Player profile
Den Hartog, Marijn
Dossier
24 of 26 games analyzed.
Accuracy: 90.5%
Opened e4: 4/12Opened Nf3: 4/12Opened d4: 2/12Opened d3: 1/12Opened Nc3: 1/12
Same-side castling: 21Castled kingside: 20Did not castle: 2Castled queenside: 2
Fianchettoed kingside: 13Fianchettoed queenside: 8Played in the center: 8Played on the kingside: 7Played on the queenside: 5
Active pieces: 19Backward pawn: 18Kept the bishop pair: 16Sacrificed material: 14Isolated pawn: 10Avoided exchanges: 9Space advantage: 9Initiated exchanges: 9Missed tactics: 6Played gambits: 4
Openings
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As White 13 games 6W 0D 7L
Ruy Lopez 1 game 0W 0D 1L
Morphy Defense 1 game 0W 0D 1L
Anderssen Variation
1 game
0W
0D
1L
King's Indian Attack 1 game 0W 0D 1L
Symmetrical Defense 1 game 0W 0D 1L
(unspecified)
1 game
0W
0D
1L
Catalan Opening 1 game 1W 0D 0L
Open Defense 1 game 1W 0D 0L
Classical Line
1 game
1W
0D
0L
Indian Defense 1 game 1W 0D 0L
Knights Variation 1 game 1W 0D 0L
(unspecified)
1 game
1W
0D
0L
Queen's Pawn Game 1 game 1W 0D 0L
Modern Defense 1 game 1W 0D 0L
(unspecified)
1 game
1W
0D
0L
English Opening 1 game 1W 0D 0L
Neo-Catalan 1 game 1W 0D 0L
(unspecified)
1 game
1W
0D
0L
Vienna Game 1 game 0W 0D 1L
Mieses Variation 1 game 0W 0D 1L
(unspecified)
1 game
0W
0D
1L
Mieses Opening 1 game 0W 0D 1L
(unspecified) 1 game 0W 0D 1L
(unspecified)
1 game
0W
0D
1L
Pirc Defense 1 game 0W 0D 1L
(unspecified) 1 game 0W 0D 1L
(unspecified)
1 game
0W
0D
1L
Caro-Kann Defense 1 game 1W 0D 0L
Endgame Variation 1 game 1W 0D 0L
(unspecified)
1 game
1W
0D
0L
Van Geet Opening 1 game 0W 0D 1L
(unspecified) 1 game 0W 0D 1L
(unspecified)
1 game
0W
0D
1L
Zukertort Opening 1 game 1W 0D 0L
Kingside Fianchetto 1 game 1W 0D 0L
(unspecified)
1 game
1W
0D
0L
Sicilian Defense 1 game 0W 0D 1L
Keres Variation 1 game 0W 0D 1L
(unspecified)
1 game
0W
0D
1L
As Black 13 games 5W 4D 4L
English Opening 4 games 1W 3D 0L
King's English Variation 1 game 1W 0D 0L
Kramnik-Shirov Counterattack
1 game
1W
0D
0L
Symmetrical Variation 1 game 0W 1D 0L
Three Knights, Fianchetto Variation
1 game
0W
1D
0L
(unspecified) 1 game 0W 1D 0L
(unspecified)
1 game
0W
1D
0L
Agincourt Defense 1 game 0W 1D 0L
Bogoljubow Defense
1 game
0W
1D
0L
Queen's Gambit Declined 2 games 1W 0D 1L
Janowski Variation 2 games 1W 0D 1L
(unspecified)
2 games
1W
0D
1L
French Defense 2 games 2W 0D 0L
Rubinstein Variation 1 game 1W 0D 0L
Kasparov Attack
1 game
1W
0D
0L
Advance Variation 1 game 1W 0D 0L
Euwe Variation
1 game
1W
0D
0L
Sicilian Defense 1 game 1W 0D 0L
Nyezhmetdinov-Rossolimo Attack 1 game 1W 0D 0L
Fianchetto Variation
1 game
1W
0D
0L
Italian Game 1 game 0W 0D 1L
Classical Variation 1 game 0W 0D 1L
Giuoco Pianissimo
1 game
0W
0D
1L
Polish Opening 1 game 0W 0D 1L
(unspecified) 1 game 0W 0D 1L
(unspecified)
1 game
0W
0D
1L
Caro-Kann Defense 1 game 0W 1D 0L
(unspecified) 1 game 0W 1D 0L
(unspecified)
1 game
0W
1D
0L
Bogo-Indian Defense 1 game 0W 0D 1L
Retreat Variation 1 game 0W 0D 1L
(unspecified)
1 game
0W
0D
1L
Blunders Top 4 of 136
This player's costliest moves in analyzed games. Can you find the winning move?
