Player profile
Irber, Jonas
Dossier
24 of 37 games analyzed.
Accuracy: 84.9%
Opened e4: 6/11Opened d4: 5/11
Castled kingside: 21Same-side castling: 18Opposite-side castling: 3Did not castle: 1Castled queenside: 1
Played in the center: 9Played on the kingside: 8Fianchettoed kingside: 6Played on the queenside: 5Fianchettoed queenside: 1
Space advantage: 14Sacrificed material: 14Backward pawn: 12Active pieces: 12Kept the bishop pair: 11Missed tactics: 11Initiated exchanges: 10Avoided exchanges: 9Isolated pawn: 6Accepted short draws: 2
Openings
Click "+" to add that group to the games list below. Multiple groups can be added at once.
As White 18 games 2W 5D 11L
Sicilian Defense 4 games 0W 1D 3L
Four Knights Variation 2 games 0W 1D 1L
(unspecified)
2 games
0W
1D
1L
Pin Variation 1 game 0W 0D 1L
(unspecified)
1 game
0W
0D
1L
Classical Variation 1 game 0W 0D 1L
(unspecified)
1 game
0W
0D
1L
Queen's Gambit Declined 3 games 0W 1D 2L
Neo-Orthodox Variation 1 game 0W 0D 1L
Main Line
1 game
0W
0D
1L
Queen's Knight Variation 1 game 0W 1D 0L
(unspecified)
1 game
0W
1D
0L
Modern Variation 1 game 0W 0D 1L
(unspecified)
1 game
0W
0D
1L
King's Indian Defense 2 games 1W 1D 0L
Smyslov Variation 1 game 0W 1D 0L
(unspecified)
1 game
0W
1D
0L
Normal Variation 1 game 1W 0D 0L
King's Knight Variation
1 game
1W
0D
0L
Benko Gambit Accepted 1 game 0W 1D 0L
Pawn Return Variation 1 game 0W 1D 0L
(unspecified)
1 game
0W
1D
0L
Semi-Slav Defense 1 game 1W 0D 0L
Accelerated Move Order 1 game 1W 0D 0L
(unspecified)
1 game
1W
0D
0L
Grünfeld Defense 1 game 0W 1D 0L
Exchange Variation 1 game 0W 1D 0L
Modern Exchange Variation
1 game
0W
1D
0L
Slav Defense 1 game 0W 0D 1L
(unspecified) 1 game 0W 0D 1L
(unspecified)
1 game
0W
0D
1L
Scotch Game 1 game 0W 0D 1L
Classical Variation 1 game 0W 0D 1L
(unspecified)
1 game
0W
0D
1L
Alekhine Defense 1 game 0W 0D 1L
Four Pawns Attack 1 game 0W 0D 1L
(unspecified)
1 game
0W
0D
1L
Nimzo-Indian Defense 1 game 0W 0D 1L
(unspecified) 1 game 0W 0D 1L
(unspecified)
1 game
0W
0D
1L
Caro-Kann Defense 1 game 0W 0D 1L
Exchange Variation 1 game 0W 0D 1L
(unspecified)
1 game
0W
0D
1L
French Defense 1 game 0W 0D 1L
Exchange Variation 1 game 0W 0D 1L
(unspecified)
1 game
0W
0D
1L
As Black 18 games 3W 2D 13L
Sicilian Defense 10 games 1W 1D 8L
Najdorf Variation 2 games 0W 0D 2L
Opocensky Variation
1 game
0W
0D
1L
(unspecified)
1 game
0W
0D
1L
Closed 1 game 0W 1D 0L
(unspecified)
1 game
0W
1D
0L
Alapin Variation 1 game 0W 0D 1L
Barmen Defense
1 game
0W
0D
1L
Modern Variations 1 game 1W 0D 0L
(unspecified)
1 game
1W
0D
0L
Taimanov Variation 1 game 0W 0D 1L
(unspecified)
1 game
0W
0D
1L
(unspecified) 1 game 0W 0D 1L
(unspecified)
1 game
0W
0D
1L
Dragon Variation 1 game 0W 0D 1L
Yugoslav Attack, Main Line
1 game
0W
0D
1L
Accelerated Dragon 1 game 0W 0D 1L
Maróczy Bind
1 game
0W
0D
1L
Old Sicilian 1 game 0W 0D 1L
(unspecified)
1 game
0W
0D
1L
Queen's Pawn Game 3 games 0W 1D 2L
(unspecified) 1 game 0W 0D 1L
(unspecified)
1 game
0W
0D
1L
Stonewall Attack 1 game 0W 0D 1L
(unspecified)
1 game
0W
0D
1L
London System 1 game 0W 1D 0L
(unspecified)
1 game
0W
1D
0L
King's Indian Attack 1 game 1W 0D 0L
(unspecified) 1 game 1W 0D 0L
(unspecified)
1 game
1W
0D
0L
King's Indian Attack, with e6 1 game 1W 0D 0L
(unspecified) 1 game 1W 0D 0L
(unspecified)
1 game
1W
0D
0L
French Defense 1 game 0W 0D 1L
Winawer Variation 1 game 0W 0D 1L
Delayed Exchange Variation
1 game
0W
0D
1L
Réti Opening 1 game 0W 0D 1L
Anglo-Slav Variation 1 game 0W 0D 1L
Gurevich System
1 game
0W
0D
1L
English Opening 1 game 0W 0D 1L
Agincourt Defense 1 game 0W 0D 1L
(unspecified)
1 game
0W
0D
1L
Blunders Top 4 of 131
This player's costliest moves in analyzed games. Can you find the winning move?
