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Tjong, Zach Alexander

Standard: 1681 Rapid: 1580 Blitz: 1687 (last updated 2026-10-02)
FIDE ID: 365105319 (view FIDE profile)
Federation: INA Sex: M Birth Year: 2017 Age: 9
Title: — Women's title: — Other title: — FOA title: AFM
Games: 25 Wins: 12 (48%) Draws: 2 (8%) Losses: 11 (44%)
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Dossier

19 of 25 games analyzed.

Accuracy: 91.9%
Opened e4: 8/9Opened d4: 1/9
Castled kingside: 11Same-side castling: 9Did not castle: 2Castled queenside: 1Opposite-side castling: 1
Played on the kingside: 6Played in the center: 5Fianchettoed kingside: 3Fianchettoed queenside: 2Played on the queenside: 2
Active pieces: 13Initiated exchanges: 13Kept the bishop pair: 9Sacrificed material: 9Backward pawn: 7Isolated pawn: 4Space advantage: 4Missed tactics: 3Avoided exchanges: 1Played gambits: 1
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Openings

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As White 10 games 7W 1D 2L
Sicilian Defense 7 games 6W 1D 0L
Closed 5 games 4W 1D 0L
(unspecified) 4 games 3W 1D 0L
Traditional 1 game 1W 0D 0L
Delayed Alapin Variation 1 game 1W 0D 0L
Basman-Palatnik Gambit 1 game 1W 0D 0L
Grand Prix Attack 1 game 1W 0D 0L
(unspecified) 1 game 1W 0D 0L
Modern Defense 1 game 0W 0D 1L
Standard Line 1 game 0W 0D 1L
(unspecified) 1 game 0W 0D 1L
Rapport-Jobava System 1 game 1W 0D 0L
(unspecified) 1 game 1W 0D 0L
(unspecified) 1 game 1W 0D 0L
Caro-Kann Defense 1 game 0W 0D 1L
Exchange Variation 1 game 0W 0D 1L
(unspecified) 1 game 0W 0D 1L
As Black 8 games 3W 1D 4L
Caro-Kann Defense 5 games 0W 1D 4L
Advance Variation 2 games 0W 1D 1L
Botvinnik-Carls Defense 2 games 0W 1D 1L
Endgame Offer 1 game 0W 0D 1L
(unspecified) 1 game 0W 0D 1L
Tartakower Variation 1 game 0W 0D 1L
(unspecified) 1 game 0W 0D 1L
Accelerated Panov Attack 1 game 0W 0D 1L
(unspecified) 1 game 0W 0D 1L
Grünfeld Defense 2 games 2W 0D 0L
Three Knights Variation 1 game 1W 0D 0L
Burille Variation 1 game 1W 0D 0L
Exchange Variation 1 game 1W 0D 0L
Nadanian Attack 1 game 1W 0D 0L
Zukertort Opening 1 game 1W 0D 0L
(unspecified) 1 game 1W 0D 0L
(unspecified) 1 game 1W 0D 0L
Blunders Top 4 of 77

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

2025.09.24 · 42... Rc3 (−44.9% win chance) 1-0
Tjong, Zach Alexander
Daulet, Darmenyar
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2025.07.22 · 29. Rb4 (−35.8% win chance) 0-1
Chong, Jake
Tjong, Zach Alexander
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2025.07.22 · 30. Qe3 (−31.7% win chance) 0-1
Chong, Jake
Tjong, Zach Alexander
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2025.09.23 · 22. Bc3 (−24.3% win chance) 0-1
Zhang, Beichen
Tjong, Zach Alexander
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Games Showing all 25 games
Date Event Round Color Opponent Result Accuracy % First moves