Player profile
Van Osch, Mees
Dossier
64 of 65 games analyzed.
Accuracy: 90.7%
Opened e4: 28/28
Castled kingside: 29Same-side castling: 25Castled queenside: 12Did not castle: 9Opposite-side castling: 6
Played in the center: 20Played on the kingside: 14Played on the queenside: 8Fianchettoed queenside: 6Fianchettoed kingside: 5
Active pieces: 41Sacrificed material: 30Space advantage: 28Initiated exchanges: 27Isolated pawn: 24Backward pawn: 24Kept the bishop pair: 23Missed tactics: 12Avoided exchanges: 11Played gambits: 9
Openings
Click "+" to add that group to the games list below. Multiple groups can be added at once.
As White 29 games 14W 10D 5L
Sicilian Defense 13 games 4W 5D 4L
Richter-Rauzer Variation 4 games 2W 1D 1L
(unspecified)
4 games
2W
1D
1L
Closed 2 games 1W 0D 1L
(unspecified)
2 games
1W
0D
1L
Kan Variation 1 game 0W 1D 0L
Wing Attack
1 game
0W
1D
0L
Dragon Variation 1 game 1W 0D 0L
(unspecified)
1 game
1W
0D
0L
Hyperaccelerated Dragon 1 game 0W 1D 0L
(unspecified)
1 game
0W
1D
0L
Classical Variation 1 game 0W 1D 0L
Sozin Attack
1 game
0W
1D
0L
Alapin Variation 1 game 0W 1D 0L
Barmen Defense
1 game
0W
1D
0L
Najdorf Variation 1 game 0W 0D 1L
English Attack
1 game
0W
0D
1L
Löwenthal Variation 1 game 0W 0D 1L
(unspecified)
1 game
0W
0D
1L
Caro-Kann Defense 7 games 4W 2D 1L
Advance Variation 4 games 2W 1D 1L
Tal Variation
3 games
1W
1D
1L
(unspecified)
1 game
1W
0D
0L
Two Knights Attack 2 games 1W 1D 0L
(unspecified)
2 games
1W
1D
0L
Exchange Variation 1 game 1W 0D 0L
(unspecified)
1 game
1W
0D
0L
Pirc Defense 2 games 2W 0D 0L
(unspecified) 1 game 1W 0D 0L
(unspecified)
1 game
1W
0D
0L
150 Attack 1 game 1W 0D 0L
Sveshnikov-Jansa Attack
1 game
1W
0D
0L
French Defense 2 games 2W 0D 0L
Paulsen Variation 1 game 1W 0D 0L
(unspecified)
1 game
1W
0D
0L
Steinitz Variation 1 game 1W 0D 0L
Boleslavsky Variation
1 game
1W
0D
0L
Four Knights Game 2 games 1W 1D 0L
Spanish Variation 2 games 1W 1D 0L
Nimzowitsch Variation
1 game
0W
1D
0L
(unspecified)
1 game
1W
0D
0L
Petrov's Defense 1 game 0W 1D 0L
Modern Attack 1 game 0W 1D 0L
Center Variation
1 game
0W
1D
0L
Alekhine Defense 1 game 1W 0D 0L
Exchange Variation 1 game 1W 0D 0L
(unspecified)
1 game
1W
0D
0L
Philidor Defense 1 game 0W 1D 0L
Lion Variation 1 game 0W 1D 0L
(unspecified)
1 game
0W
1D
0L
As Black 22 games 9W 3D 10L
Sicilian Defense 11 games 6W 0D 5L
Richter-Rauzer Variation 4 games 4W 0D 0L
Neo-Modern Variation
3 games
3W
0D
0L
Classical Variation
1 game
1W
0D
0L
Four Knights Variation 3 games 0W 0D 3L
(unspecified)
2 games
0W
0D
2L
Exchange Variation
1 game
0W
0D
1L
Moscow Variation 2 games 2W 0D 0L
Main Line
1 game
1W
0D
0L
(unspecified)
1 game
1W
0D
0L
Classical Variation 1 game 0W 0D 1L
(unspecified)
1 game
0W
0D
1L
Sozin Attack 1 game 0W 0D 1L
Leonhardt Variation
1 game
0W
0D
1L
Bogo-Indian Defense 2 games 1W 1D 0L
Retreat Variation 2 games 1W 1D 0L
(unspecified)
2 games
1W
1D
0L
King's Indian Attack 2 games 0W 0D 2L
(unspecified) 1 game 0W 0D 1L
(unspecified)
1 game
0W
0D
1L
Sicilian Variation 1 game 0W 0D 1L
(unspecified)
1 game
0W
0D
1L
Rapport-Jobava System 2 games 0W 1D 1L
(unspecified) 2 games 0W 1D 1L
(unspecified)
2 games
0W
1D
1L
Catalan Opening 1 game 0W 0D 1L
Open Defense 1 game 0W 0D 1L
(unspecified)
1 game
0W
0D
1L
French Defense 1 game 1W 0D 0L
Rubinstein Variation 1 game 1W 0D 0L
Blackburne Defense
1 game
1W
0D
0L
Horwitz Defense 1 game 1W 0D 0L
(unspecified) 1 game 1W 0D 0L
(unspecified)
1 game
1W
0D
0L
Nimzo-Indian Defense 1 game 0W 0D 1L
Classical Variation 1 game 0W 0D 1L
Romanishin Gambit
1 game
0W
0D
1L
Queen's Indian Defense 1 game 0W 1D 0L
Kasparov-Petrosian Variation 1 game 0W 1D 0L
Petrosian Attack
1 game
0W
1D
0L
Blunders Top 4 of 218
This player's costliest moves in analyzed games. Can you find the winning move?
