AtomicDB

Sign in Register
101.7M
positions
21.4M
practically solved
371.36T
engine nodes
2.8M
analyses
376
in queue
5
active workers
28
active cores
27.3M
nodes / sec
9.2
positions / min
107
proof number
4,824
disproof number
Root conquest: 0/20 first moves solved · 21.0% of tree positions solved · last 24h: 122,803 closures, 4.54T nodes searched
Proof health & closures by source
Proof health · median disproof number on the AND frontier: 71 over 200 open obligations, of which 36 (18.0%) 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 58s (median of 1) · measured at 2026-10-27 19:00 UTC
Closures by source, last 24h (122767 of 122767 labelled): USER 90.5% (111129) · FILL 1.1% (1378) · AUTO 8.3% (10213) · SOLVE 0.0% (0) · NONE 0.0% (47) · last 7d (3584761 of 3584797): USER 99.2% (3557379) · FILL 0.2% (8575) · AUTO 0.5% (18342) · SOLVE 0.0% (0) · NONE 0.0% (465). 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
g1f3unsolved12002
g1h3unsolved8202
e2e3unsolved4693
d2d4unsolved4052
e2e4unsolved4012
b1c3unsolved1382
b1a3unsolved03
c2c3unsolved02
g2g3unsolved02
b2b4unsolved-593
h2h3unsolved-972
d2d3unsolved-982
a2a3unsolved-1002
f2f3unsolved-1173
b2b3unsolved-1441
f2f4unsolved-2603
h2h4unsolved-5002
a2a4unsolved-5142
g2g4unsolved-6042
c2c4unsolved-7003

Best and worst values over time, and the main line

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
46.2% of the fleet
2.10T13,952
2BManBJ
38.4% of the fleet
1.74T10,477
3RickEdinson
10.8% of the fleet
492.92B2,867
4MoNiKaMaDnEsS
4.6% of the fleet
209.18B1,357

4 accounts · 4.54T nodes searched by the whole fleet.

All time

ContributorNodesAnalyses
1NitroColoraze
24.3% of the fleet
90.30T751,082
2BManBJ
19.3% of the fleet
71.85T504,298
3Torom
12.5% of the fleet
46.50T337,663
4tenzink
11.5% of the fleet
42.83T349,427
5auranvesdranor
8.5% of the fleet
31.40T228,002
6randomchampgamer
5.3% of the fleet
19.85T140,897
7RickEdinson
5.2% of the fleet
19.29T126,948
8MoNiKaMaDnEsS
3.1% of the fleet
11.40T78,727
9JackIV
2.7% of the fleet
10.06T67,859
10gannet
1.9% of the fleet
7.24T46,848

and 25 more.

35 accounts · 371.41T 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