VVLTC tune
Passed VVLTC with stc bounds:
LLR: 2.94 (-2.94,2.94) <0.00,2.00>
Total: 21424 W: 5638 L: 5387 D: 10399
Ptnml(0-2): 2, 1925, 6607, 2176, 2
https://tests.stockfishchess.org/tests/view/69938fbcff782f8eeef612a9
Passed VVLTC with ltc bounds:
LLR: 2.96 (-2.94,2.94) <0.50,2.50>
Total: 33410 W: 8784 L: 8499 D: 16127
Ptnml(0-2): 5, 2968, 10474, 3253, 5
https://tests.stockfishchess.org/tests/view/69923ea872254723ef22c6fa
Verify Elo loss at STC:
LLR: -2.93 (-2.94,2.94) <-1.75,0.25>
Total: 17504 W: 4420 L: 4704 D: 8380
Ptnml(0-2): 56, 2259, 4420, 1947, 70
https://tests.stockfishchess.org/tests/view/69946e4186e4a3231411625b
closes https://github.com/official-stockfish/Stockfish/pull/6616
bench: 3074962