[Event "Ch Poland"] [Site "masterchessopen.com – Katowice (Poland)"] [Date "1952.10.13"] [Round "7"] [White "Witkowski Stefan (POL)"] [Black "Sliwa Bogdan (POL)"] [Result "0-1"] [WhiteElo "2178"] [BlackElo "2235"] [ECO "C70"] [Opening "Spanish: 4.Ba4"] 1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Nxe4 6.d4 b5 7.Bb3 d5 8.a4 Nxd4 9.Nxd4 exd4 10.axb5 Bc5 11.c3 O-O 12.cxd4 Bb6 13.Nc3 Bb7 14.bxa6 Rxa6 15.Rxa6 Bxa6 16.Re1 Bb7 17.f3 Ng5 18.Kh1 Ne6 19.Be3 c6 20.Na4 Ba5 21.Re2 Re8 22.Bf2 Ba6 23.Re3 Nf4 24.Nc3 Rxe3 25.Bxe3 Nd3 26.Qc2 Qh4 27.Bg1 Qe1 28.Ba4 Bb6 {#R} 0-1