AtomicDB

Sign in Register
94.6M
positions
19.4M
practically solved
343.80T
engine nodes
2.6M
analyses
58
in queue
14
active workers
68
active cores
97.7M
nodes / sec
46.7
positions / min
108
proof number
4,747
disproof number
Root conquest: 0/20 first moves solved · 20.5% of tree positions solved · last 24h: 1.1M closures, 6.49T nodes searched
Proof health & closures by source
Proof health · median disproof number on the AND frontier: 71 over 209 open obligations, of which 39 (18.7%) 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 1.1m (median of 108) · measured at 2026-10-22 14:00 UTC
Closures by source, last 24h (1101403 of 1101462 labelled): USER 99.4% (1095018) · FILL 0.3% (2861) · AUTO 0.3% (3468) · SOLVE 0.0% (0) · NONE 0.0% (56) · last 7d (3041941 of 3042184): USER 98.0% (2981009) · FILL 0.4% (11527) · AUTO 1.5% (46531) · SOLVE 0.0% (0) · NONE 0.1% (2874). 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
g1f3unsolved12032
g1h3unsolved6302
e2e3unsolved5053
d2d4unsolved4022
e2e4unsolved4002
b1c3unsolved1382
c2c3unsolved02
g2g3unsolved02
b1a3unsolved03
b2b4unsolved-653
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
55.3% of the fleet
3.59T26,758
2BManBJ
29.6% of the fleet
1.92T15,105
3RickEdinson
7.6% of the fleet
494.17B3,140
4MoNiKaMaDnEsS
7.0% of the fleet
454.65B3,342
5soothdest
0.5% of the fleet
33.49B199

5 accounts · 6.49T nodes searched by the whole fleet.

All time

ContributorNodesAnalyses
1NitroColoraze
26.3% of the fleet
90.30T751,082
2BManBJ
18.2% of the fleet
62.46T443,467
3tenzink
12.5% of the fleet
42.83T349,427
4Torom
9.4% of the fleet
32.45T233,025
5auranvesdranor
9.1% of the fleet
31.40T228,002
6randomchampgamer
5.8% of the fleet
19.85T140,897
7RickEdinson
4.9% of the fleet
16.79T111,066
8JackIV
2.9% of the fleet
10.06T67,859
9MoNiKaMaDnEsS
2.8% of the fleet
9.76T67,361
10gannet
2.1% of the fleet
7.24T46,848

and 25 more.

35 accounts · 343.82T 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 23 proposals · see every proposal

Milestones