Jan Sosna

Country

CZE

Birth Year

1960

Gender

M

Title

International Master

FIDE ID

304379

FIDE ratings

2283

Classical

Published FIDE

2300

Rapid

Published FIDE

2425

Blitz

Published FIDE

Official classical ranks

World rank
#4654
National rank · CZE
#116

Active players · Oct 2026 FIDE list ⓘ

Rating history

Highest recorded rating
2441 Oct 2003
Recorded years
2001–2026
Archived games
169

Based on available monthly lists and saved games.

FIDE rating history

Published rating lists through Oct 2026.

View rating lists
Available Games

Published games available in our archive; coverage varies by tournament. Archive last checked: 2026-10-08 (UTC).

# Date Event Site Round White Black Result Moves View
101 2016-01-17 TCh-CZE 1 Liga Vychod Czech Republic CZE 6.2 Pavel Simacek Jan Sosna 1-0 36 Open
102 2016-01-10 TCh-CZE Extraliga 2015-16 Czech Republic CZE 6.6 Pavel Blatny Jan Sosna 0-1 62 Open
103 2016-01-09 TCh-CZE Extraliga 2015-16 Czech Republic CZE 5.6 Vladimir Belunek Jan Sosna 0-1 33 Open
104 2015-12-13 TCh-CZE 1 Liga Vychod Czech Republic CZE 5.3 Jan Malik Jan Sosna 0-1 36 Open
105 2015-11-15 TCh-CZE 1 Liga Vychod Czech Republic CZE 3.3 Jan Sosna Jaroslav Olsar 1/2-1/2 29 Open
106 2015-10-11 TCh-CZE 1 Liga Vychod Czech Republic CZE 1.2 Martin Blahynka Jan Sosna 1-0 29 Open
107 2015-07-11 40th Vsetin Open 2015 Vsetin CZE 9.6 Jan Sosna Vladimir Belunek 1/2-1/2 42 Open
108 2015-07-10 40th Vsetin Open 2015 Vsetin CZE 8.7 Martin Horak Jan Sosna 0-1 25 Open
109 2015-07-09 40th Vsetin Open 2015 Vsetin CZE 7.13 Jan Sosna Patrik Stepan 1-0 47 Open
110 2015-07-08 40th Vsetin Open 2015 Vsetin CZE 6.17 Radek Zadrapa Jan Sosna 0-1 36 Open
111 2015-07-07 40th Vsetin Open 2015 Vsetin CZE 5.9 Jan Sosna Kamil Koziol 0-1 42 Open
112 2015-07-06 40th Vsetin Open 2015 Vsetin CZE 4.18 312711 Jan Sosna 0-1 55 Open
113 2015-07-06 40th Vsetin Open 2015 Vsetin CZE 3.28 Jan Sosna Jakub Krejca 1-0 42 Open
114 2015-07-05 40th Vsetin Open 2015 Vsetin CZE 2.17 Lucie Charvatova Jan Sosna 1-0 33 Open
115 2015-07-04 40th Vsetin Open 2015 Vsetin CZE 1.9 Jan Sosna Lukas Lysek 1/2-1/2 41 Open
116 2015-04-12 TCh-CZE 1 Liga Vychod Prague CZE 11.3 Neklan Vyskocil Jan Sosna 0-1 29 Open
117 2015-03-29 TCh-CZE Extraliga 2014-15 Prague CZE 11.2 Jan Sosna Eduard Meduna 0-1 30 Open
118 2015-03-28 TCh-CZE Extraliga 2014-15 Prague CZE 10.2 Epameinondas Kourousis Jan Sosna 1/2-1/2 24 Open
119 2015-03-22 TCh-CZE 1 Liga Vychod Prague CZE 10.2 Vlastimil Nedela Jan Sosna 1/2-1/2 32 Open
120 2015-03-01 TCh-CZE 1 Liga Vychod Prague CZE 9.3 Radek Sluka Jan Sosna 0-1 42 Open
121 2015-02-15 TCh-CZE 1 Liga Vychod Prague CZE 8.3 Jan Sosna Adam Rubal 1/2-1/2 47 Open
122 2015-02-01 TCh-CZE 1 Liga Vychod Prague CZE 7.3 Piotr Goluch Jan Sosna 1-0 43 Open
