US Championship 1975

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US Championship 1975
Compiled by suenteus po 147

The 24th United States Chess Championship, held from June 7th to the 26th, 1975 in Oberlin, Ohio, was also a World Chess Championship zonal event. The participants for the event included (in order of ELO): Robert Byrne (2600), Lubomir Kavalek (2555), Walter Shawn Browne (2550), Samuel Reshevsky (2530), William Lombardy (2520), Pal Benko (2515), James Tarjan (2480), John Grefe (2470), Edmar Mednis (2455), Arthur Bisguier (2445), Kenneth Rogoff (2445), Kim Commons (2415), John Peters (2335), and Milan Vukcevich (2200). Browne and Rogoff qualified for the 1976 Interzonals based on their respective first and second place here. Byrne and Kavalek would compete at the interzonals also. Bisguier set the record here as the only person to draw every one of his games at the US Championship. The final round saw a controversy between Reshevsky and Benko over a supposed "pre-agreed draw" between the two that went sour. You can read all about the story here: Benko vs Reshevsky, 1975 and also in the first source below.

1 2 3 4 5 6 7 8 9 0 1 2 3 4 1. Browne x ½ ½ 1 ½ ½ ½ ½ ½ ½ ½ 1 1 1 8½- 4½ 2. Rogoff ½ x ½ ½ ½ 0 ½ ½ ½ 1 1 1 1 ½ 8 - 5 3. Vukcevich ½ ½ x ½ 1 0 ½ 1 ½ ½ 1 0 1 ½ 7½- 5½ 4. Byrne, R. 0 ½ ½ x ½ ½ ½ 1 ½ ½ ½ 1 ½ ½ 7 - 6 5. Reshevsky ½ ½ 0 ½ x ½ ½ ½ ½ ½ 1 ½ 1 ½ 7 - 6 6. Lombardy ½ 1 1 ½ ½ x ½ 0 1 ½ 0 ½ 0 ½ 6½- 6½ 7. Bisguier ½ ½ ½ ½ ½ ½ x ½ ½ ½ ½ ½ ½ ½ 6½- 6½ 8. Tarjan ½ ½ 0 0 ½ 1 ½ x 1 ½ 0 1 ½ ½ 6½- 6½ 9. Commons ½ ½ ½ ½ ½ 0 ½ 0 x ½ 1 0 1 1 6½- 6½ 10. Kavalek ½ 0 ½ ½ ½ ½ ½ ½ ½ x 0 ½ ½ ½ 5½- 7½ 11. Peters ½ 0 0 ½ 0 1 ½ 1 0 1 x ½ 0 ½ 5½- 7½ 12. Mednis 0 0 1 0 ½ ½ ½ 0 1 ½ ½ x ½ ½ 5½- 7½ 13. Grefe 0 0 0 ½ 0 1 ½ ½ 0 ½ 1 ½ x 1 5½- 7½ 14. Benko 0 ½ ½ ½ ½ ½ ½ ½ 0 ½ ½ ½ 0 x 5 - 8

Sources: 1. http://graeme.50webs.com/chesschamp... 2. http://www.365chess.com/tournaments...

