Player profile
Koval, Jakub
Dossier
52 of 59 games analyzed.
Accuracy: 87%
Opened e4: 13/21Opened c4: 5/21Opened f4: 2/21Opened b3: 1/21
Castled kingside: 30Same-side castling: 22Castled queenside: 9Opposite-side castling: 7Did not castle: 5
Played in the center: 17Played on the kingside: 10Fianchettoed kingside: 10Played on the queenside: 9Fianchettoed queenside: 8
Active pieces: 35Initiated exchanges: 29Kept the bishop pair: 25Backward pawn: 20Sacrificed material: 20Space advantage: 19Missed tactics: 16Isolated pawn: 13Avoided exchanges: 6Played gambits: 3
Openings
Click "+" to add that group to the games list below. Multiple groups can be added at once.
As White 26 games 16W 4D 6L
Sicilian Defense 7 games 4W 1D 2L
Closed 7 games 4W 1D 2L
Traditional
6 games
3W
1D
2L
(unspecified)
1 game
1W
0D
0L
English Opening 5 games 2W 1D 2L
Anglo-Indian Defense 2 games 1W 0D 1L
Queen's Knight Variation
2 games
1W
0D
1L
King's English Variation 2 games 1W 0D 1L
Three Knights System
1 game
0W
0D
1L
Four Knights Variation, Fianchetto Line
1 game
1W
0D
0L
Agincourt Defense 1 game 0W 1D 0L
(unspecified)
1 game
0W
1D
0L
Italian Game 4 games 4W 0D 0L
Classical Variation 2 games 2W 0D 0L
Giuoco Pianissimo
2 games
2W
0D
0L
Two Knights Defense 1 game 1W 0D 0L
Modern Bishop's Opening
1 game
1W
0D
0L
Giuoco Piano 1 game 1W 0D 0L
(unspecified)
1 game
1W
0D
0L
French Defense 4 games 4W 0D 0L
Rubinstein Variation 3 games 3W 0D 0L
Fort Knox Variation
2 games
2W
0D
0L
Blackburne Defense
1 game
1W
0D
0L
Classical Variation 1 game 1W 0D 0L
Burn Variation, Morozevich Line
1 game
1W
0D
0L
? 3 games 0W 1D 2L
(unspecified) 3 games 0W 1D 2L
(unspecified)
3 games
0W
1D
2L
Caro-Kann Defense 1 game 1W 0D 0L
Classical Variation 1 game 1W 0D 0L
Main Line
1 game
1W
0D
0L
Petrov's Defense 1 game 0W 1D 0L
Nimzowitsch Attack 1 game 0W 1D 0L
(unspecified)
1 game
0W
1D
0L
Nimzo-Larsen Attack 1 game 1W 0D 0L
Modern Variation 1 game 1W 0D 0L
(unspecified)
1 game
1W
0D
0L
As Black 25 games 7W 6D 12L
? 4 games 2W 1D 1L
(unspecified) 4 games 2W 1D 1L
(unspecified)
4 games
2W
1D
1L
Sicilian Defense 3 games 2W 0D 1L
Kan Variation 2 games 2W 0D 0L
Knight Variation
1 game
1W
0D
0L
Modern Variation
1 game
1W
0D
0L
Delayed Alapin Variation 1 game 0W 0D 1L
with e6
1 game
0W
0D
1L
Zukertort Opening 2 games 1W 0D 1L
Pirc Invitation 1 game 1W 0D 0L
(unspecified)
1 game
1W
0D
0L
(unspecified) 1 game 0W 0D 1L
