Kosten, A

Last game 2026

Prep vs WhitePrep vs Black

Rating

peak 2479 · latest 2374
23002400250020132016201920222025
Games
142
Wins
46
Draws
69
Losses
27
Peak Elo
2479
56.7% score

As White

A15English Opening: Anglo-Indian Defense757.1%
A29English Opening: King's English Variation, Four Knights Variation, Fianchetto Line560.0%
A20English Opening: King's English Variation590.0%
A13English Opening: Agincourt Defense550.0%
A05King's Indian Attack475.0%
A14English Opening: Agincourt Defense, Neo-Catalan Declined462.5%
A37English Opening: Symmetrical Variation, Botvinnik System Reversed, with Nf3475.0%
A36English Opening: Symmetrical Variation, Ultra-Symmetrical Variation275.0%
C41Philidor Defense: Lion Variation2100.0%

As Black

E11Bogo-Indian Defense: Exchange Variation1241.7%
E32Nimzo-Indian Defense: Classical Variation475.0%
C54Italian Game: Classical Variation, Giuoco Pianissimo437.5%
E14Queen's Indian Defense, with e3350.0%
C70Ruy Lopez: Morphy Defense, Classical Defense Deferred333.3%
A07King's Indian Attack, with e6350.0%
C60Ruy Lopez: Cozio Defense366.7%

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