Round One, June 7th
Browne vs J Peters, 1975
(B83) Sicilian, 21 moves, 1/2-1/2
R Byrne vs Lombardy, 1975
(B06) Robatsch, 22 moves, 1/2-1/2
Kavalek vs Benko, 1975
(B08) Pirc, Classical, 12 moves, 1/2-1/2
E Mednis vs J Grefe, 1975
(B83) Sicilian, 20 moves, 1/2-1/2
Reshevsky vs A Bisguier, 1975
(D60) Queen's Gambit Declined, Orthodox Defense, 23 moves, 1/2-1/2
K Rogoff vs K Commons, 1975
(D60) Queen's Gambit Declined, Orthodox Defense, 23 moves, 1/2-1/2
J Tarjan vs M Vukcevich, 1975
(A28) English, 50 moves, 0-1
Round Two, June 8th
Benko vs R Byrne, 1975
(E99) King's Indian, Orthodox, Taimanov, 13 moves, 1/2-1/2
A Bisguier vs Kavalek, 1975
(B40) Sicilian, 13 moves, 1/2-1/2
K Commons vs Reshevsky, 1975
(E12) Queen's Indian, 22 moves, 1/2-1/2
J Grefe vs M Vukcevich, 1975
(B50) Sicilian, 31 moves, 0-1
Lombardy vs J Tarjan, 1975
(D94) Grunfeld, 35 moves, 0-1
E Mednis vs Browne, 1975
(B92) Sicilian, Najdorf, Opocensky Variation, 37 moves, 0-1
J Peters vs K Rogoff, 1975
(E54) Nimzo-Indian, 4.e3, Gligoric System, 27 moves, 0-1
Round Three, June 9th
Browne vs J Grefe, 1975
(D59) Queen's Gambit Declined, Tartakower, 61 moves, 1-0
R Byrne vs A Bisguier, 1975
(C78) Ruy Lopez, 19 moves, 1/2-1/2
Kavalek vs K Commons, 1975
(A14) English, 26 moves, 1/2-1/2
Reshevsky vs J Peters, 1975
(E42) Nimzo-Indian, 4.e3 c5, 5.Ne2 (Rubinstein), 48 moves, 1-0
K Rogoff vs E Mednis, 1975
(D78) Neo-Grunfeld, 6.O-O c6, 55 moves, 1-0
J Tarjan vs Benko, 1975
(B40) Sicilian, 29 moves, 1/2-1/2
M Vukcevich vs Lombardy, 1975
(B48) Sicilian, Taimanov Variation, 66 moves, 0-1
Round Four June 11th
Benko vs M Vukcevich, 1975
(E92) King's Indian, 24 moves, 1/2-1/2
A Bisguier vs J Tarjan, 1975
(A45) Queen's Pawn Game, 75 moves, 1/2-1/2
Browne vs K Rogoff, 1975
(B17) Caro-Kann, Steinitz Variation, 30 moves, 1/2-1/2
K Commons vs R Byrne, 1975
(E66) King's Indian, Fianchetto, Yugoslav Panno, 58 moves, 1/2-1/2
J Grefe vs Lombardy, 1975
(B42) Sicilian, Kan, 36 moves, 1-0
E Mednis vs Reshevsky, 1975
(B44) Sicilian, 18 moves, 1/2-1/2
J Peters vs Kavalek, 1975
(B83) Sicilian, 41 moves, 1-0
Round Five, June 12th
R Byrne vs J Peters, 1975
(B81) Sicilian, Scheveningen, Keres Attack, 41 moves, 1/2-1/2
Kavalek vs E Mednis, 1975
(B68) Sicilian, Richter-Rauzer Attack, 7...a6 Defense, 9...Be7, 60 moves, 1/2-1/2
Lombardy vs Benko, 1975
(A15) English, 15 moves, 1/2-1/2
Reshevsky vs Browne, 1975
(E68) King's Indian, Fianchetto, Classical Variation, 8.e4, 26 moves, 1/2-1/2
K Rogoff vs J Grefe, 1975
(E69) King's Indian, Fianchetto, Classical Main line, 33 moves, 1-0
J Tarjan vs K Commons, 1975
(B43) Sicilian, Kan, 5.Nc3, 40 moves, 1-0
M Vukcevich vs A Bisguier, 1975
(B00) Uncommon King's Pawn Opening, 41 moves, 1/2-1/2
Round Six, June 15th
A Bisguier vs Lombardy, 1975
(B31) Sicilian, Rossolimo Variation, 25 moves, 1/2-1/2
Browne vs Kavalek, 1975
(B81) Sicilian, Scheveningen, Keres Attack, 106 moves, 1/2-1/2
K Commons vs M Vukcevich, 1975
(E75) King's Indian, Averbakh, Main line, 21 moves, 1/2-1/2
J Grefe vs Benko, 1975
(B84) Sicilian, Scheveningen, 24 moves, 1-0
E Mednis vs R Byrne, 1975
(C91) Ruy Lopez, Closed, 60 moves, 0-1
J Peters vs J Tarjan, 1975
(B51) Sicilian, Canal-Sokolsky (Rossolimo) Attack, 31 moves, 1-0
K Rogoff vs Reshevsky, 1975
(A15) English, 21 moves, 1/2-1/2
Round Seven, June 16th
Benko vs A Bisguier, 1975
(A28) English, 9 moves, 1/2-1/2
R Byrne vs Browne, 1975
(B90) Sicilian, Najdorf, 30 moves, 0-1
Kavalek vs K Rogoff, 1975
(B13) Caro-Kann, Exchange, 56 moves, 0-1
Lombardy vs K Commons, 1975
(D41) Queen's Gambit Declined, Semi-Tarrasch, 47 moves, 1-0
