AtomicDB

Sign in Register
102.5M
positions
21.6M
practically solved
375.58T
engine nodes
2.8M
analyses
626
in queue
13
active workers
60
active cores
84.2M
nodes / sec
25.4
positions / min
107
proof number
4,824
disproof number
Root conquest: 0/20 first moves solved · 21.0% of tree positions solved · last 24h: 171,758 closures, 3.97T nodes searched
Proof health & closures by source
Proof health · median disproof number on the AND frontier: 72 over 202 open obligations, of which 37 (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 5.7m (median of 44) · measured at 2026-10-28 22:00 UTC
Closures by source, last 24h (171758 of 171758 labelled): USER 99.5% (170945) · FILL 0.4% (691) · AUTO 0.0% (0) · SOLVE 0.0% (0) · NONE 0.1% (122) · last 7d (2762815 of 2762815): USER 99.0% (2735466) · FILL 0.3% (8825) · AUTO 0.7% (18022) · SOLVE 0.0% (0) · NONE 0.0% (502). 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
g1f3unsolved11792
g1h3unsolved8202
e2e3unsolved4693
d2d4unsolved4052
e2e4unsolved4012
b1c3unsolved1382
b1a3unsolved03
c2c3unsolved02
g2g3unsolved02
b2b4unsolved-593
h2h3unsolved-972
d2d3unsolved-982
a2a3unsolved-1002
f2f3unsolved-1173
b2b3unsolved-1441
f2f4unsolved-2603
h2h4unsolved-5002
a2a4unsolved-5142
g2g4unsolved-6042
c2c4unsolved-7003

Best and worst values over time, and the main line

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
44.8% of the fleet
1.78T11,947
2BManBJ
35.6% of the fleet
1.41T6,045
3RickEdinson
12.7% of the fleet
505.23B2,812
4MoNiKaMaDnEsS
6.9% of the fleet
275.74B1,605

4 accounts · 3.97T nodes searched by the whole fleet.

All time

ContributorNodesAnalyses
1NitroColoraze
24.0% of the fleet
90.30T751,082
2BManBJ
19.6% of the fleet
73.48T511,723
3Torom
12.9% of the fleet
48.28T349,609
4tenzink
11.4% of the fleet
42.83T349,427
5auranvesdranor
8.4% of the fleet
31.40T228,002
6RickEdinson
5.3% of the fleet
19.85T130,157
7randomchampgamer
5.3% of the fleet
19.85T140,897
8MoNiKaMaDnEsS
3.1% of the fleet
11.71T80,608
9JackIV
2.7% of the fleet
10.06T67,859
10gannet
1.9% of the fleet
7.24T46,848

and 25 more.

35 accounts · 375.69T 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