AtomicDB

Sign in Register
58.4M
positions
9.6M
practically solved
210.44T
engine nodes
1.7M
analyses
12,423
in queue
12
active workers
84
active cores
15.3M
nodes / sec
28.2
positions / min
131
proof number
3,776
disproof number
Root conquest: 0/20 first moves solved · 16.5% of tree positions solved · last 24h: 604,002 closures, 6.61T nodes searched
Proof health & closures by source
Proof health · median disproof number on the AND frontier: 80 over 168 open obligations, of which 28 (16.7%) 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 14.5m (median of 118) · measured at 2026-09-19 15:00 UTC
Closures by source, last 24h (603954 of 603967 labelled): USER 99.9% (603207) · FILL 0.0% (0) · AUTO 0.0% (0) · SOLVE 0.0% (0) · NONE 0.1% (747) · last 7d (2033930 of 2033965): USER 98.6% (2005439) · FILL 0.2% (3608) · AUTO 1.0% (21080) · SOLVE 0.0% (0) · NONE 0.2% (3803). 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
g1f3unsolved10682
g1h3unsolved7202
e2e3unsolved5053
d2d4unsolved4352
e2e4unsolved4172
b1c3unsolved722
c2c3unsolved02
g2g3unsolved02
b2b4unsolved03
b1a3unsolved03
h2h3unsolved-1002
a2a3unsolved-1032
f2f3unsolved-1102
d2d3unsolved-1162
b2b3unsolved-1191
f2f4unsolved-2233
h2h4unsolved-5002
a2a4unsolved-5022
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
1auranvesdranor
24.0% of the fleet
1.59T12,095
2BManBJ
21.9% of the fleet
1.44T10,538
3JackIV
15.9% of the fleet
1.05T5,699
4Torom
15.4% of the fleet
1.02T7,308
5tenzink
9.0% of the fleet
594.16B3,821
6randomchampgamer
8.5% of the fleet
563.13B4,544
7quasa
3.2% of the fleet
210.39B1,481
8MoNiKaMaDnEsS
1.9% of the fleet
127.53B738
9soothdest
0.2% of the fleet
10.29B79
10NeoArcturus
<0.1% of the fleet
640.0M5

10 accounts · 6.61T nodes searched by the whole fleet.

All time

ContributorNodesAnalyses
1NitroColoraze
37.8% of the fleet
79.65T677,611
2tenzink
16.4% of the fleet
34.49T292,612
3auranvesdranor
11.3% of the fleet
23.76T170,922
4BManBJ
10.9% of the fleet
23.01T156,439
5JackIV
4.3% of the fleet
9.00T62,271
6randomchampgamer
3.7% of the fleet
7.77T55,780
7RickEdinson
3.0% of the fleet
6.32T41,667
8NeoArcturus
1.9% of the fleet
4.09T16,756
9MoNiKaMaDnEsS
1.8% of the fleet
3.84T24,377
10ijh
1.7% of the fleet
3.57T37,348

and 22 more.

32 accounts · 210.68T 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 19 proposals · see every proposal

Milestones