[Event "Moscow Smyslov Region Group Cup"] [Site "Moscow"] [Date "2021.08.16"] [Round "10"] [White "Lagno, Kateryna"] [Black "Zvjaginsev, Vadim"] [Result "1-0"] [WhiteElo "2559"] [BlackElo "2608"] [PlyCount "41"] [EventDate "2021.??.??"] 1. e4 g6 {Many GM's reply first with 1...g6 line but transposes into several opening set-up. Now, learning 1...g6 line also enriches your chess opening knowledge.} 2. d4 Bg7 3. Nc3 d6 4. Be3 a6 {The motive of this prophylactic move is to expand pawn and piece formation at queenside while delaying castling.} 5. Nf3 Nf6 6. Qd2 b5 ({If} 6... Ng4 7. Bf4 O-O 8. h3 Nf6 9. Bd3 Nbd7 10. e5) 7. Bh6 Bxh6 8. Qxh6 {I think this is awkward for black. The king stays at the center, while white is ready to castle and ready to strike as well. As you can see, the game did not last due to black's bad judgment.} b4 9. Nd5 Nbd7 10. Nxf6+ exf6 11. Qg7 Ke7 {Black wants to trap the queen then force exchange.} 12. Qh6 Bb7 13. O-O-O {Here we go... white now has to strike the center!!! GM Lagno is such a well prepared chessplayer and NO FEAR.} Qf8 14. Qd2 a5 15. e5 { Yes, this is the way to break the center...} h5 16. exd6+ cxd6 17. Qe2+ { It's just a matter of time...when black's defense surely will collapse.} Kd8 18. Qb5 {The black queen at f8 can't rescue the Royal Highness at d8...} Ra7 19. Bc4 h4 {Black wants to utilize the rook to h5 square but it's too late.} 20. d5 {Now, the knight at f3 will cause black's nightmare in a few moves.} Nc5 21. Qb6+ {Black Resigned: Due to the rook at a7 is free. What we learn from this game is about black's use of a6 line and why black delays castling. GM Kateryna Lagno showed us the best way to deal with this type of variation. Thanks GM Lagno for this wonderful game...} 1-0