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Player profile

Sibl, Vaclav

Standard: 1874 Rapid: 1889 Blitz: 1890 (last updated 2026-11-02)
FIDE ID: 333522 (view FIDE profile)
Federation: CZE Sex: M Birth Year: 1951 Age: 75
Title: — Women's title: — Other title: — FOA title: —
Games: 11 Wins: 3 (27%) Draws: 4 (36%) Losses: 4 (36%)
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Dossier

10 of 11 games analyzed.

Accuracy: 87.5%
Opened d4: 3/3
Castled kingside: 7Same-side castling: 7
Played in the center: 3Played on the queenside: 3Played on the kingside: 2Fianchettoed kingside: 1Fianchettoed queenside: 1
Active pieces: 7Backward pawn: 6Kept the bishop pair: 5Space advantage: 5Sacrificed material: 4Avoided exchanges: 4Missed tactics: 3Initiated exchanges: 2Isolated pawn: 1
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Openings

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As White 4 games 1W 1D 2L
Queen's Pawn Game 2 games 1W 1D 0L
London System 2 games 1W 1D 0L
(unspecified) 1 game 0W 1D 0L
with e6 1 game 1W 0D 0L
Indian Defense 2 games 0W 0D 2L
Accelerated London System 2 games 0W 0D 2L
(unspecified) 2 games 0W 0D 2L
As Black 4 games 2W 1D 1L
Philidor Defense 3 games 2W 1D 0L
Lion Variation 3 games 2W 1D 0L
(unspecified) 3 games 2W 1D 0L
English Opening 1 game 0W 0D 1L
King's English Variation 1 game 0W 0D 1L
(unspecified) 1 game 0W 0D 1L
Blunders Top 4 of 50

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

2026.05.17 · 29... Rfe8 (−52.8% win chance) 1-0
Sibl, Vaclav
Janousek, Ladislav
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2026.05.17 · 23... Rfh5 (−48% win chance) 1/2-1/2
Sibl, Vaclav
Dziuba, Dariia
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2026.05.17 · 53... Ke5 (−28.6% win chance) 1/2-1/2
Sibl, Vaclav
Dziuba, Dariia
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2026.05.17 · 33... Rxh2+ (−22.7% win chance) 1/2-1/2
Sibl, Vaclav
Dziuba, Dariia
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Games Showing all 11 games
Date Event Round Color Opponent Result Accuracy % First moves