AtomicDB

Sign in Register
79.6M
positions
15.3M
practically solved
287.38T
engine nodes
2.2M
analyses
4,671
in queue
14
active workers
66
active cores
43.8M
nodes / sec
34.0
positions / min
82
proof number
4,106
disproof number
Root conquest: 0/20 first moves solved · 19.2% of tree positions solved · last 24h: 180,861 closures, 3.31T nodes searched
Proof health & closures by source
Proof health · median disproof number on the AND frontier: 70 over 219 open obligations, of which 40 (18.3%) 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 6.7h (median of 81) · measured at 2026-10-09 12:00 UTC
Closures by source, last 24h (180800 of 180800 labelled): USER 100.0% (180754) · FILL 0.0% (0) · AUTO 0.0% (0) · SOLVE 0.0% (0) · NONE 0.0% (46) · last 7d (1673786 of 1673847): USER 99.0% (1656511) · FILL 0.1% (2071) · AUTO 0.7% (11952) · SOLVE 0.0% (0) · NONE 0.2% (3252). 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
g1f3unsolved10672
g1h3unsolved8202
e2e3unsolved5053
e2e4unsolved4002
d2d4unsolved3792
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
1BManBJ
45.6% of the fleet
1.51T9,945
2randomchampgamer
19.9% of the fleet
658.05B4,598
3Torom
18.0% of the fleet
597.38B4,250
4RickEdinson
13.4% of the fleet
443.13B2,719
5MoNiKaMaDnEsS
3.0% of the fleet
100.14B729
6soothdest
0.1% of the fleet
2.73B31

6 accounts · 3.31T nodes searched by the whole fleet.

All time

ContributorNodesAnalyses
1NitroColoraze
31.4% of the fleet
90.30T751,082
2BManBJ
15.2% of the fleet
43.81T306,864
3tenzink
14.9% of the fleet
42.83T349,427
4auranvesdranor
10.9% of the fleet
31.40T228,002
5randomchampgamer
5.8% of the fleet
16.61T121,796
6RickEdinson
3.8% of the fleet
11.04T73,605
7JackIV
3.5% of the fleet
10.06T67,859
8Torom
2.6% of the fleet
7.55T56,944
9gannet
2.5% of the fleet
7.24T46,848
10MoNiKaMaDnEsS
2.2% of the fleet
6.20T42,008

and 25 more.

35 accounts · 287.64T 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 22 proposals · see every proposal

Milestones