AtomicDB

Sign in Register
100.6M
positions
21.2M
practically solved
365.60T
engine nodes
2.8M
analyses
10
in queue
6
active workers
36
active cores
37.7M
nodes / sec
7.9
positions / min
107
proof number
4,730
disproof number
Root conquest: 0/20 first moves solved · 21.1% of tree positions solved · last 24h: 244,058 closures, 2.65T nodes searched
Proof health & closures by source
Proof health · median disproof number on the AND frontier: 71 over 201 open obligations, of which 37 (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 1.5h (median of 6) · measured at 2026-10-26 11:00 UTC
Closures by source, last 24h (244058 of 244058 labelled): USER 97.1% (236956) · FILL 1.2% (2891) · AUTO 1.7% (4156) · SOLVE 0.0% (0) · NONE 0.0% (55) · last 7d (4070648 of 4070648): USER 99.5% (4049635) · FILL 0.3% (11332) · AUTO 0.2% (9206) · SOLVE 0.0% (0) · NONE 0.0% (475). 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
g1f3unsolved12412
g1h3unsolved7922
e2e3unsolved4693
d2d4unsolved4012
e2e4unsolved4012
b1c3unsolved1382
b1a3unsolved03
c2c3unsolved02
g2g3unsolved02
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
1BManBJ
68.0% of the fleet
1.80T10,019
2RickEdinson
17.8% of the fleet
470.53B2,717
3MoNiKaMaDnEsS
14.2% of the fleet
375.36B2,320

3 accounts · 2.65T nodes searched by the whole fleet.

All time

ContributorNodesAnalyses
1NitroColoraze
24.7% of the fleet
90.30T751,082
2BManBJ
19.0% of the fleet
69.48T490,490
3Torom
12.1% of the fleet
44.19T322,289
4tenzink
11.7% of the fleet
42.83T349,427
5auranvesdranor
8.6% of the fleet
31.40T228,002
6randomchampgamer
5.4% of the fleet
19.85T140,897
7RickEdinson
5.1% of the fleet
18.63T123,114
8MoNiKaMaDnEsS
3.0% of the fleet
10.99T76,281
9JackIV
2.8% of the fleet
10.06T67,859
10gannet
2.0% of the fleet
7.24T46,848

and 25 more.

35 accounts · 365.65T 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