AtomicDB

Sign in Register
54.7M
positions
8.6M
practically solved
198.43T
engine nodes
1.6M
analyses
5,356
in queue
12
active workers
64
active cores
16.1M
nodes / sec
21.5
positions / min
131
proof number
3,717
disproof number
Root conquest: 0/20 first moves solved · 15.7% of tree positions solved · last 24h: 306,278 closures, 4.15T nodes searched
Proof health & closures by source
Proof health · median disproof number on the AND frontier: 74 over 169 open obligations, of which 30 (17.8%) 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 2.2h (median of 138) · measured at 2026-09-17 15:00 UTC
Closures by source, last 24h (306205 of 306205 labelled): USER 99.8% (305551) · FILL 0.0% (0) · AUTO 0.0% (0) · SOLVE 0.0% (0) · NONE 0.2% (654) · last 7d (1352659 of 1352662): USER 94.4% (1276897) · FILL 0.8% (10341) · AUTO 4.5% (61385) · SOLVE 0.0% (0) · NONE 0.3% (4036). 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
g1f3unsolved11002
g1h3unsolved8202
e2e3unsolved5023
e2e4unsolved4092
d2d4unsolved4082
b1c3unsolved742
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
1auranvesdranor
35.8% of the fleet
1.49T11,379
2BManBJ
33.3% of the fleet
1.38T10,594
3tenzink
14.7% of the fleet
610.86B2,974
4randomchampgamer
14.3% of the fleet
594.17B4,657
5MoNiKaMaDnEsS
1.8% of the fleet
76.16B442

5 accounts · 4.15T nodes searched by the whole fleet.

All time

ContributorNodesAnalyses
1NitroColoraze
40.1% of the fleet
79.65T677,611
2tenzink
16.8% of the fleet
33.32T284,884
3auranvesdranor
10.5% of the fleet
20.95T149,566
4BManBJ
10.2% of the fleet
20.23T135,867
5JackIV
4.0% of the fleet
7.94T56,572
6randomchampgamer
3.3% of the fleet
6.59T46,583
7RickEdinson
3.2% of the fleet
6.32T41,667
8NeoArcturus
2.1% of the fleet
4.09T16,751
9ijh
1.8% of the fleet
3.57T37,348
10MoNiKaMaDnEsS
1.7% of the fleet
3.47T22,133

and 22 more.

32 accounts · 198.60T 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 18 proposals · see every proposal

Milestones