[Event "WCh"]
[Site "Mexico City MEX"]
[Date "2007.09.15"]
[Round "3"]
[White "Morozevich, A."]
[Black "Svidler, P."]
[Result "1-0"]
[ECO "C45"]
[WhiteElo "2758"]
[BlackElo "2735"]
[PlyCount "73"]
[EventDate "2007.09.13"]

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Bc5 5. Be3 Qf6 6. c3 Nge7 7. Bc4 O-O 8.
O-O Ne5 9. Bb3 d6 10. f3 Be6 11. Kh1 Bc4 12. Rf2 d5 13. Bc2 dxe4 14. Nd2 Bd3
15. Nxe4 Bxe4 16. fxe4 Qg6 17. Rf4 Nc4 18. Bg1 Qh6 19. Rf3 Qd2 20. Qb1 Bb6 21.
Bb3 Bxd4 22. cxd4 Na5 23. Bc2 Rad8 24. Rc3 Nac6 25. d5 Nb4 26. Bb3 Na6 27. Be3
Qe2 28. Bc4 Qg4 29. h3 Qh4 30. Bxa6 bxa6 31. Rxc7 f5 32. Bc5 Rfe8 33. d6 Ng6
34. exf5 Nf4 35. Qc2 Re2 36. Qb3+ Kh8 37. Rg1 1-0

[Event "WCh"]
[Site "Mexico City MEX"]
[Date "2007.09.15"]
[Round "3"]
[White "Anand, V."]
[Black "Kramnik, V."]
[Result "1/2-1/2"]
[ECO "C42"]
[WhiteElo "2792"]
[BlackElo "2769"]
[PlyCount "130"]
[EventDate "2007.09.13"]

1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d4 d5 6. Bd3 Nc6 7. O-O Be7 8. c4
Nb4 9. Be2 O-O 10. Nc3 Bf5 11. a3 Nxc3 12. bxc3 Nc6 13. Re1 Re8 14. cxd5 Qxd5
15. Bf4 Rac8 16. Qa4 Bd7 17. Qc2 Qf5 18. Qxf5 Bxf5 19. Bb5 Bd7 20. d5 Ne5 21.
Bxd7 Nxd7 22. Bxc7 Rxc7 23. d6 Rxc3 24. dxe7 f6 25. Rad1 Rc7 26. Nd4 Ne5 27. f4
Nc6 28. Nxc6 bxc6 29. Rd6 c5 30. Ree6 c4 31. Rc6 Rexe7 32. Rxc4 Rxc4 33. Rxe7
Ra4 34. Rb7 h6 35. f5 Rxa3 36. Kf2 h5 37. g3 a5 38. Ra7 a4 39. h4 Ra2+ 40. Kf3
a3 41. Ke3 Ra1 42. Kf2 Kf8 43. Kg2 a2 44. Kh2 Ke8 45. Kg2 Kd8 46. Kh2 Kc8 47.
Kg2 Kb8 48. Ra3 Kb7 49. Ra4 Kb6 50. Ra8 Kc5 51. Ra7 Kd5 52. Ra4 Ke5 53. Ra5+
Ke4 54. Kh2 Kf3 55. Ra3+ Kf2 56. Ra4 Kf1 57. Kh1 Ke1 58. Kg2 Kd1 59. Ra7 Rc1
60. Rxa2 Rc2+ 61. Rxc2 Kxc2 62. Kf3 Kd3 63. g4 hxg4+ 64. Kxg4 Ke4 65. Kh5 Kxf5
1/2-1/2

[Event "WCh"]
[Site "Mexico City MEX"]
[Date "2007.09.15"]
[Round "3"]
[White "Grischuk, A."]
[Black "Aronian, L."]
