Last I heard the Grandmasters were challenging Fritz.
But it doesn't matter how much you tweak AlphaBeta, the search width is only half as wide as MiniMax!
About 15 moves to check every ply!
That's 15 X 15 X 15 X 15 X 15 X 15 X 15 ... X 15
You only have 30GB of memory so you run out after 1 billion board positions, so you only get about 15 ply deep!
When Kasparov beat Deep Blue he wasn't using 30GB of photographic memory and 100 nanosecond board updates!
Kasparov was searching
2 X 2 X 2 X 2 X 2 X 2 X 2 X 2 X 2 X 2 X 2 X 2 X 2 X 2 X 2 X 2
16 PLY DEEP! Still an amazing memory for a perosn, but not a billion board positions!
He was COMPARING 2 Plans at a time!
SPACE O(2^n) for MINIMINIMAX
<PLAN1 PLAN2> BBBBBBBB BBBBBBBB WWWW WWWW BB BB W W THE "WINDSCREEN WIPER" ALGORITHM
I use 100,000 board positions at www.C-H-E-S-S.com (plain old minimax) - about as many as Kasparov must have been using.