AtomicDB

Sign in Register
75.4M
positions
14.1M
practically solved
270.40T
engine nodes
2.1M
analyses
3,787
in queue
9
active workers
48
active cores
25.3M
nodes / sec
13.7
positions / min
82
proof number
3,796
disproof number
Root conquest: 0/20 first moves solved · 18.7% of tree positions solved · last 24h: 235,421 closures, 3.18T nodes searched
Proof health & closures by source
Proof health · median disproof number on the AND frontier: 67 over 215 open obligations, of which 42 (19.5%) 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 42s (median of 173) · measured at 2026-10-05 12:00 UTC
Closures by source, last 24h (235421 of 235421 labelled): USER 99.6% (234535) · FILL 0.0% (0) · AUTO 0.0% (0) · SOLVE 0.0% (0) · NONE 0.4% (886) · last 7d (2189028 of 2189028): USER 99.8% (2183793) · FILL 0.0% (0) · AUTO 0.0% (0) · SOLVE 0.0% (0) · NONE 0.2% (5235). 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
g1f3unsolved11012
g1h3unsolved8202
e2e3unsolved5053
d2d4unsolved4402
e2e4unsolved4182
b1c3unsolved1022
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
1BManBJ
35.3% of the fleet
1.12T7,973
2tenzink
22.1% of the fleet
703.11B5,040
3randomchampgamer
21.1% of the fleet
671.58B4,985
4RickEdinson
14.7% of the fleet
466.61B3,273
5MoNiKaMaDnEsS
6.6% of the fleet
211.16B1,666
6quasa
0.1% of the fleet
3.35B27

6 accounts · 3.18T nodes searched by the whole fleet.

All time

ContributorNodesAnalyses
1NitroColoraze
33.4% of the fleet
90.30T751,082
2tenzink
15.2% of the fleet
41.21T339,281
3BManBJ
13.9% of the fleet
37.66T266,323
4auranvesdranor
11.6% of the fleet
31.40T228,002
5randomchampgamer
5.2% of the fleet
14.02T104,303
6JackIV
3.7% of the fleet
10.06T67,859
7RickEdinson
3.4% of the fleet
9.21T62,081
8gannet
2.7% of the fleet
7.24T46,848
9MoNiKaMaDnEsS
2.0% of the fleet
5.43T36,504
10NeoArcturus
1.5% of the fleet
4.09T16,758

and 25 more.

35 accounts · 270.52T 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