13 Best: Deep Shredder

: Includes over 1,000 built-in chess puzzles to help improve tactical skills.

In various computer chess rating lists, Deep Shredder 13 remains a highly competitive commercial engine: SSDF Rating : As of late 2022, it was rated at on an AMD Ryzen 1800X system. CCRL Rating Deep Shredder 13

Let’s crunch the numbers. On a modern 8-core Intel i9-11900K (using compatibility mode), Deep Shredder 13 achieves approximately 5.8 million positions per second (nps) in the middlegame. : Includes over 1,000 built-in chess puzzles to

Shredder 13, by contrast, plays like a very strong Grandmaster. It values piece activity over material, but it does not engage in the "weird" computer moves that require 30 minutes of analysis to understand. : Includes over 1