AtomicDB

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72.2M
positions
13.4M
practically solved
258.55T
engine nodes
2.0M
analyses
6,786
in queue
12
active workers
78
active cores
15.3M
nodes / sec
29.2
positions / min
82
proof number
3,797
disproof number
Root conquest: 0/20 first moves solved · 18.5% of tree positions solved · last 24h: 507,953 closures, 5.36T nodes searched
Proof health & closures by source
Proof health · median disproof number on the AND frontier: 78 over 202 open obligations, of which 33 (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 3.3m (median of 46) · measured at 2026-10-02 04:00 UTC
Closures by source, last 24h (507425 of 507470 labelled): USER 99.8% (506469) · FILL 0.0% (0) · AUTO 0.0% (0) · SOLVE 0.0% (0) · NONE 0.2% (956) · last 7d (2948202 of 2948479): USER 98.5% (2903470) · FILL 0.3% (8795) · AUTO 1.1% (32065) · SOLVE 0.0% (0) · NONE 0.1% (3872). 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
d2d4unsolved4392
e2e4unsolved3992
b1c3unsolved1312
c2c3unsolved02
g2g3unsolved02
b2b4unsolved03
b1a3unsolved03
h2h3unsolved-972
d2d3unsolved-982
a2a3unsolved-1002
f2f3unsolved-1173
b2b3unsolved-1441
f2f4unsolved-3053
h2h4unsolved-5002
a2a4unsolved-5142
g2g4unsolved-6042
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
27.2% of the fleet
1.46T11,529
2auranvesdranor
19.5% of the fleet
1.05T7,979
3tenzink
12.3% of the fleet
659.70B4,813
4randomchampgamer
11.6% of the fleet
623.99B4,868
5gannet
9.6% of the fleet
516.72B4,006
6MoNiKaMaDnEsS
9.0% of the fleet
480.19B3,701
7RickEdinson
8.5% of the fleet
453.22B3,307
8quasa
2.3% of the fleet
120.64B937

8 accounts · 5.36T nodes searched by the whole fleet.

All time

ContributorNodesAnalyses
1NitroColoraze
34.9% of the fleet
90.30T751,082
2tenzink
15.0% of the fleet
38.90T322,591
3BManBJ
12.7% of the fleet
32.92T231,243
4auranvesdranor
11.9% of the fleet
30.69T222,569
5randomchampgamer
4.5% of the fleet
11.73T87,102
6JackIV
3.9% of the fleet
10.06T67,859
7RickEdinson
2.9% of the fleet
7.62T50,893
8gannet
2.8% of the fleet
7.24T46,848
9MoNiKaMaDnEsS
2.0% of the fleet
5.12T34,102
10NeoArcturus
1.6% of the fleet
4.09T16,758

and 25 more.

35 accounts · 258.57T 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