AtomicDB

Sign in Register
54.4M
positions
8.5M
practically solved
197.19T
engine nodes
1.6M
analyses
3,948
in queue
11
active workers
72
active cores
24.2M
nodes / sec
23.1
positions / min
131
proof number
3,716
disproof number
Root conquest: 0/20 first moves solved · 15.6% of tree positions solved · last 24h: 311,567 closures, 4.27T nodes searched
Proof health & closures by source
Proof health · median disproof number on the AND frontier: 75 over 166 open obligations, of which 29 (17.5%) 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 18.8m (median of 250) · measured at 2026-09-17 08:00 UTC
Closures by source, last 24h (311548 of 311548 labelled): USER 99.8% (310894) · FILL 0.0% (0) · AUTO 0.0% (0) · SOLVE 0.0% (0) · NONE 0.2% (654) · last 7d (1314203 of 1314222): USER 93.2% (1224260) · FILL 1.0% (12680) · AUTO 5.6% (73238) · SOLVE 0.0% (0) · NONE 0.3% (4025). 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
g1f3unsolved10912
g1h3unsolved8202
e2e3unsolved5023
e2e4unsolved4092
d2d4unsolved4082
b1c3unsolved742
c2c3unsolved02
g2g3unsolved02
b2b4unsolved03
b1a3unsolved03
h2h3unsolved-1002
a2a3unsolved-1032
f2f3unsolved-1102
d2d3unsolved-1162
b2b3unsolved-1191
f2f4unsolved-2233
h2h4unsolved-5002
a2a4unsolved-5022
g2g4unsolved-6002
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
1auranvesdranor
33.6% of the fleet
1.43T11,016
2BManBJ
32.6% of the fleet
1.39T10,713
3tenzink
14.4% of the fleet
613.80B3,477
4randomchampgamer
13.8% of the fleet
588.47B4,650
5MoNiKaMaDnEsS
3.7% of the fleet
157.28B934
6NeoArcturus
2.0% of the fleet
85.13B244

6 accounts · 4.27T nodes searched by the whole fleet.

All time

ContributorNodesAnalyses
1NitroColoraze
40.4% of the fleet
79.65T677,611
2tenzink
16.8% of the fleet
33.12T284,125
3auranvesdranor
10.4% of the fleet
20.48T146,027
4BManBJ
10.0% of the fleet
19.78T132,439
5JackIV
4.0% of the fleet
7.94T56,572
6randomchampgamer
3.2% of the fleet
6.40T45,093
7RickEdinson
3.2% of the fleet
6.32T41,667
8NeoArcturus
2.1% of the fleet
4.09T16,751
9ijh
1.8% of the fleet
3.57T37,348
10MoNiKaMaDnEsS
1.8% of the fleet
3.45T21,978

and 22 more.

32 accounts · 197.28T 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 18 proposals · see every proposal

Milestones