M — ELO 2445, themes: advancedPawn, crushing, endgame, 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_14176?
King actively navigating in an endgame where passed pawns create promotion threats on both flanks. 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 124 tagged puzzles (1.2% of the set), spanning Lichess ELO 614 to 2698 with a median of 1816.
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.