[Result "1/2-1/2"]
[ECO "C88"]
[WhiteElo "2726"]
[BlackElo "2750"]
[PlyCount "61"]
[EventDate "2007.09.13"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 O-O 8. h3
Bb7 9. d3 d5 10. exd5 Nxd5 11. c3 Bf6 12. Nbd2 Nf4 13. Ne4 Nxd3 14. Nxf6+ gxf6
15. Re4 Nxc1 16. Rg4+ Kh8 17. Qxc1 Ne7 18. Bc2 Rg8 19. Qh6 Ng6 20. Nh4 Qf8 21.
Qh5 Qe8 22. Re1 Rd8 23. Bf5 Bc8 24. Bxc8 Rxc8 25. Nf5 Qd7 26. Ree4 Rcd8 27. Kh2
Qd1 28. Nh6 Rg7 29. Nf5 Rgg8 30. Nh6 Rg7 31. Nf5 1/2-1/2

[Event "WCh"]
[Site "Mexico City MEX"]
[Date "2007.09.15"]
[Round "3"]
[White "Leko, P."]
[Black "Gelfand, B."]
[Result "1/2-1/2"]
[ECO "C42"]
[WhiteElo "2751"]
[BlackElo "2733"]
[PlyCount "200"]
[EventDate "2007.09.13"]

1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. Nc3 Nxc3 6. dxc3 Be7 7. Be3 Nd7
8. Qd2 Ne5 9. O-O-O O-O 10. h3 Nxf3 11. gxf3 Bf5 12. h4 Re8 13. h5 Bf6 14. Rg1
Qe7 15. Kb1 d5 16. Bd3 Bxd3 17. Qxd3 Rad8 18. Rg4 Kh8 19. a3 b6 20. Rdg1 h6 21.
Qd2 Kh7 22. Bd4 Rg8 23. Re1 Qd6 24. Bxf6 gxf6 25. Qd3+ Kh8 26. Qa6 Rxg4 27.
fxg4 Qc6 28. Re7 Qd6 29. Re3 Qc6 30. Qd3 Kg7 31. Re7 Kf8 32. Re1 Kg7 33. f4 Qd6
34. Qf3 c5 35. Qf2 d4 36. Rd1 Qe6 37. Re1 Qd5 38. Rd1 Qe6 39. Qg1 Qe4 40. g5
fxg5 41. fxg5 d3 42. cxd3 Rxd3 43. Rxd3 Qxd3+ 44. Ka1 Qf5 45. g6 fxg6 46. hxg6
h5 47. Qg3 Qf1+ 48. Ka2 Qc4+ 49. Ka1 Qf1+ 50. Ka2 Qc4+ 51. Ka1 Qg4 52. Qc7+
Kxg6 53. Qxa7 Qd1+ 54. Ka2 Qd5+ 55. Ka1 Qd1+ 56. Ka2 Qd6 57. Qa8 Qe6+ 58. Ka1
Qe1+ 59. Ka2 Qe6+ 60. Ka1 h4 61. Qg2+ Kh5 62. Qf3+ Kg5 63. Qg2+ Kh5 64. Qf3+
Kg5 65. Qg2+ Qg4 66. Qd2+ Kf5 67. Qd5+ Kf4 68. Qd6+ Kf3 69. Qf6+ Kg2 70. Qc6+
Qf3 (70... Kg1 {
Susan on her blog.  Yes, this is a much better try than 70...Qf3.} 71. Qxb6
Qd1+ 72. Ka2 Qd5+ 73. Ka1 {Better than Susan's 73.Kb1 "on principle"---but
makes White's next an only-move, and also see the line with BQ on c4 giving
check where Ka1 loses and Kb1 holds!} (73. Kb1 h3 74. Qh6 (74. Qg6+ {
This also holds, and mainly transposes.} Qg2 75. Qd6 Qe4+ (75... h2 76. Qxc5+
$8 $11 {Transposes into an elsewhere-seen line; this is important.}) 76. Ka2
Qc4+ {
Because White has Qg3+ with an instant draw, either King retreat draws here.}
77. Ka1 Qf1+ 78. Ka2 Qf7+ 79. Kb1 Kg2 80. Qd2+ Qf2 81. Qd5+ Kg1 82. Ka2 $1 $11
