AtomicDB

Sign in Register
69.4M
positions
12.6M
practically solved
249.67T
engine nodes
1.9M
analyses
7,051
in queue
21
active workers
134
active cores
33.4M
nodes / sec
44.5
positions / min
82
proof number
3,797
disproof number
Root conquest: 0/20 first moves solved · 18.1% of tree positions solved · last 24h: 431,508 closures, 6.96T nodes searched
Proof health & closures by source
Proof health · median disproof number on the AND frontier: 80 over 198 open obligations, of which 32 (16.2%) 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 3.8m (median of 103) · measured at 2026-09-30 17:00 UTC
Closures by source, last 24h (431338 of 431338 labelled): USER 99.9% (431102) · FILL 0.0% (0) · AUTO 0.0% (0) · SOLVE 0.0% (0) · NONE 0.1% (236) · last 7d (2251176 of 2251346): USER 98.1% (2207546) · FILL 0.4% (8795) · AUTO 1.4% (32065) · SOLVE 0.0% (0) · NONE 0.1% (2770). 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
g1h3unsolved7752
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
41.9% of the fleet
2.92T22,466
2BManBJ
21.4% of the fleet
1.49T11,487
3auranvesdranor
14.9% of the fleet
1.04T7,905
4randomchampgamer
8.7% of the fleet
608.58B4,905
5tenzink
8.2% of the fleet
568.29B3,997
6RickEdinson
2.7% of the fleet
186.48B1,249
7MoNiKaMaDnEsS
2.2% of the fleet
153.54B1,201

7 accounts · 6.96T nodes searched by the whole fleet.

All time

ContributorNodesAnalyses
1NitroColoraze
36.1% of the fleet
90.30T751,082
2tenzink
15.2% of the fleet
37.96T315,696
3BManBJ
12.3% of the fleet
30.78T214,427
4auranvesdranor
11.7% of the fleet
29.19T211,098
5randomchampgamer
4.3% of the fleet
10.84T80,059
6JackIV
4.0% of the fleet
10.06T67,859
7RickEdinson
2.8% of the fleet
6.99T46,355
8gannet
2.1% of the fleet
5.29T31,835
9MoNiKaMaDnEsS
1.8% of the fleet
4.57T29,816
10NeoArcturus
1.6% of the fleet
4.09T16,758

and 25 more.

35 accounts · 249.83T 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