[Event "Monte Carlo"] [Site "Monte Carlo"] [Date "1968.??.??"] [Round "7"] [White "Botvinnik, Mikhail"] [Black "Portisch, Lajos"] [Result "1-0"] [ECO "A29"] [Annotator "peter"] [SetUp "1"] [FEN "rn1qrbk1/1pp2ppp/8/p2bp3/Q7/P2PBNP1/1PR1PPBP/2R3K1 w - - 0 16"] [PlyCount "27"] [EventDate "1968.04.??"] [EventType "tourn"] [EventRounds "13"] [EventCountry "MNC"] [SourceTitle "MCD"] [Source "ChessBase"] [SourceDate "1999.07.01"] [SourceVersion "1"] [SourceVersionDate "1999.07.01"] [SourceQuality "1"] {[#]} 16. Rxc7 $3 Bc6 17. R1xc6 $1 (17. R7xc6 {Portisch must have been expecting this when White has compensation for this exchange but Black has a very playable position} Nxc6 $11) 17... bxc6 18. Rxf7 $1 {the point! The rook cannot be taken.} h6 (18... Kxf7 19. Qc4+ Ke7 (19... Re6 20. Ng5+ Qxg5 21. Bxg5 {and the rook on e6 falls to Bh3}) (19... Kg6 20. Qe4+ Kf7 21. Ng5+ Ke7 (21... Kf6 22. Qf3+ Kg6 23. Qf7+ Kh6 24. Bf3 g6 25. Qxh7#) 22. Qxe5+ Kd7 23. Bh3+ $18) (19... Kf6 20. Bg5+ Kg6 21. Bxd8 Rxd8 22. Qe6+ Kh5 23. g4#) 20. Bg5+ (20. Nxe5 {is even stronger}) 20... Kd7 21. Bh3+ Kc7 22. Bxd8+ Rxd8 23. Nxe5 $18) 19. Rb7 Qc8 20. Qc4+ Kh8 21. Nh4 Qxb7 (21... Qe6 22. Qe4 {Black is too weak on the White squares to survive and the obvious knight move even allows White to swap queens off, e.g.} Nd7 23. Qg6 Qxg6 (23... Nf6 24. Bxh6 gxh6 25. Bh3) 24. Nxg6+ Kh7 (24... Kg8 25. Rxd7 $18) 25. Be4 Nf6 26. Nxf8+ Kg8 27. Nd7 $18 {White has a decisive material advantage}) 22. Ng6+ Kh7 23. Be4 {theatening Ne7+ and Qg8 mate} Bd6 24. Nxe5+ g6 (24... Kh8 25. Nf7+ Kg8 26. Nxd6+ Kh8 27. Nxb7) 25. Bxg6+ Kg7 26. Bxh6+ $1 Kxh6 (26... Kh8 27. Nf7+ Kg8 28. Nxd6+ Kh8 29. Qd4+ Kg8 30. Nxb7 $18) (26... Kf6 27. Qf4+ Ke6 28. Bf7+ Qxf7 29. Qxf7+ Kxe5 30. Bg7#) 27. Qh4+ Kg7 28. Qh7+ Kf8 29. Qxb7 $18 1-0