White king castled on g1 with nearby friendly pieces providing cover, in a position with no immediate black threats to the king.
SAE concept sae_316 fires when white king castled on g1 with nearby friendly pieces providing cover, in a position with no immediate black threats to the king.. It appears in 336 of 9,950 Climbchess puzzles (3.4%), spanning ELO 627–2691 (median 1383).
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This page documents White king castled on g1 with nearby friendly…, 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 king castled on g1 with nearby friendly pieces providing cover, in a position with no immediate black threats to the king.
This pattern fires in 336 of our 9,950 tagged puzzles. The puzzles where it appears span ELO 627 to 2691, with a median rating of 1383. That distribution tells you whether this is a beginner cue or a master-level subtlety.
Pattern statistics
| Concept ID | sae_316 |
|---|---|
| Puzzles where it fires | 336 |
| Min ELO | 627 |
| Median ELO | 1383 |
| Max ELO | 2691 |
| Coverage | 3.38% 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 zznMe — ELO 627, themes: crushing, kingsideAttack, master, side to move: White
- Puzzle znaIc_F — ELO 761, themes: crushing, discoveredAttack, middlegame, side to move: Black
- Puzzle sZhLw_F — ELO 879, themes: crushing, endgame, long, side to move: White
- Puzzle 00L84 — ELO 1107, themes: advancedPawn, crushing, endgame, side to move: White
- Puzzle 01q7V_F — ELO 1206, themes: advantage, capturingDefender, endgame, side to move: Black
- Puzzle zyQBm_F — ELO 1383, themes: advancedPawn, equality, hangingPiece, side to move: Black
- Puzzle 00y0m — ELO 1633, themes: advancedPawn, advantage, endgame, side to move: Black
- Puzzle zyPln — ELO 1873, themes: advantage, master, middlegame, side to move: Black
- Puzzle xACSw — ELO 2142, themes: doubleBishopMate, kingsideAttack, mate, side to move: White
- Puzzle zn503_F — ELO 2351, themes: discoveredCheck, doubleCheck, long, 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_316?
White king castled on g1 with nearby friendly pieces providing cover, in a position with no immediate black threats to the king. 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 336 tagged puzzles (3.4% of the set), spanning Lichess ELO 627 to 2691 with a median of 1383.
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.