Black rook or queen exerting undefended pressure along the first rank, typically as a precursor to back-rank or corridor mate threats.
SAE concept sae_32703 fires when black rook or queen exerting undefended pressure along the first rank, typically as a precursor to back-rank or corridor mate threats.. It appears in 36 of 9,950 Climbchess puzzles (0.4%), spanning ELO 808–2572 (median 1120).
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This page documents Black rook or queen exerting undefended pressure…, 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:
Black rook or queen exerting undefended pressure along the first rank, typically as a precursor to back-rank or corridor mate threats.
This pattern fires in 36 of our 9,950 tagged puzzles. The puzzles where it appears span ELO 808 to 2572, with a median rating of 1120. That distribution tells you whether this is a beginner cue or a master-level subtlety.
Pattern statistics
| Concept ID | sae_32703 |
|---|---|
| Puzzles where it fires | 36 |
| Min ELO | 808 |
| Median ELO | 1120 |
| Max ELO | 2572 |
| Coverage | 0.36% 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 zbvaV_M — ELO 808, themes: endgame, hookMate, mate, side to move: Black
- Puzzle zzo7m_M — ELO 808, themes: advantage, endgame, fork, side to move: Black
- Puzzle zy4u4_M — ELO 854, themes: advantage, endgame, fork, side to move: White
- Puzzle yELhy_M — ELO 875, themes: crushing, defensiveMove, endgame, side to move: Black
- Puzzle xXuZN — ELO 991, themes: endgame, hookMate, mate, side to move: Black
- Puzzle zQH4h_F — ELO 1120, themes: arabianMate, endgame, mate, side to move: White
- Puzzle zrikO_M — ELO 1151, themes: crushing, endgame, master, side to move: Black
- Puzzle weJMe_M — ELO 1490, themes: endgame, epauletteMate, hookMate, side to move: White
- Puzzle zpSea_F — ELO 1868, themes: advantage, endgame, interference, side to move: White
- Puzzle zH5Jv_M — ELO 2491, themes: endgame, long, mate, 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_32703?
Black rook or queen exerting undefended pressure along the first rank, typically as a precursor to back-rank or corridor mate threats. 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 36 tagged puzzles (0.4% of the set), spanning Lichess ELO 808 to 2572 with a median of 1120.
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.