[Event "Spielvogel, 2021"] [Site "Mechanics Institute"] [Date "2021.03.11"] [Round "5"] [White "van Riel, Bas"] [Black "Coffey, Ruari"] [Result "1-0"] [WhiteElo "1644"] [BlackElo "1701"] [ECO "A05"] [Opening "Reti: KIA"] 1.Nf3 Nf6 2.g3 g6 3.c4 Bg7 4.Bg2 O-O 5.O-O c6 6.d4 d5 7.cxd5 cxd5 8.Nc3 Nc6 9.e3 Bf5 10.a3 Ne4 11.Nh4 Nxc3 12.bxc3 Bc8 13.Qb3 e6 {(BvR) The intention of 13.Qb3 was to restrict black's white-bishop and making it weak. This became the theme of the game until the end. However, in the short term, it allows black to post a powerful knight on c4. When I played Qb3, I had spent about 10 minutes to work out the pros and cons, and convincing myself that it was worthwhile trying...} 14.Re1 Na5 15.Qc2 Bd7 16.a4 Bc6 17.Nf3 Nc4 18.Nd2 Rc8 19.Nxc4 dxc4 20.e4 f5 21.f3 {(BvR) 21.d5 is tempting, exd5; 22.exd5, Bxd5?; 23.Rd1 is winning for white. I could not work out the complications of my disconnected passed d-pawn after 22...Be8} Rf7 22.Be3 b5 23.axb5 Bxb5 24.Red1 Rd7 25.d5 exd5 26.exf5 gxf5 27.Bxa7 {(BvR) Bh3 instead} Ra8 28.Bf2 f4 29.Rxa8 Qxa8 30.Bd4 fxg3 31.hxg3 Bxd4+ 32.Rxd4 Qa1+ 33.Kh2 Qa6 34.Qf5 Qd6 35.Bh3 Kh8 36.Qg5 Qe7 37.Qd2! Rd6 38.Rxd5 Rxd5 39.Qxd5 Qe2+ 40.Bg2 Qe8 41.f4 Kg7 42.Qg5+ Kh8 43.Qf6+ Kg8 44.Bd5+ {#r} 1-0