AtomicDB

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66.1M
positions
11.9M
practically solved
237.65T
engine nodes
1.8M
analyses
4,563
in queue
15
active workers
104
active cores
2.7M
nodes / sec
27.1
positions / min
83
proof number
3,835
disproof number
Root conquest: 0/20 first moves solved · 17.9% of tree positions solved · last 24h: 254,323 closures, 4.56T nodes searched
Proof health & closures by source
Proof health · median disproof number on the AND frontier: 81 over 196 open obligations, of which 32 (16.3%) 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 25.1m (median of 64) · measured at 2026-09-28 23:00 UTC
Closures by source, last 24h (254211 of 254227 labelled): USER 99.8% (253591) · FILL 0.0% (0) · AUTO 0.0% (0) · SOLVE 0.0% (0) · NONE 0.2% (620) · last 7d (1577989 of 1578085): USER 97.3% (1534773) · FILL 0.6% (8795) · AUTO 2.0% (32065) · SOLVE 0.0% (0) · NONE 0.1% (2356). 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
g1f3unsolved11002
g1h3unsolved7862
e2e3unsolved5053
d2d4unsolved4362
e2e4unsolved4172
b1c3unsolved1422
c2c3unsolved02
g2g3unsolved02
b2b4unsolved03
b1a3unsolved03
h2h3unsolved-1002
a2a3unsolved-1032
f2f3unsolved-1103
d2d3unsolved-1162
b2b3unsolved-1191
f2f4unsolved-3013
h2h4unsolved-5002
a2a4unsolved-5022
g2g4unsolved-6002
c2c4unsolved-7003

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
1BManBJ
31.2% of the fleet
1.42T10,613
2auranvesdranor
23.2% of the fleet
1.06T8,134
3randomchampgamer
12.8% of the fleet
583.31B4,730
4tenzink
12.3% of the fleet
561.86B3,354
5gannet
10.6% of the fleet
484.85B891
6uipio
7.0% of the fleet
317.54B1,518
7bricerichmond
1.7% of the fleet
77.47B107
8rhaxier
0.9% of the fleet
40.74B244
9soothdest
0.3% of the fleet
12.60B95
10RickEdinson
<0.1% of the fleet
1.79B15

and 1 more.

11 accounts · 4.56T nodes searched by the whole fleet.

All time

ContributorNodesAnalyses
1NitroColoraze
38.0% of the fleet
90.30T751,082
2tenzink
15.6% of the fleet
36.98T308,838
3BManBJ
11.9% of the fleet
28.22T194,903
4auranvesdranor
11.5% of the fleet
27.37T197,254
5JackIV
4.2% of the fleet
10.06T67,859
6randomchampgamer
4.1% of the fleet
9.80T71,699
7RickEdinson
2.7% of the fleet
6.50T43,085
8MoNiKaMaDnEsS
1.7% of the fleet
4.14T26,565
9NeoArcturus
1.7% of the fleet
4.09T16,758
10ijh
1.5% of the fleet
3.57T37,348

and 25 more.

35 accounts · 237.68T 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 21 proposals · see every proposal

Milestones