Positions featuring a queen with tactical potential, often in endgames with a discovered attack or fork available.
SAE concept sae_20683 fires when positions featuring a queen with tactical potential, often in endgames with a discovered attack or fork available.. It appears in 15 of 9,950 Climbchess puzzles (0.2%), spanning ELO 639–1752 (median 992).
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This page documents Positions featuring a queen with tactical…, 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:
Positions featuring a queen with tactical potential, often in endgames with a discovered attack or fork available.
This pattern fires in 15 of our 9,950 tagged puzzles. The puzzles where it appears span ELO 639 to 1752, with a median rating of 992. That distribution tells you whether this is a beginner cue or a master-level subtlety.
Pattern statistics
| Concept ID | sae_20683 |
|---|---|
| Puzzles where it fires | 15 |
| Min ELO | 639 |
| Median ELO | 992 |
| Max ELO | 1752 |
| 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 zy3cc — ELO 639, themes: advantage, discoveredAttack, endgame, side to move: Black
- Puzzle zy3cc_F — ELO 639, themes: advantage, discoveredAttack, endgame, side to move: White
- Puzzle znUgd — ELO 859, themes: crushing, discoveredAttack, kingsideAttack, side to move: White
- Puzzle znUgd_F — ELO 859, themes: crushing, discoveredAttack, kingsideAttack, side to move: Black
- Puzzle 00I8g — ELO 992, themes: crushing, endgame, short, side to move: White
- Puzzle 00I8g_F — ELO 992, themes: crushing, endgame, short, side to move: Black
- Puzzle zyHGY — ELO 1377, themes: crushing, middlegame, pin, side to move: Black
- Puzzle zyHGY_F — ELO 1377, themes: crushing, middlegame, pin, side to move: White
- Puzzle 01uGJ — ELO 1752, themes: advantage, endgame, short, side to move: Black
- Puzzle 01uGJ_F — ELO 1752, themes: advantage, endgame, short, 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_20683?
Positions featuring a queen with tactical potential, often in endgames with a discovered attack or fork available. 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 639 to 1752 with a median of 992.
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.