AtomicDB

Sign in Register
76.2M
positions
14.4M
practically solved
274.34T
engine nodes
2.1M
analyses
3,334
in queue
9
active workers
48
active cores
27.3M
nodes / sec
15.5
positions / min
82
proof number
3,796
disproof number
Root conquest: 0/20 first moves solved · 18.9% of tree positions solved · last 24h: 245,652 closures, 3.77T nodes searched
Proof health & closures by source
Proof health · median disproof number on the AND frontier: 69 over 219 open obligations, of which 42 (19.2%) 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 1.9h (median of 1) · measured at 2026-10-06 13:00 UTC
Closures by source, last 24h (245539 of 245539 labelled): USER 99.8% (245110) · FILL 0.1% (294) · AUTO 0.0% (0) · SOLVE 0.0% (0) · NONE 0.1% (135) · last 7d (2104294 of 2104407): USER 99.8% (2099236) · FILL 0.0% (294) · AUTO 0.0% (0) · SOLVE 0.0% (0) · NONE 0.2% (4764). 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
g1f3unsolved11012
g1h3unsolved7692
e2e3unsolved5053
d2d4unsolved4412
e2e4unsolved4182
b1c3unsolved1052
b1a3unsolved03
c2c3unsolved02
g2g3unsolved02
b2b4unsolved-733
h2h3unsolved-972
d2d3unsolved-982
a2a3unsolved-1002
f2f3unsolved-1173
b2b3unsolved-1441
f2f4unsolved-2603
h2h4unsolved-5002
a2a4unsolved-5142
g2g4unsolved-6042
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
1BManBJ
42.6% of the fleet
1.60T9,445
2tenzink
18.3% of the fleet
688.69B3,917
3randomchampgamer
17.2% of the fleet
646.45B3,736
4RickEdinson
12.8% of the fleet
482.86B2,736
5MoNiKaMaDnEsS
9.2% of the fleet
345.08B2,099
6soothdest
<0.1% of the fleet
474.8M26

6 accounts · 3.77T nodes searched by the whole fleet.

All time

ContributorNodesAnalyses
1NitroColoraze
32.9% of the fleet
90.30T751,082
2tenzink
15.3% of the fleet
41.92T343,316
3BManBJ
14.3% of the fleet
39.30T276,022
4auranvesdranor
11.4% of the fleet
31.40T228,002
5randomchampgamer
5.4% of the fleet
14.68T108,144
6JackIV
3.7% of the fleet
10.06T67,859
7RickEdinson
3.5% of the fleet
9.71T64,888
8gannet
2.6% of the fleet
7.24T46,848
9MoNiKaMaDnEsS
2.1% of the fleet
5.77T38,603
10NeoArcturus
1.5% of the fleet
4.09T16,758

and 25 more.

35 accounts · 274.38T 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