1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d4 d5 6. Bd3 Nc6 7. O-O Be7 8. c4 Nf6 9. Nc3 O-O 10. h3 dxc4 11. Bxc4 Na5 12. Bd3 Be6 13. Re1 Nc6 14. Bg5 h6 15. Bh4 Nd5 16. Bg3 Bd6 17. Bxd6 cxd6 18. Qd2 Nce7 19. Re2 Rc8 20. Rae1 Qc7 21. Nxd5 Nxd5 22. Nh4 Bd7 23. Nf5 Bxf5 24. Bxf5 Rcd8 25. Bg4 Nf6 26. Re7 Qb6 27. Bf3 d5 28. R1e3 Rb8 29. Rb3 Qa6 30. a3 Rfc8 31. Rc3 Qb6 32. g3 Kf8 33. Re5 Rxc3 34. Qxc3 Rd8 35. Kg2 Qd6 36. h4 b6 37. Re1 g6 38. Rc1 Rd7 39. Qc8+ Kg7 40. Rc6 Qe7 41. Rxf6!! Kxf6 42. Qh8+ Kf5

42... Ke6?? 43. Qe5#

43. g4+ Kf4 44. Qxh6+ g5 45. hxg5

There is no defence to g6+ or 45.Qh2+ Kxg5 46.Qh5+ Kf6 47.Qh6 mate

45. hxg5 Qd8 46. g6+ Qg5 47. Qh2#

1-0

1. d4 g6 2. c4 Bg7 3. Nf3 c5 4. d5 Nf6 5. Nc3 d6 6. g3 O-O 7. Bg2 e6 8. O-O exd5 9. cxd5 Na6 10. Nd2 Nc7 11. Nc4 b6 12. Nxd6!! Qxd6 13. Bf4 Qd7 14. d6

Now white regains the piece with interest

14... Ne6 15. Bxa8 Nxf4 16. gxf4 Qg4+ 17. Bg2 Qxf4 18. e3 Qe5 19. Re1 g5 20. Qf3 Qxd6 21. Qg3!

Forcing a queen swap - and a better ending

21... Qxg3 22. hxg3 g4 23. Rad1 Be6 24. Rd2 Nd7 25. Nd5 Ne5 26. b3 Rb8 27. Red1 Kf8 28. Nf4 Ke7 29. Be4 h6 30. Kg2 Rc8 31. Rd6 Rb8 32. Nxe6 fxe6 33. Bc6 Rf8 34. Bd7 Rf6 35. Bb5 h5 36. Rd8 h4 37. gxh4 Rh6 38. Ra8 Nf3 39. Rxa7+ Kf6 40. Rdd7 Nxh4+ 41. Kg3 Nf5+ 42. Kxg4 Rh1 43. Bd3 Ke5 44. f4+

44. f4+ Kf6 45. Rf7+ Kg6 46. Rxg7+!

1-0

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. b4

The famous Evans Gambit. White offers a pawn to speed up his development. Unlike many old-fashioned gambits, this line is still occasionally played in top-level chess by players such as England's Nigel Short.

4... Bxb4 5. c3 Ba5 6. d4! exd4 7. O-O!

Continuing in the gambit spirit

7... Bb6 8. cxd4 d6 9. d5 Na5 10. Bb2!? Ne7!?

10... Nxc4 11. Bxg7 or Qa4+

11. Bd3 O-O 12. Nc3

Black's Na5 is badly offside.

12... Ng6

...Bg4!? was also possible, and black might like to retreat it to g6 via h5 to bolster the defence

13. Ne2

Stopping ...Nf4, uncovering the Bb2, and preparing Bc3/Qa4 to capture the Na5

13... c5 14. Qd2 f6 15. Kh1 Bc7 16. Rac1 Rb8 17. Ng3 b5 18. Nf5 b4 19. Rg1 Bb6 20. g4 Ne5 21. Bxe5

If Nxe5 the Bb2 would be biting on granite

21... dxe5 22. Rg3 Rf7 23. g5 Bxf5 24. exf5 Qxd5 25. gxf6!? Rd8

Now it looks like black will win the Bd3

26. Rcg1 Kh8

26... Qxd3 27. Qh6!!

