low_ply_history (sg)

[fish...@noreply.github.com]

https://tests.stockfishchess.org/tests/view/5fa24903bca9bf35bae7f855

04-11-20 from sg

low_ply_history: Decrease depth part of weight for low ply history for quiet move ordering. Bench: 3620076
master: Fix incorrect pruning in qsearch

TC: 10+0.1 th 1
LLR: -2.93 (-2.94,2.94) {-0.25,1.25}
Total: 58416 W: 5969 L: 6018 D: 46429
Ptnml(0-2): 270, 4691, 19319, 4674, 254

Decrease depth part of weight for low ply history for quiet move ordering.

[fish...@noreply.github.com]

https://tests.stockfishchess.org/tests/view/5fa1ce47bca9bf35bae7f80a

03-11-20 from sg

low_ply_history: Decrease weight of low ply history with increasing ply in quiet move ordering. Bench: 3569743

master: Fix incorrect pruning in qsearch

TC: 10+0.1 th 1

LLR: -2.95 (-2.94,2.94) {-0.25,1.25}
Total: 124288 W: 12853 L: 12810 D: 98625
Ptnml(0-2): 592, 9945, 41037, 9968, 602

Decrease weight of low ply history with increasing ply in quiet move ordering.

[fish...@noreply.github.com]

https://tests.stockfishchess.org/tests/view/5fa1cf60bca9bf35bae7f80c

03-11-20 from sg

low_ply_history: Increase resolution for low ply history in quiet move ordering by factoring out the divisor 3. Bench: 3691224

master: Fix incorrect pruning in qsearch

TC: 10+0.1 th 1

LLR: -2.94 (-2.94,2.94) {-0.25,1.25}
Total: 113232 W: 11615 L: 11586 D: 90031
Ptnml(0-2): 513, 9058, 37456, 9065, 524

Increase resolution for low ply history in quiet move ordering by factoring out the divisor 3.