Games Showing all 65 games
| Date | Event | Round | Color | Opponent | Result | Accuracy % | First moves |
|---|---|---|---|---|---|---|---|
| 2026.08.14 | Split Chess Open 2026 | 10.6 | 2026.08.14 Akshat, Khamparia (5016541) (2290) | 1 | 92.80% | 1. e4 c5 2. Nf3 d6 3. d4 cxd4 | |
| 2026.08.13 | Split Chess Open 2026 | 9.8 | 2026.08.13 Vashchenko, Illia (34141405) (1928) | 1 | 86.60% | 1. d4 Nf6 2. c4 e6 3. g3 d5 | |
| 2026.08.12 | Split Chess Open 2026 | 8.11 | 2026.08.12 Cuzovic, Ognjen (984450) (2108) | 1 | 97.30% | 1. e4 c6 2. d4 d5 3. exd5 cxd5 | |
| 2026.08.11 | Split Chess Open 2026 | 7.8 | 2026.08.11 Sale, Srdjan (14500760) (2245) | 0 | 89.90% | 1. Nf3 d5 2. g3 Nf6 3. Bg2 c5 | |
| 2026.08.09 | Split Chess Open 2026 | 6.5 | 2026.08.09 Gal, Andrej (14567563) (2332) | ½ | 83.10% | 1. e4 c5 2. Nc3 e6 3. Nf3 a6 | |
| 2026.08.09 | Split Chess Open 2026 | 5.6 | 2026.08.09 Ivanov, Igor (34137430) (2233) | ½ | 95.00% | 1. d4 Nf6 2. Nc3 d5 3. Bf4 e6 | |
| 2026.08.08 | Split Chess Open 2026 | 4.8 | 2026.08.08 Leskovac, Nikola (997285) (2132) | 1 | 88.40% | 1. e4 c5 2. Nc3 a6 3. g3 Nc6 | |
| 2026.08.07 | Split Chess Open 2026 | 3.8 | 2026.08.07 Jakhria, Kushal (497444) (2142) | ½ | 94.40% | 1. d4 Nf6 2. c4 e6 3. Nf3 d5 | |
| 2026.08.07 | Split Chess Open 2026 | 2.9 | 2026.08.07 Rosenboom, Niko (34601880) (2058) | 1 | 96.30% | 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 | |
| 2026.08.06 | Split Chess Open 2026 | 1.9 | 2026.08.06 Capin, Josip (14585731) (1879) | 1 | 96.90% | 1. e4 c5 2. Nf3 d6 3. Bb5+ Bd7 | |
| 2026.07.24 | Round 4: Van Osch, Mees - Warmerdam, Max | 4.7 | 2026.07.24 Warmerdam, Max (1048104) (2533) | 0 | 90.90% | 1. e4 c5 2. Nc3 a6 3. g3 Nc6 | |
| 2026.07.23 | Round 3: Schneider, Heiko - Van Osch, Mees | 3.16 | 2026.07.23 Schneider, Heiko (4627423) (2152) | 1 | 96.40% | 1. e4 c5 2. Nf3 d6 3. d4 cxd4 | |
| 2026.07.22 | Round 2: Van Osch, Mees - Drugmand, Benoit | 2.21 | 2026.07.22 Drugmand, Benoit (271543) (2143) | 1 | 90.40% | 1. e4 d6 2. d4 Nf6 3. Nc3 g6 | |
| 2026.07.21 | Round 1: De Jong, Lode - Van Osch, Mees | 1.18 | 2026.07.21 De Jong, Lode (40101860) (2102) | 0 | 85.10% | 1. d4 Nf6 2. c4 e6 3. g3 d5 | |
| 2026.05.17 | Round 7: Timmer, Michel - Van Osch, Mees | 7.4 | 2026.05.17 Timmer, Michel (40104524) (1888) | 1 | 93.70% | 1. e4 e6 2. d4 d5 3. Nd2 dxe4 | |
| 2026.05.17 | Round 6: Van Osch, Mees - Aden, Meino | 6.9 | 2026.05.17 Aden, Meino (12965669) (1924) | 1 | 93.80% | 1. e4 e6 2. d4 d5 3. Nc3 h6 | |
