AtomicDB

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100.7M
positions
21.2M
practically solved
366.51T
engine nodes
2.8M
analyses
173
in queue
13
active workers
60
active cores
85.3M
nodes / sec
36.9
positions / min
107
proof number
4,730
disproof number
Root conquest: 0/20 first moves solved · 21.1% of tree positions solved · last 24h: 223,374 closures, 2.86T nodes searched
Proof health & closures by source
Proof health · median disproof number on the AND frontier: 71 over 201 open obligations, of which 37 (18.4%) 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 2.5m (median of 34) · measured at 2026-10-26 18:00 UTC
Closures by source, last 24h (223363 of 223363 labelled): USER 96.8% (216235) · FILL 1.3% (2926) · AUTO 1.9% (4156) · SOLVE 0.0% (0) · NONE 0.0% (46) · last 7d (3984833 of 3984844): USER 99.5% (3965321) · FILL 0.3% (10834) · AUTO 0.2% (8204) · SOLVE 0.0% (0) · NONE 0.0% (474). 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
g1f3unsolved12342
g1h3unsolved8002
e2e3unsolved4693
d2d4unsolved4012
e2e4unsolved4012
b1c3unsolved1382
b1a3unsolved03
c2c3unsolved02
g2g3unsolved02
b2b4unsolved-653
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
1BManBJ
63.9% of the fleet
1.83T9,749
2MoNiKaMaDnEsS
17.9% of the fleet
512.22B2,921
3RickEdinson
16.9% of the fleet
482.14B2,645
4Torom
1.3% of the fleet
37.00B266

4 accounts · 2.86T nodes searched by the whole fleet.

All time

ContributorNodesAnalyses
1NitroColoraze
24.6% of the fleet
90.30T751,082
2BManBJ
19.1% of the fleet
70.04T493,397
3Torom
12.1% of the fleet
44.23T322,554
4tenzink
11.7% of the fleet
42.83T349,427
5auranvesdranor
8.6% of the fleet
31.40T228,002
6randomchampgamer
5.4% of the fleet
19.85T140,897
7RickEdinson
5.1% of the fleet
18.78T123,986
8MoNiKaMaDnEsS
3.1% of the fleet
11.20T77,370
9JackIV
2.7% of the fleet
10.06T67,859
10gannet
2.0% of the fleet
7.24T46,848

and 25 more.

35 accounts · 366.62T 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