🔍 Tune search values (spsa) + define limits and steps in code

[eduherminio]

• Add SPSAAttribute<T> to define in the code param limits and steps

• Use it for all search tunable parameters in Configuration.EngineSettings

• Add NMP_DepthIncrement and NMP_DepthDivisor instead of having them hardcoded

• Fix see_badcapturereduction UCI handling

• Add ob_spsa, ob_spsa_pretty and wf_spsa UCI commands to print spsa inputs

• Add WF tuned values

  

40+0.4, [0,3]

Score of Lynx-spsa-ob-setup-wf-tuning-2915-win-x64 vs Lynx 2907 - main: 465 - 264 - 492  [0.582] 1221
...      Lynx-spsa-ob-setup-wf-tuning-2915-win-x64 playing White: 334 - 61 - 215  [0.724] 610
...      Lynx-spsa-ob-setup-wf-tuning-2915-win-x64 playing Black: 131 - 203 - 277  [0.441] 611
...      White vs Black: 537 - 192 - 492  [0.641] 1221
Elo difference: 57.7 +/- 15.1, LOS: 100.0 %, DrawRatio: 40.3 %
SPRT: llr 2.9 (100.2%), lbound -2.25, ubound 2.89 - H1 was accepted

Non reg of the last commit

Test  | 12768EFA7186FE81
Elo   | 1.29 +- 3.05 (95%)
SPRT  | 8.0+0.08s Threads=1 Hash=32MB
LLR   | 2.89 (-2.25, 2.89) [-3.00, 1.00]
Games | 30602: +9450 -9336 =11816
Penta | [996, 3424, 6364, 3504, 1013]
https://openbench.lynx-chess.com/test/294/

Final state.json

{
   "t":127680,
   "spsa_params":{
      "a":1.0,
      "c":1.0,
      "A":205,
      "alpha":0.601,
      "gamma":0.102
   },
   "uci_params":[
      {
         "name":"LMR_MinDepth",
         "value":3.169790140437203,
         "min_value":1,
         "max_value":10,
         "step":1
      },
      {
         "name":"LMR_MinFullDepthSearchedMoves",
         "value":3.0699829145153457,
         "min_value":1,
         "max_value":10,
         "step":1
      },
      {
         "name":"LMR_Base",
         "value":85.04041902144512,
         "min_value":10,
         "max_value":200,
         "step":10
      },
      {
         "name":"LMR_Divisor",
         "value":311.92909201816406,
         "min_value":100,
         "max_value":500,
         "step":10
      },
      {
         "name":"NMP_MinDepth",
         "value":2.9240154227990063,
         "min_value":1,
         "max_value":10,
         "step":1
      },
      {
         "name":"NMP_BaseDepthReduction",
         "value":2.1548462469075966,
         "min_value":1,
         "max_value":5,
         "step":1
      },
      {
         "name":"NMP_DepthIncrement",
         "value":1.4371652535715362,
         "min_value":0,
         "max_value":20,
         "step":1
      },
      {
         "name":"NMP_DepthDivisor",
         "value":5.161886890131617,
         "min_value":1,
         "max_value":20,
         "step":1
      },
      {
         "name":"AspirationWindow_Delta",
         "value":12.271652248927143,
         "min_value":1,
         "max_value":100,
         "step":5
      },
      {
         "name":"AspirationWindow_MinDepth",
         "value":7.13661848273475,
         "min_value":1,
         "max_value":20,
         "step":1
      },
      {
         "name":"RFP_MaxDepth",
         "value":6.215409308542844,
         "min_value":1,
         "max_value":20,
         "step":1
      },
      {
         "name":"RFP_DepthScalingFactor",
         "value":107.30487482680617,
         "min_value":1,
         "max_value":300,
         "step":5
      },
      {
         "name":"Razoring_MaxDepth",
         "value":1.8292854104271135,
         "min_value":1,
         "max_value":10,
         "step":1
      },
      {
         "name":"Razoring_Depth1Bonus",
         "value":83.77576659864671,
         "min_value":1,
         "max_value":300,
         "step":10
      },
      {
         "name":"Razoring_NotDepth1Bonus",
         "value":134.6406040762632,
         "min_value":1,
         "max_value":300,
         "step":10
      },
      {
         "name":"IIR_MinDepth",
         "value":3.0404906532851825,
         "min_value":1,
         "max_value":10,
         "step":1
      },
      {
         "name":"LMP_MaxDepth",
         "value":5.571621108222434,
         "min_value":1,
         "max_value":10,
         "step":1
      },
      {
         "name":"LMP_BaseMovesToTry",
         "value":0.2203536646341653,
         "min_value":0,
         "max_value":10,
         "step":1
      },
      {
         "name":"LMP_MovesDepthMultiplier",
         "value":4.220206809731811,
         "min_value":0,
         "max_value":50,
         "step":1
      },
      {
         "name":"SEE_BadCaptureReduction",
         "value":2.0559429303265633,
         "min_value":0,
         "max_value":3,
         "step":1
      }
   ]
}