AtomicDB

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56.3M
positions
9.0M
practically solved
203.60T
engine nodes
1.6M
analyses
1,848
in queue
9
active workers
66
active cores
20.7M
nodes / sec
15.0
positions / min
131
proof number
3,717
disproof number
Root conquest: 0/20 first moves solved · 16.0% of tree positions solved · last 24h: 397,226 closures, 5.48T nodes searched
Proof health & closures by source
Proof health · median disproof number on the AND frontier: 71 over 169 open obligations, of which 31 (18.3%) 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 14.5m (median of 57) · measured at 2026-09-18 13:00 UTC
Closures by source, last 24h (397226 of 397226 labelled): USER 99.9% (396779) · FILL 0.0% (0) · AUTO 0.0% (0) · SOLVE 0.0% (0) · NONE 0.1% (447) · last 7d (1602090 of 1602090): USER 98.2% (1573346) · FILL 0.2% (3855) · AUTO 1.3% (21080) · SOLVE 0.0% (0) · NONE 0.2% (3809). 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
g1f3unsolved11002
g1h3unsolved7702
e2e3unsolved5053
e2e4unsolved4172
d2d4unsolved4082
b1c3unsolved712
c2c3unsolved02
g2g3unsolved02
b2b4unsolved03
b1a3unsolved03
h2h3unsolved-1002
a2a3unsolved-1032
f2f3unsolved-1102
d2d3unsolved-1162
b2b3unsolved-1191
f2f4unsolved-2233
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
1Torom
27.0% of the fleet
1.48T10,301
2BManBJ
25.0% of the fleet
1.37T10,423
3auranvesdranor
21.0% of the fleet
1.15T8,749
4randomchampgamer
11.3% of the fleet
617.49B4,878
5tenzink
11.0% of the fleet
601.30B3,827
6MoNiKaMaDnEsS
4.7% of the fleet
256.38B1,645

6 accounts · 5.48T nodes searched by the whole fleet.

All time

ContributorNodesAnalyses
1NitroColoraze
39.1% of the fleet
79.65T677,611
2tenzink
16.6% of the fleet
33.85T288,486
3auranvesdranor
10.8% of the fleet
21.98T157,375
4BManBJ
10.5% of the fleet
21.44T145,043
5JackIV
3.9% of the fleet
7.94T56,572
6randomchampgamer
3.5% of the fleet
7.13T50,908
7RickEdinson
3.1% of the fleet
6.32T41,667
8NeoArcturus
2.0% of the fleet
4.09T16,751
9MoNiKaMaDnEsS
1.8% of the fleet
3.71T23,623
10ijh
1.8% of the fleet
3.57T37,348

and 22 more.

32 accounts · 203.64T 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 19 proposals · see every proposal

Milestones