AtomicDB

Sign in Register
93.8M
positions
19.0M
practically solved
342.19T
engine nodes
2.6M
analyses
62
in queue
14
active workers
68
active cores
99.8M
nodes / sec
45.4
positions / min
108
proof number
4,747
disproof number
Root conquest: 0/20 first moves solved · 20.2% of tree positions solved · last 24h: 1.0M closures, 7.32T nodes searched
Proof health & closures by source
Proof health · median disproof number on the AND frontier: 70 over 208 open obligations, of which 39 (18.8%) 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 1.3m (median of 80) · measured at 2026-10-22 06:00 UTC
Closures by source, last 24h (1039047 of 1039047 labelled): USER 99.5% (1033427) · FILL 0.2% (2160) · AUTO 0.3% (3413) · SOLVE 0.0% (0) · NONE 0.0% (47) · last 7d (2734805 of 2734848): USER 97.2% (2659176) · FILL 0.4% (11815) · AUTO 2.2% (60947) · SOLVE 0.0% (0) · NONE 0.1% (2867). 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
g1f3unsolved11622
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
62.9% of the fleet
4.60T34,521
2BManBJ
25.9% of the fleet
1.90T14,958
3RickEdinson
6.7% of the fleet
494.11B2,999
4MoNiKaMaDnEsS
4.0% of the fleet
291.06B2,074
5soothdest
0.5% of the fleet
33.49B199

5 accounts · 7.32T nodes searched by the whole fleet.

All time

ContributorNodesAnalyses
1NitroColoraze
26.4% of the fleet
90.30T751,082
2BManBJ
18.1% of the fleet
61.84T438,514
3tenzink
12.5% of the fleet
42.83T349,427
4Torom
9.4% of the fleet
32.10T230,302
5auranvesdranor
9.2% of the fleet
31.40T228,002
6randomchampgamer
5.8% of the fleet
19.85T140,897
7RickEdinson
4.9% of the fleet
16.63T109,928
8JackIV
2.9% of the fleet
10.06T67,859
9MoNiKaMaDnEsS
2.8% of the fleet
9.49T65,321
10gannet
2.1% of the fleet
7.24T46,848

and 25 more.

35 accounts · 342.42T 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