Games Showing all 26 games
| Date | Event | Round | Color | Opponent | Result | Accuracy % | First moves |
|---|---|---|---|---|---|---|---|
| 2026.07.24 | Round 4: Habig, Bryan - Den Hartog, Marijn | 4.23 | 2026.07.24 Habig, Bryan (1049240) (2077) | 1 | 86.50% | 1. c4 e5 2. Nc3 Bb4 3. Nd5 a5 | |
| 2026.07.23 | Round 3: Den Hartog, Marijn - Harshavardhan G B | 3.13 | 2026.07.23 Harshavardhan G B (25059009) (2508) | 0 | 83.50% | 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 | |
| 2026.07.22 | Round 2: Lu, Yunong Elias - Den Hartog, Marijn | 2.27 | 2026.07.22 Lu, Yunong Elias (16276426) (2112) | 1 | 96.10% | 1. e4 c5 2. Nf3 Nc6 3. Bb5 g6 | |
| 2026.07.21 | Round 1: Den Hartog, Marijn - Peyrer, Konstantin | 1.4 | 2026.07.21 Peyrer, Konstantin (1640879) (2496) | 0 | 84.40% | 1. Nf3 Nf6 2. g3 g6 3. Bg2 Bg7 | |
| 2026.07.19 | Amsterdam Chess Festival 2026 - Groep A | 9.2 | 2026.07.19 Schoorl, Rob (1009508) (2284) | ½ | 98.20% | 1. Nf3 c5 2. c4 Nc6 3. g3 g6 | |
| 2026.07.18 | Amsterdam Chess Festival 2026 - Groep A | 8.4 | 2026.07.18 Dovgaliuk, Oleksandr (14167247) (2305) | 1 | 95.90% | 1. Nf3 d5 2. g3 Nf6 3. Bg2 e6 | |
| 2026.07.17 | Amsterdam Chess Festival 2026 - Groep A | 7.8 | 2026.07.17 Brienen, Jacob (1094548) (2090) | 1 | 98.60% | 1. d4 Nf6 2. Nf3 e6 3. g3 d5 | |
| 2026.07.15 | Amsterdam Chess Festival 2026 - Groep A | 5.2 | 2026.07.15 De Boer, Eelke (1048120) (2406) | 0 | 82.60% | 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 | |
| 2026.07.14 | Amsterdam Chess Festival 2026 - Groep A | 4.4 | 2026.07.14 Bosboom, Manuel (1000080) (2328) | 1 | 96.30% | 1. d4 g6 2. c4 Bg7 3. Nc3 c6 | |
| 2026.07.12 | Amsterdam Chess Festival 2026 - Groep A | 2.10 | 2026.07.12 Andringa, Arjo (1055240) (1965) | 1 | 91.00% | 1. Nf3 Nf6 2. c4 e6 3. g3 d5 | |
| 2026.07.10 | Amsterdam Chess Festival 2026 - Groep A | 3.1 | 2026.07.10 Albers, Sasa (1068253) (2365) | ½ | 96.00% | 1. c4 d6 2. Nc3 e5 3. g3 g6 | |
| 2026.05.24 | Round 13: Simenon, Jozef - Den Hartog, Marijn | 13.5 | 2026.05.24 Simenon, Jozef (1012916) (2288) | 0 | 91.70% | 1. b4 e6 2. Bb2 Nf6 3. a3 d5 | |