{With Black's pawn back on h3, White has time to do this.}) 74... Qd3+ 75. Ka2
$8 Qc4+ 76. Kb1 (76. Ka1 h2 {The fact that this wins *is* interesting---it
means White must actively play to 'cocoon" his King, as in the game.} 77. Qe3+
(77. Qg5+ Kf2 78. Qd2+ Qe2 79. Qf4+ Kg2 80. Qg5+ Kf1 81. Qd5 Qg2 82. Qd1+ Kf2
83. Qd2+ Kg1 84. Qe3+ Qf2 85. Qg5+ Kf1 86. Qd5 Qg1 $19) 77... Kg2 78. Qd2+ Kh3
79. Qh6+ Qh4 80. Qe6+ Qg4 81. Qh6+ Kg2 82. Qd2+ Kg3 83. Qe3+ Qf3 84. Qg5+ Kf2
85. Qd2+ Kg1 86. Qg5+ Qg2 $8 87. Qxc5+ (87. Qe3+ Qf2 88. Qg5+ Kf1) 87... Kf1
88. Qb5+ Ke1 89. Qe5+ Kd2 90. Qf4+ Kc2 {This is another point.} 91. Qf5+ Kc1
92. Qf4+ Qd2 93. Qe4 Qxb2# {Oh, that's effective too!}) 76... h2 77. Qe3+ Kg2
78. Qd2+ (78. Qg5+ Kf2 79. Qf5+ Ke1 80. Qh7 Qe2 81. Ka2 Kd2 82. Qh6+ Kc2 83.
Qg6+ Kc1 84. Qb1+ Kd2 85. Qh1 Qc4+ 86. Kb1 Qh4 $19) 78... Kh3 79. Qh6+ Kg3 (
79... Qh4 80. Qe6+ $8 Qg4 81. Qh6+ Kg3 82. Qe3+ Qf3 83. Qg5+ $8 Kf2 {
This position is said to be winning with WK on a1.   Why?} 84. Qd2+ Kg1 85.
Qg5+ $8 Qg2 (85... Kf1 86. Qc1+ $8) 86. Qxc5+ (86. Qe3+ Qf2 87. Qg5+ $8 Kf1 $19
) 86... Qf2 87. Qg5+ Kf1 88. Qb5+ $8 Ke1 89. Qe5+ Qe2 90. Qg3+ Kd1 91. Qd6+ $8
Qd2 92. Qc6 $8 Qe1 93. Qg2 $8 {This is the point!  It threatens mate!} Qh4 94.
Qd5+ $11 {Another point is that Black cannot play 94...Kc1 95 Qh1+ Kd2 96.
Qg2+? (Qd5+) Ke1! -+, a position seen from otehr lines.}) 80. Qg5+ Kf2 81. Qf5+
Ke1 82. Qh7 Qe2 83. Qh4+ Qf2 84. Qe4+ Kf1 85. Ka2 {
This should be a draw, as White is ready to play c4.}) 73... h3 {Now, forebodin
gly, the natural 74.Qg6+ appears to lose to 74...Qg2!  And 74.c4!? appears to
lose not because Black can take the pawn, but because WK is still on the back
rank.} 74. Qh6 $1 {Only move} (74. c4 Qg5 $1 {Rybka +- at depth 20} 75. Qb3 h2
76. Qd1+ $8 {This is dangerous for White with the King still on the back rank,
but the less-central position of Black's Queen appears to make it survivable.}
Kg2 (76... Kf2 77. Ka2 $1 {and Hakuna Matata no worries for White!}) 77. Qe2+
Kh3 78. Qf3+ Qg3 79. Qh5+ Kg2 $19) (74. Qg6+ Qg2 $19 {No checks (Qb1+ Qf1 pin),
so White can't stop ...h2, and with WK on a1 (not even b1), this is the
pattern we've seen that loses for White.}) 74... h2 (74... Qg2 75. Qe3+ Kf1 76.
