Player profile
Mark Van Der Werf
Dossier
15 of 16 games analyzed.
Accuracy: 85.7%
Opened Nf3: 7/7
Castled kingside: 13Same-side castling: 11Did not castle: 1Castled queenside: 1
Fianchettoed queenside: 7Played in the center: 5Played on the queenside: 5Fianchettoed kingside: 4Played on the kingside: 2
Active pieces: 12Backward pawn: 11Sacrificed material: 11Kept the bishop pair: 10Initiated exchanges: 8Isolated pawn: 7Space advantage: 7Missed tactics: 4Avoided exchanges: 3Played gambits: 2
Openings
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As White 7 games 4W 1D 2L
English Opening 2 games 2W 0D 0L
Agincourt Defense 2 games 2W 0D 0L
Neo-Catalan Declined
2 games
2W
0D
0L
Réti Opening 1 game 0W 1D 0L
Advance Variation 1 game 0W 1D 0L
(unspecified)
1 game
0W
1D
0L
Slav Defense 1 game 0W 0D 1L
Quiet Variation 1 game 0W 0D 1L
Schallopp Defense
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
Queen's Indian Defense, with e3 1 game 1W 0D 0L
(unspecified) 1 game 1W 0D 0L
(unspecified)
1 game
1W
0D
0L
King's Indian Defense 1 game 0W 0D 1L
Orthodox Variation 1 game 0W 0D 1L
Gligoric-Taimanov System
1 game
0W
0D
1L
As Black 9 games 2W 4D 3L
Scandinavian Defense 3 games 1W 2D 0L
(unspecified) 1 game 0W 1D 0L
(unspecified)
1 game
0W
1D
0L
Mieses-Kotroc Variation 1 game 1W 0D 0L
(unspecified)
1 game
1W
0D
0L
Main Line 1 game 0W 1D 0L
Mieses Variation
1 game
0W
1D
0L
Bogo-Indian Defense 2 games 1W 1D 0L
Grünfeld Variation 1 game 0W 1D 0L
(unspecified)
1 game
0W
1D
0L
Exchange Variation 1 game 1W 0D 0L
(unspecified)
1 game
1W
0D
0L
Queen's Pawn Game 1 game 0W 0D 1L
Torre Attack 1 game 0W 0D 1L
(unspecified)
1 game
0W
0D
1L
Four Knights Game 1 game 0W 0D 1L
Scotch Variation Accepted 1 game 0W 0D 1L
Main Line
1 game
0W
0D
1L
Queen's Gambit Declined 1 game 0W 0D 1L
Exchange Variation 1 game 0W 0D 1L
Reshevsky Variation
1 game
0W
0D
1L
Zukertort Opening 1 game 0W 1D 0L
Nimzo-Larsen Variation 1 game 0W 1D 0L
(unspecified)
1 game
0W
1D
0L
Blunders Top 4 of 63
This player's costliest moves in analyzed games. Can you find the winning move?
Games Showing all 16 games
| Date | Event | Round | Color | Opponent | Result | Accuracy % | First moves |
|---|---|---|---|---|---|---|---|
| 2025.09.13 | 2.5: Vrolijk, Liam - Mark Van Der Werf | 10.4 | 2025.09.13 Vrolijk, Liam (1048333) (2509) | 0 | 78.60% | 1. d4 Nf6 2. Bg5 d5 3. e3 e6 | |
| 2025.09.13 | 2.4: Mark Van Der Werf - Grochal, Joey | 9.4 | 2025.09.13 Grochal, Joey (1019945) (2259) | ½ | 95.00% | 1. Nf3 d5 2. c4 d4 3. g3 c5 | |
| 2025.09.13 | 2.3: Rogier Van Arkel - Mark Van Der Werf | 8.4 | 2025.09.13 Rogier Van Arkel | ½ | 88.90% | 1. e4 d5 2. Nc3 d4 3. Nce2 c5 | |
| 2025.09.13 | 2.2: Mark Van Der Werf - Lee, Jungbin | 7.4 | 2025.09.13 Lee, Jungbin (1078356) (1922) | 1 | 95.50% | 1. Nf3 d5 2. c4 e6 3. g3 Nf6 | |
| 2025.09.13 | 2.1: Kazarjan, Gachatur - Mark Van Der Werf | 6.4 | 2025.09.13 Kazarjan, Gachatur (1068750) (2222) | 0 | 75.60% | 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 | |
| 2025.09.12 | Round 11: Meulmeester, Luuk - Mark Van Der Werf | 11.1 | 2025.09.12 Meulmeester, Luuk (40111776) (1918) | ½ | 90.30% | 1. d4 Nf6 2. Nf3 e6 3. c4 Bb4+ | |
| 2025.09.12 | Round 10: Mark Van Der Werf - Smeets, Kobe | 10.1 | 2025.09.12 Smeets, Kobe (1063910) (2336) | 0 | 83.90% | 1. Nf3 d5 2. c4 c6 3. e3 Nf6 | |
| 2025.09.12 | Round 9: Ritzerveld, Noah - Mark Van Der Werf | 9.1 | 2025.09.12 Ritzerveld, Noah (1085760) (2150) | 1 | 93.80% | 1. e4 d5 2. exd5 Qxd5 3. Nf3 Bg4 | |
| 2025.09.12 | Round 8: Mark Van Der Werf - Michiel Van Wissen | 8.1 | 2025.09.12 Michiel Van Wissen | 1 | 89.00% | 1. Nf3 g6 2. e4 Bg7 3. d4 d6 | |
| 2025.09.12 | Round 7: Bram Van Der Velden - Mark Van Der Werf | 7.1 | 2025.09.12 Bram Van Der Velden | 0 | 69.90% | 1. d4 d5 2. c4 e6 3. Nc3 Nf6 | |
| 2025.09.12 | Round 6: Mark Van Der Werf - Gijsen, William | 6.1 | 2025.09.12 Gijsen, William (1053361) (2112) | 1 | 97.90% | 1. Nf3 Nf6 2. c4 b6 3. Nc3 Bb7 | |
| 2025.09.12 | Round 5: Joel Van Der Werf - Mark Van Der Werf | 5.1 | 2025.09.12 Joel Van Der Werf | 1 | 91.70% | 1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ | |
| 2025.09.12 | Round 4: Mark Van Der Werf - Kurt, Sascha | 4.1 | 2025.09.12 Kurt, Sascha (1082647) (2070) | 0 | 60.80% | 1. Nf3 Nf6 2. c4 g6 3. Nc3 Bg7 | |
| 2025.09.12 | Round 3: Arnold, Rhys - Mark Van Der Werf | 3.1 | 2025.09.12 Arnold, Rhys (1068849) (2133) | ½ | - | 1. e4 d5 2. exd5 Qxd5 3. Nc3 Qa5 | |
| 2025.09.12 | Round 2: Mark Van Der Werf - Dinanath, Hrdya | 2.1 | 2025.09.12 Dinanath, Hrdya (1087991) (2052) | 1 | 95.60% | 1. Nf3 d5 2. c4 e6 3. g3 Nf6 | |
| 2025.09.08 | Round 1: IJzermans, Cees - Mark Van Der Werf | 1.1 | 2025.09.08 IJzermans, Cees (1027425) (2050) | ½ | 79.40% | 1. Nf3 Nf6 2. b3 d5 3. Bb2 e6 |