AtomicDB

Sign in Register
67.9M
positions
12.2M
practically solved
244.38T
engine nodes
1.9M
analyses
4,910
in queue
18
active workers
128
active cores
26.4M
nodes / sec
40.5
positions / min
57
proof number
3,808
disproof number
Root conquest: 0/20 first moves solved · 18.0% of tree positions solved · last 24h: 321,098 closures, 6.77T nodes searched
Proof health & closures by source
Proof health · median disproof number on the AND frontier: 81 over 199 open obligations, of which 32 (16.1%) 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 2.5m (median of 90) · measured at 2026-09-29 23:00 UTC
Closures by source, last 24h (320993 of 321049 labelled): USER 99.9% (320660) · FILL 0.0% (0) · AUTO 0.0% (0) · SOLVE 0.0% (0) · NONE 0.1% (333) · last 7d (1902817 of 1902836): USER 97.7% (1859259) · FILL 0.5% (8795) · AUTO 1.7% (32065) · SOLVE 0.0% (0) · NONE 0.1% (2698). 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
g1f3unsolved10502
g1h3unsolved7602
e2e3unsolved4533
d2d4unsolved3922
e2e4unsolved3922
b1c3unsolved1422
c2c3unsolved02
g2g3unsolved02
b2b4unsolved03
b1a3unsolved03
h2h3unsolved-982
a2a3unsolved-1032
d2d3unsolved-1162
f2f3unsolved-1173
b2b3unsolved-1191
f2f4unsolved-2993
h2h4unsolved-4972
a2a4unsolved-5102
g2g4unsolved-6002
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
1gannet
37.4% of the fleet
2.54T13,586
2BManBJ
20.9% of the fleet
1.42T10,655
3auranvesdranor
15.0% of the fleet
1.01T7,770
4randomchampgamer
8.4% of the fleet
569.72B4,534
5tenzink
8.0% of the fleet
542.73B3,752
6RickEdinson
5.8% of the fleet
390.66B2,538
7MoNiKaMaDnEsS
4.1% of the fleet
278.53B2,074
8rhaxier
0.3% of the fleet
23.56B190
9soothdest
<0.1% of the fleet
1.31B21

9 accounts · 6.77T nodes searched by the whole fleet.

All time

ContributorNodesAnalyses
1NitroColoraze
36.9% of the fleet
90.30T751,082
2tenzink
15.3% of the fleet
37.53T312,627
3BManBJ
12.1% of the fleet
29.65T205,645
4auranvesdranor
11.6% of the fleet
28.39T205,078
5randomchampgamer
4.2% of the fleet
10.37T76,271
6JackIV
4.1% of the fleet
10.06T67,859
7RickEdinson
2.8% of the fleet
6.89T45,648
8MoNiKaMaDnEsS
1.8% of the fleet
4.42T28,639
9NeoArcturus
1.7% of the fleet
4.09T16,758
10ijh
1.5% of the fleet
3.57T37,348

and 25 more.

35 accounts · 244.49T 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