-> added singular extension gates with verification and search counters
-> added probcut with capture/promotion filtering, see checks, and cutoff conditions
-> added immediate threat detection without nnue dependency
-> prevented nmp, rfp, and lmp pruning when immediate threats are detected
-> improved search counter tracking across root, iterative, and emergency paths
-> added ~50 tests for singular extensions, probcut, threat detection, pruning safeguards, determinism, and search invariants
i would appreciate any testing or suggestions
source: https://github.com/stup1d1y-0bv10us/russell
latest version: https://github.com/stup1d1y-0bv10us/rus ... s/tag/v1.7
other versions: https://github.com/stup1d1y-0bv10us/russell/releases
gracias!