Update Elo estimates for terms in search. #3868
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This updates estimates from 2yr ago #2401, and adds missing terms.
All tests run at 10+0.1 (STC), 20000 games, error bars +- 1.8 Elo, book 8moves_v3.png.
Values are rounded to the nearest non-negative integer.
Non-red tests that have been tried simplification and failed:
If ttMove is quiet, update move sorting heuristics on TT hit
Extra penalty for early quiet moves of the previous ply
Penalty for a quiet ttMove that fails low
A small Probcut idea, when we are in check
Check extensions
Simplification found by these tests:
#3863
#3867
Test about pure NNUE vs Hybrid:
LTC: https://tests.stockfishchess.org/tests/view/61b5785cdffbe89a3580948a (~10 Elo)
STC: https://tests.stockfishchess.org/tests/view/61b5784ddffbe89a35809484 ( ~7 Elo)
No functional change.