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| Game |
| Result | Moves |
Year |
Event/Locale | Opening |
| 1. S Ionov vs R Janssen |
| 1-0 | 34 |
1999 |
Hoogovens B Tournament | E39 Nimzo-Indian, Classical, Pirc Variation |
| 2. Leitao vs R Janssen |
| ½-½ | 117 |
1999 |
Hoogovens B | E39 Nimzo-Indian, Classical, Pirc Variation |
| 3. J Berkvens vs R Janssen |
| ½-½ | 15 |
2001 |
Stork YM | E42 Nimzo-Indian, 4.e3 c5, 5.Ne2 (Rubinstein) |
| 4. Van Wely vs R Janssen |
| 1-0 | 33 |
2002 |
Essent ch-NED | E42 Nimzo-Indian, 4.e3 c5, 5.Ne2 (Rubinstein) |
| 5. S Ernst vs R Janssen |
| 0-1 | 35 |
2003 |
Dutch Championships | E48 Nimzo-Indian, 4.e3 O-O 5.Bd3 d5 |
| 6. Bosboom-Lanchava vs R Janssen |
| 1-0 | 31 |
2004 |
Wijk aan Zee C Group | E54 Nimzo-Indian, 4.e3, Gligoric System |
| 7. A Lauber vs R Janssen |
| 0-1 | 37 |
2009 |
2008-2009 Bundesliga | E21 Nimzo-Indian, Three Knights |
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Secrets of Opening Surprises
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