AtomicDB

Sign in Register
72.3M
positions
13.4M
practically solved
258.94T
engine nodes
2.0M
analyses
8,878
in queue
12
active workers
78
active cores
33.6M
nodes / sec
25.1
positions / min
82
proof number
3,797
disproof number
Root conquest: 0/20 first moves solved · 18.5% of tree positions solved · last 24h: 491,175 closures, 5.07T nodes searched
Proof health & closures by source
Proof health · median disproof number on the AND frontier: 79 over 203 open obligations, of which 33 (16.3%) 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 35.7m (median of 160) · measured at 2026-10-02 06:00 UTC
Closures by source, last 24h (491139 of 491139 labelled): USER 99.8% (490181) · FILL 0.0% (0) · AUTO 0.0% (0) · SOLVE 0.0% (0) · NONE 0.2% (958) · last 7d (2989552 of 2989588): USER 98.5% (2944707) · FILL 0.3% (8795) · AUTO 1.1% (32065) · SOLVE 0.0% (0) · NONE 0.1% (3985). 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
g1f3unsolved11012
g1h3unsolved7462
e2e3unsolved4883
d2d4unsolved4392
e2e4unsolved4172
b1c3unsolved1312
c2c3unsolved02
g2g3unsolved02
b2b4unsolved03
b1a3unsolved03
h2h3unsolved-972
d2d3unsolved-982
a2a3unsolved-1002
f2f3unsolved-1173
b2b3unsolved-1441
f2f4unsolved-3053
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
29.8% of the fleet
1.51T11,942
2auranvesdranor
20.7% of the fleet
1.05T8,028
3tenzink
12.9% of the fleet
652.56B4,744
4randomchampgamer
12.3% of the fleet
625.18B4,884
5MoNiKaMaDnEsS
9.1% of the fleet
460.94B3,539
6RickEdinson
8.9% of the fleet
449.56B3,265
7gannet
3.9% of the fleet
198.36B1,541
8quasa
2.4% of the fleet
120.64B937

8 accounts · 5.07T nodes searched by the whole fleet.

All time

ContributorNodesAnalyses
1NitroColoraze
34.9% of the fleet
90.30T751,082
2tenzink
15.0% of the fleet
38.97T323,108
3BManBJ
12.8% of the fleet
33.08T232,524
4auranvesdranor
11.9% of the fleet
30.81T223,443
5randomchampgamer
4.6% of the fleet
11.80T87,652
6JackIV
3.9% of the fleet
10.06T67,859
7RickEdinson
3.0% of the fleet
7.67T51,249
8gannet
2.8% of the fleet
7.24T46,848
9MoNiKaMaDnEsS
2.0% of the fleet
5.17T34,516
10NeoArcturus
1.6% of the fleet
4.09T16,758

and 25 more.

35 accounts · 259.08T 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