AtomicDB

Sign in Register
101.1M
positions
21.2M
practically solved
368.32T
engine nodes
2.8M
analyses
2,039
in queue
6
active workers
36
active cores
21.1M
nodes / sec
6.9
positions / min
107
proof number
4,809
disproof number
Root conquest: 0/20 first moves solved · 21.0% of tree positions solved · last 24h: 170,990 closures, 3.74T nodes searched
Proof health & closures by source
Proof health · median disproof number on the AND frontier: 71 over 202 open obligations, of which 37 (18.3%) 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 1.6m (median of 7) · measured at 2026-10-27 03:00 UTC
Closures by source, last 24h (170990 of 170990 labelled): USER 95.5% (163246) · FILL 0.7% (1235) · AUTO 3.8% (6479) · SOLVE 0.0% (0) · NONE 0.0% (30) · last 7d (3888769 of 3888769): USER 99.3% (3862014) · FILL 0.3% (11599) · AUTO 0.4% (14683) · SOLVE 0.0% (0) · NONE 0.0% (473). 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
g1f3unsolved11842
g1h3unsolved8102
e2e3unsolved4693
d2d4unsolved4012
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
1BManBJ
47.3% of the fleet
1.77T9,848
2Torom
27.3% of the fleet
1.02T6,368
3MoNiKaMaDnEsS
12.9% of the fleet
483.15B2,742
4RickEdinson
12.5% of the fleet
467.19B2,667

4 accounts · 3.74T nodes searched by the whole fleet.

All time

ContributorNodesAnalyses
1NitroColoraze
24.5% of the fleet
90.30T751,082
2BManBJ
19.2% of the fleet
70.63T496,919
3Torom
12.3% of the fleet
45.21T328,657
4tenzink
11.6% of the fleet
42.83T349,427
5auranvesdranor
8.5% of the fleet
31.40T228,002
6randomchampgamer
5.4% of the fleet
19.85T140,897
7RickEdinson
5.1% of the fleet
18.94T124,909
8MoNiKaMaDnEsS
3.0% of the fleet
11.20T77,370
9JackIV
2.7% of the fleet
10.06T67,859
10gannet
2.0% of the fleet
7.24T46,848

and 25 more.

35 accounts · 368.34T 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