[Comment "auto-generated from http://www.jesseo.com/chesspublishing/pgn.php?pgndata=[Event%20%26quot;Fischer%20Random%20Blitz%202018%26quot;]%0A[White%20%26quot;Nakamura,%20Hikaru%26quot;]%0A[Black%20%26quot;Carlsen,%20Magnus%26quot;]%0A[Site%20%26quot;Baerum%20NOR%26quot;]%0A[Annotator%20ReneDescartes%20using%20some%20of%20Seirawan%27s%20ideas]%0A[Round%20%26quot;3%26quot;]%0A[Result%20%26quot;1/2-1/2%26quot;]%0A[Date%20%26quot;2018.02.13%26quot;]%0A[PlyCount%20%26quot;273%26quot;]%0A[Setup%20%26quot;1%26quot;]%0A[FEN%20%26quot;nbbrqrkn/pppppppp/8/8/8/8/PPPPPPPP/NBBRQRKN%20w%20-%20-%200%202%26quot;]%0A%0A2.%20e4%EF%BF%BD%20c5%203.%20d4%20cxd4%204.%20Rxd4%20a6%205.%20Ng3%20Ba7%206.%20Rd3%20d6%207.%20b3%20Nc7%208.%20Bb2%20f6%209.%20c4%20%26%23123;The%20Martian%20Maroczy%20Bind.%26%23125;Ng6%2010.%20Nc2%20Nf4%2011.%20Rd2%20e5%2012.%20Ne3%20g6%2013.%20Ne2%20Nce6%2014.%20Nxf4%20Nxf4%2015.%20g3%20Ne6%2016.%20f4%20Nd4%2017.%20Kg2%20b5%2018.%20Nd5%20Qd7%2019.%20f5%20bxc4%EF%BF%BD%2020.%20bxc4%20g5%2021.%20h4%20g4%2022.%20Bxd4%20Bxd4%20%26%23123;The%20bishop%20that%20reloaded%20on%20d4%20is%20going%20to%20cost%20a%20rook.%20The%20Nd5%20is%20also%20big,%20but%20it%20can%20be%20exchanged%20easily.%26%23125;23.%20Qd1%20Qg7%2024.%20h5%EF%BF%BD%20Bb7%2025.%20h6%20%26%23123;Nakamura%20gives%20away%20a%20pawn%20to%20half-open%20the%20h-file.%26%23125;%20Qxh6%2026.%20Rh1%20Qg5%2027.%20Rh4%20h5%EF%BF%BD%20%26%23123;Meanwhile,%20his%20dark%20squares%20are%20about%20to%20be%20invaded--...Bxd5%20and%20...Qe3%20are%20in%20the%20air.%26%23125;28.%20Rxd4%20exd4%20%26%23123;So%20Magnus%20has%20his%20material%20advantage...%26%23125;%2029.%20Nf4$1%EF%BF%BD%20%26%23123;and%20Nakamura%20has%20his%20attack.%20How%20can%20Magnus%20avoid%20immediate%20disaster%20on%20the%20g-%20and%20h-%20files?%26%23125;%20Qxf5%20$1%EF%BF%BD%2030.%20Rxh5%20Bxe4+!%20%26%23123;By%20cashing%20in%20the%20queen.%26%23125;%2031.%20Kf2%EF%BF%BD%20Bxb1%2032.%20Rxf5%20Bxf5%EF%BF%BD%2033.%20Qxd4%20%26%23123;Yet%20the%20attack%20goes%20on.%20Nakamura%20now%20has%20a%20rampaging%20queen%20and%20knight,%20while%20Carlsen%27s%20rooks%20can%20hardly%20do%20more%20than%20block%20squares.%26%23125;Bc8%2034.%20Qd5+%20Kg7%2035.%20Qe4%20Rf7%2036.%20Qg6+%20Kf8%2037.%20Qd3%20Ke8%2038.%20Qd5%EF%BF%BD%20f5%2039.%20Qd4%20Re7%2040.%20Nd5%20%26%23123;Another%20monster%20knight.%20The%20attack%20looks%20very%20hard%20to%20defend%20against%20in%20the%20long%20run.%26%23125;%20Re5%2041.%20Qa7%EF%BF%BD%20Rxd5%2042.%20cxd5%EF%BF%BD%20Rd7%2043.%20Qb8%20Kd8%2044.%20Ke3%20Rc7%EF%BF%BD%2045.