AtomicDB

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71.7M
positions
13.2M
practically solved
257.43T
engine nodes
2.0M
analyses
7,106
in queue
11
active workers
72
active cores
18.2M
nodes / sec
23.4
positions / min
82
proof number
3,797
disproof number
Root conquest: 0/20 first moves solved · 18.4% of tree positions solved · last 24h: 491,685 closures, 6.09T nodes searched
Proof health & closures by source
Proof health · median disproof number on the AND frontier: 80 over 199 open obligations, of which 33 (16.6%) 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 3.7m (median of 107) · measured at 2026-10-01 22:00 UTC
Closures by source, last 24h (491557 of 491557 labelled): USER 99.8% (490727) · FILL 0.0% (0) · AUTO 0.0% (0) · SOLVE 0.0% (0) · NONE 0.2% (830) · last 7d (2840799 of 2840927): USER 98.4% (2796328) · FILL 0.3% (8795) · AUTO 1.1% (32065) · SOLVE 0.0% (0) · NONE 0.1% (3611). 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
g1f3unsolved11012
g1h3unsolved8202
e2e3unsolved4613
d2d4unsolved4372
e2e4unsolved3992
b1c3unsolved1312
c2c3unsolved02
g2g3unsolved02
b2b4unsolved03
b1a3unsolved03
h2h3unsolved-972
d2d3unsolved-982
f2f3unsolved-1173
a2a3unsolved-1272
b2b3unsolved-1441
f2f4unsolved-3053
h2h4unsolved-5002
a2a4unsolved-5142
g2g4unsolved-6022
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
24.2% of the fleet
1.47T11,574
2gannet
20.1% of the fleet
1.22T9,422
3auranvesdranor
17.1% of the fleet
1.04T7,921
4tenzink
11.0% of the fleet
672.09B4,917
5randomchampgamer
10.2% of the fleet
621.51B4,842
6MoNiKaMaDnEsS
7.9% of the fleet
479.08B3,697
7RickEdinson
7.5% of the fleet
458.19B3,335
8quasa
2.0% of the fleet
120.64B937

8 accounts · 6.09T nodes searched by the whole fleet.

All time

ContributorNodesAnalyses
1NitroColoraze
35.1% of the fleet
90.30T751,082
2tenzink
15.0% of the fleet
38.75T321,422
3BManBJ
12.6% of the fleet
32.57T228,361
4auranvesdranor
11.8% of the fleet
30.44T220,634
5randomchampgamer
4.5% of the fleet
11.58T85,881
6JackIV
3.9% of the fleet
10.06T67,859
7RickEdinson
2.9% of the fleet
7.52T50,091
8gannet
2.8% of the fleet
7.24T46,848
9MoNiKaMaDnEsS
2.0% of the fleet
5.07T33,687
10NeoArcturus
1.6% of the fleet
4.09T16,758

and 25 more.

35 accounts · 257.50T 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