My own main objective in computer chess was already solved by AlphaZero/Leela Chess Zero, how to use a GPU for chess. Nevertheless I have an open score with my Zeta engine, Zeta Dva on an AMD Phenom X4 CPU plays chess against Zeta on an Nvidia 8800GT GPU, now with hardware upgrade, Zeta Dva on an i5-6500, 4-cores@3.2GHz, plays chess against Zeta on an Nvidia GTX 750, 512-shader-cores@1GHz, a 30$ CPU plays chess against a 30$ GPU. I hope to find in 2024 some time to settle this one ;)