Instructive Game 5 :- Fischer, Robert James–Fine, Reuben

As A training, Try to find the next best move when you see a diagram before scrolling down 

[Event "New York"] [Site "New York"] [Date "1963.??.??"] [Round "?"] [White "Fischer, Robert James"] [Black "Fine, Reuben"] [Result "*"] [ECO "C52"] [PlyCount "39"] [EventDate "1963.??.??"] [EventType "game"] [EventRounds "1"] [EventCountry "USA"] [Source "ChessBase"] [SourceDate "1999.07.01"] 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. b4 {Evams Gambit} Bxb4 (4... Nxb4 {Is bad because} 5. Nxe5) 5. c3 Ba5 6. d4 exd4 7. O-O dxc3 {What is the move for White here to activate a piece and create a threat immediately ? [#]} 8. Qb3 { [%csl Gf7][%cal Gc4f7]} Qe7 9. Nxc3 $14 {[%cal Gc3d5]} (9. Ba3 d6 $11) 9... Nf6 $2 {This is a mistake , Can you find the best move for White [#]} (9... Bxc3 10. Qxc3 $14) 10. Nd5 $18 ({Is also a good attacking move} 10. e5 $16 { Houdini 3 Pro x64: 1)} Nxe5 ({Houdini 3 Pro x64: 2)} 10... Bxc3 11. exf6 Bxf6 12. Ba3 d6 13. Rae1 Ne5 14. Nxe5 Bxe5 15. f4 Bd4+ 16. Kh1 Be6 17. f5 O-O 18. fxe6 fxe6 19. Rxe6 Rxf1+ 20. Bxf1 Qf7 21. Bc4 Kh8 22. Qxb7 Rf8 23. Qf3 Qxf3 24. gxf3 g5 25. Kg2 Bf6 26. Re4 Kg7 27. f4 h6 28. Bc1 Rb8 29. fxg5 hxg5 30. Bb3 a6 31. Ra4 Re8 32. Rxa6 {[%eval 282,24] 2.82/24}) 11. Ba3 Nxf3+ 12. gxf3 d6 13. Rfe1 Be6 14. Bxe6 O-O 15. Bf5 Qd8 16. Rad1 Bb6 17. Bb2 Re8 18. Ne4 Nxe4 19. fxe4 Qh4 20. Qg3 Qxg3+ 21. hxg3 Bc5 22. Kg2 Rad8 23. e5 dxe5 24. Rxe5 b6 25. Rd7 Rf8 26. Red5 Bd6 27. Rd1 Rxd7 28. Bxd7 Rd8 29. Bc6 {[%eval 159,24] 1.59/24} ) 10... Nxd5 {Now you have a choice, you can take back with the bishop or with pawn, which is better [#]} 11. exd5 {[%cal Ge1e7,Gd5c6]} Ne5 12. Nxe5 Qxe5 { Try to find a Good move here that also develop a piece and attack? [#]} 13. Bb2 Qg5 {Try to find the best move here ? [#]} 14. h4 (14. f4 {It has the same idea of h4 but much weaker than h4 because it open the diagonal of the king}) (14. Qa3 {[%csl Ge7][%cal Ga3a5,Ga3e7,Gf1e1,Ge1e7] Is a very strong move too, hitting the bishop on h5 and sitting on the f8-a3 diagonal with threats to checkmate after Re1+} d6 15. Qxa5) 14... Qxh4 15. Bxg7 Rg8 {What can you do here? [#]} 16. Rfe1+ Kd8 (16... Bxe1 17. Rxe1+ Kd8 {Transpose}) 17. Qg3 {[%cal Gg7f6] Here Fischer opponent resigns} (17. g3 $2 Rxg7) 17... Qe7 ( 17... Qxg3 18. Bf6#) (17... Rxg7 18. Qxh4+ f6 19. Qxf6+ Re7 20. Qxe7#) 18. Rxe7 (18. Rxe7 d6 19. Rxf7 Ke8 20. Qf3 Rxg7 21. Rf8+ Kd7 22. Qf5+ Ke7 23. Qf6+ Kd7 24. Qxg7#) 18... Kxe7 19. Qe5+ Kd8 20. Bf6# *