AtomicDB

Sign in Register
85.9M
positions
16.3M
practically solved
315.83T
engine nodes
2.4M
analyses
63
in queue
13
active workers
60
active cores
0
nodes / sec
25.4
positions / min
151
proof number
4,667
disproof number
Root conquest: 0/20 first moves solved · 19.0% of tree positions solved · last 24h: 29,379 closures, 2.64T nodes searched
Proof health & closures by source
Proof health · median disproof number on the AND frontier: 70 over 210 open obligations, of which 38 (18.1%) 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 1.8m (median of 14) · measured at 2026-10-17 23:00 UTC
Closures by source, last 24h (29379 of 29379 labelled): USER 91.4% (26863) · FILL 2.6% (776) · AUTO 5.6% (1644) · SOLVE 0.0% (0) · NONE 0.3% (96) · last 7d (651441 of 651441): USER 86.5% (563317) · FILL 1.1% (7116) · AUTO 12.4% (80477) · SOLVE 0.0% (0) · NONE 0.1% (531). 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
g1f3unsolved11342
g1h3unsolved8212
e2e3unsolved5053
d2d4unsolved4002
e2e4unsolved4002
b1c3unsolved1382
c2c3unsolved02
g2g3unsolved02
b1a3unsolved03
b2b4unsolved-653
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
51.5% of the fleet
1.36T6,828
2Torom
25.2% of the fleet
664.85B4,397
3RickEdinson
18.3% of the fleet
484.16B2,304
4MoNiKaMaDnEsS
5.0% of the fleet
133.30B591
5soothdest
<0.1% of the fleet
256.7M3

5 accounts · 2.64T nodes searched by the whole fleet.

All time

ContributorNodesAnalyses
1NitroColoraze
28.6% of the fleet
90.30T751,082
2BManBJ
17.2% of the fleet
54.23T381,785
3tenzink
13.6% of the fleet
42.83T349,427
4auranvesdranor
9.9% of the fleet
31.40T228,002
5randomchampgamer
6.3% of the fleet
19.85T140,897
6Torom
5.2% of the fleet
16.36T117,749
7RickEdinson
4.6% of the fleet
14.63T97,908
8JackIV
3.2% of the fleet
10.06T67,859
9MoNiKaMaDnEsS
2.7% of the fleet
8.48T58,201
10gannet
2.3% of the fleet
7.24T46,848

and 25 more.

35 accounts · 315.98T 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