State

What the register says, as of the last export. Playing strength is only ever a difference to the stage’s opponent, predecessor or reference v0, with an error range where one was reported, never an absolute number.

Register export 2026-10-30 · Register T-0001 – T-0227

Key figures

Games in decided runs
3,136,538
Verdicts
120 passed · 18 failed · 83 rejected · 4interrupted (wall run, no verdict)
Success rate
54.3 % 19 of the passed entries played no games (identity, correction, epoch change, adoption); the rate counts them, as the oracle defines it.
Epochs
12 T-0001 – T-0227
Measured hours
at least 810.5 Durations are recorded for part of the runs only; the sum is a lower bound.
Games per minute
short stage 132.8 · long stage 25.9 Median throughput by stage.

Long stage: Elo per run

Long stage: Elo per run 46 runs with this stage, 38 of them passed; estimates from −7.10 to +168.30 Elo. passed, against predecessor passed, against reference v0 failed or rejected no half-width reported −5 0 +5 +20 +50 +100 Epoch 7 Epoch 8 Epoch 9 Epoch 10 Epoch 11 Epoch 12 T-0126 2026-09-25 T-0152 2026-10-01 T-0177 2026-10-10 T-0201 2026-10-23 T-0227 2026-10-30
Every register entry with a long stage, in register order: estimate and reported 95-percent half-width against the stage’s opponent. Square marks measure against the reference v0, round marks against the predecessor or without a named opponent. Hollow marks carry no half-width. Root scale: values near zero are stretched, large values compressed; the tick labels are the true values. Showing the newest 100 of 225 entries; older ones are on the run pages.

From T-0014 to T-0052 the long stage was played against the reference v0, not the predecessor; there the estimates rise above +1,000 and mostly carry no half-width. Only from epoch 3 on does the long stage measure against the predecessor.

Short stage: Elo per run

Short stage: Elo per run 90 runs with this stage, 38 of them passed; estimates from −20.13 to +175.12 Elo. passed, against predecessor passed, against reference v0 failed or rejected no half-width reported −20 −5 0 +5 +20 +50 +100 Epoch 7 Epoch 8 Epoch 9 Epoch 10 Epoch 11 Epoch 12 T-0126 2026-09-25 T-0152 2026-10-01 T-0177 2026-10-10 T-0201 2026-10-23 T-0227 2026-10-30
Every register entry with a short stage, in register order: estimate and reported 95-percent half-width against the stage’s opponent. Square marks measure against the reference v0, round marks against the predecessor or without a named opponent. Hollow marks carry no half-width. Root scale: values near zero are stretched, large values compressed; the tick labels are the true values. Showing the newest 100 of 225 entries; older ones are on the run pages.

Cumulative long stages, as exported by the oracle

Each point is a passed long stage against its predecessor; the line sums them, the band is the 95-percent interval of the sum. The curve adds up selected predecessor comparisons; it is not a progress meter and not an absolute playing strength. Showing the newest 20 of 65 entries; older ones are on the run pages.

Run Date Delta Cumulative 95 % interval
T-0202 2026-10-23 +12.61 +2,000.94 +1,899.92 … +2,101.96
T-0199 2026-10-22 +2.65 +1,988.33 +1,887.51 … +2,089.15
T-0198 2026-10-21 +4.22 +1,985.68 +1,884.88 … +2,086.48
T-0195 2026-10-20 +7.81 +1,981.46 +1,880.71 … +2,082.21
T-0190 2026-10-19 +2.76 +1,973.65 +1,873.01 … +2,074.29
T-0189 2026-10-18 +24.37 +1,970.89 +1,870.27 … +2,071.51
T-0186 2026-10-15 +2.77 +1,946.52 +1,846.26 … +2,046.78
T-0185 2026-10-15 +5.79 +1,943.75 +1,843.51 … +2,043.99
T-0183 2026-10-14 +2.18 +1,937.96 +1,837.80 … +2,038.12
T-0182 2026-10-13 +13.18 +1,935.78 +1,835.63 … +2,035.93
T-0180 2026-10-11 +31.43 +1,922.60 +1,822.64 … +2,022.56
T-0179 2026-10-11 +13.02 +1,891.17 +1,791.66 … +1,990.68
T-0176 2026-10-10 +3.69 +1,878.15 +1,778.83 … +1,977.47
T-0174 2026-10-09 +54.65 +1,874.46 +1,775.18 … +1,973.74
T-0171 2026-10-09 +12.37 +1,819.81 +1,721.21 … +1,918.41
T-0170 2026-10-09 +5.68 +1,807.44 +1,709.03 … +1,905.85
T-0168 2026-10-08 +12.41 +1,801.76 +1,703.42 … +1,900.10
T-0162 2026-10-06 +5.49 +1,789.35 +1,691.20 … +1,887.50
T-0161 2026-10-05 +5.83 +1,783.86 +1,685.78 … +1,881.94
T-0159 2026-10-05 +4.05 +1,778.03 +1,680.02 … +1,876.04

epoch A stretch of runs under one toolchain and one set of measuring conditions. Values across epochs are not added.

Epochs separate measurements whose toolchain or conditions are not freely comparable. Values across an epoch boundary are not added.

Epoch Anchor From To Reason Measurements Toolchain
12 T-0218 2026-10-26 2026-10-30 measuring conditions 10 5c547b3a8043
11 T-0197 2026-10-21 2026-10-26 measuring conditions 20 5c547b3a8043
10 T-0177 2026-10-10 2026-10-20 measuring conditions 20 5c547b3a8043
9 T-0175 2026-10-10 2026-10-10 measuring conditions 2 5c547b3a8043
8 T-0172 2026-10-09 2026-10-09 measuring conditions 3 5c547b3a8043
7 T-0156 2026-10-04 2026-10-09 measuring conditions 16 5c547b3a8043
6 T-0121 2026-09-23 2026-10-03 measuring conditions 34 5c547b3a8043
5 T-0084 2026-09-16 2026-09-23 measuring conditions 37 5c547b3a8043
4 T-0070 2026-09-05 2026-09-15 measuring conditions 14 5c547b3a8043
3 T-0062 2026-09-03 2026-09-04 measuring conditions 8 5c547b3a8043
2 T-0056 2026-09-03 2026-09-03 toolchain 6 5c547b3a8043
1 T-0054 2026-08-28 2026-09-02 bootstrap 55 4ea30c1cade2

Measuring stages

SPRT Sequential probability ratio test. Games are played until the accumulated evidence reaches one of two bounds; then the test stops. hypotheses in nElo, normalized model. Both stages must pass.

Stage time control Base time plus increment per move in seconds, e.g. 8+0.08: eight seconds per game plus 0.08 seconds per move. Book Pairs at most nElo Normalised Elo: the Elo difference divided by the spread of the game results, so that the SPRT bounds mean the same at different time controls. Concurrent
short stage 8+0.08 A 48,000 [0.0, 5.0] 60
long stage 40+0.4 B 18,000 [0.0, 5.0] 60

Books

NameRoleStage
Aprobe bookshort stage
Bsecret, long stage onlylong stage