AtomicDB

Sign in Register
77.2M
positions
14.7M
practically solved
278.21T
engine nodes
2.1M
analyses
96
in queue
10
active workers
52
active cores
29.9M
nodes / sec
17.8
positions / min
82
proof number
3,796
disproof number
Root conquest: 0/20 first moves solved · 19.0% of tree positions solved · last 24h: 269,095 closures, 4.19T nodes searched
Proof health & closures by source
Proof health · median disproof number on the AND frontier: 69 over 218 open obligations, of which 42 (19.3%) 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 43s (median of 36) · measured at 2026-10-07 11:00 UTC
Closures by source, last 24h (269095 of 269095 labelled): USER 99.9% (268908) · FILL 0.0% (120) · AUTO 0.0% (25) · SOLVE 0.0% (0) · NONE 0.0% (42) · last 7d (1991323 of 1991323): USER 99.7% (1986318) · FILL 0.0% (414) · AUTO 0.0% (25) · SOLVE 0.0% (0) · NONE 0.2% (4566). 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
g1f3unsolved10972
g1h3unsolved7782
e2e3unsolved5053
e2e4unsolved4002
d2d4unsolved3062
b1c3unsolved1252
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
35.9% of the fleet
1.51T10,119
2Torom
18.8% of the fleet
789.59B4,425
3tenzink
15.6% of the fleet
654.87B4,356
4randomchampgamer
14.6% of the fleet
611.94B4,093
5RickEdinson
10.8% of the fleet
453.40B2,901
6MoNiKaMaDnEsS
4.2% of the fleet
175.14B1,264

6 accounts · 4.19T nodes searched by the whole fleet.

All time

ContributorNodesAnalyses
1NitroColoraze
32.5% of the fleet
90.30T751,082
2tenzink
15.3% of the fleet
42.52T347,248
3BManBJ
14.6% of the fleet
40.67T285,184
4auranvesdranor
11.3% of the fleet
31.40T228,002
5randomchampgamer
5.5% of the fleet
15.24T111,868
6RickEdinson
3.6% of the fleet
10.12T67,527
7JackIV
3.6% of the fleet
10.06T67,859
8gannet
2.6% of the fleet
7.24T46,848
9MoNiKaMaDnEsS
2.1% of the fleet
5.91T39,656
10Torom
1.5% of the fleet
4.19T31,704

and 25 more.

35 accounts · 278.25T 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