AtomicDB

Sign in Register
87.7M
positions
16.7M
practically solved
323.21T
engine nodes
2.5M
analyses
1,392
in queue
14
active workers
68
active cores
35.7M
nodes / sec
42.9
positions / min
145
proof number
4,661
disproof number
Root conquest: 0/20 first moves solved · 19.0% of tree positions solved · last 24h: 298,237 closures, 6.00T nodes searched
Proof health & closures by source
Proof health · median disproof number on the AND frontier: 70 over 206 open obligations, of which 38 (18.4%) 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 3.4m (median of 108) · measured at 2026-10-19 04:00 UTC
Closures by source, last 24h (298236 of 298236 labelled): USER 99.8% (297562) · FILL 0.2% (616) · AUTO 0.0% (0) · SOLVE 0.0% (0) · NONE 0.0% (58) · last 7d (857540 of 857541): USER 91.3% (782880) · FILL 0.9% (7355) · AUTO 7.8% (66745) · SOLVE 0.0% (0) · NONE 0.1% (560). 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
g1f3unsolved9832
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
1Torom
61.9% of the fleet
3.72T26,224
2BManBJ
27.8% of the fleet
1.67T12,369
3RickEdinson
7.8% of the fleet
467.06B2,990
4MoNiKaMaDnEsS
2.0% of the fleet
117.83B894
5soothdest
0.5% of the fleet
31.73B201

5 accounts · 6.00T nodes searched by the whole fleet.

All time

ContributorNodesAnalyses
1NitroColoraze
27.9% of the fleet
90.30T751,082
2BManBJ
17.4% of the fleet
56.25T396,027
3tenzink
13.2% of the fleet
42.83T349,427
4auranvesdranor
9.7% of the fleet
31.40T228,002
5Torom
6.5% of the fleet
21.06T149,954
6randomchampgamer
6.1% of the fleet
19.85T140,897
7RickEdinson
4.7% of the fleet
15.20T101,510
8JackIV
3.1% of the fleet
10.06T67,859
9MoNiKaMaDnEsS
2.7% of the fleet
8.60T59,095
10gannet
2.2% of the fleet
7.24T46,848

and 25 more.

35 accounts · 323.42T 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