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- B20 - B99 - 1. e4 c5 - Sicilian Defense, B90 - 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 - Sicilian Defense: Najdorf Variation, B90 - 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. h3 - Sicilian Defense: Najdorf Variation, Adams Attack, B90 - 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4.... - Sicilian Defense, B90-B99 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 Sicilian, Najdorf, SÉRIE B 1.e4 2....
81. Tata Steel GpA 2019 – Round 10.3 – Van Foreest, Jorden – 1-0 – Nepomniachtchi, Ian – G59

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- 5.Nc3 (not 5...b5, 5...d6, 5...Nxd4, 5...Nxe4, 5...Be7, 5...exd4, 6.Bb3), C70-C79 Ruy Lopez1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 ....., C77 - 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 - Ruy Lopez, C77 - 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. d3 - Ruy Lopez: Morphy Defense, Anderssen Variation, SÉRIE C
81. Tata Steel GpA 2019 – Round 10.4 – Carlsen, Magnus – 1-0 – Anand, Viswanathan – G60

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- 6.O-O O-O — Main Line, 7.Qc2 a6 8.Qxc4 b5 9.Qc2 Bb7 10.Bd2 Be4, 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
81. Tata Steel GpA 2019 – Round 10.6 – Shankland, Sam – 1/2-1/2 – Radjabov, Teimour – G62

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