A favourite game, featuring an unusual knight tour Morozevich vs Ivanchuk, 1995  (C80) Ruy Lopez, Open, 32 moves, 0-1 Qf1, a beautiful and famous example Fischer vs J Sherwin, 1957  (B90) Sicilian, Najdorf, 36 moves, 1-0 20.Re7, a startling deflection/interference S Polgar vs P Hardicsay, 1985  (A60) Benoni Defense, 22 moves, 1-0 19.Nd5, a rather advanced obstruction combination J Gallagher vs J Bellin, 1984  (B12) Caro-Kann Defense, 21 moves, 1-0 26.Rg2, brilliant quiet move, unpinning V Soultanbeieff vs V I Borodin, 1943  (B85) Sicilian, Scheveningen, Classical, 26 moves, 1-0 The unplayed defence 23.Rf3!! Rubinstein vs Spielmann, 1912   (A84) Dutch, 42 moves, 0-1 22.Bc4! (interference/Q trp); 32.Bd6+! (dbl interference) G Lane vs S Djuric, 2001  (B40) Sicilian, 32 moves, 1-0 23.Be4!! M Wahls vs Ftacnik, 1992  (B93) Sicilian, Najdorf, 6.f4, 61 moves, 1/2-1/2 simple-but-pleasing, multipurpose Bc7 Tal vs Botvinnik, 1960  (A87) Dutch, Leningrad, Main Variation, 41 moves, 1-0 12.Nf6+, what you might call a positional interference Tal vs Bobotsov, 1963  (B94) Sicilian, Najdorf, 42 moves, 1-0 49..Nc3, a promotion/simplification tactic L Engels vs Bogoljubov, 1933 (D63) Queen's Gambit Declined, Orthodox Defense, 69 moves, 0-1 12.Ne6, unpinning; a one-sided but cute miniature Kotronias vs P Pandavos, 1993  (C40) King's Knight Opening, 15 moves, 1-0 18.Nd7 Miles vs Spassky, 1978   (E12) Queen's Indian, 28 moves, 1-0 Another well-known example L Rellstab vs Najdorf, 1950  (E94) King's Indian, Orthodox, 25 moves, 0-1 A simple example: Bf8 J Penrose vs C van den Berg, 1952  (C18) French, Winawer, 36 moves, 1-0 39..Bg4 P Popovic vs L Christiansen, 1985 (B17) Caro-Kann, Steinitz Variation, 39 moves, 0-1 10.e6 "board cutting"; 57.b7+ forces fatal obstruction Bxb7 G Altan-Och vs I Karim, 2004  (E74) King's Indian, Averbakh, 6...c5, 57 moves, 1-0 the unplayed winning move 51...Ng3 H Happel vs P Burlage, 2000  (E25) Nimzo-Indian, Samisch, 55 moves, 1-0 34..Rc4 Tseshkovsky vs Miles, 1989  (B00) Uncommon King's Pawn Opening, 38 moves, 0-1 Steinitz vs S Hamel, 1867  (B01) Scandinavian, 30 moves, 1-0 16..Bb4+ Karpov vs Polgar, 2003  (E12) Queen's Indian, 33 moves, 0-1 25.Re6 Smyslov vs V Liberzon, 1969  (A10) English, 32 moves, 1-0 24.Ne6 Kasparov vs Kramnik, 1994  (B33) Sicilian, 36 moves, 1-0 20.d7!! Kasparov vs J Pribyl, 1980  (D85) Grunfeld, 31 moves, 1-0 Timman vs Kasparov, 1988  (E88) King's Indian, Samisch, Orthodox, 7.d5 c6, 45 moves, 0-1 25 games