The Mac Chess app engine is the engine. On the (because Apple Chess is using the old Sjeng) is says: For standard chess, Sjeng's rating is probably about 2450 ELO And I'm assuming that is at its best.
As for looking at each level, there isn't much of a way to know because, beyond the 3 moves ahead area, it starts counting in seconds, and in that realm it depends on the power of the computer. The more powerful the computer, the better it plays because it can look more moves ahead in that time. TLDR - An estimated 2450 at it's best. It's not a very powerful engine, but it can still whoop most players on it's hardest difficulty.
Macchess For Mac
MacChess is a simple adaptation of this classic strategy game. Features include easy levels for beginners to play, an expanded opening book, an option to show you your best move, and a log to record your. MacCHESS: Beyond the usual In addition to the workhorse techniques of macromolecular crystallography (MX) and BioSAXS, MacCHESS welcomes experiments that use X-rays in other ways, as well as novel applications of MX and BioSAXS.
Chess Software for Mac ChessCentral's online chess store has grouped together chess software programs designed for your Mac computer. Please note that if a product is not listed in this category then it will not run on Mac, but is designed only to run with Windows operating system or PCs. The Mac versions will run on any Mac with OS 7.1 or later.
Newer Macs with OS X can run older, pre-OS X software in what's called the 'classic' mode - programs open and look just they were designed to do, but have none of the newer OS X features. That said, chess software for Mac ranges from material to chess playing engines like. If it's chess software that runs on Mac, then ChessCentral has it in stock!