Player profile
Jezek, Jiri
Dossier
17 of 22 games analyzed.
Accuracy: 84.5%
Opened d4: 4/6Opened e4: 1/6Opened c4: 1/6
Castled kingside: 7Same-side castling: 5Did not castle: 2Opposite-side castling: 1
Played on the queenside: 5Fianchettoed kingside: 2Played on the kingside: 1Fianchettoed queenside: 1
Space advantage: 6Isolated pawn: 5Kept the bishop pair: 5Initiated exchanges: 5Backward pawn: 4Active pieces: 4Avoided exchanges: 4Sacrificed material: 3Missed tactics: 1
Openings
Click "+" to add that group to the games list below. Multiple groups can be added at once.
As White 9 games 1W 2D 6L
Nimzo-Indian Defense 2 games 0W 1D 1L
Normal Variation 1 game 0W 1D 0L
(unspecified)
1 game
0W
1D
0L
St. Petersburg Variation 1 game 0W 0D 1L
(unspecified)
1 game
0W
0D
1L
Queen's Gambit Declined 2 games 1W 1D 0L
Orthodox Defense 1 game 1W 0D 0L
Main Line
1 game
1W
0D
0L
Exchange Variation 1 game 0W 1D 0L
Reshevsky Variation
1 game
0W
1D
0L
Neo-Grünfeld Defense 1 game 0W 0D 1L
Delayed Exchange Variation 1 game 0W 0D 1L
(unspecified)
1 game
0W
0D
1L
East Indian Defense 1 game 0W 0D 1L
(unspecified) 1 game 0W 0D 1L
(unspecified)
1 game
0W
0D
1L
French Defense 1 game 0W 0D 1L
Advance Variation 1 game 0W 0D 1L
Main Line
1 game
0W
0D
1L
English Opening 1 game 0W 0D 1L
Symmetrical Variation 1 game 0W 0D 1L
Ultra-Symmetrical Variation
1 game
0W
0D
1L
Grünfeld Defense 1 game 0W 0D 1L
Exchange Variation 1 game 0W 0D 1L
Modern Exchange Variation, Kramnik's Line
1 game
0W
0D
1L
As Black 5 games 2W 3D 0L
Sicilian Defense 4 games 1W 3D 0L
Accelerated Dragon 1 game 0W 1D 0L
Modern Bc4 Variation
1 game
0W
1D
0L
Hyperaccelerated Dragon 1 game 1W 0D 0L
(unspecified)
1 game
1W
0D
0L
Smith-Morra Gambit 1 game 0W 1D 0L
(unspecified)
1 game
0W
1D
0L
O'Kelly Variation 1 game 0W 1D 0L
Venice System
1 game
0W
1D
0L
Queen's Gambit Declined 1 game 1W 0D 0L
Three Knights Variation 1 game 1W 0D 0L
(unspecified)
1 game
1W
0D
0L
Blunders Top 4 of 105
This player's costliest moves in analyzed games. Can you find the winning move?
Games Showing all 22 games
| Date | Event | Round | Color | Opponent | Result | Accuracy % | First moves |
|---|---|---|---|---|---|---|---|
| 2026.10.26 | Round 4: Jezek, Jiri - Lutskiy, Mikhail | 4.7 | 2026.10.26 Lutskiy, Mikhail (23744308) (1968) | 0 | - | 1. d4 Nf6 2. c4 g6 3. Nf3 Bg7 | |
| 2026.10.25 | Round 2: Jezek, Jiri - Kroulik, Vaclav | 2.16 | 2026.10.25 Kroulik, Vaclav (23725478) (2154) | ½ | - | 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 | |
| 2026.10.24 | Round 1: Vognic, David - Jezek, Jiri | 1.13 | 2026.10.24 Vognic, David (23780673) (1944) | ½ | - | 1. e4 c5 2. Nf3 g6 3. d4 cxd4 | |
