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Player profile

Jach, Antoni

Standard: 1604 Rapid: 1530 Blitz: 1595 (last updated 2026-10-29)
FIDE ID: 21030456 (view FIDE profile)
Federation: POL Sex: M Birth Year: 2011 Age: 15
Title: — Women's title: — Other title: — FOA title: —
Games: 29 Wins: 5 (17%) Draws: 6 (21%) Losses: 18 (62%)
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Dossier

24 of 29 games analyzed.

Accuracy: 86.6%
Opened d4: 10/11Opened e4: 1/11
Castled kingside: 19Same-side castling: 17Did not castle: 4Opposite-side castling: 2Castled queenside: 1
Played in the center: 12Played on the queenside: 9Fianchettoed queenside: 6Fianchettoed kingside: 4Played on the kingside: 3
Kept the bishop pair: 16Backward pawn: 14Active pieces: 14Missed tactics: 12Space advantage: 12Avoided exchanges: 11Sacrificed material: 9Initiated exchanges: 9Isolated pawn: 8Played gambits: 1
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Openings

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As White 14 games 2W 5D 7L
Benoni Defense 3 games 0W 1D 2L
Classical Variation 2 games 0W 0D 2L
Czerniak Defense 1 game 0W 0D 1L
Czerniak Defense, Tal Line 1 game 0W 0D 1L
Hromádka System 1 game 0W 1D 0L
(unspecified) 1 game 0W 1D 0L
Queen's Gambit Declined 3 games 0W 2D 1L
Semi-Tarrasch Defense 1 game 0W 1D 0L
(unspecified) 1 game 0W 1D 0L
Harrwitz Attack 1 game 0W 0D 1L
(unspecified) 1 game 0W 0D 1L
Orthodox Defense 1 game 0W 1D 0L
Botvinnik Variation 1 game 0W 1D 0L
King's Indian Defense 2 games 0W 0D 2L
Orthodox Variation 2 games 0W 0D 2L
Positional Defense 1 game 0W 0D 1L
Gligoric-Taimanov System 1 game 0W 0D 1L
Slav Defense 1 game 0W 0D 1L
(unspecified) 1 game 0W 0D 1L
(unspecified) 1 game 0W 0D 1L
Queen's Pawn Game 1 game 0W 0D 1L
Rossolimo Variation 1 game 0W 0D 1L
(unspecified) 1 game 0W 0D 1L
Queen's Indian Defense 1 game 0W 1D 0L
Classical Variation 1 game 0W 1D 0L
Traditional Variation 1 game 0W 1D 0L
Semi-Slav Defense 1 game 1W 0D 0L
Main Line 1 game 1W 0D 0L
(unspecified) 1 game 1W 0D 0L
Dutch Defense 1 game 1W 0D 0L
Hopton Attack 1 game 1W 0D 0L
(unspecified) 1 game 1W 0D 0L
Sicilian Defense 1 game 0W 1D 0L
Kan Variation 1 game 0W 1D 0L
Knight Variation 1 game 0W 1D 0L
As Black 15 games 3W 1D 11L
French Defense 10 games 2W 0D 8L
Exchange Variation 2 games 0W 0D 2L
Monte Carlo Variation 1 game 0W 0D 1L
(unspecified) 1 game 0W 0D 1L
Advance Variation 2 games 0W 0D 2L
Main Line 1 game 0W 0D 1L
Milner-Barry Gambit, Hector Variation 1 game 0W 0D 1L
Winawer Variation 2 games 1W 0D 1L
Warsaw Variation 1 game 0W 0D 1L
Alekhine-Maróczy Gambit 1 game 1W 0D 0L
Tarrasch Variation 2 games 1W 0D 1L
Chistyakov Defense 1 game 1W 0D 0L
Guimard Defense 1 game 0W 0D 1L
Horwitz Attack 1 game 0W 0D 1L
Papa-Ticulat Gambit 1 game 0W 0D 1L
Wing Gambit 1 game 0W 0D 1L
(unspecified) 1 game 0W 0D 1L
King's Indian Defense 1 game 0W 0D 1L
Fianchetto Variation 1 game 0W 0D 1L
Classical Fianchetto 1 game 0W 0D 1L
Queen's Pawn Game 1 game 1W 0D 0L
London System 1 game 1W 0D 0L
(unspecified) 1 game 1W 0D 0L
Queen's Gambit Declined 1 game 0W 0D 1L
Cambridge Springs Defense 1 game 0W 0D 1L
(unspecified) 1 game 0W 0D 1L
Nimzo-Indian Defense 1 game 0W 1D 0L
(unspecified) 1 game 0W 1D 0L
(unspecified) 1 game 0W 1D 0L
King's Indian Attack 1 game 0W 0D 1L
(unspecified) 1 game 0W 0D 1L
(unspecified) 1 game 0W 0D 1L
Blunders Top 4 of 143

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

2026.05.25 · 31... Qxc5 (−56.1% win chance) 1-0
Jach, Antoni
Penar, Marcin
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2024.05.30 · 68. Ka6 (−44.2% win chance) 1/2-1/2
Nowicki, Franciszek
Jach, Antoni
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2025.06.11 · 44. Kxa5 (−43.3% win chance) 1/2-1/2
Kolesnik, Piotr
Jach, Antoni
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2025.06.14 · 39. gxh5 (−43.1% win chance) 1/2-1/2
Marciniak, Bartosz
Jach, Antoni
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View blunders & mistakes
Games Showing all 29 games
Date Event Round Color Opponent Result Accuracy % First moves