The new Tafl engine (AI)

[sovaz1997]

It seems the bug was also in the training because the engine thinks the positon is completely lost before the wrong king capture.

It'll be better once I fix it
Although further training might help after the fix.

[sovaz1997]

Hi all!
A new version of TaflZero is now available on the https://playtafl.org/

Larger neural network with a new architecture
WebGPU support, so for now it's will working even faster than old small nn.
The new NN recognizes forts.
About 100 Elo stronger than the previous version, and improvements are ongoing...

One downside: for the historical variant, I had to use the same "Copenhagen" network due to the new architecture. However, training a version for that variant as well won't be a problem in the future.

Forts already in self-play! (https://discord.com/channels/1497183685 ... 8732514344)

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# PLAYER             : RATING  ERROR   POINTS  PLAYED    (%)
   1 T2 10x128 g0206    : 2510.7   25.8    331.0     432   76.6% # a lot of probably because added proved-mate heuristic
   2 T2 10x128 g0204    : 2442.8    6.7   5122.5    7304   70.1%
   3 T2 10x128 g0198    : 2402.9    6.8   4008.0    6144   65.2%
   4 T2 10x128 g0201    : 2396.2    7.3   2389.5    3773   63.3%
   5 T2 10x128 g0196    : 2395.6    7.9   2833.0    4471   63.4%
   6 T0.2 6x64 g0146    : 2388.9    4.8   7932.5   11202   70.8%
   7 T2 10x128 g0192    : 2367.3    7.8   2486.0    4183   59.4%
   8 T2 10x128 g0195    : 2363.4    8.1   1984.5    3437   57.7%
   9 T2 10x128 g0190    : 2343.2    9.7   1300.5    2503   52.0%
  10 T2 10x128 g0184    : 2342.1    6.6   3032.5    5246   57.8%
  11 T2 10x128 g0180    : 2328.9    7.7   1831.5    3484   52.6%
  12 T2 10x128 g0187    : 2322.1    8.6   2030.5    3837   52.9%
  13 T2 10x128 g0178    : 2309.3    8.3   1391.0    2917   47.7%
  14 T2 10x128 g0171    : 2296.6    6.6   2480.0    4816   51.5%
  15 T2 6x64 g0157      : 2267.0    5.7   4150.0    8080   51.4%
  16 T2 10x128 g0167    : 2263.3    7.2   2314.5    4920   47.0%
  17 T2 6x64 g0149      : 2247.3    4.8   6077.5   11992   50.7%
  18 T2 6x64 g0141      : 2238.3    6.2   3311.0    7195   46.0%
  19 T2 6x64 g0138      : 2233.3    5.4   3300.5    7270   45.4%
  20 T2 6x64 g0127      : 2207.7    5.1   4511.5   10192   44.3%
  21 T2 6x64 g0122      : 2198.4    5.8   4375.0   10196   42.9%
  22 T2 6x64 g0132      : 2184.6    6.1   2739.0    7124   38.4%
  23 T2 6x64 g0124      : 2168.0    5.4   3928.5   10194   38.5%
  24 T2 6x64 g0120      : 2146.8    4.7   4345.5   12198   35.6%
  25 T2 6x64 g0119      : 2135.1    5.3   3948.0   11198   35.3%

[sovaz1997]

Last tests:

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# PLAYER             : RATING  ERROR   POINTS  PLAYED    (%)
   1 T2 10x128 g0213    : 2548.5    8.9   3398.5    4265   79.7%
   2 T2 10x128 g0209    : 2491.9    6.3   5269.0    7069   74.5%
   3 T2 10x128 g0208    : 2488.0   11.1   1704.5    2409   70.8%
   4 T2 10x128 g0206    : 2465.6    9.8   2088.5    3007   69.5%
   5 T2 10x128 g0204    : 2417.9    6.0   5345.0    7892   67.7%
   6 T2 10x128 g0198    : 2377.9    6.3   4199.0    6733   62.4%
   7 T2 10x128 g0196    : 2371.5    7.0   3025.5    5060   59.8%
   8 T2 10x128 g0201    : 2369.6    5.8   2567.5    4361   58.9%
   9 T0.2 6x64 g0146    : 2363.9    5.1   8098.5   11793   68.7%

+185 elo over old version!

Also recently launched engine matches - https://tv.playtafl.org/
Also updated engine to gen213 on https://playtafl.org/