ACM 1973

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Hyatt Regency Atlanta [1]

The ACM's Fourth North American Computer Chess Championship (NACCC) was held from August 26 to 28, 1973 at the Hyatt Regency Hotel, Atlanta, Georgia, USA.

Final Standing

[2]

# Program 1 2 3 4 P SOS Playoff
1 Chess 4.0 7w1 5b½ 8w1 2b1
2 CHAOS 12w1 10b1 6b1 1w0 3 7 3b1,4w0
3 Ostrich 8b0 11b1 10w1 6w1 3 2w0,4w0
4 Tech 2 10b0 12b1 5w1 9w1 3 5 3w1,2b1
5 Dartmouth CP 9b1 1w½ 4b0 8w½ 2
6 Tech 11w1 8b1 2w0 3b0 2
7 T. Belle 1b0 9w½ 12w½ 10w1 2
8 Coko 4 3w1 6w0 1b0 5b½ 10½
9 Ga Tech CP 5w0 7b½ 11w1 4b0 8
10 The Fox 4w1 2w0 3b0 7b0 1 11
11 USC CP 6b0 3w0 9b0 12w1 1 7
12 Ches 2b0 4w0 7b½ 11b0 ½ 9

Participants

[3]

Program Team Hardware Language
CHAOS Ira Ruben, Fred Swartz,
Joe Winograd, Victor Berman
UNIVAC 1108 Fortran
Ches David Barton, Craig Barnes,
Peter Rowe
HP 3000
Chess 4.0 Larry Atkin, Keith Gorlen,
David Slate
CDC 6400 COMPASS
Coko 4 Dennis Cooper, Ed Kozdrowicki UNIVAC 1108 Fortran
Dartmouth CP Warren Montgomery, Larry Harris GE-635 GCOS Assembly
Ga Tech CP Lawrence Futrell Burroughs B-5500
Ostrich George Arnold, Monroe Newborn SuperNOVA Assembly
T. Belle Ken Thompson PDP-11 C
Tech Jim Gillogly PDP-10 BLISS
Tech 2 Alan Baisley PDP-10 Assembly
The Fox Charlie Wilkes, Charles F. Wilkes IBM 370/145 APL
USC CP Albert Zobrist, Frederic Roy Carlson,
Charles Kalme
IBM 370/155

The Tournament

Hyatt Regency Atrium [4]

The defending champions had completely rewritten their program using Shannon's type A strategy and renamed it Chess 4.0. They did it again, but not with a 100% score - after winning three ACM tournaments and ten consecutive tournament games, it only managed to draw from Dartmouth CP in round 2 - being in trouble most of the game, Dartmouth CP repeated the position for the third time while one pawn ahead. In the third round Tech 2 defeated Dartmouth CP, Chess 4.0 defeated Coko 4 and CHAOS won its third straight game to take the lead in the tournament. The last round pitted Chess 4.0 against CHAOS - the winner would win the tournament. The game was a highly tactical one in which the large trees examined by Chess were too much for CHAOS to handle. On the last evening of the tournament, after the Chess 4.0 versus CHAOS game was completed, Charles Kalme played both programs in a simultaneous exhibition with a Queen handicap. He won the game against CHAOS (and a $100 side bet) but lost from Chess 4.0 [5] .

Selected Games

Round 4, CHAOS - Chess 4.0

[Event "ACM 1973"]
[Site "Atlanta USA"]
[Date "1973.08.28"]
[Round "4"]
[White "CHAOS"]
[Black "Chess 4.0"]
[Result "0-1"]

1.d4 d5 2.c4 dxc4 3.Nf3 Nf6 4.e3 e6 5.Bxc4 c5 6.O-O a6 7.Qe2 b5 8.Bb3 Bb7
9.Nc3 Nbd7 10.Bd2 Bd6 11.Rfe1 cxd4 12.exd4 O-O 13.Bg5 Qb6 14.Bc2 Bxf3 15.Qxf3
Qxd4 16.Rad1 Qb4 17.g3 Qxb2 18.Re2 Qa3 19.Qc6 Bb4 20.Rxd7 Rac8 21.Rc7 Rxc7
22.Qxc7 Qxc3 23.Qb7 Qc4 24.Bd1 Rd8 25.Re5 Rxd1+ 26.Kg2 Qf1+ 27.Kf3 Qh1+ 28.Ke2
Re1+ 29.Kd3 Qf1+ 30.Kd4 Qc4# 0-1

Game and short analyze on Lichess.org : [1]

Tournament Director

Publications

Chapter IX. The Fourth United States Computer Chess Championship

External Links

References

  1. View of the Hyatt Regency Atlanta] from the Marriott Marquis, Wikimedia Commons, November 04, 2007, by Connor.carey, Hyatt Regency Atlanta from Wikipedia
  2. ACM 1973 CSVN site
  3. Monroe Newborn (1975). Computer Chess. Academic Press, New York, N.Y. Chapter IX. The Fourth United States Computer Chess Championship
  4. Atrium of the Hyatt Regency Hotel, Downtown Atlanta, Portman's first atrium (1967), Wikimedia Commons, November 18, 2010, by StanSatin, Hyatt Regency Atlanta from Wikipedia
  5. Monroe Newborn (1975). Computer Chess. Academic Press, New York, N.Y. Chapter IX. The Fourth United States Computer Chess Championship

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