Czech RepublicCZE
ID: 314692

Jan Bosak

FIDE ratings

2,045Classical
2,021Rapid
2,017Blitz

Performance

50 games
50% Win
12% Draw
38% Loss

Jan Bosak's playing style

Strong overall score:56%25W 6D 19L over 50 games
Best with e4 vs 1.e4/1.d4 as Black:43%in 21 games
Struggles in the French Defense as Black:40%in 15 games
Strongest in classical:54%in 48 games
Steady recent form:60%11W 2D 7L in last 20 games

Openings as White

Among the openings shown, French Defense: Advance Variation, Euwe Variation has the largest White sample, with 3 games. Select a row to explore its moves and inspect example games below.

French Defense: Advance Variation, Euwe Variation
100%
3g
Sicilian Defense: Alapin Variation
100%
3g
English Opening: Anglo-Indian Defense, Anglo-Grünfeld Variation
100%
2g

Openings as Black

Among the openings shown, French Defense: Tarrasch Variation, Modern System has the largest Black sample, with 8 games. These results describe the available sample, not a prediction of the player’s next choice.

French Defense: Tarrasch Variation, Modern System
100%
8g
Ruy Lopez: Morphy Defense, Arkhangelsk Variation
100%
3g
French Defense: Exchange Variation
100%
3g
Grünfeld Defense: Exchange Variation
100%
2g
Réti Opening: Réti Accepted
100%
2g

Repertoire

23 games as white in scope
8
7
6
5
4
3
2
a1
b
c
d
e
f
g
h
Move arrowsfrequency, not engine evaluation

Starting position

23 games in this line · White to move

Results for Bosak, Jan as white · Wins / Draws / Losses

W / D / L
70%
22%
9%
Move
10 · 43%
60%
20%
20%
7 · 30%
57%
43%
6 · 26%
100%

Game History

(50 games)
DateSourceColorOpponentResultLink
Aug 13, 2026
OTB
Iankin, Arsenii(2163)
L—
Apr 2, 2026
OTB - LichessBroadcast
FMBokhnak, Tymofii(2223)
L—
Apr 2, 2026
OTB - LichessBroadcast
Stochnialek, Dominika(1899)
W—
Apr 2, 2026
OTB - LichessBroadcast
Pistek, Zdenek(1758)
W—
Apr 2, 2026
OTB - LichessBroadcast
FMBokhnak, Tymofii(2239)
L—
Apr 2, 2026
OTB - LichessBroadcast
Pistek, Zdenek(1760)
W—
Apr 2, 2026
OTB - LichessBroadcast
Ramis, Ondrej(1954)
W—
Apr 2, 2026
OTB - LichessBroadcast
Stochnialek, Dominika(1903)
W—
Apr 2, 2026
OTB - LichessBroadcast
Pistek, Zdenek(1758)
W—
Apr 2, 2026
OTB - LichessBroadcast
Ramis, Ondrej(1959)
W—

Research Jan Bosak’s games and opening repertoire

Jan Bosak is rated 2045 in standard, 2021 in rapid, 2017 in blitz by FIDE. Jan Bosak plays for Czech Republic.

Jan Bosak has FIDE ID 314692.

Check the official FIDE record for ratings and identity. It is not a complete archive of game moves.

Use the openings as White and Black to identify recurring choices in the available games. Follow a branch into the repertoire explorer and inspect example games in the game history. Dates, time controls and sources affect which patterns are relevant to your next match.

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