109.5M
positions
23.3M
practically solved
409.13T
engine nodes
3.0M
analyses
4,299
in queue
active workers
132
active cores
142.0M
nodes / sec
60.7
positions / min
118
proof number
4,004
disproof number
Root conquest: 0/20 first moves solved · 21.3% of tree positions solved · last 24h: 726,477 closures, 12.17T nodes searched
Proof health & closures by source
Proof health · median disproof number on the AND frontier: 69 over 195 open obligations, of which 36 (18.5%) sit at or below dn 2, one unanswered question from falling over · 0 open nodes on impossible numbers · positions a visitor asked for close in 1.7m (median of 25) · measured at 2026-11-03 11:00 UTC
Closures by source, last 24h (726418 of 726429 labelled): USER 100.0% (726231) · FILL 0.0% (0) · AUTO 0.0% (0) · SOLVE 0.0% (0) · NONE 0.0% (187) · last 7d (1855115 of 1855152): USER 99.2% (1840627) · FILL 0.5% (8982) · AUTO 0.3% (4856) · SOLVE 0.0% (0) · NONE 0.0% (650). Labelling started at deploy: closures older than that carry no source and are counted in none of the shares above.
Now analyzing all workers
- … Ke7 e4 h5 e5 Rh6 e6 Kf6 e7 Rh8 Rd4 Ke5 (User) · 128.0M nodes · bluebird
- 1. Nf3 d6 2. Ng5 f5 … Na6 11. b4 Bb7 12. g3 Be7 (User) · 128.0M nodes · BManBJ-Blake-atomicdb#0
- 1. Nf3 d6 2. Ng5 f5 … Na6 11. b4 Bb7 12. g3 Rh6 (User) · 128.0M nodes · BManBJ-Blake-atomicdb#1
- 1. Nf3 d6 2. Ng5 f5 … Na6 11. b4 Bb7 12. g3 Rh7 (User) · 128.0M nodes · BManBJ-Blake-atomicdb#2
- … f4 Ne3 Rf3 Bg4 Qe1 O-O Ne4 Na6 Be7 Kh8 Bd6 Ng2 Ng5 Nxf4 Be5 Qxe5 Qg3 g6 Qe5 Rf6 (User) · 128.0M nodes · evergreen
Explore
Keyboard move list
First moves
| move | state | eval | visits | |
|---|---|---|---|---|
| Nf3 | unsolved | 1243 | 2 | |
| Nh3 | unsolved | 749 | 2 | |
| d4 | unsolved | 443 | 2 | |
| e3 | unsolved | 437 | 3 | |
| e4 | unsolved | 400 | 2 | |
| Nc3 | unsolved | 154 | 2 | |
| Na3 | unsolved | 0 | 3 | |
| c3 | unsolved | 0 | 2 | |
| g3 | unsolved | 0 | 3 | |
| b4 | unsolved | -59 | 3 | |
| h3 | unsolved | -97 | 3 | |
| d3 | unsolved | -98 | 2 | |
| a3 | unsolved | -100 | 2 | |
| f3 | unsolved | -117 | 3 | |
| b3 | unsolved | -144 | 1 | |
| f4 | unsolved | -260 | 3 | |
| h4 | unsolved | -500 | 3 | |
| a4 | unsolved | -514 | 2 | |
| g4 | unsolved | -604 | 3 | |
| c4 | unsolved | -700 | 3 |
Contributors by engine nodes
Proposed campaigns
- Should be easiest proof for nf3 e51. Nf3 e5 2. e4proposed by quasa · 18 votes
- Pls nh4 is more solvable than c31. Nf3 f6 2. e4 e6 3. Nc3 c6 4. Nb5 cxb5 5. Bb5 Nc6 6. d4 g6 7. Nh4proposed by 67king · 6 votes
- Is Nh3 h6 e3 e6 Nc3 a draw?1. Nh3 e6 2. e3 h6 3. Nc3proposed by soothdest · 5 votes
- The weaker of the two f-pawn advances for 1. ...d61. Nf3 d6 2. Ng5 f5 3. Nf7 Qd7 4. e4proposed by MoNiKaMaDnEsS · 4 votes
- Refuting 1... d61. Nf3 d6 2. Nc3proposed by randomchampgamer · 3 votes
- Let's solve Qc8 in 2N Nh6 mainline and/or use it as a benchmark1. Nf3 f6 2. e4 e6 3. d4 c6 4. Nc3 Nh6 5. g4 Bb4 6. e5 fxe5 7. Ng5 d5 8. h4 e5 9. Qe2 Nxg4 10. f3 Bg4 11. Bh3 Qc8 12. Bh6proposed by soothdest · 3 votes
Milestones the latest solved positions