Games Showing all 37 games
| Date | Event | Round | Color | Opponent | Result | Accuracy % | First moves |
|---|---|---|---|---|---|---|---|
| 2026.10.30 | Round 8: Pekar, Petr - Irber, Jonas | 8.17 | 2026.10.30 Pekar, Petr (23791039) (1717) | 0 | 87.70% | 1. e4 c5 2. Nf3 d6 3. d4 cxd4 | |
| 2026.10.28 | Round 6: Hronik, Filip - Irber, Jonas | 6.14 | 2026.10.28 Hronik, Filip (23799501) (1778) | 0 | 71.00% | 1. e4 c5 2. Nf3 d6 3. d4 cxd4 | |
| 2026.10.27 | Round 5: Irber, Jonas - Koukola, Stepan | 5.17 | 2026.10.27 Koukola, Stepan (23764066) (1737) | ½ | 88.20% | 1. d4 Nf6 2. c4 c5 3. d5 b5 | |
| 2026.10.26 | Round 4: Litos, Ondrej - Irber, Jonas | 4.15 | 2026.10.26 Litos, Ondrej (23767553) (1757) | ½ | - | 1. e4 c5 2. Nc3 d6 3. g3 Nf6 | |
| 2026.10.25 | Round 3: Irber, Jonas - Tykalova, Barbora | 3.17 | 2026.10.25 Tykalova, Barbora (23750898) (1720) | ½ | - | 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 | |
| 2026.10.25 | Round 2: Cerny, Ren - Irber, Jonas | 2.15 | 2026.10.25 Cerny, Ren (23754559) (1740) | 0 | - | 1. e4 c5 2. c3 d5 3. exd5 Qxd5 | |
| 2026.10.24 | Round 1: Irber, Jonas - Trejbal, Jindrich | 1.2 | 2026.10.24 Trejbal, Jindrich (23743948) (1898) | 1 | - | 1. d4 d5 2. c4 c6 3. Nc3 e6 | |
| 2026.06.28 | Round 2: Irber, Jonas - Rezac, Jindrich | 2.7 | 2026.06.28 Rezac, Jindrich (330329) (1830) | ½ | 92.40% | 1. d4 Nf6 2. c4 g6 3. Nc3 d5 | |
| 2025.11.01 | MČech HD12 2025 | 9.7 | 2025.11.01 Dlouhy, Martin (23773200) (1716) | 0 | - | 1. d4 d5 2. c4 e6 3. Nc3 Nf6 | |
| 2025.10.31 | MČech HD12 2025 | 8.8 | 2025.10.31 Cejchan, Teodor (23776331) (1652) | 1 | 94.80% | 1. Nf3 d5 2. g3 c6 3. d4 Nf6 | |
| 2025.10.30 | MČech HD12 2025 | 7.6 | 2025.10.30 Menkov, Ivan (23763400) (1664) | 0 | 75.80% | 1. d4 d5 2. c4 c6 3. Nc3 Nf6 | |
| 2025.10.29 | MČech HD12 2025 | 6.8 | 2025.10.29 Vratny, Vojtech (23753692) (1602) | 1 | 86.00% | 1. g3 d5 2. Nf3 e6 3. Bg2 Nf6 | |
| 2025.10.28 | MČech HD12 2025 | 5.5 | 2025.10.28 Bukovsky, Dmitri (23749660) (1715) | ½ | - | 1. d4 d5 2. c4 e6 3. Nc3 h6 | |
| 2025.10.27 | MČech HD12 2025 | 4.17 | 2025.10.27 Gajdac, Sandra (23773529) | 1 | 96.70% | 1. e4 c5 2. Nf3 d6 3. Nc3 Nf6 | |
| 2025.10.27 | MČech HD12 2025 | 3.17 | 2025.10.27 Drahosova, Anna (23780460) (1419) | 1 | 81.50% | 1. d4 Nf6 2. c4 g6 3. Nf3 Bg7 | |
| 2025.10.26 | MČech HD12 2025 | 2.3 | 2025.10.26 Trejbal, Jindrich (23743948) (1778) | 0 | 89.90% | 1. d4 c6 2. f4 d5 3. Nf3 Nf6 | |
| 2025.01.30 | Round 13: Irber, Jonas - Brezikova, Beata | 13.23 | 2025.01.30 Brezikova, Beata (23727250) (1792) | 0 | 80.60% | 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 | |
| 2025.01.30 | Round 12: Kroulik, Stepan - Irber, Jonas | 12.7 | 2025.01.30 Kroulik, Stepan (23725460) (1736) | 0 | - | 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 | |
| 2025.01.30 | Round 11: Irber, Jonas - Vo, Daniel | 11.27 | 2025.01.30 Vo, Daniel (23761229) (1743) | 0 | 79.70% | 1. e4 c5 2. Nf3 e6 3. d4 cxd4 | |