%20Kf4%EF%BF%BD%20%26%23123;Carlsen%20has%20given%20the%20material%20back,%20but%20the%20attack%20is%20still%20going;%20the%20king%20will%20come%20around%20to%20create%20severe%20mate%20threats,%20e.g.%20in%20conjunction%20with%20Qb2-h8,%20Kf6.%20Can%20Magnus%20evacuate%20in%20time?%26%23125;Rc4+%2046.%20Kg5%20Kd7%2047.%20Qa7+%20%26%23123;forcing%20Magnus%20to%20clog%20his%20own%20escape%20route.%26%23125;Rc7%2048.%20Qe3%20Rc5%2049.%20Kf6%EF%BF%BD%26%23123;This%20looks%20like%20a%20grim%20defensive%20task%26%23125;%20Kc7%2050.%20Qd3%20Bb7$3$2%20%26%23123;Carlsen%20will%20give%20up%20his%20kingside,%20after%20which%20the%20White%20g-pawn%20will%20cost%20him%20a%20piece;%20but%20then%20he%20will%20defend%20queen%20vs.%20rook%20and%20a-%20and%20d-pawns!!?%20Engines%20say%20Carlsen%20could%20survive%20by%20just%20allowing%20Black%20to%20penetrate,%20but%20that%27s%20in%20Naka%27s%20natural%20terrain,%20whereas%20the%20text%20is%20in%20Carlsen%27s.%26%23125;51.%20Qxf5%EF%BF%BD%20Bxd5%2052.%20Qxg4%20Bxa2%2053.%20Qa4%20Bc4%2054.%20g4%EF%BF%BD%20a5%2055.%20g5%20Bd3%2056.%20g6%20Rf5+%2057.%20Ke7%20Re5+%2058.%20Kf7%20Bxg6+%2059.%20Kxg6%EF%BF%BD%20Rc5%2060.%20Kf6%20Re5%2061.%20Qc4+%20Kd7%2062.%20Qg8%20Kc7%2063.%20Qa8%20Kb6%EF%BF%BD%2064.%20Qc8%20Kb5%2065.%20Qc7%20Rc5%2066.%20Qb7+%20Kc4%20%26%23123;%26quot;Ok,%20you%20can%20have%20my%20d-pawn,%20but%20I%20get%20to%20push%20the%20a-pawn%20farther%20up%20the%20board...%26quot;%26%23125;%2067.%20Ke6%20a4%2068.%20Kxd6%20Rb5%2069.%20Qe4+%20Kb3%2070.%20Qd3+%20Kb4%2071.%20Qd4+%20Ka3%2072.%20Kc6%20Rb3%2073.%20Kc5%EF%BF%BD%20Rb2%2074.%20Qe4%20Rb3%2075.%20Qd4%20Rb2%2076.%20Qe4%20Rb3%2077.%20Qc4%20Rb2%2078.%20Qd4%20%26%23123;am%20I%20in%20zugzwang?%26%23125;Rb1%20$3%20%26%23123;yes,%20now%20a%20series%20of%20forks%20to%20capture%20his%20rook...%26%23125;%2079.%20Qc3+%20Ka2%2080.%20Qc2+%20Ka3%20%26%23123;...leads%20only%20to%20stalemate!%26%23125;81.%20Qd2%20Rb2%2082.%20Qf4%20Rb1%2083.%20Qf6%20Ka2%EF%BF%BD%2084.%20Qe6+%20Rb3%2085.%20Kc4%20Ka3%EF%BF%BD%2086.%20Qe1%EF%BF%BD%20Ka2%2087.%20Qd2+%20Rb2%2088.%20Qd5%20a3%20%26%23123;now%20a%20tablebase%20draw,%20but%20how%20to%20hold%20it?%26%23125;%2089.%20Qd3%20Rb1%2090.%20Qd5%20Rb2%2091.%20Kc3+%20Ka1%2092.%20Qh1+%20Ka2%2093.%20Qd1%20Rb1%2094.%20Qd4%20Rb3+%2095.%20Kc4%20Rb1%2096.%20Qe4%20Rb3%2097.%20Qf5%20Rb2%2098.%20Kc3%20Rb3+%2099.%20Kc2%20Rb2+%20100.%20Kc1%20Ka1%20101.%20Qe5%20Ka2%20102.%20Qe4%20Ka1%20103.%20Qd3%20Ka2%20104.%20Qc4+%20Ka1%20105.%20Qc3%20Ka2%20106.