Kingside or back-rank mating pattern where black has a rook or minor piece defending the king's position but mate is forced by white.
SAE concept sae_4694 fires when kingside or back-rank mating pattern where black has a rook or minor piece defending the king's position but mate is forced by white.. It appears in 19 of 9,950 Climbchess puzzles (0.2%), spanning ELO 783–2528 (median 1508).
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This page documents Kingside or back-rank mating pattern where black…, 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:
Kingside or back-rank mating pattern where black has a rook or minor piece defending the king's position but mate is forced by white.
This pattern fires in 19 of our 9,950 tagged puzzles. The puzzles where it appears span ELO 783 to 2528, with a median rating of 1508. That distribution tells you whether this is a beginner cue or a master-level subtlety.
Pattern statistics
| Concept ID | sae_4694 |
|---|---|
| Puzzles where it fires | 19 |
| Min ELO | 783 |
| Median ELO | 1508 |
| Max ELO | 2528 |
| Coverage | 0.19% 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 ykzv0 — ELO 783, themes: endgame, long, mate, side to move: White
- Puzzle ykzv0_F — ELO 783, themes: endgame, long, mate, side to move: Black
- Puzzle 00TTm_F — ELO 847, themes: mate, mateIn1, middlegame, side to move: White
- Puzzle vZU5O_F — ELO 1099, themes: doubleBishopMate, mate, mateIn1, side to move: Black
- Puzzle zW9yS — ELO 1508, themes: backRankMate, endgame, mate, side to move: White
- Puzzle zW9yS_M — ELO 1508, themes: backRankMate, endgame, mate, side to move: White
- Puzzle A0oGc_F — ELO 1826, themes: doubleBishopMate, mate, mateIn2, side to move: White
- Puzzle wsy3Z_M — ELO 1927, themes: backRankMate, endgame, long, side to move: White
- Puzzle zzur6_F — ELO 1948, themes: advantage, attraction, kingsideAttack, side to move: White
- Puzzle 9jRlE — ELO 2528, themes: backRankMate, crushing, middlegame, 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_4694?
Kingside or back-rank mating pattern where black has a rook or minor piece defending the king's position but mate is forced by white. 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 19 tagged puzzles (0.2% of the set), spanning Lichess ELO 783 to 2528 with a median of 1508.
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.