102.6M
positions
21.6M
practically solved
376.08T
engine nodes
2.8M
analyses
1,420
in queue
active workers
28
active cores
25.0M
nodes / sec
6.7
positions / min
107
proof number
4,824
disproof number
Root conquest: 0/20 first moves solved · 21.0% of tree positions solved · last 24h: 149,980 closures, 3.85T nodes searched
Proof health & closures by source
Proof health · median disproof number on the AND frontier: 72 over 203 open obligations, of which 37 (18.2%) 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 4.1m (median of 109) · measured at 2026-10-29 02:00 UTC
Closures by source, last 24h (149980 of 149980 labelled): USER 99.7% (149503) · FILL 0.2% (330) · AUTO 0.0% (0) · SOLVE 0.0% (0) · NONE 0.1% (147) · last 7d (2586314 of 2586314): USER 98.9% (2558937) · FILL 0.3% (8825) · AUTO 0.7% (18022) · SOLVE 0.0% (0) · NONE 0.0% (530). Labelling started at deploy: closures older than that carry no source and are counted in none of the shares above.
Now analyzing all workers
- 1. Nf3 d6 2. Ng5 f5 … f4 11. Nxh8 Na6 12. a3 Nb4 (User) · 512.0M nodes · BManBJ-Blake-atomicdb#0
- 1. Nf3 d6 2. Ng5 f5 … f4 11. Nxh8 Na6 12. a3 e5 (User) · 512.0M nodes · BManBJ-Blake-atomicdb#1
- 1. Nf3 d6 2. Ng5 f5 … f4 11. Nxh8 Na6 12. a3 Nc5 (User) · 512.0M nodes · BManBJ-Blake-atomicdb#2
- 1. Nf3 d6 2. Ng5 f5 … f4 11. Nxh8 Na6 12. a3 b6 (User) · 512.0M nodes · BManBJ-Laptop-Blake-atomicdb
- 1. Nh3 f5 2. e3 g6 … 13. h3 a5 14. O-O a4 15. f4 (User) · 128.0M nodes · RickEdinson-MSI-atomicdb
Play to explore drag a piece or click two squares
Keyboard move list
First moves from the starting position
| move | state | eval | visits | |
|---|---|---|---|---|
| g1f3 | unsolved | 1173 | 2 | |
| g1h3 | unsolved | 820 | 2 | |
| e2e3 | unsolved | 469 | 3 | |
| d2d4 | unsolved | 405 | 2 | |
| e2e4 | unsolved | 401 | 2 | |
| b1c3 | unsolved | 138 | 2 | |
| b1a3 | unsolved | 0 | 3 | |
| c2c3 | unsolved | 0 | 2 | |
| g2g3 | unsolved | 0 | 2 | |
| b2b4 | unsolved | -59 | 3 | |
| h2h3 | unsolved | -97 | 2 | |
| d2d3 | unsolved | -98 | 2 | |
| a2a3 | unsolved | -100 | 2 | |
| f2f3 | unsolved | -117 | 3 | |
| b2b3 | unsolved | -144 | 1 | |
| f2f4 | unsolved | -260 | 3 | |
| h2h4 | unsolved | -500 | 2 | |
| a2a4 | unsolved | -514 | 2 | |
| g2g4 | unsolved | -604 | 2 | |
| c2c4 | unsolved | -700 | 3 |
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
| Place | Contributor | Nodes | Analyses |
|---|---|---|---|
| 1 | Torom 47.7% of the fleet | 1.84T | 12,334 |
| 2 | BManBJ 36.1% of the fleet | 1.39T | 5,430 |
| 3 | RickEdinson 12.9% of the fleet | 496.87B | 2,972 |
| 4 | MoNiKaMaDnEsS 3.3% of the fleet | 127.82B | 771 |
4 accounts · 3.85T nodes searched by the whole fleet.
All time
| Place | Contributor | Nodes | Analyses |
|---|---|---|---|
| 1 | NitroColoraze 24.0% of the fleet | 90.30T | 751,082 |
| 2 | BManBJ 19.6% of the fleet | 73.78T | 512,749 |
| 3 | Torom 12.9% of the fleet | 48.34T | 349,997 |
| 4 | tenzink 11.4% of the fleet | 42.83T | 349,427 |
| 5 | auranvesdranor 8.3% of the fleet | 31.40T | 228,002 |
| 6 | RickEdinson 5.3% of the fleet | 19.93T | 130,754 |
| 7 | randomchampgamer 5.3% of the fleet | 19.85T | 140,897 |
| 8 | MoNiKaMaDnEsS 3.1% of the fleet | 11.71T | 80,608 |
| 9 | JackIV 2.7% of the fleet | 10.06T | 67,859 |
| 10 | gannet 1.9% of the fleet | 7.24T | 46,848 |
and 25 more.
