Enable pure NNUE for most variants

Enable pure NNUE for most variants

Since NNUE is faster and better than classical evaluation,
use pure NNUE for all variants except 3check.

makpong STC
ELO: 94.32 +-43.1 (95%) LOS: 100.0%
Total: 200 W: 102 L: 49 D: 49

makpong LTC
ELO: 96.19 +-59.2 (95%) LOS: 100.0%
Total: 100 W: 49 L: 22 D: 29

minixiangqi STC
ELO: 75.88 +-34.3 (95%) LOS: 100.0%
Total: 200 W: 72 L: 29 D: 99

minixiangqi LTC
ELO: 70.44 +-49.4 (95%) LOS: 99.8%
Total: 100 W: 36 L: 16 D: 48

racingkings STC
ELO: 57.86 +-25.8 (95%) LOS: 100.0%
Total: 400 W: 147 L: 81 D: 172

racingkings LTC
ELO: 56.07 +-50.4 (95%) LOS: 98.7%
Total: 100 W: 35 L: 19 D: 46

losers STC
ELO: 63.23 +-65.5 (95%) LOS: 97.5%
Total: 100 W: 53 L: 35 D: 12

losers LTC
ELO: 31.35 +-65.9 (95%) LOS: 82.8%
Total: 100 W: 50 L: 41 D: 9