B20 - Sicilian Defence: Unusual / 2.a3

Variation: Sicilian Defence: Unusual / 2.a3

Initial Move: The starting point for the most popular and complex response to 1.e4. It creates immediate asymmetry and offers chances for a win for both sides. Learn this opening step by step

Montenegro Open - Mediterranean Championship 2026 | OPEN A - Round 5: Shyam, Sundar M. - Han, Yichen
2026.07.07
GM Shyam, Sundar M. (2498)
IM Han, Yichen (2418)
결과 1/2-1/2
Opening B20
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Drużynowe Mistrzostwa Polski - Ekstraliga 2026 - Druzynowe Mistrzostwa Polski - Ekstraliga 2026
2026.06.22
GM Leniart, Arkadiusz (2473)
GM Dehtiarov, Roman (2508)
결과 1/2-1/2
Opening B20
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Green Diamond Invitational 2026 | Main Event - Green Diamond Invitational 2026
2026.06.20
GM Thorfinnsson, Bragi (2370)
FM Ulfarsson, Magnus Orn (2351)
결과 0-1
Opening B20
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Majstrovstvá Slovenska 2026 | Open - Majstrovstva SR
2026.06.19
GM Druska, Juraj (2459)
IM Neugebauer, Martin (2469)
결과 1/2-1/2
Opening B20
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3rd UzChess Cup 2026 | Challengers - Round 8: Deac, Bogdan-Daniel - Aditya Mittal
2026.06.14
GM Deac, Bogdan-Daniel (2644)
GM Aditya Mittal (2610)
결과 1-0
Opening B20
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360 One Masters Chess Tournament | Masters - 360 ONE MASTERS CHESS TOURNAMENT 2026
2026.06.08
GM Savchenko, Boris (2466)
GM Iniyan, Pa (2591)
결과 0-1
Opening B20
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Championnat de France des Clubs 2026 | Elimination | Groupe A - Round 7: Abergel, Thal - Hamdouchi, Hicham
2026.06.10
GM Abergel, Thal (2402)
GM Hamdouchi, Hicham (2492)
결과 1/2-1/2
Opening B20
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European Senior Chess Championship 2026 | 65+ - Round 5: Legky, Nikolay A - Lederman, Leon
2026.06.06
GM Legky, Nikolay A (2320)
IM Lederman, Leon (2153)
결과 1-0
Opening B20
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IV Open Ciudad de Buenos Aires - Round 8: Larino Nieto, David - Valerga, Diego
2026.05.24
GM Larino Nieto, David (2428)
GM Valerga, Diego (2442)
결과 1/2-1/2
Opening B20
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2026 Chess.com Open | Playoffs | Winners - 2026 Chesscom Open Playoffs
2026.04.21
GM Carlsen, Magnus (2823)
GM Duda, Jan-Krzysztof (2743)
결과 1/2-1/2
Opening B20
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