(unspecified)
1 game
0W
0D
1L
Indian Defense 2 games 0W 0D 2L
Knights Variation 2 games 0W 0D 2L
(unspecified)
2 games
0W
0D
2L
Ruy Lopez 2 games 0W 0D 2L
Morphy Defense 1 game 0W 0D 1L
Anderssen Variation
1 game
0W
0D
1L
Fianchetto Defense 1 game 0W 0D 1L
(unspecified)
1 game
0W
0D
1L
Italian Game 2 games 0W 1D 1L
Evans Gambit 1 game 0W 1D 0L
Tartakower Attack
1 game
0W
1D
0L
Classical Variation 1 game 0W 0D 1L
Greco Gambit, Dubov Italian
1 game
0W
0D
1L
Caro-Kann Defense 1 game 0W 0D 1L
Dinic Gambit 1 game 0W 0D 1L
(unspecified)
1 game
0W
0D
1L
Marienbad System 1 game 0W 1D 0L
(unspecified) 1 game 0W 1D 0L
(unspecified)
1 game
0W
1D
0L
Modern Defense 1 game 0W 0D 1L
(unspecified) 1 game 0W 0D 1L
(unspecified)
1 game
0W
0D
1L
Nimzo-Indian Defense 1 game 1W 0D 0L
Classical Variation 1 game 1W 0D 0L
Berlin Variation
1 game
1W
0D
0L
French Defense 1 game 0W 0D 1L
Franco-Sicilian Defense 1 game 0W 0D 1L
(unspecified)
1 game
0W
0D
1L
Petrov's Defense 1 game 0W 1D 0L
(unspecified) 1 game 0W 1D 0L
(unspecified)
1 game
0W
1D
0L
Yusupov-Rubinstein System 1 game 1W 0D 0L
(unspecified) 1 game 1W 0D 0L
(unspecified)
1 game
1W
0D
0L
Benoni Defense 1 game 0W 1D 0L
(unspecified) 1 game 0W 1D 0L
(unspecified)
1 game
0W
1D
0L
Mieses Opening 1 game 0W 0D 1L
Reversed Rat 1 game 0W 0D 1L
(unspecified)
1 game
0W
0D
1L
Hungarian Opening 1 game 0W 1D 0L
Dutch Defense 1 game 0W 1D 0L
(unspecified)
1 game
0W
1D
0L
Blunders Top 4 of 226
This player's costliest moves in analyzed games. Can you find the winning move?
Games Showing all 59 games
| Date | Event | Round | Color | Opponent | Result | Accuracy % | First moves |
|---|---|---|---|---|---|---|---|
| 2026.08.04 | Round 3: Jozsa, Lev - Koval, Jakub | 3.7 | 2026.08.04 Jozsa, Lev (34681434) (1736) | 0 | 79.60% | 1. e4 c6 2. Nf3 d5 3. d3 dxe4 | |
| 2026.08.03 | Round 2: Koval, Jakub - Schumacher, Ben | 2.8 | 2026.08.03 Schumacher, Ben (533023085) (1689) | 0 | 79.70% | 1. c4 Nf6 2. Nc3 g6 3. e4 e5 | |
| 2026.07.08 | FIDE OPEN QCC | 9.16 | 2026.07.08 Borecky, Andrej (23752670) (1895) | 1 | 98.20% | 1. e4 c5 2. Nc3 Nc6 3. Bb5 Nd4 | |
| 2026.07.07 | FIDE OPEN QCC | 8.19 | 2026.07.07 Szopa, Emilia (21858853) (1971) | 1 | 95.00% | 1. Nf3 d6 2. g3 e5 3. d4 e4 | |
| 2026.07.06 | FIDE OPEN QCC | 7.13 | 2026.07.06 Korsa, Jindrich (312568) (2061) | 0 | 83.70% | 1. c4 e5 2. Nc3 Nc6 3. Nf3 d6 | |
