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- A10-A39 English Opening, A20 - 1. c4 e5 - English Opening: King's English Variation, A20 - 1. c4 e5 2. Nf3 - English Opening: King's English Variation, Nimzowitsch Variation, A20 - 1. c4 e5 2. Nf3 e4 - English Opening: King's English Variation, Nimzowitsch-Flohr Variation, SÉRIE A
FIDE Grand Swiss 2025 – Round 4 – Donchenko Alexander – 1/2-1/2 – Robson Ray – G215
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- E20-E59 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 Nimzo-Indian defence, E39 - 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 c5 5. dxc5 O-O - Nimzo-Indian Defense: Classical Variation, Berlin Variation, Pirc Variation, SÉRIE E
FIDE Grand Swiss 2025 – Round 4 – Eljanov Pavel – 1/2-1/2 – Ponomariov Ruslan – G201
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- C50 - 1. e4 e5 2. Nf3 Nc6 3. Bc4 - Italian Game, C50 - 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 - Italian Game: Giuoco Piano, C50 - 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. d3 - Italian Game: Giuoco Pianissimo, C50 - 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. d3 Nf6 - Italian Game: Giuoco Pianissimo, Normal, C50 - 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d3 Bc5 - Italian Game: Giuoco Pianissimo, Normal, C50 - 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d3 Bc5 5. Nc3 - Italian Game: Giuoco Pianissimo, Italian Four Knights Variation, C50-C59 1. e4 e5 2. Nf3 Nc6 3. Bc4 Italian Game, SÉRIE C
FIDE Grand Swiss 2025 – Round 4 – Esipenko Andrey – 1/2-1/2 – Suleymanli Aydin – G189
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- E20-E59 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 Nimzo-Indian defence, E32 - 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 - Nimzo-Indian Defense: Classical Variation, E32 - 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 O-O, SÉRIE E
FIDE Grand Swiss 2025 – Round 4 – Fedoseev Vladimir – 1-0 – Martirosyan Haik M. – G213
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- D43-D49 Queen's Gambit Declined semi-Slav1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Nf3 c6, D45 - 1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. e3 e6 5. Nf3 - Semi-Slav Defense: Main Line, D45 - 1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. e3 e6 5. Nf3 a6 - Semi-Slav Defense: Accelerated Meran Variation, SÉRIE D
FIDE Grand Swiss 2025 – Round 4 – Firouzja Alireza – 1/2-1/2 – Gumularz Szymon – G178
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- B20 - B99 - 1. e4 c5 - Sicilian Defense, B30 - 1. e4 c5 2. Nf3 Nc6 - Sicilian Defense: Old Sicilian, B30 - 1. e4 c5 2. Nf3 Nc6 3. Bb5 - Sicilian Defense: Nyezhmetdinov-Rossolimo Attack, B30 - 1. e4 c5 2. Nf3 Nc6 3. Bb5 - Sicilian Defense: Nyezhmetdinov-Rossolimo Attack, B30 - 1. e4 c5 2. Nf3 Nc6 3. Bb5 e6, B30 - 1. e4 c5 2. Nf3 Nc6 3. Bb5 e6 4. O-O Nge7 - 1. e4 c5 2. Nf3 Nc6 3. Bb5 e6, B30 - 1. e4 c5 2. Nf3 Nc6 3. Bb5 e6 4. O-O Nge7 5. Re1 Ng6 - 1. e4 c5 2. Nf3 Nc6 3. Bb5 e6, B30 - B39 1.e4 c5 2. Nf3 Nc6 Sicilian defence, SÉRIE B 1.e4 2....
FIDE Grand Swiss 2025 – Round 4 – Goryachkina Aleksandra – 1-0 – Kollars Dmitrij – G224
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- C60-C69 1. e4 e5 2. Nf3 Nc6 3. Bb5 Ruy Lopez (Spanish opening), C65 - 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 - Ruy Lopez, C65 - 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. d3 - Ruy Lopez: Berlin Defense, C65 - 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. d3 d6 - Ruy Lopez, SÉRIE C
FIDE Grand Swiss 2025 – Round 4 – Grischuk Alexander – 1/2-1/2 – Daneshvar Bardiya – G219
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- B20 - B99 - 1. e4 c5 - Sicilian Defense, B30 - 1. e4 c5 2. Nf3 Nc6 - Sicilian Defense: Old Sicilian, B30 - 1. e4 c5 2. Nf3 Nc6 3. Bb5 - Sicilian Defense: Nyezhmetdinov-Rossolimo Attack, B30 - 1. e4 c5 2. Nf3 Nc6 3. Bb5 - Sicilian Defense: Nyezhmetdinov-Rossolimo Attack, B30 - 1. e4 c5 2. Nf3 Nc6 3. Bb5 e6, B30 - 1. e4 c5 2. Nf3 Nc6 3. Bb5 e6 4. Bxc6 bxc6 - 1. e4 c5 2. Nf3 Nc6 3. Bb5 e6, B30 - B39 1.e4 c5 2. Nf3 Nc6 Sicilian defence, SÉRIE B 1.e4 2....
FIDE Grand Swiss 2025 – Round 4 – Hammer Jon Ludvig – 0-1 – Sadhwani Raunak – G218
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- B20 - B99 - 1. e4 c5 - Sicilian Defense, B50-B59 Sicilian 1. e4 c5 2. Nf3 d6, B51 - 1. e4 c5 2. Nf3 d6 3. Bb5+ - Sicilian Defense: Moscow Variation, B51 - 1. e4 c5 2. Nf3 d6 3. Bb5+ Nd7 4. d4 - Sicilian Defense: Moscow Variation, SÉRIE B 1.e4 2....
FIDE Grand Swiss 2025 – Round 4 – Harikrishna Pentala – 1/2-1/2 – Xiong Jeffery – G196
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- C40-C49 King's knight opening, C43 - 1. e4 e5 2. Bc4 Nf6 3. d4 exd4 4.... - Bishop's Opening, C43 - 1. e4 e5 2. Nf3 Nf6 3. d4 - Petrov's Defense: Modern Attack, C43 - 1. e4 e5 2. Nf3 Nf6 3. d4 Nxe4 - Petrov's Defense: Modern Attack, C43 - 1. e4 e5 2. Nf3 Nf6 3. d4 Nxe4 4. Bd3 - Petrov's Defense: Modern Attack, Center Variation, C43 - 1. e4 e5 2. Nf3 Nf6 3. d4 Nxe4 4. Bd3 d5 5. Nxe5 Nd7 - Petrov's Defense: Modern Attack, Center Variation, C43 - 1. e4 e5 2. Nf3 Nf6 3. d4 Nxe4 4. Bd3 d5 5. Nxe5 Nd7 6. Nc3 - Petrov's Defense: Modern Attack, Center Variation, SÉRIE C
FIDE Grand Swiss 2025 – Round 4 – Henriquez Villagra Cristobal – 0-1 – Bluebaum Matthias – G191
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- D80-D99 Gruenfeld defence1. d4 Nf6 2. c4 g6 3. Nc3 d5, D85 - 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 Bg7 7. Nf3 - Grünfeld Defense: Exchange Variation, Modern Exchange Variation, D85 - 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 Bg7 7. Nf3 c5 - Grünfeld Defense: Exchange Variation, Modern Exchange Variation, D85 - 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 Bg7 7. Nf3 c5 8. Bb5 - Grünfeld Defense: Exchange Variation, Modern Exchange Variation, D85 - 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5- Grünfeld Defense, SÉRIE D
FIDE Grand Swiss 2025 – Round 4 – Indjic Aleksandar – 1-0 – Vakhidov Jakhongir – G222
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