How are you testing? Are you doing each position discreetly, or part of a suite? I don't think Fritz clears the hash between each position in a testsuite?gordonr wrote: ↑Sun Oct 05, 2025 4:13 amCode: Select all
SF dev 24th Aug 2025, AMD Ryzen 9 5950X 16-Core Processor (3.40 GHz), 2 GB hash, 6 men TBs 100 runs 2 threads: 13.9, 7.49, 13.02, 9.74, 13.15, 10.9, 16.3, 8.24, 4.72, 14.38, 11.25, 6.3, 36.06, 9.19, 6.98, 15.07, 1.35, 7.33, 9.92, 25.73, 9.14, 52.39, 7.56, 14.18, 19.37, 10.94, 6.28, 15.05, 15.05, 14.73, 10.93, 9.95, 11.27, 18.47, 12.06, 9.19, 18.56, 12.14, 12.1, 3.91, 9.07, 14.55, 19.2, 18.16, 22.59, 16.56, 9.38, 2.74, 8.99, 12.64, 14.05, 11.25, 11.66, 10.17, 8.98, 1.23, 3.2, 5.24, 3.42, 40.82, 14.43, 5.34, 13.96, 6.61, 32.61, 9.16, 12.07, 3.4, 13.02, 4.88, 9.79, 18.28, 14.75, 11.83, 19.5, 20.37, 4.78, 14.25, 16.32, 11.81, 6.89, 12.15, 12.3, 8.44, 6.55, 22.23, 6.38, 8.77, 7.48, 16.05, 10.59, 12.1, 1.46, 11.24, 9.47, 10.25, 7.28, 11.2, 6.74, 12.84, Mean: 12.26 secs [1.23, 1.35, 1.46, 2.74, 3.2, 3.4, 3.42, 3.91, 4.72, 4.78, 4.88, 5.24, 5.34, 6.28, 6.3, 6.38, 6.55, 6.61, 6.74, 6.89, 6.98, 7.28, 7.33, 7.48, 7.49, 7.56, 8.24, 8.44, 8.77, 8.98, 8.99, 9.07, 9.14, 9.16, 9.19, 9.19, 9.38, 9.47, 9.74, 9.79, 9.92, 9.95, 10.17, 10.25, 10.59, 10.9, 10.93, 10.94, 11.2, 11.24, 11.25, 11.25, 11.27, 11.66, 11.81, 11.83, 12.06, 12.07, 12.1, 12.1, 12.14, 12.15, 12.3, 12.64, 12.84, 13.02, 13.02, 13.15, 13.9, 13.96, 14.05, 14.18, 14.25, 14.38, 14.43, 14.55, 14.73, 14.75, 15.05, 15.05, 15.07, 16.05, 16.3, 16.32, 16.56, 18.16, 18.28, 18.47, 18.56, 19.2, 19.37, 19.5, 20.37, 22.23, 22.59, 25.73, 32.61, 36.06, 40.82, 52.39] Median: 11.25 secs ------ 16 threads: 5.33, 3.66, 2.2, 4.0, 4.11, 5.4, 1.32, 4.42, 4.18, 6.73, 3.91, 2.67, 4.21, 5.68, 7.21, 2.19, 3.83, 3.05, 4.98, 2.85, 5.0, 7.28, 6.72, 3.82, 3.16, 8.15, 9.25, 4.32, 2.2, 4.9, 6.79, 5.45, 12.95, 7.07, 5.16, 4.82, 10.44, 13.05, 7.04, 5.4, 19.18, 10.26, 5.84, 6.11, 7.1, 2.01, 9.8, 7.7, 13.13, 7.63, 11.34, 7.62, 12.5, 3.77, 5.08, 9.39, 8.19, 2.03, 4.26, 7.84, 5.46, 2.62, 4.92, 5.5, 9.5, 13.8, 7.02, 9.22, 7.21, 7.24, 6.69, 4.19, 10.51, 3.92, 7.17, 11.49, 7.09, 1.26, 4.19, 11.34, 5.58, 12.32, 6.81, 3.94, 9.6, 7.67, 5.34, 6.67, 7.66, 11.98, 7.17, 5.45, 9.39, 9.81, 5.07, 13.94, 11.88, 13.38, 6.13, 3.97, Mean: 6.8 secs [1.26, 1.32, 2.01, 2.03, 2.19, 2.2, 2.2, 2.62, 2.67, 2.85, 3.05, 3.16, 3.66, 3.77, 3.82, 3.83, 3.91, 3.92, 3.94, 3.97, 4.0, 4.11, 4.18, 4.19, 4.19, 4.21, 4.26, 4.32, 4.42, 4.82, 4.9, 4.92, 4.98, 5.0, 5.07, 5.08, 5.16, 5.33, 5.34, 5.4, 5.4, 5.45, 5.45, 5.46, 5.5, 5.58, 5.68, 5.84, 6.11, 6.13, 6.67, 6.69, 6.72, 6.73, 6.79, 6.81, 7.02, 7.04, 7.07, 7.09, 7.1, 7.17, 7.17, 7.21, 7.21, 7.24, 7.28, 7.62, 7.63, 7.66, 7.67, 7.7, 7.84, 8.15, 8.19, 9.22, 9.25, 9.39, 9.39, 9.5, 9.6, 9.8, 9.81, 10.26, 10.44, 10.51, 11.34, 11.34, 11.49, 11.88, 11.98, 12.32, 12.5, 12.95, 13.05, 13.13, 13.38, 13.8, 13.94, 19.18] Median: 6.67 secs
Also you're using a later version of Stockfish.