AtomicDB

Sign in Register
78.4M
positions
15.1M
practically solved
282.44T
engine nodes
2.2M
analyses
15
in queue
15
active workers
74
active cores
12.2M
nodes / sec
39.8
positions / min
82
proof number
3,795
disproof number
Root conquest: 0/20 first moves solved · 19.2% of tree positions solved · last 24h: 438,379 closures, 5.16T nodes searched
Proof health & closures by source
Proof health · median disproof number on the AND frontier: 70 over 217 open obligations, of which 41 (18.9%) 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 2.6h (median of 40) · measured at 2026-10-08 06:00 UTC
Closures by source, last 24h (438344 of 438347 labelled): USER 99.6% (436658) · FILL 0.3% (1374) · AUTO 0.0% (215) · SOLVE 0.0% (0) · NONE 0.0% (97) · last 7d (2011554 of 2011557): USER 99.7% (2005110) · FILL 0.1% (1788) · AUTO 0.0% (272) · SOLVE 0.0% (0) · NONE 0.2% (4384). 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
g1f3unsolved10542
g1h3unsolved7372
e2e3unsolved5053
e2e4unsolved4002
d2d4unsolved3602
b1c3unsolved1252
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
1Torom
34.9% of the fleet
1.80T11,465
2BManBJ
30.2% of the fleet
1.56T10,580
3randomchampgamer
12.8% of the fleet
658.24B4,989
4RickEdinson
8.9% of the fleet
461.57B3,099
5tenzink
8.5% of the fleet
438.63B3,052
6MoNiKaMaDnEsS
4.7% of the fleet
243.57B1,723

6 accounts · 5.16T nodes searched by the whole fleet.

All time

ContributorNodesAnalyses
1NitroColoraze
31.9% of the fleet
90.30T751,082
2tenzink
15.1% of the fleet
42.83T349,427
3BManBJ
14.8% of the fleet
41.95T293,742
4auranvesdranor
11.1% of the fleet
31.40T228,002
5randomchampgamer
5.6% of the fleet
15.79T116,031
6RickEdinson
3.7% of the fleet
10.50T70,000
7JackIV
3.6% of the fleet
10.06T67,859
8gannet
2.6% of the fleet
7.24T46,848
9MoNiKaMaDnEsS
2.2% of the fleet
6.09T40,882
10Torom
2.1% of the fleet
5.99T43,169

and 25 more.

35 accounts · 282.75T 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