| 2026.05.24 | Round 12: Den Hartog, Marijn - Kamphuis, Jasper | 12.4 | 2026.05.24 Kamphuis, Jasper (1059025) (2134) | 0 | 88.80% | 1. e4 e5 2. Nc3 Nf6 3. g3 Bc5 | |
| 2026.05.24 | Round 11: Terlouw, Wouter - Den Hartog, Marijn | 11.4 | 2026.05.24 Terlouw, Wouter (1087401) (2259) | 0 | 88.10% | 1. d4 d5 2. c4 e6 3. Nc3 a6 | |
| 2026.05.24 | Round 10: Den Hartog, Marijn - Van der Werf, Mark | 10.5 | 2026.05.24 Van der Werf, Mark (1000470) (2384) | 0 | 84.70% | 1. d3 d5 2. g3 Nf6 3. Bg2 c5 | |
| 2026.05.24 | Round 9: Slagboom, Leandro - Den Hartog, Marijn | 9.3 | 2026.05.24 Slagboom, Leandro (1065882) (2334) | 1 | 88.90% | 1. e4 e6 2. d4 d5 3. Nc3 dxe4 | |
| 2026.05.24 | Round 8: Den Hartog, Marijn - Ootes, Lars | 8.6 | 2026.05.24 Ootes, Lars (1019708) (2363) | 0 | - | 1. e4 d6 2. d4 g6 3. Nc3 a6 | |
| 2026.05.23 | Round 7: De Boer, Eelke - Den Hartog, Marijn | 7.2 | 2026.05.23 De Boer, Eelke (1048120) (2406) | 1 | 96.50% | 1. e4 e6 2. d4 d5 3. e5 c5 | |
| 2026.05.23 | Round 6: Den Hartog, Marijn - Jellema, Pieter | 6.7 | 2026.05.23 Jellema, Pieter (1094165) (2193) | 1 | 94.90% | 1. e4 c6 2. d3 d5 3. Nf3 dxe4 | |
| 2026.05.23 | Round 5: Grooten, Tommy - Den Hartog, Marijn | 5.1 | 2026.05.23 Grooten, Tommy (1068806) (2356) | 1 | - | 1. d4 d5 2. c4 e6 3. Nc3 a6 | |
| 2026.05.23 | Round 4: Aravindhan, Achyuth - Den Hartog, Marijn | 4.7 | 2026.05.23 Aravindhan, Achyuth (1084216) (2213) | ½ | 91.30% | 1. e4 c6 2. d4 g6 3. Nc3 Bg7 | |
| 2026.05.23 | Round 3: Den Hartog, Marijn - Grochal, Joey | 3.2 | 2026.05.23 Grochal, Joey (1019945) (2253) | 0 | 79.20% | 1. Nc3 c5 2. g3 d5 3. Bg2 d4 | |
| 2026.05.23 | Round 2: Bekker, Stefan - Den Hartog, Marijn | 2.6 | 2026.05.23 Bekker, Stefan (1022229) (2367) | ½ | 89.70% | 1. Nf3 Nf6 2. c4 e6 3. g3 d5 | |
| 2026.05.23 | Round 1: Den Hartog, Marijn - Pel, Bonno | 1.3 | 2026.05.23 Pel, Bonno (1004760) (2286) | 1 | 86.30% | 1. Nf3 g6 2. e4 d6 3. d4 Nf6 | |
| 2025.06.06 | Round 1: Den Hartog, Marijn - Dann, Matthias | 1.6 | 2025.06.06 Dann, Matthias (24638056) (2446) | 0 | 93.40% | 1. e4 c5 2. Ne2 Nf6 3. e5 Nd5 | |
| 2025.04.18 | Round 2: Roshka, Yevgeniy - Den Hartog, Marijn | 2.22 | 2025.04.18 Roshka, Yevgeniy (14129558) (2488) | 0 | 90.00% | 1. d4 Nf6 2. c4 e6 3. Nf3 d5 |