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| Fecha | Torneo de ajedrez | Estado |
|---|---|---|
| 2025-08-02 to 2025-08-09 | HZ University of Applied Sciences Schaaktoernooi 2025 |
Finalizado |
| 2016-08-06 to 2016-08-13 | 20th Hogeschool Zeeland Tournament |
Finalizado |
| 2015-08-01 to 2015-08-08 | 19th Hogeschool Zeeland Tournament |
Finalizado |
| Fecha | Jugadores & Apertura | Resultado | ECO | Ver |
|---|---|---|---|---|
| 2016.08.06 | Timmermans, Mark (2387) vs (1864) Niewenhuis, Ruud 20th Hogeschool Zeeland Tournament Siciliana Nimzovich |
1-0 | B29 | |
| 2015.08.01 | Wunnink, Michael (2253) vs (1840) Niewenhuis, Ruud 19th Hogeschool Zeeland Tournament Gruenfeld Rusa |
1-0 | D96 |
| Fecha | Jugadores & Apertura | Resultado | ECO | Ver |
|---|---|---|---|---|
| 2023.08.05 | Niewenhuis,R (1813) vs (2447) Ikonnikov,Vy 25th HZ Open 2023 Siciliana O'Kelly - Maroczy |
0-1 | B28 | |
| 2022.08.06 | Niewenhuis,R (1841) vs (2375) Royal,Shreyas 24th HZ Open 2022 Caballo de Rey - Gambito Escocés (Haxo) |
0-1 | C44 | |
| 2016.08.06 | Timmermans, M. (2387) vs (1864) Niewenhuis, R. 20th HZ Open 2016 Siciliana Nimzovich |
1-0 | B29 | |
| 2017.08.05 | Maatman, Nick (2386) vs (1852) Niewenhuis, R. 21st HZ Open 2017 Gruenfeld del Cambio - Moderna |
1-0 | D85 | |
| 2014.08.02 | Niewenhuis, R. (1909) vs (2530) Hausrath, D. 18th HZ Open 2014 Robatsch - Lagarto |
0-1 | B06 | |
| 2013.08.08 | Goormachtigh, J. (2182) vs (1941) Niewenhuis, R. HZ Open 2013 Gruenfeld Tres Caballos (Húngara) |
1-0 | D92 | |
| 2013.08.06 | Van Gool, H. (2152) vs (1941) Niewenhuis, R. HZ Open 2013 India India Oriental |
1/2-1/2 | A48 | |
| 2013.08.05 | Brookes, C. (2112) vs (1941) Niewenhuis, R. HZ Open 2013 Inglesa Siciliana (Dos Caballos) - Carls (Smyslov) |
1-0 | A22 | |
| 2013.08.04 | Von Meijenfeldt, Bar (2202) vs (1941) Niewenhuis, R. HZ Open 2013 Siciliana Cerrada |
1-0 | B23 | |
| 2011.08.06 | Riemens, A. (2140) vs (1923) Niewenhuis, R. 15th HZ Open Siciliana Cerrada - Camaleón |
1/2-1/2 | B23 | |
| 2012.08.06 | Niewenhuis, R. (1962) vs (2132) Porte, H. 16th HZ Open Gambito Reti |
0-1 | A09 | |
| 2012.08.05 | Niewenhuis, R. (1962) vs (2122) Stange, S. 16th HZ Open Reti Simétrica |
1/2-1/2 | A05 | |
| 2010.08.14 | Bottema, M. (2076) vs (1898) Niewenhuis, R. 14th HZ Open Neo-India |
1-0 | E00 | |
| 2010.08.13 | Niewenhuis, R. (1898) vs (2204) Balje, J. 14th HZ Open Semi-Eslava |
0-1 | D43 | |
| 2010.08.12 | Bodicker, R. (2080) vs (1898) Niewenhuis, R. 14th HZ Open India de dama - Petrosian |
0-1 | E12 | |
| 2010.08.07 | Niewenhuis, R. (1898) vs (2455) Bosboom, M. 14th HZ Open Reti - Wade |
0-1 | A04 | |
| 2009.08.01 | Niewenhuis, R. (1913) vs (2444) Bosboom, M. HZ Open Reti - Wade |
0-1 | A04 | |
| 2008.08.06 | Gorissen, Hug (2054) vs Niewenhuis, Ruud 12th HZ Open Reti Simétrica - Barcza |
1-0 | A05 |