AtomicDB

Sign in Register
73.4M
positions
13.7M
practically solved
262.41T
engine nodes
2.0M
analyses
5,515
in queue
9
active workers
51
active cores
3.7M
nodes / sec
20.5
positions / min
82
proof number
3,797
disproof number
Root conquest: 0/20 first moves solved · 18.7% of tree positions solved · last 24h: 297,671 closures, 3.81T nodes searched
Proof health & closures by source
Proof health · median disproof number on the AND frontier: 73 over 206 open obligations, of which 37 (18.0%) 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 11.6h (median of 52) · measured at 2026-10-03 04:00 UTC
Closures by source, last 24h (297671 of 297671 labelled): USER 99.7% (296675) · FILL 0.0% (0) · AUTO 0.0% (0) · SOLVE 0.0% (0) · NONE 0.3% (996) · last 7d (2637819 of 2637819): USER 98.5% (2598130) · FILL 0.3% (8452) · AUTO 1.0% (26873) · SOLVE 0.0% (0) · NONE 0.2% (4364). 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
g1h3unsolved7252
e2e3unsolved5053
d2d4unsolved4392
e2e4unsolved4172
b1c3unsolved1102
c2c3unsolved02
g2g3unsolved02
b2b4unsolved03
b1a3unsolved03
h2h3unsolved-972
d2d3unsolved-982
a2a3unsolved-1002
f2f3unsolved-1173
b2b3unsolved-1441
f2f4unsolved-3053
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
34.5% of the fleet
1.32T9,917
2auranvesdranor
17.9% of the fleet
682.64B5,233
3tenzink
17.1% of the fleet
652.72B4,876
4randomchampgamer
16.8% of the fleet
640.87B5,113
5RickEdinson
11.8% of the fleet
448.22B3,297
6MoNiKaMaDnEsS
1.5% of the fleet
57.95B453
7quasa
0.2% of the fleet
7.94B62
8soothdest
0.1% of the fleet
5.48B51

8 accounts · 3.81T nodes searched by the whole fleet.

All time

ContributorNodesAnalyses
1NitroColoraze
34.4% of the fleet
90.30T751,082
2tenzink
15.1% of the fleet
39.57T327,583
3BManBJ
13.1% of the fleet
34.28T241,479
4auranvesdranor
12.0% of the fleet
31.40T228,002
5randomchampgamer
4.7% of the fleet
12.39T92,354
6JackIV
3.8% of the fleet
10.06T67,859
7RickEdinson
3.1% of the fleet
8.08T54,279
8gannet
2.8% of the fleet
7.24T46,848
9MoNiKaMaDnEsS
2.0% of the fleet
5.19T34,655
10NeoArcturus
1.6% of the fleet
4.09T16,758

and 25 more.

35 accounts · 262.50T 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