Name: Willem S Koster
Federation:  
Years: 1990 - 2006
Total Games: 59
Wins: 15 (25.42 %)
Draws: 18 (30.51 %)
Losses: 26 (44.07 %)
Score: 40.68 %

Willem S Koster

Last tournaments played

Tournament Date Elo Avg. Country
Trieste op-A 09/02/2006 2062  Italy
NED-ch sf 02/11/2006 2250  Netherlands
Hamburg Junge op 10/01/2005 2086  Germany
Barcelona Sants op 6th 08/28/2004 2278  Spain

Willem S Koster Repertoire with White pieces (most played)

ECO Opening Games
B22 Sicilian, Alapin's variation (2.c3) 7 games
B90 Sicilian, Najdorf 2 games
C15 French, Winawer (Nimzovich) variation 2 games
C47 Four knights, Scotch variation 2 games

Willem S Koster Repertoire with Black pieces (most played)

ECO Opening Games
C42 Petrov's defence 6 games
D85 Gruenfeld, exchange variation 2 games
B01 Scandinavian (centre counter) defence 2 games
A16 English opening 2 games

Games played by Willem S Koster

Download games
White ELO W Black ELO B Result Moves ECO Date Tournament View
Koster, W 2202 Vitri, S 2105 ½-½ 9 B05 2006 Trieste op-A
Cozzarin, D 2062 Koster, W 2202 ½-½ 46 D36 2006 Trieste op-A
Koster, W 2202 Capaliku, A 1-0 41 C45 2006 Trieste op-A
Brunello, R 1863 Koster, W 2202 ½-½ 60 C46 2006 Trieste op-A
Koster, W 2202 Ramesa, D 2249 0-1 23 B22 2006 Trieste op-A
Mazi, L 2350 Koster, W 2202 ½-½ 33 C47 2006 Trieste op-A
Fantini, M 2053 Koster, W 2202 ½-½ 48 D01 2006 Trieste op-A
Koster, W 2202 Cadelli, L 2088 1-0 63 B01 2006 Trieste op-A
Koster, W 2202 Plani, A 1896 ½-½ 39 B21 2006 Trieste op-A
Koster, W 2210 Janssen, R 2499 0-1 41 B22 2006 NED-ch sf
Janssen, R 2499 Koster, W 2210 1-0 38 A16 2006 NED-ch sf
Schmidt Brauns, R 2053 Koster, W 2243 1-0 28 A51 2005 Hamburg Junge op
Koster, W 2243 Lucas, M 2071 0-1 49 B21 2005 Hamburg Junge op
Ewaldt, M 2099 Koster, W 2243 0-1 34 C42 2005 Hamburg Junge op
Colpe, H 2091 Koster, W 2243 1-0 31 D40 2005 Hamburg Junge op
Koster, W 2243 Szudra, H 2012 1-0 33 C15 2005 Hamburg Junge op
Koster, W 2243 Buchholz, R 2016 1-0 30 B01 2005 Hamburg Junge op
Berglitz, R 2076 Koster, W 2243 1-0 36 C42 2005 Hamburg Junge op
Koster, W 2243 Rozentalis, E 2585 0-1 48 C15 2005 Hamburg Junge op
Dalakian, H 1865 Koster, W 2243 0-1 31 C29 2005 Hamburg Junge op
Koster, W 2258 Stocek, J 2557 0-1 43 B22 2004 Barcelona Sants op 6th
Krenek, M 2069 Koster, W 2236 0-1 39 C80 2003 Vienna op 14th
Koster, W 2236 Thoma, W 2155 0-1 50 B22 2003 Vienna op 14th
Koffler, D 2071 Koster, W 2236 0-1 18 C42 2003 Vienna op 14th
Koster, W 2236 Biolek, R 1926 0-1 31 C47 2003 Vienna op 14th
Kilgus, G 2348 Koster, W 2236 ½-½ 54 D72 2003 Vienna op 14th
Koster, W 2236 Guski, D 2091 1-0 31 B22 2003 Vienna op 14th
Trifunovic, D 2045 Koster, W 2236 0-1 38 C22 2003 Vienna op 14th
Koster, W 2236 Neubauer, A 2051 ½-½ 42 C10 2003 Vienna op 14th
Van Buitenen, H Koster, W 2236 1-0 29 C68 2003 Vienna op 14th
Cheparinov, I 2478 Koster, W 2281 1-0 50 C82 2003 Seville op 28th
Saldano, H 2442 Koster, W 2281 1-0 29 D60 2003 Seville op 28th
Saldano Dayer, H 2442 Koster, W 2281 1-0 29 D53 2003 Seville op 28th
Bosch, J 2436 Koster, W 2277 1-0 24 D85 2001 NED-ch sf
Koster, W 2277 Bosch, J 2436 ½-½ 16 A35 2001 NED-ch sf
Vigorito, D 2314 Koster, W 2308 1-0 35 A39 2000 Budapest FS10 IM-B
Koster, W 2308 Bordas, G 2186 ½-½ 25 B22 2000 Budapest FS10 IM-B
Orso, M 2346 Koster, W 2308 1-0 46 D03 2000 Budapest FS10 IM-B
Koster, W 2308 Dudas, J 2338 ½-½ 15 B15 2000 Budapest FS10 IM-B
Berczes, C 2189 Koster, W 2308 1-0 53 C42 2000 Budapest FS10 IM-B
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