27. fxg7+ Kg8 28. Qh6!! Qd6 29. Qxh7+!! Kxh7 30. f6+!! Kg8

30... Qxd3 31. Rh3+ Kg8 32. Rh8#

31. Bh7+!! Kxh7 32. Rh3+ Kg8 33. Rh8# 1-0

1. e4 e6 2. d4 d5 3. Nd2 dxe4 4. Nxe4 Nd7 5. Nf3 Ngf6 6. Nxf6+ Nxf6 7. c3 c5 8. Ne5 a6 9. Bg5 Qd5 10. Bxf6 gxf6 11. Nc4 cxd4 12. Nb6 Qe4+ 13. Be2 Rb8 14. O-O dxc3 15. bxc3 Bc5! 16. Rb1 Qc6?!

Maybe ...Bxb6 was better, though black will have problems developing

17. Bf3 Qc7 18. Qa4+ Ke7 19. Qa5 Bd6 20. Rfe1!

The h2 pawn doesn't matter

20... Bxh2+ 21. Kh1 Be5?? 22. Nd5+ 1-0

1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d4 d5 6. Bd3 Nc6 7. O-O Be7 8. c4 Nf6 9. Nc3 O-O 10. h3 dxc4 11. Bxc4 Na5 12. Bd3 Be6 13. Re1 Nc6 14. Bg5 h6 15. Bh4 Nd5 16. Bg3 Bd6 17. Bxd6 cxd6!?

Although isolated, the pawn on d6 is not exposed to direct attack and usefully controls e5

18. Qd2 Nce7 19. Re2 Rc8 20. Rae1 Qc7 21. Nxd5 Nxd5 22. Nh4 Bd7 23. Nf5 Bxf5 24. Bxf5 Rcd8 25. Bg4 Nf6

Allows Re7, but that was coming soon enough anyway, perhaps after Bf3

26. Re7 Qb6 27. Bf3 d5 28. R1e3 Rb8 29. Rb3 Qa6 30. a3 Rfc8 31. Rc3 Qb6 32. g3 Kf8 33. Re5 Rxc3 34. Qxc3 Rd8 35. Kg2 Qd6 36. h4 b6 37. Re1 g6 38. Rc1 Rd7 39. Qc8+ Kg7 40. Rc6! Qe7 41. Rxf6!! Kxf6 42. Qh8+ Kf5 43. g4+ Kf4 44. Qxh6+ g5 45. hxg5

There's no defence against either 46 g6+ Qg5 47.Qh2! mate or 46.Qh2+ Kxg5 47.Qh5+ Kf6 48.Qh6 mate.

1-0

1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Be7 5. Bf4 O-O 6. e3 Nbd7 7. c5 c6 8. h3 b6 9. b4 a5 10. a3 Ba6 11. Bxa6 Rxa6 12. b5!? cxb5 13. c6! Qc8! 14. c7 b4 15. Nb5 a4 16. Rc1 Ne4 17. Nd2 Ndf6 18. f3 Ra5 19. fxe4 Rxb5 20. Bg5!

Threatening to win a piece with e5

20... b3 21. e5 b2 22. Rc2 Ne4 23. Bxe7 Nxd2 24. Kxd2! b1=Q 25. Qxb1 Rxb1 26. Rxb1 Re8 27. Rxb6! Qa8 28. c8=Q!! Rxc8 29. Rxc8+ Qxc8 30. Bd6! 1-0

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 a6 6. Nxc6 bxc6 7. Bd3 d5 8. O-O Nf6 9. Re1 Bb7 10. Bf4 Be7 11. Qf3 Qa5 12. a3 d4 13. e5! dxc3 14. exf6 cxb2 15. fxe7!! bxa1=Q 16. Rxa1 Kxe7 17. Rb1!

It's obvious white has plenty for the exchange

17... Bc8 18. Qg3! Kf8 19. Bd6+ Kg8 20. Be5 g6 21. Qg5!

21. Bxh8 Kxh8 22. Rb8 Rxb8 23. Qxb8 Qd8 24. Bxa6 Qd1+ 25. Bf1 Qd8 is less clear

21... h6 22. Qf6 Rh7 23. Bxg6!! fxg6 24. Qxg6+ Kf8 25. Bd6+!

25. Bd6+ Re7 26. Qf6+

1-0