White queen on d1 or e2 in an uncastled opening position, shielded by friendly pieces.
SAE concept sae_11596 fires when white queen on d1 or e2 in an uncastled opening position, shielded by friendly pieces.. It appears in 15 of 9,950 Climbchess puzzles (0.2%), spanning ELO 610–1668 (median 1376).
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This page documents White queen on d1 or e2 in an uncastled opening…, 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 queen on d1 or e2 in an uncastled opening position, shielded by friendly pieces.
This pattern fires in 15 of our 9,950 tagged puzzles. The puzzles where it appears span ELO 610 to 1668, with a median rating of 1376. That distribution tells you whether this is a beginner cue or a master-level subtlety.
Pattern statistics
| Concept ID | sae_11596 |
|---|---|
| Puzzles where it fires | 15 |
| Min ELO | 610 |
| Median ELO | 1376 |
| Max ELO | 1668 |
| Coverage | 0.15% 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 zXEls — ELO 610, themes: mate, mateIn1, oneMove, side to move: White
- Puzzle zXEls_F — ELO 610, themes: mate, mateIn1, oneMove, side to move: Black
- Puzzle zvar7_F — ELO 793, themes: deflection, kingsideAttack, mate, side to move: Black
- Puzzle zxP23 — ELO 1346, themes: crushing, middlegame, short, side to move: White
- Puzzle zxP23_M — ELO 1346, themes: crushing, middlegame, short, side to move: White
- Puzzle zHHfX — ELO 1376, themes: mate, mateIn1, oneMove, side to move: Black
- Puzzle BTaGA — ELO 1591, themes: doubleBishopMate, mate, mateIn2, side to move: Black
- Puzzle BTaGA_F — ELO 1591, themes: doubleBishopMate, mate, mateIn2, side to move: White
- Puzzle zuczE — ELO 1668, themes: crushing, deflection, kingsideAttack, side to move: Black
- Puzzle zuczE_F — ELO 1668, themes: crushing, deflection, 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_11596?
White queen on d1 or e2 in an uncastled opening position, shielded by friendly pieces. 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 15 tagged puzzles (0.2% of the set), spanning Lichess ELO 610 to 1668 with a median of 1376.
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.