if (string(argv[1]) != "bench" || argc < 4 || argc > 8)
cout << "Usage: stockfish bench <hash size> <threads> "
<< "[time = 60s] [fen positions file = default] "
if (string(argv[1]) != "bench" || argc < 4 || argc > 8)
cout << "Usage: stockfish bench <hash size> <threads> "
<< "[time = 60s] [fen positions file = default] "