35 accounts · 376.13T 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.
- Should be easiest proof for nf3 e51. Nf3 e5 2. e4proposed by quasa · 18 votes
- Pls nh4 is more solvable than c31. Nf3 f6 2. e4 e6 3. Nc3 c6 4. Nb5 cxb5 5. Bb5 Nc6 6. d4 g6 7. Nh4proposed by 67king · 6 votes
- Is Nh3 h6 e3 e6 Nc3 a draw?1. Nh3 e6 2. e3 h6 3. Nc3proposed by soothdest · 5 votes
- The weaker of the two f-pawn advances for 1. ...d61. Nf3 d6 2. Ng5 f5 3. Nf7 Qd7 4. e4proposed by MoNiKaMaDnEsS · 4 votes
- Refuting 1... d61. Nf3 d6 2. Nc3proposed by randomchampgamer · 3 votes
- Let's solve Qc8 in 2N Nh6 mainline and/or use it as a benchmark1. Nf3 f6 2. e4 e6 3. d4 c6 4. Nc3 Nh6 5. g4 Bb4 6. e5 fxe5 7. Ng5 d5 8. h4 e5 9. Qe2 Nxg4 10. f3 Bg4 11. Bh3 Qc8 12. Bh6proposed by soothdest · 3 votes
Showing the 6 most voted of 23 proposals · see every proposal
Milestones
- Oct 29 02:36 MATE_WITNESS_CERTIFIEDview
… dxe3 d4 Bb4 c3 exd4 O-O Ng4 hxg4 Qd5 f3 O-O cxb4 Re8 Be3 g4 Bc4 gxf3 g4 Re2 Bxd5
… dxe3 d4 Bb4 c3 exd4 O-O Ng4 hxg4 Qd5 f3 O-O cxb4 Re8 Be3 g4 Bc4 gxf3 g4 Re2 Bxd5 - Oct 29 02:36 Solved: BLACK_WIN via MATE_PVview
… dxe3 d4 Bb4 c3 exd4 O-O Ng4 hxg4 Qd5 f3 O-O cxb4 Re8 Be3 g4 Bc4 gxf3 g4 Re2 Rd1 Rg2 Kf1 Rg1 Kf2 Rf1 Ke3 Rf3 Ke2
… dxe3 d4 Bb4 c3 exd4 O-O Ng4 hxg4 Qd5 f3 O-O cxb4 Re8 Be3 g4 Bc4 gxf3 g4 Re2 Rd1 Rg2 Kf1 Rg1 Kf2 Rf1 Ke3 Rf3 Ke2 - Oct 29 02:36 Solved: BLACK_WIN via MATE_PVview
… dxe3 d4 Bb4 c3 exd4 O-O Ng4 hxg4 Qd5 f3 O-O cxb4 Re8 Be3 g4 Bc4 gxf3 g4 Re2 Rd1 Rg2 Kf1 Rg1 Kf2 Rf1 Ke3 Rf3
… dxe3 d4 Bb4 c3 exd4 O-O Ng4 hxg4 Qd5 f3 O-O cxb4 Re8 Be3 g4 Bc4 gxf3 g4 Re2 Rd1 Rg2 Kf1 Rg1 Kf2 Rf1 Ke3 Rf3 - Oct 29 02:36 Solved: BLACK_WIN via MATE_PVview
… dxe3 d4 Bb4 c3 exd4 O-O Ng4 hxg4 Qd5 f3 O-O cxb4 Re8 Be3 g4 Bc4 gxf3 g4 Re2 Rd1 Rg2 Kf1 Rg1 Kf2 Rf1 Ke3
… dxe3 d4 Bb4 c3 exd4 O-O Ng4 hxg4 Qd5 f3 O-O cxb4 Re8 Be3 g4 Bc4 gxf3 g4 Re2 Rd1 Rg2 Kf1 Rg1 Kf2 Rf1 Ke3 - Oct 29 02:36 Solved: BLACK_WIN via MATE_PVview
