[Event "Ch Portugal (1/2 final)"] [Site "masterchessopen.com Portugal"] [Round "9"] [White "Prata Jose (POR)"] [Black "Carvalho Alda (POR)"] [Result "1-0"] [WhiteElo "2068"] [BlackElo "2041"] [ECO "D31"] [Opening "Semi-Slav: Noteboom, 5.a4"] 1.d4 d5 2.c4 e6 3.Nc3 c6 4.Nf3 dxc4 5.a4 Bb4 6.e4 b5 7.g3 Bb7 8.Bg2 a6 9.O-O Nd7 10.Bd2 Nb6 11.axb5 cxb5 12.e5 Bxc3 13.bxc3 Ne7 14.Qc2 O-O 15.Ng5 {#r} 1-0