[Event "World Championship 26th"] [Site "Moscow RUS"] [Date "1966.04.27"] [Round "8"] [White "Petrosian, Tigran V"] [Black "Spassky, Boris V"] [Result "1/2-1/2"] [ECO "A33"] [EventDate "1966.04.11"] 1.c4 c5 2.Nf3 Nf6 3.Nc3 Nc6 4.d4 cxd4 5.Nxd4 e6 6.e3 Be7 7.Be2 O-O 8.O-O d6 9.b3 a6 10.Bb2 Bd7 11.Qd2 Qc7 12.Rac1 Rac8 13.Rfd1 Qb8 14.Nf3 Rfd8 15. Bd3 Be8 16.Qe2 d5 17.cxd5 Nxd5 18.Nxd5 Rxd5 19.a3 Rcd8 20.Be4 Rxd1+ 21. Rxd1 Rxd1+ 22.Qxd1 Qd8 23.Qxd8 Bxd8 1/2-1/2