| 2026.05.16 | Round 5: Van Osch, Mees - Aden, Keno | 5.6 | 2026.05.16 Aden, Keno (12909653) (1963) | ½ | 92.80% | 1. e4 c6 2. Nc3 d5 3. Nf3 dxe4 | |
| 2026.05.15 | Round 3: Keuning, Selwin - Van Osch, Mees | 3.2 | 2026.05.15 Keuning, Selwin (1034219) (2200) | 0 | 91.80% | 1. e4 c5 2. Nf3 d6 3. d4 cxd4 | |
| 2026.05.14 | Round 2: Van Osch, Mees - Knol, Geon | 2.2 | 2026.05.14 Knol, Geon (1012142) (2007) | 1 | 95.40% | 1. e4 c6 2. d4 d5 3. e5 e6 | |
| 2026.05.14 | Round 1: Bonnema, Roy - Van Osch, Mees | 1.2 | 2026.05.14 Bonnema, Roy (40130908) | 1 | 95.90% | 1. d4 e6 2. Bf4 c5 3. Nf3 cxd4 | |
| 2025.12.29 | Round 5: Van Osch, Mees - Muller, Kenneth | 5.2 | 2025.12.29 Muller, Kenneth (1052977) (1991) | 1 | 90.30% | 1. e4 c5 2. Nf3 d6 3. d4 cxd4 | |
| 2025.12.28 | Round 4: Sosef, Noah - Van Osch, Mees | 4.3 | 2025.12.28 Sosef, Noah (40107060) (1820) | 1 | 91.90% | 1. e4 c5 2. Nf3 d6 3. d4 cxd4 | |
| 2025.12.13 | Round 5: Van Osch, Mees - Zouaghi, Amir | 5.5 | 2025.12.13 Zouaghi, Amir (249262) (2313) | ½ | 86.60% | 1. e4 c5 2. Nf3 g6 3. c3 d5 | |
| 2025.12.03 | Round 1: Van Osch, Mees - Botter, Simon | 1.1 | 2025.12.03 Botter, Simon (40107698) (1935) | ½ | 93.60% | 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 | |
| 2025.07.19 | Round 2: Fernandez, Daniel Howard - Van Osch, Mees | 2.3 | 2025.07.19 Fernandez, Daniel Howard (5801605) (2481) | 0 | 91.80% | 1. Nf3 d5 2. g3 c5 3. Bg2 Nf6 | |
| 2025.07.19 | Round 1: Van Osch, Mees - Ruzhansky, Elias | 1.4 | 2025.07.19 Ruzhansky, Elias (472824) (2320) | ½ | - | 1. e4 c5 2. Nf3 d6 3. d4 cxd4 | |
| 2025.07.18 | Round 9: Van Volsem, Merlijn - Van Osch, Mees | 9.2 | 2025.07.18 Van Volsem, Merlijn (258806) (2278) | 0 | 90.70% | 1. d4 e6 2. c4 Nf6 3. Nc3 Bb4 | |
| 2025.07.18 | Round 8: Van Osch, Mees - Gormally, Daniel W | 8.5 | 2025.07.18 Gormally, Daniel W (406465) (2435) | ½ | 97.80% | 1. e4 c5 2. Nf3 d6 3. d4 cxd4 | |
| 2025.07.18 | Round 6: Dauw, Sterre - Van Osch, Mees | 6.5 | 2025.07.18 Dauw, Sterre (248886) (2354) | 0 | 82.50% | 1. e4 c5 2. Nf3 e6 3. d4 cxd4 | |
| 2025.07.18 | Round 5: Van Osch, Mees - Grutter, Tim | 5.2 | 2025.07.18 Grutter, Tim (1057472) (2405) | 1 | 92.30% | 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 | |
| 2025.07.18 | Round 4: Dgebuadze, Alexandre - Van Osch, Mees | 4.4 | 2025.07.18 Dgebuadze, Alexandre (203882) (2396) | 0 | 81.50% | 1. e4 c5 2. Nf3 e6 3. d4 cxd4 | |
