Update main network to nn-87a9d7857d88.nnue
trained with https://github.com/vondele/nettest/blob/842d95177f882c0e9b5262247c38d8fcb3e0f3db/threats.yaml
passed STC:
LLR: 2.93 (-2.94,2.94) <0.00,2.00>
Total: 114880 W: 30291 L: 29851 D: 54738
Ptnml(0-2): 499, 13547, 28947, 13909, 538
https://tests.stockfishchess.org/tests/view/6923ec4bba083df4ca63dd39
passed LTC:
LLR: 2.97 (-2.94,2.94) <0.50,2.50>
Total: 113268 W: 29115 L: 28634 D: 55519
Ptnml(0-2): 114, 12295, 31340, 12766, 119
https://tests.stockfishchess.org/tests/view/6925cd01b23dfeae38cfe134
closes https://github.com/official-stockfish/Stockfish/pull/6452
Bench: 3028457