AtomicDB

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63.4M
positions
11.2M
practically solved
229.18T
engine nodes
1.8M
analyses
4,804
in queue
20
active workers
356
active cores
46.1M
nodes / sec
21.2
positions / min
125
proof number
3,794
disproof number
Root conquest: 0/20 first moves solved · 17.6% of tree positions solved · last 24h: 632,496 closures, 8.34T nodes searched
Proof health & closures by source
Proof health · median disproof number on the AND frontier: 80 over 184 open obligations, of which 30 (16.3%) 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 7.7d (median of 27) · measured at 2026-09-26 21:00 UTC
Closures by source, last 24h (631636 of 631636 labelled): USER 94.4% (596550) · FILL 1.2% (7784) · AUTO 4.1% (26146) · SOLVE 0.0% (0) · NONE 0.2% (1156) · last 7d (1256889 of 1256889): USER 97.0% (1218789) · FILL 0.6% (7858) · AUTO 2.3% (28352) · SOLVE 0.0% (0) · NONE 0.2% (1890). Labelling started at deploy: closures older than that carry no source and are counted in none of the shares above.

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Keyboard move list

First moves from the starting position

movestateevalvisits
g1f3unsolved10252
g1h3unsolved6742
e2e3unsolved5053
e2e4unsolved4172
d2d4unsolved3882
b1c3unsolved1592
c2c3unsolved02
g2g3unsolved02
b2b4unsolved03
b1a3unsolved03
h2h3unsolved-1002
a2a3unsolved-1032
f2f3unsolved-1102
d2d3unsolved-1162
b2b3unsolved-1191
f2f4unsolved-3023
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
82.3% of the fleet
6.87T44,144
2tenzink
5.6% of the fleet
466.98B3,010
3BManBJ
5.3% of the fleet
443.45B3,359
4auranvesdranor
2.6% of the fleet
212.96B1,420
5randomchampgamer
2.1% of the fleet
175.98B1,319
6RickEdinson
1.0% of the fleet
80.86B642
7MoNiKaMaDnEsS
1.0% of the fleet
80.84B633
8RandomMatrix
0.1% of the fleet
10.11B76
9Torom
<0.1% of the fleet
3.44B8

9 accounts · 8.35T nodes searched by the whole fleet.

All time

ContributorNodesAnalyses
1NitroColoraze
39.3% of the fleet
90.25T750,993
2tenzink
15.6% of the fleet
35.81T301,736
3BManBJ
11.1% of the fleet
25.55T175,671
4auranvesdranor
11.0% of the fleet
25.35T182,954
5JackIV
4.4% of the fleet
10.06T67,859
6randomchampgamer
3.8% of the fleet
8.61T62,405
7RickEdinson
2.8% of the fleet
6.50T43,070
8NeoArcturus
1.8% of the fleet
4.09T16,756
9MoNiKaMaDnEsS
1.8% of the fleet
4.04T25,901
10ijh
1.6% of the fleet
3.57T37,348

and 22 more.

32 accounts · 229.53T 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