| 2025.07.18 | Round 3: Van Osch, Mees - Victor, Julian | 3.3 | 2025.07.18 Victor, Julian (257257) (2316) | 1 | 95.30% | 1. e4 c6 2. d4 d5 3. e5 Bf5 | |
| 2025.07.07 | Round 7: Van Osch, Mees - Pijpers, Arthur | 7.1 | 2025.07.07 Pijpers, Arthur (1019554) (2500) | ½ | 97.40% | 1. e4 c5 2. c3 d5 3. exd5 Qxd5 | |
| 2025.03.22 | schachbundesliga20242025 | 11.8 | 2025.03.22 Wagner, Dinara (24157570) (2440) | 0 | 83.70% | 1. e4 c5 2. Nf3 d6 3. d4 cxd4 | |
| 2024.11.03 | Round 7: Van Osch, Mees - Kopylov, Daniel | 7.1 | 2024.11.03 Kopylov, Daniel (12921971) (2369) | ½ | 97.10% | 1. e4 e5 2. Nf3 Nf6 3. d4 Nxe4 | |
| 2024.11.02 | Round 6: Schulze, Lara - Van Osch, Mees | 6.3 | 2024.11.02 Schulze, Lara (12956830) (2275) | 1 | 94.90% | 1. e4 c5 2. Nf3 d6 3. Bb5+ Nd7 | |
| 2024.11.02 | Round 5: Van Osch, Mees - Boehme, Arne | 5.4 | 2024.11.02 Boehme, Arne (4689941) (2137) | 1 | 96.00% | 1. e4 d6 2. d4 Nf6 3. Nc3 g6 | |
| 2024.11.01 | Round 4: Hoeffer, David - Van Osch, Mees | 4.2 | 2024.11.01 Hoeffer, David (24606766) (2305) | 0 | 85.90% | 1. d4 Nf6 2. Nc3 d5 3. Bf4 a6 | |
| 2024.11.01 | Round 3: Van Osch, Mees - Ritscher, Jan-Paul, Dr. | 3.3 | 2024.11.01 Ritscher, Jan-Paul, Dr. (4627695) (2208) | 1 | 98.50% | 1. e4 Nf6 2. e5 Nd5 3. d4 d6 | |
| 2024.10.31 | Round 2: Skembris, Simon Max - Van Osch, Mees | 2.3 | 2024.10.31 Skembris, Simon Max (16281381) (2119) | 1 | 93.10% | 1. e4 c5 2. Nf3 d6 3. d4 cxd4 | |
| 2024.10.31 | Round 1: Van Osch, Mees - Jonnek, Thomas | 1.3 | 2024.10.31 Jonnek, Thomas (1271599) (2012) | 1 | 97.30% | 1. e4 c6 2. Nc3 d5 3. Nf3 dxe4 | |
| 2024.10.25 | 39th European Chess Club Cup | 6 | 2024.10.25 Saraci, Nderim (6351921) (2440) | 0 | 78.50% | 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 | |
| 2024.10.24 | 39th European Chess Club Cup | 5 | 2024.10.24 Jepson, Christian (1701185) (2400) | ½ | 94.00% | 1. e4 d6 2. d4 Nf6 3. Nc3 e5 | |
| 2024.10.23 | 39th European Chess Club Cup | 4 | 2024.10.23 Kanyamarala, Tarun (45004714) (2369) | ½ | 90.40% | 1. d4 Nf6 2. c4 e6 3. Nf3 b6 | |
| 2024.10.22 | 39th European Chess Club Cup | 3 | 2024.10.22 Ten Hertog, Hugo (1026356) (2516) | 0 | 82.90% | 1. e4 c6 2. d4 d5 3. e5 Bf5 | |
| 2024.10.21 | 39th European Chess Club Cup | 2 | 2024.10.21 Stevcic, Slobodan (943533) (2103) | 1 | 88.50% | 1. e4 e6 2. d4 d5 3. Nc3 Nf6 | |
| 2024.10.20 | 39th European Chess Club Cup | 1 | 2024.10.20 Kadric, Denis (14403803) (2558) | 0 | 90.60% | 1. e4 c5 2. Nf3 d6 3. d4 cxd4 | |