| 2026.06.28 | Round 2: Jezek, Jiri - Poznicek, Antonin | 2.6 | 2026.06.28 Poznicek, Antonin (23764112) (1833) | 0 | 85.50% | 1. d4 Nf6 2. Nf3 g6 3. Nbd2 d5 | |
| 2026.06.24 | Round 9: Jezek, Jiri - Medek, Simon | 9.7 | 2026.06.24 Medek, Simon (23760214) (1772) | 1 | 97.00% | 1. d4 d5 2. c4 c6 3. Nc3 Nf6 | |
| 2026.06.23 | Round 2: Jezek, Jiri - Mikulec, Eduard | 2.3 | 2026.06.23 Mikulec, Eduard (23743832) (1782) | 0 | - | 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 | |
| 2025.11.01 | MČech HD14 2025 | 9.11 | 2025.11.01 Mrazik, Marek (23754737) (1952) | 0 | 72.90% | 1. e4 e6 2. d4 d5 3. e5 c5 | |
| 2025.10.31 | MČech HD14 2025 | 8.17 | 2025.10.31 Tykalova, Barbora (23750898) (1692) | 1 | - | 1. e4 c5 2. Nf3 g6 3. d4 cxd4 | |
| 2025.10.30 | MČech HD14 2025 | 7.16 | 2025.10.30 Sara, David (23746599) (1769) | ½ | 92.20% | 1. d4 d5 2. c4 e6 3. Nc3 Nf6 | |
| 2025.10.29 | MČech HD14 2025 | 6.17 | 2025.10.29 Vorlik, Jachym (23750901) (1814) | ½ | 86.00% | 1. e4 c5 2. d4 cxd4 3. Qxd4 Nc6 | |
| 2025.10.27 | MČech HD14 2025 | 3.11 | 2025.10.27 Koupil, Stepan (23742119) (1860) | ½ | 89.00% | 1. e4 c5 2. Nf3 a6 3. c3 d5 | |
| 2025.10.26 | MČech HD14 2025 | 2.11 | 2025.10.26 Lickova, Anna (23744359) (1798) | 0 | 76.70% | 1. c4 c5 2. g3 g6 3. Bg2 Bg7 | |
| 2025.06.24 | Round 4: Jezek, Jiri - Koncicky, Vojtech | 4.4 | 2025.06.24 Koncicky, Vojtech (23779403) (1604) | 0 | 80.00% | 1. d4 Nf6 2. c4 g6 3. Nc3 d5 | |
| 2025.06.24 | Round 3: Slamecka, David - Jezek, Jiri | 3.4 | 2025.06.24 Slamecka, David (23761849) (1592) | 1 | 80.80% | 1. Nf3 d5 2. c4 e6 3. d4 Nf6 | |
| 2023.10.27 | Round 8: Jiří Ježek - Xuan Nguyen Ta | 2023.10.27 Jiří Ježek (1392) | 1 | 95.90% | 1. d4 d5 2. c4 c6 3. Nc3 Nf6 | ||
| 2023.10.26 | Round 7: Vít Sehnoutka - Jiří Ježek | 2023.10.26 Vít Sehnoutka (1041) | 1 | 85.50% | 1. d4 Nf6 2. Bf4 d5 3. e3 c5 | ||
| 2023.10.25 | Round 6: Jiří Ježek - Natanael Školoud | 2023.10.25 Jiří Ježek (1392) | 1 | 90.30% | 1. d4 Nf6 2. c4 e6 3. Nf3 d5 | ||
| 2023.10.24 | Round 5: Tomáš Zelenka - Jiří Ježek | 2023.10.24 Tomáš Zelenka (1281) | ½ | 76.90% | 1. e4 c5 2. g3 g6 3. d3 Nc6 | ||
| 2023.10.23 | Round 4: Jiří Ježek - Jáchym Vorlík | 2023.10.23 Jiří Ježek (1392) | ½ | 79.80% | 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 | ||
| 2023.10.23 | Round 3: Artem Remizov - Jiří Ježek | 2023.10.23 Artem Remizov (1259) | 0 | 86.00% | 1. e4 c5 2. Nf3 g6 3. Nc3 Bg7 | ||
| 2023.10.22 | Round 1: Natálie Kammová - Jiří Ježek | 2023.10.22 Natálie Kammová (1045) | 1 | 91.80% | 1. Nf3 d5 2. d4 Nf6 3. Bf4 e6 | ||
| 2023.10.22 | Round 2: Jiří Ježek - Anna Jenčová | 2023.10.22 Jiří Ježek (1392) | 0 | 84.00% | 1. d4 d5 2. Nf3 Nf6 3. c4 e6 |