| 2025.01.30 | Round 10: Zeman, Jonas - Irber, Jonas | 10.3 | 2025.01.30 Zeman, Jonas (23755733) (1630) | 0 | 79.40% | 1. e4 e6 2. d4 d5 3. Nc3 Bb4 | |
| 2025.01.30 | Round 9: Dlouhy, Martin - Irber, Jonas | 9.27 | 2025.01.30 Dlouhy, Martin (23773200) | 0 | 83.50% | 1. d4 d5 2. e3 Nf6 3. Bd3 Nc6 | |
| 2025.01.30 | Round 8: Irber, Jonas - Horkovyi, Mykyta | 8.7 | 2025.01.30 Horkovyi, Mykyta (23766328) (1734) | 0 | 88.10% | 1. e4 c5 2. Nf3 d6 3. d4 cxd4 | |
| 2025.01.30 | Round 7: Kala, Jakub - Irber, Jonas | 7.23 | 2025.01.30 Kala, Jakub (23753897) (1918) | 0 | - | 1. Nf3 d5 2. c4 c6 3. e3 Bg4 | |
| 2025.01.30 | Round 6: Irber, Jonas - Policar, Martin | 6.11 | 2025.01.30 Policar, Martin (23734868) (1858) | 0 | 78.60% | 1. e4 Nf6 2. e5 Nd5 3. c4 Nb6 | |
| 2025.01.30 | Round 5: Kammova, Katerina - Irber, Jonas | 5.19 | 2025.01.30 Kammova, Katerina (23737336) (1754) | 0 | 82.40% | 1. e4 c5 2. Be2 Nc6 3. f4 e6 | |
| 2025.01.30 | Round 4: Irber, Jonas - Buchtova, Viktorie | 4.15 | 2025.01.30 Buchtova, Viktorie (23714786) (1653) | 0 | 86.00% | 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 | |
| 2025.01.30 | Round 3: Bara, Jan - Irber, Jonas | 3.15 | 2025.01.30 Bara, Jan (23716150) (1905) | 0 | 79.60% | 1. c4 e6 2. g3 d5 3. Bg2 dxc4 | |
| 2025.01.30 | Round 2: Irber, Jonas - Slivova, Linda | 2.19 | 2025.01.30 Slivova, Linda (23709294) | 0 | - | 1. e4 c6 2. Nf3 d5 3. exd5 cxd5 | |
| 2025.01.30 | Round 1: Strazhnyk, Viktoriia - Irber, Jonas | 1.11 | 2025.01.30 Strazhnyk, Viktoriia (23760699) (1773) | 0 | 87.20% | 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 | |
| 2025.01.30 | Round 7: Irber, Jonas - Zeman, Jonas | 7.21 | 2025.01.30 Zeman, Jonas (23755733) (1666) | ½ | 96.00% | 1. e4 c5 2. Nf3 e6 3. d4 cxd4 | |
| 2025.01.29 | Round 6: Irber, Jonas - Dlouhy, Martin | 6.21 | 2025.01.29 Dlouhy, Martin (23773200) (1675) | 0 | 79.00% | 1. e4 c5 2. Nf3 e6 3. d4 cxd4 | |
| 2025.01.29 | Round 5: Stepnicka, Filip - Irber, Jonas | 5.21 | 2025.01.29 Stepnicka, Filip (23771542) (1433) | 0 | 88.30% | 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 | |
| 2025.01.28 | Round 4: Irber, Jonas - Prokopchuk, Oleksandr | 4.21 | 2025.01.28 Prokopchuk, Oleksandr (23778016) | 0 | - | 1. e4 e6 2. d4 d5 3. exd5 exd5 | |
| 2025.01.28 | Round 3: Litos, Ondrej - Irber, Jonas | 3.21 | 2025.01.28 Litos, Ondrej (23767553) (1558) | ½ | - | 1. Nf3 d5 2. d4 Nf6 3. Bf4 Bf5 | |
| 2025.01.27 | Round 2: Irber, Jonas - Berdnikov, Tsyren | 2.20 | 2025.01.27 Berdnikov, Tsyren (23771372) (1547) | 0 | - | 1. d4 d5 2. c4 e6 3. Nc3 Nf6 | |
| 2025.01.27 | Round 1: Vo, Daniel - Irber, Jonas | 1.20 | 2025.01.27 Vo, Daniel (23761229) (1678) | 0 | - | 1. e4 c5 2. Nf3 Nc6 3. c3 Nf6 | |
| 2023.06.25 | Round 1: Oleksandra Korniichuk - Jonas Irber | 2023.06.25 Oleksandra Korniichuk | 0 | 81.90% | 1. e4 e6 2. d4 d5 3. exd5 exd5 |