123 2015-01-04 TCh-CZE 1 Liga Vychod Prague CZE 5.3 Elena Potapova Jan Sosna 0-1 28 Open
124 2014-12-07 TCh-CZE 1 Liga Vychod Prague CZE 4.3 Jan Sosna Marek Nabelek 1/2-1/2 55 Open
125 2014-11-30 TCh-CZE Extraliga 2014-15 Prague CZE 4.3 Jan Sosna Petr Neuman 0-1 61 Open
126 2014-11-29 TCh-CZE Extraliga 2014-15 Prague CZE 3.4 Jan Machan Jan Sosna 1-0 66 Open
127 2014-11-23 TCh-CZE 1 Liga Vychod Prague CZE 3.3 Stanislav Jasny Jan Sosna 1/2-1/2 56 Open
128 2014-11-09 TCh-CZE 1 Liga Vychod Prague CZE 2.2 Pavel Simacek Jan Sosna 0-1 26 Open
129 2014-11-02 TCh-CZE Extraliga 2014-15 Prague CZE 2.6 Jan Sosna Pavel Zpevak 0-1 40 Open
130 2014-11-01 TCh-CZE Extraliga 2014-15 Prague CZE 1.6 Stanislav Jasny Jan Sosna 1-0 90 Open
131 2014-10-19 TCh-CZE 1 Liga Vychod Prague CZE 1.3 Jan Sosna Josef Mudrak 1-0 25 Open
132 2014-03-30 TCh-CZE Vychod 2013-14 Czech Rep CZE 10.2 Lukasz Butkiewicz Jan Sosna 0-1 41 Open
133 2014-03-23 TCh-CZE Extraliga 2013-14 Frydek-Mistek CZE 11.7 Stanislav Jasny Jan Sosna 1-0 35 Open
134 2014-03-22 TCh-CZE Extraliga 2013-14 Grygov CZE 10.7 Jan Sosna Richard Biolek 1/2-1/2 9 Open
135 2014-03-21 TCh-CZE Extraliga 2013-14 Ostrava CZE 9.6 Jan Sosna 301175 1/2-1/2 29 Open
136 2014-03-16 TCh-CZE Vychod 2013-14 Czech Rep CZE 9.3 Jan Sosna Michal Novotny 0-1 41 Open
137 2014-02-23 TCh-CZE Vychod 2013-14 Czech Rep CZE 8.3 Andrej Seitler Jan Sosna 0-1 24 Open
138 2014-02-16 TCh-CZE Extraliga 2013-14 Poruba CZE 8.7 Pavel Vavra Jan Sosna 0-1 42 Open
139 2014-02-15 TCh-CZE Extraliga 2013-14 Poruba CZE 7.7 Jan Sosna 300110 1/2-1/2 33 Open
140 2014-02-09 TCh-CZE Vychod 2013-14 Czech Rep CZE 7.3 Jan Sosna Tomas Polak 1/2-1/2 44 Open
141 2014-01-26 TCh-CZE Vychod 2013-14 Czech Rep CZE 6.3 Jaromir Bednar Jan Sosna 1/2-1/2 74 Open
142 2014-01-19 TCh-CZE Extraliga 2013-14 Litovel CZE 6.7 Jan Sosna Pavel Zpevak 1-0 55 Open
143 2014-01-18 TCh-CZE Extraliga 2013-14 Pardubice CZE 5.7 Milos Jirovsky Jan Sosna 0-1 29 Open
144 2014-01-12 TCh-CZE Vychod 2013-14 Czech Rep CZE 5.3 Jan Sosna Pavel Nemec 0-1 46 Open
145 2013-11-10 TCh-CZE Vychod 2013-14 Czech Rep CZE 2.3 Jakub Szotkowski Jan Sosna 1-0 27 Open
146 2013-11-03 TCh-CZE Extraliga 2013-14 Trinec CZE 2.7 Jan Sosna Ladislav Langner 1/2-1/2 42 Open
147 2013-11-02 TCh-CZE Extraliga 2013-14 Karvina CZE 1.7 Jaroslav Olsar Jan Sosna 1/2-1/2 31 Open
148 2013-04-28 TCh-CZE Extraliga 2012-13 Czech Republic CZE 11.5 Igors Rausis Jan Sosna 1-0 55 Open
149 2013-04-27 TCh-CZE Extraliga 2012-13 Czech Republic CZE 10.5 Jan Sosna Petr Pisk 1/2-1/2 15 Open
150 2013-04-26 TCh-CZE Extraliga 2012-13 Czech Republic CZE 9.5 Petr Velicka Jan Sosna 1-0 73 Open

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