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Player profile

Koehler, Ronald

Standard: 2160 Rapid: 2048 Blitz: 0 (last updated 2026-11-02)
FIDE ID: 4623673 (view FIDE profile)
Federation: GER Sex: M Birth Year: 1967 Age: 59
Title: — Women's title: — Other title: — FOA title: —
Games: 12 Wins: 4 (33%) Draws: 4 (33%) Losses: 4 (33%)
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Dossier

12 of 12 games analyzed.

Accuracy: 87.5%
Opened d4: 6/6
Castled kingside: 10Same-side castling: 9Opposite-side castling: 2Did not castle: 1Castled queenside: 1
Fianchettoed kingside: 4Played in the center: 4Played on the kingside: 3Played on the queenside: 2Fianchettoed queenside: 1
Space advantage: 9Initiated exchanges: 9Isolated pawn: 8Backward pawn: 8Active pieces: 6Sacrificed material: 5Kept the bishop pair: 4Avoided exchanges: 2Missed tactics: 2Accepted short draws: 1
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Openings

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As White 6 games 3W 2D 1L
King's Indian Defense 2 games 1W 0D 1L
Orthodox Variation 2 games 1W 0D 1L
Bayonet Attack, Sokolov's Line 1 game 1W 0D 0L
Positional Defense 1 game 0W 0D 1L
Queen's Gambit Declined 2 games 1W 1D 0L
Semi-Tarrasch Defense 1 game 1W 0D 0L
(unspecified) 1 game 1W 0D 0L
Cambridge Springs Defense 1 game 0W 1D 0L
Rubinstein Variation 1 game 0W 1D 0L
Benoni Defense 1 game 1W 0D 0L
Knight's Tour Variation 1 game 1W 0D 0L
(unspecified) 1 game 1W 0D 0L
Queen's Gambit Accepted 1 game 0W 1D 0L
(unspecified) 1 game 0W 1D 0L
(unspecified) 1 game 0W 1D 0L
As Black 6 games 1W 2D 3L
Sicilian Defense 4 games 1W 1D 2L
Closed 2 games 1W 0D 1L
Chameleon Variation 1 game 0W 0D 1L
Traditional 1 game 1W 0D 0L
Alapin Variation 1 game 0W 1D 0L
Smith-Morra Declined 1 game 0W 1D 0L
Nyezhmetdinov-Rossolimo Attack 1 game 0W 0D 1L
(unspecified) 1 game 0W 0D 1L
Queen's Pawn Game 1 game 0W 1D 0L
Colle System 1 game 0W 1D 0L
Anti-Colle 1 game 0W 1D 0L
Réti Opening 1 game 0W 0D 1L
Anglo-Slav Variation 1 game 0W 0D 1L
Gurevich System 1 game 0W 0D 1L
Blunders Top 4 of 71

This player's costliest moves in analyzed games. Can you find the winning move?

2025.11.11 · 52. Rg7 (−41.4% win chance) 0-1
Mascarell Canet, Ricardo
Koehler, Ronald
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2026.09.08 · 41... Ra8 (−39.1% win chance) 1/2-1/2
Koehler, Ronald
Kobal, Nazarij
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2026.09.11 · 37. Kh1 (−36.5% win chance) 1-0
Fezza, Davide
Koehler, Ronald
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2026.09.11 · 52. Qa8 (−32.3% win chance) 1-0
Fezza, Davide
Koehler, Ronald
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Games Showing all 12 games
Date Event Round Color Opponent Result Accuracy % First moves