AtomicDB

Sign in Register
56.0M
positions
8.9M
practically solved
202.66T
engine nodes
1.6M
analyses
3,009
in queue
13
active workers
88
active cores
2.6M
nodes / sec
31.5
positions / min
131
proof number
3,717
disproof number
Root conquest: 0/20 first moves solved · 15.9% of tree positions solved · last 24h: 409,861 closures, 5.71T nodes searched
Proof health & closures by source
Proof health · median disproof number on the AND frontier: 71 over 169 open obligations, of which 31 (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 6.2h (median of 140) · measured at 2026-09-18 07:00 UTC
Closures by source, last 24h (409861 of 409861 labelled): USER 99.9% (409436) · FILL 0.0% (0) · AUTO 0.0% (0) · SOLVE 0.0% (0) · NONE 0.1% (425) · last 7d (1577047 of 1577047): USER 97.4% (1535510) · FILL 0.4% (5611) · AUTO 2.0% (32114) · SOLVE 0.0% (0) · NONE 0.2% (3812). 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
g1f3unsolved10722
g1h3unsolved8202
e2e3unsolved5053
e2e4unsolved4152
d2d4unsolved4082
b1c3unsolved712
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
1Torom
25.7% of the fleet
1.47T10,192
2BManBJ
24.6% of the fleet
1.40T10,776
3auranvesdranor
23.4% of the fleet
1.34T10,123
4tenzink
11.2% of the fleet
637.60B3,716
5randomchampgamer
10.6% of the fleet
603.05B4,809
6MoNiKaMaDnEsS
4.5% of the fleet
256.38B1,645

6 accounts · 5.71T nodes searched by the whole fleet.

All time

ContributorNodesAnalyses
1NitroColoraze
39.3% of the fleet
79.65T677,611
2tenzink
16.6% of the fleet
33.73T287,724
3auranvesdranor
10.7% of the fleet
21.76T155,693
4BManBJ
10.4% of the fleet
21.14T142,868
5JackIV
3.9% of the fleet
7.94T56,572
6randomchampgamer
3.4% of the fleet
6.98T49,756
7RickEdinson
3.1% of the fleet
6.32T41,667
8NeoArcturus
2.0% of the fleet
4.09T16,751
9MoNiKaMaDnEsS
1.8% of the fleet
3.71T23,623
10ijh
1.8% of the fleet
3.57T37,348

and 22 more.

32 accounts · 202.84T 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