| 2026.07.05 | FIDE OPEN QCC | 6.15 | 2026.07.05 Naghiyev, Ali (13472682) (1951) | ½ | 87.30% | 1. d4 Nf6 2. Nf3 b6 3. g3 Bb7 | |
| 2026.07.04 | FIDE OPEN QCC | 5.13 | 2026.07.04 Svejda, Karel (23709472) (1988) | ½ | 89.40% | 1. e4 c5 2. Nc3 Nc6 3. Bb5 g6 | |
| 2026.07.03 | FIDE OPEN QCC | 4.13 | 2026.07.03 N. Tarun (25787780) (1880) | 0 | 82.80% | 1. d4 Nf6 2. Nf3 h6 3. h3 e6 | |
| 2026.07.02 | FIDE OPEN QCC | 3.14 | 2026.07.02 Radovic, Stefan (1706802) (1993) | 1 | 97.80% | 1. e4 c5 2. Nc3 g6 3. d4 cxd4 | |
| 2026.06.30 | FIDE OPEN QCC | 1.26 | 2026.06.30 Smola, David (23721367) (1922) | 1 | - | 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 | |
| 2026.06.29 | FIDE OPEN QCC | 2.1 | 2026.06.29 Vykouk, Jan (349658) (2504) | 0 | 89.90% | 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 | |
| 2026.06.21 | LJ 2026 | 8.14 | 2026.06.21 Zgoda, Damian (1196472) (1859) | 1 | 97.70% | 1. c4 e5 2. Nf3 Nc6 3. Nc3 Nf6 | |
| 2026.06.21 | LJ 2026 | 7.8 | 2026.06.21 Livnansky, Michal (73622885) (1926) | 0 | 87.50% | 1. e4 c5 2. Nf3 e6 3. c3 Nf6 | |
| 2026.06.20 | LJ 2026 | 6.14 | 2026.06.20 Miciak, Emanuel (14912783) (1788) | 1 | 94.70% | 1. e4 e6 2. d4 d5 3. Nc3 dxe4 | |
| 2026.06.20 | LJ 2026 | 5.5 | 2026.06.20 Bednar, Milos (23709812) (1960) | 0 | 82.30% | 1. e4 g6 2. d4 Bg7 3. Be3 Nf6 | |
| 2026.06.19 | LJ 2026 | 4.3 | 2026.06.19 Kudela, Oliver (14971755) (2009) | ½ | 91.70% | 1. c4 e6 2. Nf3 d5 3. g3 Nd7 | |
| 2026.06.19 | LJ 2026 | 3.2 | 2026.06.19 Nowak, Maciej (21028699) (1967) | ½ | 88.90% | 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 | |
| 2026.06.18 | LJ 2026 | 2.6 | 2026.06.18 Prochazka, Michal (14975777) (1873) | 1 | 97.00% | 1. e4 c5 2. Nc3 Nc6 3. Bb5 Nd4 | |
| 2026.06.18 | LJ 2026 | 1.6 | 2026.06.18 Kyrc, Filip (14981254) (1732) | 1 | 84.80% | 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 | |
| 2025.05.08 | Freestyle Senkvice 2025 | 9.5 | 2025.05.08 Oruzinsky, Juraj (14962195) (2244) | 0 | 77.00% | 1. f4 b6 2. Nf3 g6 3. Nc3 f5 | |
| 2025.05.08 | Freestyle Senkvice 2025 | 8.4 | 2025.05.08 Pechac, Jergus (14926970) (2600) | 0 | 83.60% | 1. c4 d6 2. Nc3 g6 3. d3 e5 | |
| 2025.05.08 | Freestyle Senkvice 2025 | 7.6 | 2025.05.08 Novomeska, Karin (14952300) (1956) | 1 | 89.80% | 1. c3 d5 2. Bc2 Nd6 3. Nb3 e5 | |
| 2025.05.08 | Freestyle Senkvice 2025 | 6.2 | 2025.05.08 Plat, Vojtech (325740) (2482) | 0 | - | 1. e4 b6 2. Nc3 e6 3. d4 Nf6 | |
