AtomicDB

Sign in Register
64.4M
positions
11.5M
practically solved
231.17T
engine nodes
1.8M
analyses
3,139
in queue
11
active workers
68
active cores
18.1M
nodes / sec
18.2
positions / min
125
proof number
3,773
disproof number
Root conquest: 0/20 first moves solved · 17.8% of tree positions solved · last 24h: 460,161 closures, 6.08T nodes searched
Proof health & closures by source
Proof health · median disproof number on the AND frontier: 81 over 189 open obligations, of which 30 (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 32.7m (median of 180) · measured at 2026-09-27 09:00 UTC
Closures by source, last 24h (460159 of 460159 labelled): USER 93.1% (428221) · FILL 1.7% (7690) · AUTO 5.1% (23357) · SOLVE 0.0% (0) · NONE 0.2% (891) · last 7d (1313879 of 1313880): USER 96.7% (1271057) · FILL 0.7% (8795) · AUTO 2.4% (32065) · SOLVE 0.0% (0) · NONE 0.1% (1962). 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
g1f3unsolved9322
g1h3unsolved7932
e2e3unsolved5053
d2d4unsolved4352
e2e4unsolved4172
b1c3unsolved1832
c2c3unsolved02
g2g3unsolved02
b2b4unsolved03
b1a3unsolved03
h2h3unsolved-1002
a2a3unsolved-1032
f2f3unsolved-1102
d2d3unsolved-1162
b2b3unsolved-1191
f2f4unsolved-3013
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
1NitroColoraze
55.3% of the fleet
3.35T17,555
2BManBJ
13.2% of the fleet
802.01B5,337
3auranvesdranor
11.9% of the fleet
723.54B4,335
4tenzink
9.6% of the fleet
584.21B3,321
5randomchampgamer
6.8% of the fleet
411.08B2,952
6MoNiKaMaDnEsS
3.0% of the fleet
179.59B1,297
7RandomMatrix
0.2% of the fleet
10.11B76
8bricerichmond
<0.1% of the fleet
444.3M4
9soothdest
<0.1% of the fleet
22.5M2

9 accounts · 6.07T nodes searched by the whole fleet.

All time

ContributorNodesAnalyses
1NitroColoraze
39.0% of the fleet
90.30T751,082
2tenzink
15.6% of the fleet
36.13T303,553
3BManBJ
11.3% of the fleet
26.03T178,517
4auranvesdranor
11.2% of the fleet
25.86T185,870
5JackIV
4.3% of the fleet
10.06T67,859
6randomchampgamer
3.8% of the fleet
8.90T64,458
7RickEdinson
2.8% of the fleet
6.50T43,070
8MoNiKaMaDnEsS
1.8% of the fleet
4.14T26,565
9NeoArcturus
1.8% of the fleet
4.09T16,756
10ijh
1.5% of the fleet
3.57T37,348

and 23 more.

33 accounts · 231.27T 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