[Event "It (open)"] [Site "masterchessopen.com - Finland"] [Round "0"] [White "Mantysalo Jyri"] [Black "Mertens Teuvo"] [Result "1-0"] [ECO "A05"] [Opening "Reti: KIA"] 1.Nf3 Nf6 2.g3 g6 3.b3 d5 4.Bb2 Bg7 5.Bg2 O-O 6.O-O c6 7.d3 Nbd7 8.Nbd2 Qc7 9.c4 Re8 10.cxd5 Nxd5 11.Bxg7 Kxg7 12.e4 N5b6 13.d4 Nf6 14.Ne5 Rd8 15.Ndc4 Be6 16.Qd2 Ne8 17.Qc3 f6 18.Nd3 Nd6 19.Nc5 Bf7 20.d5 cxd5 21.Nxd6 {#r} 1-0