Player profile
Heij, Jacco
Dossier
17 of 17 games analyzed.
Accuracy: 89.8%
Opened d4: 6/6
Castled kingside: 13Same-side castling: 11
Played on the queenside: 7Fianchettoed queenside: 5Played in the center: 4Fianchettoed kingside: 3Played on the kingside: 3
Active pieces: 8Sacrificed material: 7Initiated exchanges: 7Backward pawn: 6Missed tactics: 6Isolated pawn: 6Kept the bishop pair: 6Space advantage: 5Avoided exchanges: 4Played gambits: 2
Openings
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As White 6 games 4W 1D 1L
Queen's Gambit Declined 2 games 0W 1D 1L
Three Knights Variation 2 games 0W 1D 1L
(unspecified)
2 games
0W
1D
1L
Queen's Indian Defense 1 game 1W 0D 0L
Spassky System 1 game 1W 0D 0L
(unspecified)
1 game
1W
0D
0L
Indian Defense 1 game 1W 0D 0L
Anti-Nimzo-Indian 1 game 1W 0D 0L
(unspecified)
1 game
1W
0D
0L
Bogo-Indian Defense 1 game 1W 0D 0L
Wade-Smyslov Variation 1 game 1W 0D 0L
(unspecified)
1 game
1W
0D
0L
Grünfeld Defense 1 game 1W 0D 0L
Exchange Variation 1 game 1W 0D 0L
Modern Exchange Variation
1 game
1W
0D
0L
As Black 7 games 3W 0D 4L
Grünfeld Defense 2 games 0W 0D 2L
Exchange Variation 1 game 0W 0D 1L
(unspecified)
1 game
0W
0D
1L
Stockholm Variation 1 game 0W 0D 1L
(unspecified)
1 game
0W
0D
1L
Italian Game 2 games 2W 0D 0L
Classical Variation 2 games 2W 0D 0L
Giuoco Pianissimo
2 games
2W
0D
0L
English Opening 2 games 0W 0D 2L
Agincourt Defense 1 game 0W 0D 1L
(unspecified)
1 game
0W
0D
1L
Anglo-Indian Defense 1 game 0W 0D 1L
Anglo-Grünfeld Variation
1 game
0W
0D
1L
Ruy Lopez 1 game 1W 0D 0L
Morphy Defense 1 game 1W 0D 0L
Anderssen Variation
1 game
1W
0D
0L
Blunders Top 4 of 85
This player's costliest moves in analyzed games. Can you find the winning move?
Games Showing all 17 games
| Date | Event | Round | Color | Opponent | Result | Accuracy % | First moves |
|---|---|---|---|---|---|---|---|
| 2024.11.03 | Amsterdam Chess Open 2024 | 5.14 | 2024.11.03 Beijen, Mark (1032771) (1947) | 0 | 89.40% | 1. d4 Nf6 2. c4 g6 3. Nc3 d5 | |
| 2024.11.02 | Amsterdam Chess Open 2024 | 4.11 | 2024.11.02 Mikko, Rondo (4509633) (1966) | 0 | 83.60% | 1. d4 d5 2. c4 e6 3. Nf3 Nf6 | |
| 2024.11.02 | Amsterdam Chess Open 2024 | 3.13 | 2024.11.02 Maes, Djad (1061364) (1916) | 1 | 87.70% | 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 | |
| 2024.11.01 | Amsterdam Chess Open 2024 | 2.13 | 2024.11.01 Kumar, Prayan Sai (1070231) (1865) | 1 | 95.90% | 1. d4 Nf6 2. c4 e6 3. Nf3 b6 | |
| 2024.11.01 | Amsterdam Chess Open 2024 | 1.17 | 2024.11.01 Migliorero, Lorenzo (40104346) (1851) | 1 | 88.30% | 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 | |
| 2024.07.10 | Round 9: Boswell, Jacob Connor - Heij, Jacco | 9.9 | 2024.07.10 Boswell, Jacob Connor (427110) (2241) | 0 | 91.00% | 1. Nf3 d5 2. c4 e6 3. d4 c6 | |
| 2024.07.09 | Round 8: Heij, Jacco - Tapp, James | 8.13 | 2024.07.09 Tapp, James (343407404) (1997) | 1 | 81.80% | 1. d4 Nf6 2. c4 e6 3. Nf3 c5 | |
| 2024.07.09 | Round 7: Stubbs, Oliver - Heij, Jacco | 7.14 | 2024.07.09 Stubbs, Oliver (441325) (2146) | 1 | 94.50% | 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 | |
| 2024.07.08 | Round 6: Heij, Jacco - McKenna, Joshua | 6.20 | 2024.07.08 McKenna, Joshua (1802500) (1706) | 1 | 96.80% | 1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ | |
| 2024.07.07 | Round 4: Heij, Jacco - Agarwal, Amaya | 4.21 | 2024.07.07 Agarwal, Amaya (48733580) (1700) | ½ | 89.50% | 1. d4 d5 2. c4 e6 3. Nf3 Nf6 | |
| 2024.07.06 | Round 3: Bullen, Alex - Heij, Jacco | 3.12 | 2024.07.06 Bullen, Alex (1801627) (2159) | 0 | 83.00% | 1. Nf3 Nf6 2. c4 g6 3. Nc3 d5 | |
| 2024.07.05 | Round 2: Heij, Jacco - Powell-Jones, Liam | 2.19 | 2024.07.05 Powell-Jones, Liam (1806807) (1789) | 1 | 93.90% | 1. d4 Nf6 2. c4 g6 3. Nf3 Bg7 | |
| 2024.07.05 | Round 1: Chatalbashev, Boris - Heij, Jacco | 1.1 | 2024.07.05 Chatalbashev, Boris (2900440) (2483) | 0 | 92.60% | 1. d4 Nf6 2. c4 g6 3. Nc3 d5 | |
| 2023.07.08 | Round 7: Peter Mijnheer - Jacco Heij | 2023.07.08 Peter Mijnheer | 1 | 95.40% | 1. d4 Nf6 2. c4 g6 3. Nc3 d5 | ||
| 2023.07.08 | Round 6: Jacco Heij - Loek Van der Hagen | 2023.07.08 Loek Van der Hagen | 0 | 85.20% | 1. d4 Nf6 2. c4 g6 3. Nf3 Bg7 | ||
| 2023.07.08 | Round 4: Jacco Heij - Henk Vedder | 2023.07.08 Henk Vedder | ½ | 87.10% | 1. d4 e6 2. c4 Bb4+ 3. Nc3 c5 | ||
| 2023.07.08 | Round 2: Jacco Heij - Piet Peelen | 2023.07.08 Piet Peelen | 0 | 86.80% | 1. d4 Nf6 2. c4 g6 3. Nf3 Bg7 |