| 2025.05.08 | Freestyle Senkvice 2025 | 5.4 | 2025.05.08 Brnusak, Tomas (14939878) (2234) | 1 | 90.50% | 1. Ng3 d6 2. d4 f5 3. c4 g6 | |
| 2025.05.08 | Freestyle Senkvice 2025 | 3.6 | 2025.05.08 Mojzis, Marcel (14902753) (2193) | ½ | 93.10% | 1. d4 d5 2. c3 Nf6 3. Bf4 e6 | |
| 2025.05.08 | Freestyle Senkvice 2025 | 2.4 | 2025.05.08 Krnan, Tomas (14905361) (2423) | ½ | 77.80% | 1. f4 d5 2. Nd3 Nb6 3. g4 f6 | |
| 2025.05.03 | MSR rapid | 7.11 | 2025.05.03 Oruzinsky, Juraj (14962195) (2028) | 0 | 16.40% | 1. e4 e6 2. d4 c5 3. c3 cxd4 | |
| 2025.05.03 | MSR rapid | 6.16 | 2025.05.03 Zahorsky, Robert (14910420) (1919) | 1 | 95.30% | 1. e4 c6 2. d4 d5 3. Nc3 dxe4 | |
| 2025.05.03 | MSR rapid | 5.16 | 2025.05.03 Sankova, Stella (14944200) (1984) | ½ | 89.70% | 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d5 | |
| 2025.05.03 | MSR rapid | 4.7 | 2025.05.03 Bochnicka, Vladimir (14943450) (2337) | 0 | 86.60% | 1. e4 c5 2. Nc3 Nc6 3. Bb5 g6 | |
| 2025.05.03 | MSR rapid | 3.15 | 2025.05.03 Hasala, Richard (14969157) (1959) | 1 | 87.20% | 1. d4 Nf6 2. Nf3 e6 3. e3 b6 | |
| 2025.05.03 | MSR rapid | 2.16 | 2025.05.03 Kneznik, Frantisek (14923866) (1956) | ½ | 87.10% | 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 | |
| 2025.05.02 | blesk2025 | 13.8 | 2025.05.02 Cisko, Matej (14930412) (2103) | 0 | 85.30% | 1. e4 e5 2. Nf3 Nc6 3. Bb5 g6 | |
| 2025.05.02 | blesk2025 | 12.9 | 2025.05.02 Zetocha, Adrian (14950430) (2105) | 1 | 86.70% | 1. e4 c5 2. Nc3 Nc6 3. Bb5 Nd4 | |
| 2025.05.02 | MSR blitz | 10.1 | 2025.05.02 Hitka, Dominik (14981106) (1755) | 1 | - | 1. e4 e6 2. d4 d5 3. Nc3 dxe4 | |
| 2025.05.02 | blesk2025 | 9.14 | 2025.05.02 Vastik, Lukas (73618721) (1822) | 0 | - | 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 | |
| 2025.05.02 | blesk2025 | 8.6 | 2025.05.02 Druska, Juraj (14915650) (2410) | 0 | 87.10% | 1. e4 c5 2. Nc3 Nc6 3. Bb5 g6 | |
| 2025.05.02 | blesk2025 | 7.13 | 2025.05.02 Pisarcik, Richard (14967499) (1835) | 1 | 94.20% | 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 | |
| 2025.05.02 | blesk2025 | 6.5 | 2025.05.02 Stevik, Patrik (2253) | 0 | 81.60% | 1. Nf3 Nf6 2. g3 b6 3. Bg2 Bb7 | |
| 2025.05.02 | blesk2025 | 5.7 | 2025.05.02 Solcan, Martin (14946718) (2110) | 1 | 85.10% | 1. e4 c5 2. Nf3 e6 3. d4 cxd4 | |
| 2025.05.02 | blesk2025 | 3.7 | 2025.05.02 Bango, Lukas (14933365) (2289) | 0 | - | 1. d4 Nf6 2. Nf3 e6 3. g3 c5 | |
