White attacks a black piece on the 7th or 8th rank, with at least one white attacker being a rook or queen.
SAE concept sae_969 fires when white attacks a black piece on the 7th or 8th rank, with at least one white attacker being a rook or queen.. It appears in 10 of 9,950 Climbchess puzzles (0.1%), spanning ELO 964–2152 (median 2109).
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This page documents White attacks a black piece on the 7th or 8th…, 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 attacks a black piece on the 7th or 8th rank, with at least one white attacker being a rook or queen.
This pattern fires in 10 of our 9,950 tagged puzzles. The puzzles where it appears span ELO 964 to 2152, with a median rating of 2109. That distribution tells you whether this is a beginner cue or a master-level subtlety.
Pattern statistics
| Concept ID | sae_969 |
|---|---|
| Puzzles where it fires | 10 |
| Min ELO | 964 |
| Median ELO | 2109 |
| Max ELO | 2152 |
| Coverage | 0.10% 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 zZf24 — ELO 964, themes: arabianMate, mate, mateIn2, side to move: Black
- Puzzle zZf24_F — ELO 964, themes: arabianMate, mate, mateIn2, side to move: White
- Puzzle zZf24_M — ELO 964, themes: arabianMate, mate, mateIn2, side to move: Black
- Puzzle zk41z — ELO 1574, themes: attraction, backRankMate, endgame, side to move: Black
- Puzzle zk41z_F — ELO 1574, themes: attraction, backRankMate, endgame, side to move: White
- Puzzle 01tgp — ELO 2109, themes: crushing, discoveredAttack, long, side to move: Black
- Puzzle 01tgp_F — ELO 2109, themes: crushing, discoveredAttack, long, side to move: White
- Puzzle 01tgp_M — ELO 2109, themes: crushing, discoveredAttack, long, side to move: Black
- Puzzle uIRGT — ELO 2152, themes: arabianMate, mate, mateIn4, side to move: Black
- Puzzle uIRGT_F — ELO 2152, themes: arabianMate, mate, mateIn4, 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_969?
White attacks a black piece on the 7th or 8th rank, with at least one white attacker being a rook or queen. 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 10 tagged puzzles (0.1% of the set), spanning Lichess ELO 964 to 2152 with a median of 2109.
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.