1993 ACM International Computer Chess Championship (with corrections)
Bradley C. Kuszmaul
Championship.
This note briefly describes the contestants and gives the match results.
The contestants (in order of initial seeding) and brief descriptions taken
from the program guide (modified as best as I can remember to reflect
reality). A few corrections from the last post are included. All errors are mine.
-Bradley C. Kuszmaul
part of the StarTech team.
1. Chess Machine/Schroder
by Ed Schroder and Jan Loumann, Rotterdam, Netherlands
PC laptop with a special-purpose chess hardware accelator board.
~8000 nodes/second
434 Kbyte hashtable
estimated rating 2495
2. M Chess Professional
by Marty Hirsch, San Rafael CA
PC 486 running a commercially available chess program
~5000 nodes/second
2 Mbyte hashtable (the program incorrectly states this as 16K)
estimated rating 2450
3. B* Hitech
by Dr. Hans Berliner and Chris McConnell, Carnegie Mellon University
Special purpose chess hardware running the B* search algorithm instead
of alpha-beta search.
100,000 nodes/second
1 Mbyte hash table
estimated rating 2400
4. Zarkov
by John Stanback (the original author of GnuChess), (John is an HP
VLSI process engineer) Ft. Collins, CO
HP PA_RISC 9000/735C (99 Mhz) running a "hobby program" (not
commercially available.)
15,000 nodes/second
64 Kbyte hash table
estimated rating 2400
5. Cray Blitz
by Robert Hyatt, Harry Nelson and Albert Gower, Univ. Alabama at Birmingham
CRAY C-90 16 Processors (located at Cray Research's Production
Laboratory, Chippewa Falls, Minnesota)
10^6 nodes/second
2*10^9 byte hash table
estimated rating 2200+
6. Socrates II
by Don Dailey and Larry Kaufman, Heuristic Software, Berkeley, CA (but
Don and Larry live and work in Florida)
PC 486 running a soon-to-be-commercially-available program written entirely in C.
8K nodes/second (not in guide, but I think that's what they said)
32K hashtable
estimated rating 2400
(These guys said they would use the $4000 first prize to buy an alpha
based DEC workstation.)
7. Kallisto
by Bart Westrada and Franz van de Eng, Wormerueer Netherlands
PC 486
?? nodes/second
128K Hash table
8. BP
a "hobby program" by Robert Cullum of Prospect Heights, IL
PC 486 running a "hobby program".
2400 Nodes/second
165K entries (96 bits per entry?)
estimated rating 2260
9. BeBe
by Tony and Linda Scherzer, SYS-10 Inc., Hoffman Estates, IL
SYS 10 Chess Engine (special purpose chess hardware. Tony was talking about
how when the added MIN and MAX instructions to ALU that they sped things up
a little bit) running a "hobby program".
40,000 nodes/second
3 Meg hash table
estimated rating 2100
10. StarTech
by Bradley C. Kuszmaul, Charles Leiserson, Ryan Rifkin, James Schuyler,
of MIT (and with contributions by many others).
running a highly parallel alpha-beta algorithm developed at MIT, and
using the Hitech static evaluation
function of CMU's Hans Berliner on the
512 node CM-5 at National Center for Supercomputing Applications,
Champagne-Urbana, IL
200,000 nodes/second
200Megabtye hash table.
estimated rating 2100 in guide, but the organizers just made that up.
StarTech is probably more like 2300-2400.
11. Now
Written in C* by Mark Lefler, Frankfurt, with an APO address
PC 486
8K nodes/second
?? hash table
estimated rating 2250
12. Innovation
Written in C by Jeff Mallett, Hickory NC
Macintosh Quadra 700 (68040)
2K nodes/second
128 K hashtable
estimated rating 2000
And here is the cross-table: How to read this:
Each entry is of the form N,C,A
where N is the number of the opponent,
C is W, or B, the color played by the player,
A is the accumulated score (0 points for each loss, 0.5 for each
draw, 1 for each win)
Player Round Final
1 2 3 4 5 Rank
1. Chess Machine/Schroder 7,W,1.0 6,B,1.0 8,W,2.0 5,W,2.5 3,B,2.5 6
2. Mchess Professional 8,B,1.0 5,W,1.0 10,W,2.0 6,B,2.0 4,W,2.0 10
3. B* Hitech 9,W,1.0 10,B,1.5 4,W,1.5 8,B,2.0 1,W,3.0 3
4. Zarkov 10,B,0.0 9,W,1.0 3,B,2.0 7,W,2.0 2,B,3.0 3
5. Cray Blitz 11,W,1.0 2,W,1.0 6,B,2.5 1,B,3.0 10,B,3.5 2
6. Socrates 12,B,1.0 1,W,2.0 5,B,2.5 2,W,3.5 7,B,4.5 1
7. Kallisto 1,B,0.0 12,W,1.0 11,B,1.5 4,B,2.5 6,W,2.5 6
8. BP 2,W,0.0 11,B,1.0 1,B,1.0 3,W,1.5 12,W,2.5 6
9. BeBe 3,B,0.0 4,B,0.0 12,W,1.0 10,W,1.0 11,B,1.0 11
10. *Tech 4,W,1.0 3,W,1.5 2,B,1.5 9,B,2.5 5,W,3.0 3
11. Now 5,B,0.0 8,W,0.0 7,W,0.5 12,B,1.5 9,W,2.5 6
12. Innovation 6,W,0.0 7,B,0.0 9,B,0.0 11,W,0.0 8,B,0.0 12
Socrates received the trophy for best small system, and it looks as though
Kallisto, BP and Chess Machine/Schroder shared the prize money for best
small system. (Socrates was ineligable for the prize money for best small
system because it got the prize money for first, but Socrates got the
trophy.)