… dxe3 d4 Bb4 c3 exd4 O-O Ng4 hxg4 Qd5 f3 O-O cxb4 Re8 Be3 g4 Bc4 gxf3 g4 Re2 Rd1 Rg2 Kf1 Rg1 Kf2 Rf1
… dxe3 d4 Bb4 c3 exd4 O-O Ng4 hxg4 Qd5 f3 O-O cxb4 Re8 Be3 g4 Bc4 gxf3 g4 Re2 Rd1 Rg2 Kf1 Rg1 Kf2 Rf1 - Oct 29 02:36 Solved: BLACK_WIN via MATE_PVview
… dxe3 d4 Bb4 c3 exd4 O-O Ng4 hxg4 Qd5 f3 O-O cxb4 Re8 Be3 g4 Bc4 gxf3 g4 Re2 Rd1 Rg2 Kf1 Rg1 Kf2
… dxe3 d4 Bb4 c3 exd4 O-O Ng4 hxg4 Qd5 f3 O-O cxb4 Re8 Be3 g4 Bc4 gxf3 g4 Re2 Rd1 Rg2 Kf1 Rg1 Kf2 - Oct 29 02:36 Solved: BLACK_WIN via MATE_PVview
… dxe3 d4 Bb4 c3 exd4 O-O Ng4 hxg4 Qd5 f3 O-O cxb4 Re8 Be3 g4 Bc4 gxf3 g4 Re2 Rd1 Rg2 Kf1 Rg1
… dxe3 d4 Bb4 c3 exd4 O-O Ng4 hxg4 Qd5 f3 O-O cxb4 Re8 Be3 g4 Bc4 gxf3 g4 Re2 Rd1 Rg2 Kf1 Rg1 - Oct 29 02:36 Solved: BLACK_WIN via MATE_PVview
… dxe3 d4 Bb4 c3 exd4 O-O Ng4 hxg4 Qd5 f3 O-O cxb4 Re8 Be3 g4 Bc4 gxf3 g4 Re2 Rd1 Rg2 Kf1
… dxe3 d4 Bb4 c3 exd4 O-O Ng4 hxg4 Qd5 f3 O-O cxb4 Re8 Be3 g4 Bc4 gxf3 g4 Re2 Rd1 Rg2 Kf1 - Oct 29 02:36 Solved: BLACK_WIN via MATE_PVview
… dxe3 d4 Bb4 c3 exd4 O-O Ng4 hxg4 Qd5 f3 O-O cxb4 Re8 Be3 g4 Bc4 gxf3 g4 Re2 Rd1 Rg2
… dxe3 d4 Bb4 c3 exd4 O-O Ng4 hxg4 Qd5 f3 O-O cxb4 Re8 Be3 g4 Bc4 gxf3 g4 Re2 Rd1 Rg2 - Oct 29 02:36 Solved: BLACK_WIN via MATE_PVview
… dxe3 d4 Bb4 c3 exd4 O-O Ng4 hxg4 Qd5 f3 O-O cxb4 Re8 Be3 g4 Bc4 gxf3 g4 Re2 Rd1
… dxe3 d4 Bb4 c3 exd4 O-O Ng4 hxg4 Qd5 f3 O-O cxb4 Re8 Be3 g4 Bc4 gxf3 g4 Re2 Rd1 - Oct 29 02:36 Solved: BLACK_WIN via MATE_PVview
… dxe3 d4 Bb4 c3 exd4 O-O Ng4 hxg4 Qd5 f3 O-O Bd3
… dxe3 d4 Bb4 c3 exd4 O-O Ng4 hxg4 Qd5 f3 O-O Bd3 - Oct 29 02:36 Solved: BLACK_WIN via MATE_PVview
… dxe3 d4 Bb4 c3 exd4 O-O Ng4 hxg4 Qd5 f3 O-O Bc4 Bxc3 Nc3 Re8 Be3 Qc4 Kh2 g4 Ra4 g3 Kh1 Qe2 Bf2 Qd2 Rh4 h5 Re4 gxf2 Re2 Qe1 Rxe1 Re1 Kh2 Rh1 Kg3 Rh3 Kf4
… dxe3 d4 Bb4 c3 exd4 O-O Ng4 hxg4 Qd5 f3 O-O Bc4 Bxc3 Nc3 Re8 Be3 Qc4 Kh2 g4 Ra4 g3 Kh1 Qe2 Bf2 Qd2 Rh4 h5 Re4 gxf2 Re2 Qe1 Rxe1 Re1 Kh2 Rh1 Kg3 Rh3 Kf4