It is hard to overlook a game in which 4 queens are on the board simultaneously. This game features an exciting opening, middlegame and endgame. Both players unfortunately made several mistake in the latter, with quite a few probably due to time pressure, but both players also proved to be very resourceful in these tricky positions.
[Event "Eastern Ontario Open"]
[Site "Ottawa (Canada)"]
[Date "2015.06.19"]
[Round "1"]
[White "Pacey Kevin (CAN)"]
[Black "Dunne Francesco"]
[Result "1-0"]
[ECO "E17"]
[WhiteElo "2161"]
[BlackElo "2064"]
[PlyCount "167"]
[EventDate "2015.??.??"]
1. d4 Nf6 2. Nf3 e6 3. c4 b6 4. g3 Bb7 5. Bg2 Be7 6. Nc3 Ne4 7. Bd2 {Bf6, f5
or 0-0 are all common moves here. The key is to try to keep control over the
e4 square.} Nxc3 $6 {I'm not quite sure why Black played this move ; there is
no need to rush.} 8. Bxc3 O-O 9. Qd3 f5 {And now Black plays f5... It seems
like this position would be much better than it is now if Black still had its
knight in e4.} 10. O-O Bf6 11. Rac1 d6 12. Ne1 Bxg2 13. Nxg2 {Both players
light squares are somewhat weaker now, but since they both exchanged their
light-square bishops, it does not really favour either player.} Nd7 14. e4 fxe4
15. Qxe4 e5 (15... Qe8 16. Rfe1 e5) 16. b4 {Probably to prevent Nc5. However,
this allows Black to take in d4 and pretty much equalize.} (16. dxe5 Bxe5 17.
Bxe5 Nxe5 18. f4 {Would have given White a slight edge}) 16... exd4 17. Bxd4
Re8 18. Qd5+ Kh8 19. Rce1 Bxd4 20. Qxd4 Nf6 (20... Ne5 21. Re3 Qf6 {And Black
is more than fine.}) 21. Nf4 Qd7 22. Nd5 Nxd5 23. Qxd5 Rxe1 24. Rxe1 Rf8 25. b5
(25. c5 bxc5 26. bxc5 {And White is better and has good practical chances,
although with accurate play Black might be able to hold.}) 25... h6 26. Qe6
Qxe6 27. Rxe6 Kg8 $2 (27... Rf5 {And it's a dead draw.}) 28. Re7 Rf7 29. Re8+
Rf8 $4 (29... Kh7 30. Ra8 Rf5 31. Rxa7 Rc5 32. Ra4 {And with accurate play,
Black should be able to draw thanks to White's inactive rook.}) 30. Rxf8+ Kxf8
{As a general rule, do not go in pawn endings if you have a slightly worse
position, thinking you will be able to defend. It is better to be down a pawn
in a rook endgame than down a tempo in a pawn ending. In fact, Black is
completely lost here!} 31. Kg2 Ke7 32. Kf3 d5 33. cxd5 Kd6 34. Ke4 Kc5 35. Kf5
$2 {Probably still winning, but way more complicated than it should be.} (35.
f4 $1 Kxb5 36. g4 {+-}) 35... Kxd5 (35... Kxb5 36. f4 $18) 36. Kg6 Kc5 37. Kxg7
$2 {It's hard to explain why White didn't win a tempo by protecting the b5
pawn.} (37. a4 $1 c6 38. bxc6 Kxc6 39. Kxg7 a5 40. f4 b5 41. axb5+ Kxb5 42. f5
a4 43. f6 a3 44. f7 a2 45. f8=Q a1=Q+ 46. Kxh6 {+-}) 37... Kxb5 38. f4 c5 39.
f5 c4 40. f6 c3 41. f7 c2 42. f8=Q c1=Q {And now White has to win the game all
over again... His slight advantage might be enough, but it's not going to be
easy!} 43. Qe8+ Ka5 44. Qe5+ Qc5 45. Qe1+ Ka4 46. Qd1+ Ka5 47. Kxh6 (47. Qd7 b5
48. Kxh6 {Was slightly better}) 47... Qe3+ 48. Kh5 Qe5+ ({Black missed a good
opportunity to defend the game} 48... Qf2 $1 49. Qd5+ b5) 49. Kh4 Qf6+ 50. Kh3
Qe6+ 51. g4 {Black simply helped White push his g pawn, which can't be any
good. In queen endgames, pushing your pawns as fast as you can is often all
you need to do to win. Winning a pawn is probably not worth losing a tempo.}
Qxa2 52. Qe1+ Ka4 53. Qe4+ Ka5 54. g5 b5 55. g6 Qg8 56. Qf5 Qg7 57. Qf7 Qc3+
58. Kg4 Qc4+ 59. Kf5 $2 (59. Qxc4 bxc4 60. g7 c3 61. g8=Q c2 $18) 59... Qc5+
60. Kf6 Qd6+ 61. Kg7 b4 62. Qxa7+ Kb5 63. Qb7+ Ka4 64. Qa8+ Kb5 65. Qe8+ Ka5
66. Kf7 Qf4+ 67. Kg8 b3 {After a series of inaccurate moves, the position is
now draw!} 68. Qd8+ Ka4 69. Qa8+ Kb4 70. Qb7+ Ka4 $2 (70... Kc3 $11) 71. g7
Qc4+ $2 (71... Qxh2 {Also leads to a draw}) 72. Kf8 Qf4+ 73. Ke8 Qe5+ 74. Kd8
Qg5+ 75. Kc8 Qc5+ 76. Kb8 Qe5+ 77. Qc7 Qb5+ $2 (77... Qe6 $1) 78. Ka7 b2 79.
g8=Q b1=Q 80. Qcc4+ Q1b4 81. Qa2+ Qa3 82. Qgc4+ (82. Qg4+ {Although it is
absolutely not necessary to find a mate here, White actually had a very nice
one} Qbb4 83. Qd7+ Ka5 84. Qdd5+ Ka4 85. Qc6+ Qb5 86. Qac4+ Qab4 87. Q6xb5+ Ka3
88. Qbxb4#) 82... Qxc4 83. Qxc4+ Ka5 84. Qa6+ 1-0