%20Qd3%20$5%20%26%23123;The%20rook%20has%20to%20move,%20and%20a%20move%20along%20the%20rank%20is%20met%20by%20Qb1%20mate.%20Zugzwang?%26%23125;%20Rb8%20$1%20%26%23123;No--dark%20squares%20on%20the%20b-file%20are%20safe.%26%23125;%20107.%20Qf5%20(107.%20Qd5+%20Ka1%20%26%23123;;interposing%20the%20rook%20instead%20leads%20to%20Kc2%20and%20mate.%20But%20now%20if%20Qe5+,%20the%20rook%20does%20interpose%20on%20b2,%20guarded%20by%20the%20pawn.%20That%27s%20how%20the%20fortress%20works.%26%23125;)Rb2%20108.%20Qg6%20Ka1%20109.%20Qe6%20Rb1+%20110.%20Kc2%20Rb2+%20111.%20Kc3%20Kb1%20112.%20Qf7%20Ka1%EF%BF%BD%20113.%20Qa7%20Ka2%20114.%20Qa4%20Rb1%20115.%20Qe4%20Rb2%20116.%20Qe1%20Rb3+%20117.%20Kc4%20Rb2%20118.%20Qh1%20Rb3%20119.%20Qh8%20Rb2%20120.%20Qc3%20Rb1%20121.%20Qd3%20Rb2%20122.%20Qg6%20Rb3%20123.%20Qh7%20Rb2%20124.%20Kc3%20Rb3+%20125.%20Kc2%20Rb2+%20126.%20Kc1%20Ka1%20127.%20Qd3%20Ka2%20128.%20Qd5+%20Ka1%20129.%20Qe4%20Ka2%20130.%20Qd3%20Rb8%20131.%20Qd5+%20Ka1%20132.%20Qe5+%20Rb2%20133.%20Qc3%20Ka2%20134.%20Qc4+%20Ka1%20135.%20Qe4%20Ka2%20136.%20Qh7%20Ka1%20137.%20Qe4%20Ka2%20138.%20Qd3%20%26%23123;and%20Magnus%20claims%20threefold%20repetition%20in%20light%20of%20his%20intention%20to%20play%20139...Rb8.%26%23125;1/2-1/2%0A%0A"]
[Event "Fischer Random Blitz 2018"]
[White "Nakamura, Hikaru"]
[Black "Carlsen, Magnus"]
[Site "Baerum NOR"]
[Annotator ReneDescartes using some of Seirawan's ideas]
[Round "3"]
[Result "1/2-1/2"]
[Date "2018.02.13"]
[PlyCount "273"]
[Setup "1"]
[FEN "nbbrqrkn/pppppppp/8/8/8/8/PPPPPPPP/NBBRQRKN w - - 0 2"]

2. e4� c5 3. d4 cxd4 4. Rxd4 a6 5. Ng3 Ba7 6. Rd3 d6 7. b3 Nc7 8. Bb2 f6 9. c4 {The Martian Maroczy Bind.}Ng6 10. Nc2 Nf4 11. Rd2 e5 12. Ne3 g6 13. Ne2 Nce6 14. Nxf4 Nxf4 15. g3 Ne6 16. f4 Nd4 17. Kg2 b5 18. Nd5 Qd7 19. f5 bxc4� 20. bxc4 g5 21. h4 g4 22. Bxd4 Bxd4 {The bishop that reloaded on d4 is going to cost a rook. The Nd5 is also big, but it can be exchanged easily.}23. Qd1 Qg7 24. h5� Bb7 25. h6 {Nakamura gives away a pawn to half-open the h-file.} Qxh6 26. Rh1 Qg5 27. Rh4 h5� {Meanwhile, his dark squares are about to be invaded--...Bxd5 and ...Qe3 are in the air.}28. Rxd4 exd4 {So Magnus has his material advantage...} 29. Nf4$1� {and Nakamura has his attack. How can Magnus avoid immediate disaster on the g- and h- files?} Qxf5 $1� 30. Rxh5 Bxe4+! {By cashing in the queen.} 31. Kf2� Bxb1 32. Rxf5 Bxf5� 33. Qxd4 {Yet the attack goes on. Nakamura now has a rampaging queen and knight, while Carlsen's rooks can hardly do more than block squares.}Bc8 34. Qd5+ Kg7 35. Qe4 Rf7 36. Qg6+ Kf8 37. Qd3 Ke8 38. Qd5� f5 39. Qd4 Re7 40. Nd5 {Another monster knight. The attack looks very hard to defend against in the long run.