AtomicDB

Sign in Register
83.3M
positions
15.9M
practically solved
305.83T
engine nodes
2.3M
analyses
28
in queue
6
active workers
42
active cores
30.5M
nodes / sec
5.7
positions / min
85
proof number
4,551
disproof number
Root conquest: 0/20 first moves solved · 19.1% of tree positions solved · last 24h: 107,670 closures, 3.77T nodes searched
Proof health & closures by source
Proof health · median disproof number on the AND frontier: 70 over 216 open obligations, of which 41 (19.0%) 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 3.8h (median of 1) · measured at 2026-10-13 16:00 UTC
Closures by source, last 24h (107670 of 107670 labelled): USER 99.4% (107040) · FILL 0.5% (553) · AUTO 0.0% (16) · SOLVE 0.0% (0) · NONE 0.1% (61) · last 7d (1353319 of 1353319): USER 97.6% (1320217) · FILL 0.2% (3195) · AUTO 2.2% (29497) · SOLVE 0.0% (0) · NONE 0.0% (410). 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
g1f3unsolved11112
g1h3unsolved7372
e2e3unsolved5053
e2e4unsolved4002
d2d4unsolved3952
b1c3unsolved1272
c2c3unsolved02
g2g3unsolved02
b1a3unsolved03
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
36.6% of the fleet
1.38T8,126
2Torom
34.3% of the fleet
1.29T8,506
3RickEdinson
11.3% of the fleet
425.14B2,557
4MoNiKaMaDnEsS
10.2% of the fleet
384.30B2,296
5randomchampgamer
7.6% of the fleet
286.68B1,501

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

All time

ContributorNodesAnalyses
1NitroColoraze
29.5% of the fleet
90.30T751,082
2BManBJ
16.1% of the fleet
49.21T340,677
3tenzink
14.0% of the fleet
42.83T349,427
4auranvesdranor
10.3% of the fleet
31.40T228,002
5randomchampgamer
6.0% of the fleet
18.45T132,242
6Torom
5.1% of the fleet
15.70T113,354
7RickEdinson
4.2% of the fleet
12.77T84,169
8JackIV
3.3% of the fleet
10.06T67,859
9MoNiKaMaDnEsS
2.4% of the fleet
7.30T49,082
10gannet
2.4% of the fleet
7.24T46,848

and 25 more.

35 accounts · 305.84T 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