AtomicDB

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101.7M
positions
21.4M
practically solved
371.25T
engine nodes
2.8M
analyses
499
in queue
6
active workers
36
active cores
33.9M
nodes / sec
13.2
positions / min
107
proof number
4,824
disproof number
Root conquest: 0/20 first moves solved · 21.0% of tree positions solved · last 24h: 128,773 closures, 4.74T nodes searched
Proof health & closures by source
Proof health · median disproof number on the AND frontier: 71 over 200 open obligations, of which 36 (18.0%) 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 2.2h (median of 4) · measured at 2026-10-27 18:00 UTC
Closures by source, last 24h (128773 of 128773 labelled): USER 91.0% (117136) · FILL 1.1% (1378) · AUTO 7.9% (10213) · SOLVE 0.0% (0) · NONE 0.0% (46) · last 7d (3618295 of 3618295): USER 99.2% (3590791) · FILL 0.2% (8694) · AUTO 0.5% (18342) · SOLVE 0.0% (0) · NONE 0.0% (468). Labelling started at deploy: closures older than that carry no source and are counted in none of the shares above.

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Keyboard move list

First moves from the starting position

movestateevalvisits
g1f3unsolved12002
g1h3unsolved8202
e2e3unsolved4693
d2d4unsolved4052
e2e4unsolved4012
b1c3unsolved1382
b1a3unsolved03
c2c3unsolved02
g2g3unsolved02
b2b4unsolved-593
h2h3unsolved-972
d2d3unsolved-982
a2a3unsolved-1002
f2f3unsolved-1173
b2b3unsolved-1441
f2f4unsolved-2603
h2h4unsolved-5002
a2a4unsolved-5142
g2g4unsolved-6042
c2c4unsolved-7003

Best and worst values over time, and the main line

Contributors by engine nodes

Every position in this tree was searched by somebody's machine. Ties share a place, and the share is measured against everything the whole fleet searched in that window.

Last 24 hours

ContributorNodesAnalyses
1Torom
48.6% of the fleet
2.31T15,374
2BManBJ
36.7% of the fleet
1.74T10,563
3RickEdinson
10.3% of the fleet
490.76B2,862
4MoNiKaMaDnEsS
4.3% of the fleet
204.31B1,322

4 accounts · 4.74T nodes searched by the whole fleet.

All time

ContributorNodesAnalyses
1NitroColoraze
24.3% of the fleet
90.30T751,082
2BManBJ
19.3% of the fleet
71.74T503,697
3Torom
12.5% of the fleet
46.50T337,663
4tenzink
11.5% of the fleet
42.83T349,427
5auranvesdranor
8.5% of the fleet
31.40T228,002
6randomchampgamer
5.3% of the fleet
19.85T140,897
7RickEdinson
5.2% of the fleet
19.26T126,767
8MoNiKaMaDnEsS
3.1% of the fleet
11.40T78,684
9JackIV
2.7% of the fleet
10.06T67,859
10gannet
1.9% of the fleet
7.24T46,848

and 25 more.

35 accounts · 371.27T nodes searched by the whole fleet.

Proposed campaigns

Anyone can put a line up and vote for it. The site owner decides which one the solver actually runs.

Showing the 6 most voted of 23 proposals · see every proposal

Milestones