AtomicDB

Sign in Register
68.5M
positions
12.4M
practically solved
246.47T
engine nodes
1.9M
analyses
4,137
in queue
18
active workers
124
active cores
13.3M
nodes / sec
37.3
positions / min
57
proof number
3,808
disproof number
Root conquest: 0/20 first moves solved · 18.1% of tree positions solved · last 24h: 363,977 closures, 7.03T nodes searched
Proof health & closures by source
Proof health · median disproof number on the AND frontier: 81 over 201 open obligations, of which 32 (15.9%) 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 21.5m (median of 160) · measured at 2026-09-30 06:00 UTC
Closures by source, last 24h (363944 of 363944 labelled): USER 99.9% (363725) · FILL 0.0% (0) · AUTO 0.0% (0) · SOLVE 0.0% (0) · NONE 0.1% (219) · last 7d (2065080 of 2065097): USER 97.9% (2021478) · FILL 0.4% (8795) · AUTO 1.6% (32065) · SOLVE 0.0% (0) · NONE 0.1% (2742). 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
g1f3unsolved10382
g1h3unsolved8122
e2e3unsolved4533
d2d4unsolved4372
e2e4unsolved4072
b1c3unsolved1422
c2c3unsolved02
g2g3unsolved02
b2b4unsolved03
b1a3unsolved03
h2h3unsolved-982
a2a3unsolved-1032
d2d3unsolved-1162
f2f3unsolved-1173
b2b3unsolved-1691
f2f4unsolved-3023
h2h4unsolved-5002
a2a4unsolved-5102
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
1gannet
39.3% of the fleet
2.76T18,599
2BManBJ
20.6% of the fleet
1.45T11,000
3auranvesdranor
14.5% of the fleet
1.02T7,780
4tenzink
8.6% of the fleet
607.79B4,398
5randomchampgamer
8.3% of the fleet
583.69B4,662
6RickEdinson
4.8% of the fleet
339.58B2,225
7MoNiKaMaDnEsS
3.9% of the fleet
272.05B2,055
8soothdest
<0.1% of the fleet
1.31B21

8 accounts · 7.03T nodes searched by the whole fleet.

All time

ContributorNodesAnalyses
1NitroColoraze
36.6% of the fleet
90.30T751,082
2tenzink
15.3% of the fleet
37.72T314,149
3BManBJ
12.2% of the fleet
30.11T209,190
4auranvesdranor
11.6% of the fleet
28.71T207,479
5randomchampgamer
4.3% of the fleet
10.56T77,820
6JackIV
4.1% of the fleet
10.06T67,859
7RickEdinson
2.8% of the fleet
6.96T46,195
8MoNiKaMaDnEsS
1.8% of the fleet
4.50T29,285
9NeoArcturus
1.7% of the fleet
4.09T16,758
10gannet
1.6% of the fleet
3.87T21,000

and 25 more.

35 accounts · 246.64T 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