| 2024.06.21 | Round 2: Van Osch, Mees - Van Rootselaar, Rik | 2024.06.21 Van Rootselaar, Rik (1088572) (2111) | 0 | 84.30% | 1. e4 c5 2. Nf3 Nc6 3. Nc3 d6 | ||
| 2024.06.21 | Round 1: Dengiz, Furkan - Van Osch, Mees | 2024.06.21 Dengiz, Furkan (1041460) (1992) | 1 | 98.10% | 1. e4 c5 2. Nf3 d6 3. d4 cxd4 | ||
| 2024.04.28 | SchachBuli Runde 15 | 1.7 | 2024.04.28 Lai, Hing Ting (1038257) (2478) | ½ | 53.30% | 1. e4 c6 2. d4 d5 3. e5 Bf5 | |
| 2024.04.27 | SchachBuli Runde 14 | 1.7 | 2024.04.27 Movsesian, Sergei (310204) (2616) | 0 | 87.80% | 1. e4 c5 2. Nf3 e6 3. d4 cxd4 | |
| 2023.07.19 | Round 9: Andrew Stone - Mees van Osch | 2023.07.19 Andrew Stone | ½ | 94.80% | 1. Nf3 Nf6 2. c4 g6 3. g3 Bg7 | ||
| 2023.07.18 | Round 8: Mees van Osch - Stefan Bekker | 2023.07.18 Stefan Bekker | ½ | 96.70% | 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 | ||
| 2023.07.18 | Round 7: Adriaan Dreelinck - Mees van Osch | 2023.07.18 Adriaan Dreelinck | ½ | 90.00% | 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 | ||
| 2023.07.17 | Round 6: Mees van Osch - Matthias Godde | 2023.07.17 Matthias Godde | 1 | 93.60% | 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 | ||
| 2023.07.17 | Round 5: Jacob Dreelinck - Mees van Osch | 2023.07.17 Jacob Dreelinck | ½ | 98.10% | 1. e4 e6 2. d4 d5 3. Nd2 Be7 | ||
| 2023.07.16 | Round 4: Mees van Osch - Vadim van Kuijk | 2023.07.16 Vadim van Kuijk | 1 | 95.30% | 1. e4 c6 2. Nc3 d5 3. Nf3 dxe4 | ||
| 2023.07.16 | Round 5: Arjan Van Der Leij - Mees van Osch | 2023.07.16 Arjan Van Der Leij | 1 | 97.40% | 1. e4 c5 2. c3 Nf6 3. e5 Nd5 | ||
| 2023.07.15 | Round 2: Mees van Osch - Kobe Vandenhole | 2023.07.15 Kobe Vandenhole | 1 | 92.10% | 1. e4 e6 2. d4 d5 3. Nc3 a6 | ||
| 2023.07.15 | Round 1: Maxim Vanlommel - Mees van Osch | 2023.07.15 Maxim Vanlommel | 1 | 88.30% | 1. e4 c5 2. Nf3 d6 3. d4 cxd4 | ||
| 2023.06.25 | HSG Open 2023 A | 6 | 2023.06.25 Jan Boekelman | 1 | 91.70% | 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 | |
| 2023.06.25 | Round 5: Laurens Schilstra - Mees Van Osch | 2023.06.25 Laurens Schilstra | ½ | 97.10% | 1. e4 e6 2. d4 d5 3. Nd2 Nf6 | ||
| 2023.06.24 | Round 3: Mees Van Osch - Max Warmerdam | 2023.06.24 Max Warmerdam | 0 | 90.40% | 1. e4 c6 2. d4 d5 3. e5 Bf5 | ||
| 2023.06.23 | Round 2: Mees Van Osch - Gauti Pall Jonsson | 2023.06.23 Gauti Pall Jonsson | 1 | 96.20% | 1. e4 c5 2. Nf3 Nc6 3. Nc3 g6 | ||
| 2023.06.23 | Round 1: Frans Arp - Mees van Osch | 2023.06.23 Frans Arp | 1 | 98.10% | 1. e4 e6 2. d4 d5 3. Nc3 Nf6 |