Reshevsky vs J Grefe, 1975
(A89) Dutch, Leningrad, Main Variation with Nc6, 38 moves, 1-0
J Tarjan vs E Mednis, 1975
(B89) Sicilian, 40 moves, 1-0
M Vukcevich vs J Peters, 1975
(B40) Sicilian, 23 moves, 1-0
Round Eight, June 18th
Browne vs J Tarjan, 1975
(B78) Sicilian, Dragon, Yugoslav Attack, 10.castle long, 35 moves, 1/2-1/2
K Commons vs Benko, 1975
(B23) Sicilian, Closed, 37 moves, 1-0
J Grefe vs A Bisguier, 1975
(C69) Ruy Lopez, Exchange, Gligoric Variation, 20 moves, 1/2-1/2
E Mednis vs M Vukcevich, 1975
(C85) Ruy Lopez, Exchange Variation Doubly Deferred (DERLD), 102 moves, 1-0
J Peters vs Lombardy, 1975
(C96) Ruy Lopez, Closed, 28 moves, 1-0
Reshevsky vs Kavalek, 1975
(D74) Neo-Grunfeld, 6.cd Nxd5, 7.O-O, 13 moves, 1/2-1/2
K Rogoff vs R Byrne, 1975
(E12) Queen's Indian, 28 moves, 1/2-1/2
Round Nine, June 19th
Benko vs J Peters, 1975
(A35) English, Symmetrical, 41 moves, 1/2-1/2
A Bisguier vs K Commons, 1975
(B21) Sicilian, 2.f4 and 2.d4, 40 moves, 1/2-1/2
R Byrne vs Reshevsky, 1975
(C42) Petrov Defense, 60 moves, 1/2-1/2
Kavalek vs J Grefe, 1975
(A39) English, Symmetrical, Main line with d4, 29 moves, 1/2-1/2
Lombardy vs E Mednis, 1975
(A00) Uncommon Opening, 16 moves, 1/2-1/2
J Tarjan vs K Rogoff, 1975
(B17) Caro-Kann, Steinitz Variation, 38 moves, 1/2-1/2
M Vukcevich vs Browne, 1975
(B84) Sicilian, Scheveningen, 39 moves, 1/2-1/2
Round Ten, June 20th
Browne vs Lombardy, 1975
(B47) Sicilian, Taimanov (Bastrikov) Variation, 31 moves, 1/2-1/2
J Grefe vs K Commons, 1975
(B11) Caro-Kann, Two Knights, 3...Bg4, 23 moves, 0-1
Kavalek vs R Byrne, 1975
(E17) Queen's Indian, 11 moves, 1/2-1/2
E Mednis vs Benko, 1975
(B42) Sicilian, Kan, 23 moves, 1/2-1/2
J Peters vs A Bisguier, 1975
(C67) Ruy Lopez, 19 moves, 1/2-1/2
Reshevsky vs J Tarjan, 1975
(A00) Uncommon Opening, 21 moves, 1/2-1/2
K Rogoff vs M Vukcevich, 1975
(A20) English, 23 moves, 1/2-1/2
Round Eleven, June 22nd
Benko vs Browne, 1975
(A05) Reti Opening, 36 moves, 0-1
A Bisguier vs E Mednis, 1975
(A45) Queen's Pawn Game, 54 moves, 1/2-1/2
R Byrne vs J Grefe, 1975
(B52) Sicilian, Canal-Sokolsky (Rossolimo) Attack, 42 moves, 1/2-1/2
K Commons vs J Peters, 1975
(A15) English, 34 moves, 1-0
Lombardy vs K Rogoff, 1975
(A07) King's Indian Attack, 40 moves, 1-0
J Tarjan vs Kavalek, 1975
(C28) Vienna Game, 75 moves, 1/2-1/2
M Vukcevich vs Reshevsky, 1975
(B61) Sicilian, Richter-Rauzer, Larsen Variation, 7.Qd2, 66 moves, 1-0
Round Twelve, June ?th
Browne vs A Bisguier, 1975
(C89) Ruy Lopez, Marshall, 70 moves, 1/2-1/2
R Byrne vs J Tarjan, 1975
(B78) Sicilian, Dragon, Yugoslav Attack, 10.castle long, 52 moves, 1-0
J Grefe vs J Peters, 1975
(A22) English, 40 moves, 1-0
Kavalek vs M Vukcevich, 1975
(A04) Reti Opening, 11 moves, 1/2-1/2
E Mednis vs K Commons, 1975
(A14) English, 47 moves, 1-0
Reshevsky vs Lombardy, 1975
(D63) Queen's Gambit Declined, Orthodox Defense, 64 moves, 1/2-1/2
K Rogoff vs Benko, 1975
(B23) Sicilian, Closed, 23 moves, 1/2-1/2
Round Thirteen, June 26th
Benko vs Reshevsky, 1975
(A22) English, 58 moves, 1/2-1/2
A Bisguier vs K Rogoff, 1975
(B30) Sicilian, 19 moves, 1/2-1/2
K Commons vs Browne, 1975
(A43) Old Benoni, 17 moves, 1/2-1/2
Lombardy vs Kavalek, 1975
(C69) Ruy Lopez, Exchange, Gligoric Variation, 17 moves, 1/2-1/2
J Peters vs E Mednis, 1975
(C05) French, Tarrasch, 18 moves, 1/2-1/2
J Tarjan vs J Grefe, 1975
(E45) Nimzo-Indian, 4.e3, Bronstein (Byrne) Variation, 16 moves, 1/2-1/2
M Vukcevich vs R Byrne, 1975
(C13) French, 22 moves, 1/2-1/2
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