AtomicDB

Sign in Register
69.3M
positions
12.6M
practically solved
249.36T
engine nodes
1.9M
analyses
7,722
in queue
21
active workers
134
active cores
24.5M
nodes / sec
38.7
positions / min
82
proof number
3,797
disproof number
Root conquest: 0/20 first moves solved · 18.1% of tree positions solved · last 24h: 424,915 closures, 6.92T 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 2.8m (median of 106) · measured at 2026-09-30 16:00 UTC
Closures by source, last 24h (424833 of 424833 labelled): USER 99.9% (424597) · FILL 0.0% (0) · AUTO 0.0% (0) · SOLVE 0.0% (0) · NONE 0.1% (236) · last 7d (2236429 of 2236505): USER 98.0% (2192799) · 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
41.6% of the fleet
2.88T22,173
2BManBJ
21.5% of the fleet
1.49T11,489
3auranvesdranor
14.9% of the fleet
1.03T7,852
4randomchampgamer
8.7% of the fleet
602.72B4,854
5tenzink
8.3% of the fleet
572.77B4,023
6RickEdinson
2.8% of the fleet
193.59B1,287
7MoNiKaMaDnEsS
2.2% of the fleet
151.87B1,184

7 accounts · 6.92T nodes searched by the whole fleet.

All time

ContributorNodesAnalyses
1NitroColoraze
36.2% of the fleet
90.30T751,082
2tenzink
15.2% of the fleet
37.94T315,568
3BManBJ
12.3% of the fleet
30.73T214,060
4auranvesdranor
11.7% of the fleet
29.14T210,771
5randomchampgamer
4.3% of the fleet
10.81T79,843
6JackIV
4.0% of the fleet
10.06T67,859
7RickEdinson
2.8% of the fleet
6.98T46,301
8gannet
2.1% of the fleet
5.15T30,734
9MoNiKaMaDnEsS
1.8% of the fleet
4.55T29,658
10NeoArcturus
1.6% of the fleet
4.09T16,758

and 25 more.

35 accounts · 249.52T 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