AtomicDB

Sign in Register
78.8M
positions
15.1M
practically solved
284.07T
engine nodes
2.2M
analyses
6,695
in queue
14
active workers
66
active cores
17.7M
nodes / sec
33.8
positions / min
82
proof number
4,106
disproof number
Root conquest: 0/20 first moves solved · 19.2% of tree positions solved · last 24h: 400,862 closures, 5.82T nodes searched
Proof health & closures by source
Proof health · median disproof number on the AND frontier: 69 over 218 open obligations, of which 41 (18.8%) 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 15.3h (median of 24) · measured at 2026-10-08 12:00 UTC
Closures by source, last 24h (400850 of 400850 labelled): USER 96.6% (387167) · FILL 0.4% (1651) · AUTO 3.0% (11927) · SOLVE 0.0% (0) · NONE 0.0% (105) · last 7d (1882902 of 1882902): USER 99.0% (1864704) · FILL 0.1% (2071) · AUTO 0.6% (11952) · SOLVE 0.0% (0) · NONE 0.2% (4175). Labelling started at deploy: closures older than that carry no source and are counted in none of the shares above.

Now analyzing

Up next

Play to explore drag a piece or click two squares

Keyboard move list

First moves from the starting position

movestateevalvisits
g1f3unsolved10462
g1h3unsolved8202
e2e3unsolved5053
e2e4unsolved4002
d2d4unsolved3702
b1c3unsolved1272
b1a3unsolved03
c2c3unsolved02
g2g3unsolved02
b2b4unsolved-733
h2h3unsolved-972
d2d3unsolved-982
a2a3unsolved-1002
f2f3unsolved-1173
b2b3unsolved-1441
f2f4unsolved-2603
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
1Torom
47.5% of the fleet
2.76T21,039
2BManBJ
26.3% of the fleet
1.53T11,106
3randomchampgamer
11.4% of the fleet
663.43B5,066
4RickEdinson
7.6% of the fleet
443.02B3,158
5tenzink
4.6% of the fleet
268.91B1,924
6MoNiKaMaDnEsS
2.7% of the fleet
154.98B1,436
7NeoArcturus
<0.1% of the fleet
546.0M5

7 accounts · 5.83T nodes searched by the whole fleet.

All time

ContributorNodesAnalyses
1NitroColoraze
31.8% of the fleet
90.30T751,082
2tenzink
15.1% of the fleet
42.83T349,427
3BManBJ
14.9% of the fleet
42.31T296,932
4auranvesdranor
11.0% of the fleet
31.40T228,002
5randomchampgamer
5.6% of the fleet
15.95T117,201
6RickEdinson
3.7% of the fleet
10.60T70,886
7JackIV
3.5% of the fleet
10.06T67,859
8gannet
2.5% of the fleet
7.24T46,848
9Torom
2.4% of the fleet
6.96T52,743
10MoNiKaMaDnEsS
2.1% of the fleet
6.10T41,279

and 25 more.

35 accounts · 284.34T 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