| 2025.05.02 | MSR blitz | 4.3 | 2025.05.02 Rakoci, Jan (14994445) (1782) | 1 | - | 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 | |
| 2025.05.02 | MSR blitz | 2.5 | 2025.05.02 Szaszak, Robert (14962136) (1803) | 1 | - | 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 | |
| 2024.06.18 | MSR amaterov | 8.1 | 2024.06.18 Gorbenko, Rustem (14111438) (2163) | ½ | 94.40% | 1. d4 Nf6 2. c4 e6 3. Nf3 c5 | |
| 2024.06.18 | MSR amaterov | 7.7 | 2024.06.18 Babjak, Samuel (14957973) (1883) | 1 | 88.40% | 1. e4 e6 2. d4 d5 3. Nc3 Nf6 | |
| 2024.06.17 | MSR amaterov | 6.3 | 2024.06.17 Panko, Eduard (14940779) (2100) | 0 | 84.20% | 1. d3 e5 2. Nf3 Nc6 3. c3 Nf6 | |
| 2024.06.17 | MSR amaterov | 5.4 | 2024.06.17 Karas, Marek (14928558) (2187) | 1 | 96.30% | 1. c4 Nf6 2. Nc3 g6 3. g3 Bg7 | |
| 2024.06.16 | MSR amaterov | 4.1 | 2024.06.16 Solcan, Martin (14946718) (2238) | ½ | 90.20% | 1. g3 f5 2. Bg2 Nf6 3. Nf3 e6 | |
| 2024.06.16 | MSR amaterov | 3.9 | 2024.06.16 Janik, Marek Tobias (73612715) (1868) | 1 | 89.10% | 1. b3 e5 2. Bb2 Nc6 3. e3 Nf6 | |
| 2024.06.15 | MSR amaterov | 2.13 | 2024.06.15 Hitka, Dominik (14981106) (1912) | 1 | 88.30% | 1. e4 e6 2. d4 c5 3. Nf3 a6 | |
| 2024.06.15 | MSR amaterov | 1.13 | 2024.06.15 Ostruzlik, Kristian (14919290) (1762) | 1 | 94.40% | 1. e4 e6 2. d4 d5 3. Nc3 dxe4 | |
| 2023.06.18 | MSR amaterov | 8.9 | 2023.06.18 Verbovsky, Michal (14934213) (2088) | 1 | 94.00% | 1. e4 e5 2. Nc3 Nc6 3. Nf3 Bb4 | |
| 2023.06.18 | MSR amaterov | 7.12 | 2023.06.18 Chomo, Boris (14946548) (1876) | 1 | 90.00% | 1. g3 b6 2. Bg2 Nc6 3. Nf3 Bb7 | |
| 2023.06.17 | MSR amaterov | 6.18 | 2023.06.17 Petrigacova, Daniela (14909499) (1798) | 1 | 91.20% | 1. e4 e5 2. Nf3 Nc6 3. Bb5 g6 | |
| 2023.06.17 | MSR amaterov | 5.10 | 2023.06.17 Kolesar, Peter (14922266) (1930) | 0 | 84.10% | 1. c4 Nf6 2. Nc3 c5 3. g3 g6 | |
| 2023.06.16 | MSR amaterov | 4.1 | 2023.06.16 Sharan, Rao (5073464) (2248) | 0 | 88.20% | 1. d4 Nf6 2. Nf3 g6 3. b3 c5 | |
| 2023.06.16 | MSR amaterov | 3.8 | 2023.06.16 Marjanovic, Gyorgy (731994) (2017) | 1 | 90.10% | 1. Nf3 c5 2. g3 d5 3. Bg2 Nc6 | |
| 2023.06.15 | MSR amaterov | 2.11 | 2023.06.15 Hasala, Richard (14969157) (1832) | 1 | 96.00% | 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 | |
| 2023.06.15 | MSR amaterov | 1.11 | 2023.06.15 Lazniewska, Zofia (21847266) (1583) | 1 | 95.10% | 1. e4 c5 2. Nc3 Nc6 3. Bb5 Nd4 |