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Player profile

Jandacek, Krystof

Standard: 1924 Rapid: 1974 Blitz: 1854 (last updated 2026-11-02)
FIDE ID: 23780800 (view FIDE profile)
Federation: CZE
Federation: CZE Sex: M Birth Year: 2012 Age: 14
Title: — Women's title: — Other title: — FOA title: —
Games: 65 Wins: 25 (38%) Draws: 20 (31%) Losses: 20 (31%)
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Dossier

56 of 65 games analyzed.

Accuracy: 87.2%
Opened e4: 24/27Opened Nf3: 1/27Opened g3: 1/27Opened d4: 1/27
Castled kingside: 40Same-side castling: 35Did not castle: 10Castled queenside: 6Opposite-side castling: 5
Fianchettoed kingside: 26Played in the center: 24Played on the kingside: 18Fianchettoed queenside: 8Played on the queenside: 6
Kept the bishop pair: 41Active pieces: 38Sacrificed material: 37Initiated exchanges: 34Space advantage: 31Isolated pawn: 29Backward pawn: 28Missed tactics: 23Avoided exchanges: 10Played gambits: 5
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Openings

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As White 32 games 16W 7D 9L
Sicilian Defense 13 games 7W 3D 3L
Mengarini Variation 13 games 7W 3D 3L
(unspecified) 13 games 7W 3D 3L
French Defense 9 games 5W 3D 1L
Advance Variation 5 games 2W 2D 1L
Euwe Variation 2 games 0W 2D 0L
Milner-Barry Gambit, Hector Variation 2 games 2W 0D 0L
Main Line 1 game 0W 0D 1L
Horwitz Attack 3 games 2W 1D 0L
Papa-Ticulat Gambit 2 games 1W 1D 0L
(unspecified) 1 game 1W 0D 0L
Winawer Variation 1 game 1W 0D 0L
Bogoljubow Variation 1 game 1W 0D 0L
Vienna Game 2 games 2W 0D 0L
(unspecified) 1 game 1W 0D 0L
(unspecified) 1 game 1W 0D 0L
Falkbeer Variation 1 game 1W 0D 0L
(unspecified) 1 game 1W 0D 0L
Caro-Kann Defense 2 games 1W 0D 1L
Endgame Offer 2 games 1W 0D 1L
(unspecified) 2 games 1W 0D 1L
Neo-Grünfeld Defense 1 game 0W 1D 0L
Classical Variation 1 game 0W 1D 0L
Original Defense 1 game 0W 1D 0L
King's Indian Defense 1 game 0W 0D 1L
Normal Variation 1 game 0W 0D 1L
Rare Defenses 1 game 0W 0D 1L
King's Indian Attack 1 game 1W 0D 0L
French Variation 1 game 1W 0D 0L
(unspecified) 1 game 1W 0D 0L
Benoni Defense 1 game 0W 0D 1L
Classical Variation 1 game 0W 0D 1L
Main Line 1 game 0W 0D 1L
Bishop's Opening 1 game 0W 0D 1L
Vienna Hybrid 1 game 0W 0D 1L
Hromádka Variation 1 game 0W 0D 1L
Scandinavian Defense 1 game 0W 0D 1L
(unspecified) 1 game 0W 0D 1L
(unspecified) 1 game 0W 0D 1L
As Black 33 games 9W 13D 11L
King's Indian Defense 5 games 0W 3D 2L
Normal Variation 1 game 0W 0D 1L
(unspecified) 1 game 0W 0D 1L
Sämisch Variation 1 game 0W 1D 0L
Sämisch Gambit 1 game 0W 1D 0L
Orthodox Variation 1 game 0W 0D 1L
Positional Defense, Closed Line 1 game 0W 0D 1L
Four Pawns Attack 1 game 0W 1D 0L
(unspecified) 1 game 0W 1D 0L
Makogonov Variation 1 game 0W 1D 0L
(unspecified) 1 game 0W 1D 0L
Ruy Lopez 5 games 2W 2D 1L
Open 3 games 1W 1D 1L
(unspecified) 3 games 1W 1D 1L
Exchange 1 game 0W 1D 0L
Alekhine Variation 1 game 0W 1D 0L
Morphy Defense 1 game 1W 0D 0L
Mackenzie Variation 1 game 1W 0D 0L
Pirc Defense 5 games 1W 1D 3L
Austrian Attack 1 game 1W 0D 0L
Weiss Variation 1 game 1W 0D 0L
Classical Variation 1 game 0W 0D 1L
Quiet System 1 game 0W 0D 1L
150 Attack 1 game 0W 0D 1L
(unspecified) 1 game 0W 0D 1L
Byrne Variation 1 game 0W 0D 1L
(unspecified) 1 game 0W 0D 1L
(unspecified) 1 game 0W 1D 0L
(unspecified) 1 game 0W 1D 0L
Italian Game 2 games 1W 1D 0L
Two Knights Defense 2 games 1W 1D 0L
Modern Bishop's Opening 2 games 1W 1D 0L
Four Knights Game 2 games 0W 2D 0L
Scotch Variation 2 games 0W 2D 0L
Schmid Defense 2 games 0W 2D 0L
Scotch Game 2 games 1W 0D 1L
Schmidt Variation 1 game 1W 0D 0L
(unspecified) 1 game 1W 0D 0L
Scotch Gambit 1 game 0W 0D 1L
Advance Variation 1 game 0W 0D 1L
Sicilian Defense 2 games 0W 2D 0L
Nimzowitsch Variation 2 games 0W 2D 0L
Main Line 1 game 0W 1D 0L
Advance Variation 1 game 0W 1D 0L
English Opening 2 games 0W 1D 1L
Anglo-Indian Defense 2 games 0W 1D 1L
(unspecified) 2 games 0W 1D 1L
Modern Defense 2 games 2W 0D 0L
Standard Defense 1 game 1W 0D 0L
(unspecified) 1 game 1W 0D 0L
Geller's System 1 game 1W 0D 0L
(unspecified) 1 game 1W 0D 0L
Hungarian Opening 1 game 1W 0D 0L
Indian Defense 1 game 1W 0D 0L
(unspecified) 1 game 1W 0D 0L
Benko Gambit Declined 1 game 0W 0D 1L
Main Line 1 game 0W 0D 1L
(unspecified) 1 game 0W 0D 1L
Center Game 1 game 1W 0D 0L
Berger Variation 1 game 1W 0D 0L
(unspecified) 1 game 1W 0D 0L
King's Indian Attack 1 game 0W 0D 1L
Symmetrical Defense 1 game 0W 0D 1L
(unspecified) 1 game 0W 0D 1L
East Indian Defense 1 game 0W 0D 1L
(unspecified) 1 game 0W 0D 1L
(unspecified) 1 game 0W 0D 1L
Queen's Gambit Declined 1 game 0W 1D 0L
Chigorin Defense 1 game 0W 1D 0L
Main Line 1 game 0W 1D 0L
Blunders Top 4 of 299

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

2026.08.29 · 45... Re2 (−77.3% win chance) 1-0
Jandacek, Krystof
Manik, Mikulas
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2025.06.25 · 29... h3 (−72.7% win chance) 1/2-1/2
Jandacek, Krystof
Siska, Jan
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2026.06.22 · 36. Qf4 (−62.6% win chance) 0-1
Vancakova, Veronika
Jandacek, Krystof
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2026.10.30 · 40... Bg7 (−61.2% win chance) 1-0
Jandacek, Krystof
Sochor, Antonin
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View blunders & mistakes
Games Showing all 65 games
Date Event Round Color Opponent Result Accuracy % First moves