Koster, R

Last game 2026

Prep vs WhitePrep vs Black

Rating

peak 2335 · latest 2296
225023002350240020252026
Games
58
Wins
27
Draws
17
Losses
14
Peak Elo
2335
61.2% score

As White

A57Benko Gambit Accepted: Modern Variation350.0%
E47Nimzo-Indian Defense: Normal Variation366.7%
A40English Defense250.0%
E49Nimzo-Indian Defense: Normal Variation, Botvinnik System275.0%
D35Queen's Gambit Declined: Exchange Variation, Positional Variation275.0%
D86Grünfeld Defense: Exchange Variation, Classical Variation2100.0%
E43Nimzo-Indian Defense: St. Petersburg Variation2100.0%
E44Nimzo-Indian Defense: St. Petersburg Variation, American Variation275.0%

As Black

B90Sicilian Defense: Najdorf Variation, Adams Attack658.3%
B12Caro-Kann Defense: Advance Variation, Botvinnik-Carls Defense350.0%
D10Slav Defense383.3%
D19Slav Defense: Czech Variation, Classical System, Main Line225.0%
B22Sicilian Defense: Alapin Variation250.0%
D11Slav Defense: Modern Line275.0%

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