Ka2 (76. c4 h2 $19 {transposing into another c4 line.  White can't be cavalier.
} 77. Qc1+ Kf2 78. Qd2+ Kg1 79. Qe3+ Qf2 80. Qg5+ Kf1 81. Qd5 Qg1 $19) 76...
Qd5+ (76... Qg8+ 77. Ka1 h2 78. Qf3+ Kg1 79. Qd1+ Kg2 80. Qe2+ Kh1 {Now White m
ust resist the temptation to give check.  Noteworthy also is that c4 loses. 
The first priority is to get WK off the back roiw.} 81. Qe5 Qg2 82. Ka2 $1 {
Gets the WK off the first rank.  Kb1 draws too, but only for the "miracle
save" reason where Black cannot make a second Queen because the K on b1
supports Qc2 mate.} Qf3 83. c4 {Now this is fine, with WK off the back row.} (
83. Qxc5 {Rybka says White can munch this pawn}) 83... Kg2 84. Qg5+ Kf1 85.
Qc1+ Kf2 86. Qd2+ Qe2 87. Qd5 {
White can also give perpetual, but this underscores the situation.} Qe3 88. Qh5
$11) 77. Ka1 h2 78. Qf4+ $8 Kg2 79. Qg4+ Kh1 80. Qf4 {
This is OK for White---we see it in other lines.}) 75. Qe3+ Kf1 76. Qf4+ Kg2
77. Qg4+ {For this reason, Black needs to control the 4th rank, as in lines
with BQ on c4.} Kh1 78. Qf4 {The most centrally commanding square for White's
Queen.  Now Rybka 2.3.2a mp32 wants to answer 78...Qg8 by 79.a4 at depth 27(!),
but must White be so committal?} (78. c4 $2 {That this loses is also
foreboding...  The problem is that WK needs to be on a2 to complete the cocoon.
} Qg2 $1 79. Qh5 (79. Qf4 {Well, this is strange.  DF10 thought White was
losing, but at depth 19 has changed to "=".  Either DF misevaluated a
"quiesced" position where Black queens, but a little further search finds a
mate for White (like in the other line with WK on b1 and Qc2 mate), or a hash
collision was responsible---the latter is why one needs to check with another
engine.} Kg1 80. Qe3+ Qf2 81. Qg5+ Kf1 {Whith White's c-pawn on c3 this was
losing---and DF10 now sees it as a loss again at depth 19.} 82. Qh5 Qg1 83.
Qf3+ Ke1 $19) 79... Kg1 80. Qxc5+ Qf2 81. Qg5+ Kf1 $19 {The c-pawn blocks
check on b5, though that did not save White either in the other line with WK
on a1 not b1.}) 78... Qg8 (78... Qd3) 79. c4 {
This is thematic and should be safe here.} Qg1+ 80. Ka2 Kg2 81. Qg4+ {
This should be a draw---else the whole ending is lost for White...Rybka depth
26 finds nothing.}) 71. Qg6+ Kf1 72. Qxb6 h3 73. Qd6 Qf2 74. Qd3+ Kg2 75. Qd5+
Kg1 76. Ka2 Qf4 77. Qxc5+ Kf1 78. Qb5+ Ke1 79. Qd5 h2 80. c4 Qh4 81. Qe5+ Kd1
82. Qd5+ Ke2 83. Qe5+ Kd1 84. Qd5+ Kc1 85. Qh1+ Kd2 86. Qd5+ Ke3 87. Qe5+ Kf3
88. Qf5+ Qf4 89. Qd3+ Kf2 90. Qd5 Kg1 91. Qg8+ Kf2 92. Qd5 Qf3 93. Qd2+ Kg1 94.
Qg5+ Kf1 95. Qc1+ Kf2 96. Qd2+ Kg3 97. Qg5+ Kh3 98. Qh6+ Kg3 99. Qg5+ Qg4 100.
Qd5 Qf3 1/2-1/2