AtomicDB

Sign in Register
64.6M
positions
11.5M
practically solved
231.57T
engine nodes
1.8M
analyses
2,110
in queue
9
active workers
48
active cores
7.8M
nodes / sec
16.2
positions / min
125
proof number
3,777
disproof number
Root conquest: 0/20 first moves solved · 17.8% of tree positions solved · last 24h: 346,055 closures, 4.93T nodes searched
Proof health & closures by source
Proof health · median disproof number on the AND frontier: 81 over 191 open obligations, of which 30 (15.7%) 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 8.0h (median of 139) · measured at 2026-09-27 12:00 UTC
Closures by source, last 24h (346055 of 346055 labelled): USER 91.4% (316389) · FILL 2.2% (7655) · AUTO 6.2% (21287) · SOLVE 0.0% (0) · NONE 0.2% (724) · last 7d (1296663 of 1296663): USER 96.7% (1253953) · FILL 0.7% (8795) · AUTO 2.5% (32065) · SOLVE 0.0% (0) · NONE 0.1% (1850). 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
g1f3unsolved8172
g1h3unsolved6502
e2e3unsolved5053
d2d4unsolved4352
e2e4unsolved4172
b1c3unsolved1832
c2c3unsolved192
g2g3unsolved02
b2b4unsolved03
b1a3unsolved03
h2h3unsolved-1002
a2a3unsolved-1032
f2f3unsolved-1102
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
1NitroColoraze
37.9% of the fleet
1.87T11,239
2BManBJ
19.9% of the fleet
981.40B6,681
3auranvesdranor
16.5% of the fleet
812.68B4,978
4tenzink
11.7% of the fleet
578.36B3,397
5randomchampgamer
9.9% of the fleet
486.91B3,559
6MoNiKaMaDnEsS
3.6% of the fleet
179.59B1,297
7soothdest
0.3% of the fleet
15.98B122
8RandomMatrix
0.2% of the fleet
10.11B76
9bricerichmond
<0.1% of the fleet
700.3M6

9 accounts · 4.94T nodes searched by the whole fleet.

All time

ContributorNodesAnalyses
1NitroColoraze
39.0% of the fleet
90.30T751,082
2tenzink
15.6% of the fleet
36.19T303,925
3BManBJ
11.3% of the fleet
26.21T179,861
4auranvesdranor
11.2% of the fleet
25.95T186,513
5JackIV
4.3% of the fleet
10.06T67,859
6randomchampgamer
3.9% of the fleet
8.97T65,064
7RickEdinson
2.8% of the fleet
6.50T43,070
8MoNiKaMaDnEsS
1.8% of the fleet
4.14T26,565
9NeoArcturus
1.8% of the fleet
4.09T16,756
10ijh
1.5% of the fleet
3.57T37,348

and 23 more.

33 accounts · 231.70T 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