AtomicDB

Sign in Register
103.7M
positions
22.0M
practically solved
382.16T
engine nodes
2.9M
analyses
1,061
in queue
6
active workers
36
active cores
36.6M
nodes / sec
10.3
positions / min
107
proof number
4,824
disproof number
Root conquest: 0/20 first moves solved · 21.2% of tree positions solved · last 24h: 251,929 closures, 3.06T nodes searched
Proof health & closures by source
Proof health · median disproof number on the AND frontier: 72 over 203 open obligations, of which 37 (18.2%) 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 12.9m (median of 63) · measured at 2026-10-30 16:00 UTC
Closures by source, last 24h (251873 of 251873 labelled): USER 99.8% (251309) · FILL 0.2% (505) · AUTO 0.0% (0) · SOLVE 0.0% (0) · NONE 0.0% (59) · last 7d (1387856 of 1387912): USER 98.1% (1361413) · FILL 0.7% (9638) · AUTO 1.2% (16257) · SOLVE 0.0% (0) · NONE 0.0% (548). Labelling started at deploy: closures older than that carry no source and are counted in none of the shares above.

Now analyzing all workers

Up next

Play to explore drag a piece or click two squares

Keyboard move list

First moves from the starting position

movestateevalvisits
g1f3unsolved11692
g1h3unsolved7972
e2e3unsolved4693
e2e4unsolved4102
d2d4unsolved4052
b1c3unsolved1422
b1a3unsolved03
c2c3unsolved02
g2g3unsolved02
b2b4unsolved-593
h2h3unsolved-972
d2d3unsolved-982
a2a3unsolved-1002
f2f3unsolved-1173
b2b3unsolved-1441
f2f4unsolved-2603
h2h4unsolved-5002
a2a4unsolved-5142
g2g4unsolved-6042
c2c4unsolved-7003

Best and worst values over time, and the main line

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
1BManBJ
54.7% of the fleet
1.67T5,752
2Torom
16.7% of the fleet
511.12B3,308
3RickEdinson
14.7% of the fleet
450.29B2,998
4MoNiKaMaDnEsS
13.8% of the fleet
421.21B3,322
5soothdest
<0.1% of the fleet
896.0M7
6NeoArcturus
<0.1% of the fleet
384.4M3

6 accounts · 3.06T nodes searched by the whole fleet.

All time

ContributorNodesAnalyses
1NitroColoraze
23.6% of the fleet
90.30T751,082
2BManBJ
20.0% of the fleet
76.43T521,846
3Torom
13.2% of the fleet
50.55T363,522
4tenzink
11.2% of the fleet
42.83T349,427
5auranvesdranor
8.2% of the fleet
31.40T228,002
6RickEdinson
5.4% of the fleet
20.67T135,577
7randomchampgamer
5.2% of the fleet
19.85T140,897
8MoNiKaMaDnEsS
3.2% of the fleet
12.23T84,529
9JackIV
2.6% of the fleet
10.06T67,859
10gannet
1.9% of the fleet
7.24T46,848

and 25 more.

35 accounts · 382.24T 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 23 proposals · see every proposal

Milestones