} Re5 41. Qa7� Rxd5 42. cxd5� Rd7 43. Qb8 Kd8 44. Ke3 Rc7� 45. Kf4� {Carlsen has given the material back, but the attack is still going; the king will come around to create severe mate threats, e.g. in conjunction with Qb2-h8, Kf6. Can Magnus evacuate in time?}Rc4+ 46. Kg5 Kd7 47. Qa7+ {forcing Magnus to clog his own escape route.}Rc7 48. Qe3 Rc5 49. Kf6�{This looks like a grim defensive task} Kc7 50. Qd3 Bb7$3$2 {Carlsen will give up his kingside, after which the White g-pawn will cost him a piece; but then he will defend queen vs. rook and a- and d-pawns!!? Engines say Carlsen could survive by just allowing Black to penetrate, but that's in Naka's natural terrain, whereas the text is in Carlsen's.}51. Qxf5� Bxd5 52. Qxg4 Bxa2 53. Qa4 Bc4 54. g4� a5 55. g5 Bd3 56. g6 Rf5+ 57. Ke7 Re5+ 58. Kf7 Bxg6+ 59. Kxg6� Rc5 60. Kf6 Re5 61. Qc4+ Kd7 62. Qg8 Kc7 63. Qa8 Kb6� 64. Qc8 Kb5 65. Qc7 Rc5 66. Qb7+ Kc4 {"Ok, you can have my d-pawn, but I get to push the a-pawn farther up the board..."} 67. Ke6 a4 68. Kxd6 Rb5 69. Qe4+ Kb3 70. Qd3+ Kb4 71. Qd4+ Ka3 72. Kc6 Rb3 73. Kc5� Rb2 74. Qe4 Rb3 75. Qd4 Rb2 76. Qe4 Rb3 77. Qc4 Rb2 78. Qd4 {am I in zugzwang?}Rb1 $3 {yes, now a series of forks to capture his rook...} 79. Qc3+ Ka2 80. Qc2+ Ka3 {...leads only to stalemate!}81. Qd2 Rb2 82. Qf4 Rb1 83. Qf6 Ka2� 84. Qe6+ Rb3 85. Kc4 Ka3� 86. Qe1� Ka2 87. Qd2+ Rb2 88. Qd5 a3 {now a tablebase draw, but how to hold it?} 89. Qd3 Rb1 90. Qd5 Rb2 91. Kc3+ Ka1 92. Qh1+ Ka2 93. Qd1 Rb1 94. Qd4 Rb3+ 95. Kc4 Rb1 96. Qe4 Rb3 97. Qf5 Rb2 98. Kc3 Rb3+ 99. Kc2 Rb2+ 100. Kc1 Ka1 101. Qe5 Ka2 102. Qe4 Ka1 103. Qd3 Ka2 104. Qc4+ Ka1 105. Qc3 Ka2 106. Qd3 $5 {The rook has to move, and a move along the rank is met by Qb1 mate. Zugzwang?} Rb8 $1 {No--dark squares on the b-file are safe.} 107. Qf5 (107. Qd5+ Ka1 {;interposing the rook instead leads to Kc2 and mate. But now if Qe5+, the rook does interpose on b2, guarded by the pawn. That's how the fortress works.})Rb2 108. Qg6 Ka1 109. Qe6 Rb1+ 110. Kc2 Rb2+ 111. Kc3 Kb1 112. Qf7 Ka1� 113. Qa7 Ka2 114. Qa4 Rb1 115. Qe4 Rb2 116. Qe1 Rb3+ 117. Kc4 Rb2 118. Qh1 Rb3 119. Qh8 Rb2 120. Qc3 Rb1 121. Qd3 Rb2 122. Qg6 Rb3 123. Qh7 Rb2 124. Kc3 Rb3+ 125. Kc2 Rb2+ 126. Kc1 Ka1 127. Qd3 Ka2 128. Qd5+ Ka1 129. Qe4 Ka2 130. Qd3 Rb8 131. Qd5+ Ka1 132. Qe5+ Rb2 133. Qc3 Ka2 134. Qc4+ Ka1 135. Qe4 Ka2 136. Qh7 Ka1 137. Qe4 Ka2 138. Qd3 {and Magnus claims threefold repetition in light of his intention to play 139...Rb8.}1/2-1/2