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- 7.Nbd2 (not 7...Bf5, 7...Nbd7, 7...Ne4), D70-D79 1. d4 Nf6 2. c4 g6 3. f3 d5 Neo-Gruenfeld defence, D78 - 1. d4 Nf6 2. c4 g6 3. Nf3 Bg7 4. g3 O-O 5. Bg2 c6 6. O-O d5 - Neo-Grünfeld Defense: Classical Variation, Original Defense, SÉRIE D
2. Du Te Cup 2018 – Round 4.1 – Vitiugov, Nikita – 1/2-1/2 – Ding, Liren – G10

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- 6.O-O O-O — Main Line, 7.Qc2 a6 8.a4 Bd7 9.Qxc4 Bc6, E01-E09 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 Catalan, closed, E05 - 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 dxc4 5. Nf3 Be7 - Catalan Opening: Open Defense, Classical Line, SÉRIE E
2. Du Te Cup 2018 – Round 4.3 – Wojtaszek, Radoslaw – 1/2-1/2 – Aadvika Giri – G12

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- C80-C89 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 & C84-C89 C84 5. O-O Be7 Ruy Lopez, closed defence, C83 - 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 b5 7. Bb3 d5 8. dxe5 Be6 9. c3 Be7 - Ruy Lopez: Open, Classical Defense, SÉRIE C
2. Du Te Cup 2018 – Round 5.2 – Yu, Yangyi – 1-0 – Vitiugov, Nikita – G14

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