AtomicDB

Sign in Register
79.8M
positions
15.4M
practically solved
288.28T
engine nodes
2.2M
analyses
5,011
in queue
15
active workers
74
active cores
34.2M
nodes / sec
36.9
positions / min
82
proof number
4,106
disproof number
Root conquest: 0/20 first moves solved · 19.3% of tree positions solved · last 24h: 213,228 closures, 3.55T nodes searched
Proof health & closures by source
Proof health · median disproof number on the AND frontier: 70 over 218 open obligations, of which 40 (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 5.1m (median of 93) · measured at 2026-10-09 15:00 UTC
Closures by source, last 24h (213189 of 213189 labelled): USER 100.0% (213131) · FILL 0.0% (0) · AUTO 0.0% (0) · SOLVE 0.0% (0) · NONE 0.0% (58) · last 7d (1685089 of 1685128): USER 99.0% (1667909) · FILL 0.1% (2071) · AUTO 0.7% (11952) · SOLVE 0.0% (0) · NONE 0.2% (3157). 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
g1f3unsolved10782
g1h3unsolved7702
e2e3unsolved5053
e2e4unsolved4002
d2d4unsolved3792
b1c3unsolved1272
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
1.51T10,001
2Torom
23.4% of the fleet
830.53B5,401
3randomchampgamer
18.7% of the fleet
661.74B4,684
4RickEdinson
12.5% of the fleet
442.74B2,753
5MoNiKaMaDnEsS
2.8% of the fleet
100.09B608
6soothdest
<0.1% of the fleet
8.0M17

6 accounts · 3.55T nodes searched by the whole fleet.

All time

ContributorNodesAnalyses
1NitroColoraze
31.3% of the fleet
90.30T751,082
2BManBJ
15.2% of the fleet
43.99T308,001
3tenzink
14.8% of the fleet
42.83T349,427
4auranvesdranor
10.9% of the fleet
31.40T228,002
5randomchampgamer
5.8% of the fleet
16.69T122,360
6RickEdinson
3.8% of the fleet
11.09T73,954
7JackIV
3.5% of the fleet
10.06T67,859
8Torom
2.8% of the fleet
8.06T60,229
9gannet
2.5% of the fleet
7.24T46,848
10MoNiKaMaDnEsS
2.2% of the fleet
6.25T42,289

and 25 more.

35 accounts · 288.51T 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 22 proposals · see every proposal

Milestones