Master Challenge 12th
USA 1990
| Date | Players | Type | Elo Average | Games | Rounds |
| 1990 | 33 | Swiss | 563 | 25 | 5 |
| Name | ELO | Points | ||
|
FM Karklins, Andrew | 2310 | 3.0 | |
|
Umezinwa, George | 3.0 | ||
|
GM Gurevich, Dmitry | 2470 | 2.0 | |
|
IM Burnett, Ronald | 2305 | 2.0 | |
|
FM Chow, Albert | 2300 | 2.0 | |
|
FM Chachere, Lawrence | 2280 | 1.5 | |
|
FM Pelts, Peter | 2260 | 1.0 | |
 |
Milicevic, Predrag | 2235 | 1.0 | |
| Lyons, D. | 1.0 | |||
| Jochim, G. | 1.0 | |||
| Wachtel, Howard | 1.0 | |||
| Smythe, B. | 1.0 | |||
|
Smith, Kenneth R | 1.0 | ||
 |
Pandis, Ippokratis | 1.0 | ||
| Hanson, S. | 1.0 | |||
| Kraii, J. | 1.0 | |||
|
FM Bachler, Kevin | 1.0 | ||
|
FM Wheeler, Jerry | 0.5 | ||
 |
IM Basin, Leonid | 2435 | 0.0 | |
| Rogan, Marvin | 0.0 | |||
| Sollano, E. | 0.0 | |||
| Guraney, A. | 0.0 | |||
| Walhout, P. | 0.0 | |||
|
CM Gratz, Glen | 0.0 | ||
| Stein, Peter | 0.0 | |||
| Enochs, J. | 0.0 | |||
| Ingram, A. | 0.0 | |||
| Avery, Robert William | 0.0 | |||
 |
Jordan, Rafael | 0.0 | ||
|
Brock, William | 0.0 | ||
| Hamedani, | 0.0 | |||
| Sandrin, Angelo | 0.0 | |||
| Dzurny, A. | 0.0 | |||
| Name | ELO | Points | ||
|
FM Karklins, Andrew | 2310 | 3.0 | |
|
Umezinwa, George | 3.0 | ||
|
GM Gurevich, Dmitry | 2470 | 2.0 | |
|
IM Burnett, Ronald | 2305 | 2.0 | |
|
FM Chow, Albert | 2300 | 2.0 | |
|
FM Chachere, Lawrence | 2280 | 1.5 | |
|
FM Pelts, Peter | 2260 | 1.0 | |
|
Milicevic, Predrag | 2235 | 1.0 | |
| Lyons, D. | 1.0 | |||
| Jochim, G. | 1.0 | |||
| Wachtel, Howard | 1.0 | |||
| Smythe, B. | 1.0 | |||
|
Smith, Kenneth R | 1.0 | ||
|
Pandis, Ippokratis | 1.0 | ||
| Hanson, S. | 1.0 | |||
| Kraii, J. | 1.0 | |||
|
FM Bachler, Kevin | 1.0 | ||
|
FM Wheeler, Jerry | 0.5 | ||
|
IM Basin, Leonid | 2435 | 0.0 | |
| Rogan, Marvin | 0.0 | |||
| Show full players list | ||||
Master Challenge 12th Games
| White | Black | Result | Round | Date | Opening | View |
| Burnett, R | Guraney, A | 1-0  |
? | 1990 | E69 King's Indian, fianchetto, classical main line |   |
| Chachere, L | Rogan, M | 1-0 |
? | 1990 | A39 English, symmetrical, main line with d4 |   |
| Chow, A | Walhout, P | 1-0 |
? | 1990 | C34 King's gambit accepted | |
| Dzurny, A | Karklins, A | 0-1 |
? | 1990 | E61 King's Indian defence, 3.Nc3 | |
| Enochs, J | Bachler, K | 0-1 |
? | 1990 | E76 King's Indian, Four pawns attack | |
| Gurevich, D | Brock, W | 1-0 |
? | 1990 | E73 King's Indian, 5.Be2 | |
| Gurevich, D | Kraii, J | 0-1 |
? | 1990 | A60 Benoni defence | |
| Gurevich, D | Umezinwa, G | 1-0 |
? | 1990 | E18 Queen's Indian, old main line, 7.Nc3 | |
| Hamedani, | Pandis, I | 0-1 |
? | 1990 | A31 English, symmetrical, Benoni formation | |
| Hanson, S | Avery, R | 1-0 |
? | 1990 | C36 King's Gambit Accepted, Abbazia defence (classical defence, modern defence[!]) | |
| Ingram, A | Umezinwa, G | 0-1 |
? | 1990 | B93 Sicilian, Najdorf, 6.f4 | |
| Jordan, R | Pelts, P | 0-1 |
? | 1990 | A37 English, symmetrical variation | |
| Karklins, A | Chow, A | 0-1 |
? | 1990 | B33 Sicilian defence | |
| Karklins, A | Sandrin, A | 1-0 |
? | 1990 | B43 Sicilian, Kan, 5.Nc3 | |
| Lyons, D | Pandis, I | 1-0 |
? | 1990 | B23 Sicilian, closed | |
| Milicevic, P | Burnett, R | 1-0 |
? | 1990 | B53 Sicilian, Chekhover variation | |
| Milicevic, P | Karklins, A | 0-1 |
? | 1990 | A68 Benoni, four pawns attack | |
| Pandis, I | Jochim, G | 0-1 |
? | 1990 | C06 French, Tarrasch, closed variation, main line | |
| Smith, K | Sollano, E | 1-0 |
? | 1990 | B84 Sicilian, Scheveningen (Paulsen), classical variation | |
| Smythe, B | Pandis, I | 1-0 |
? | 1990 | A58 Benko gambit accepted | |
| Stein, P | Burnett, R | 0-1 |
? | 1990 | B23 Sicilian, closed | |
| Umezinwa, G | Gratz, G | 1-0 |
? | 1990 | A40 Queen's pawn | |
| Umezinwa, G | Walhout, P | 1-0 |
? | 1990 | D68 Queen's Gambit Declined, Orthodox defence, classical variation | |
| Wachtel, H | Basin, L | 1-0 |
? | 1990 | E92 King's Indian, classical variation | |
| Wheeler, J | Chachere, L | ½-½ |
? | 1990 | A88 Dutch, Leningrad, main variation with c6 | |
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