Jan Sosna

Thumbnail photo of Jan Sosna
Fide Id304379
CZE Id202
TitleInternational Master
FederationCzech Republic fed
FIDE Elo2350 
Highest 2441 (October 2003)
URS Rating2325 
National Elo2363
Born 14.Oct.1960  (Age 58)
ClubSk Slavoj Poruba
 Ranking: World #3426, Europe #2610, Czech Republic #79
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Chess games of Jan Sosna:    PGN Database (JanSosna.pgn)  [512 games]

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Play Style

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Play chess against Jan Sosna (computer simulated play style): with white or black.
Opening (White) Realtime (beta)Opening (Black) Realtime (beta)
Queen's pawn (48%): D02 D03 D02 A40 A45 A40Queen's gambit (28%): D35 D31 D30 D53 D11 D10
King's Indian, East Indian (20%): A48 A48 A48Ruy Lopez (23%): C63 C65 C63 C65 C63 C63
Sicilian defence (10%): B52 B52 B31 B30 B51 B40Reti (9%): A06 A04 A09 A09 A07
French defence (5%): C10 C09 C05 C04 C01 C03Queen's pawn (7%): A46 D02 D03 D02 D00 D02
Two knights defence (3%): C58 C58 C57 C57 C55English (6%): A11 A10 A15 A13 A13 A13
Play tendenciesEndgame tendencies
Sacrifices: Not availableAverage draws at: Move #41 (details)
Blunders (): Explore blunders Optimal play:   99.6%  [what is this?]
Positional player: Not available Optimal checkmate:   58.53%  [what is this?]
Exchange tendencies: +0.84 (details) Endgame blunders: Explore blunders
Stockfish first line: Not available [calculate] Strength:         
Quality of play:  86.04 (games[what is this?] Exploitive analysis: Not available
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Live Games

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Chess Games

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Rating History ()

The graph shows Jan Sosna's rating history vs. the World #100 (age considered) for each rating period (read more ...)

Tournament History

Sources:,,,, others coming soon.

Tournament (Click on name for details) VenueDate
3rd Liga A2 R5 Slovakia2015.12.201640
1st Liga Vychod r5 Czech Republic2015.12.132110
2nd Liga Skupina A R5-6 Slovakia2015.12.052000
tht Extraliga r3-4 Czech Republic2015.12.052360
3rd Liga A2 R4 Slovakia2015.11.291650
1st Liga Vychod r3-4 Czech Republic2015.11.152110
3rd Liga A2 R3 Slovakia2015.11.151650
tht Extraliga r1-2 Czech Republic2015.11.072360
2nd Liga Skupina A R3-4 Slovakia2015.11.072000
2nd Liga Skupina A R1-2 Slovakia2015.10.172000
3rd Liga A2 R1-2 Slovakia2015.10.111650
1st Liga Vychod r1-2 Czech Republic2015.10.112110
    (106 more)
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