[Event "U.S. Senior Chess Championship 2023"]
[Site "St Louis"]
[Date "2023.07.14"]
[Round "1"]
[White "Gurevich, Dmitry"]
[Black "Novikov, Igor"]
[Result "1/2-1/2"]
[WhiteElo "2364"]
[BlackElo "2589"]
[Variant "From Position"]
[ECO "?"]
[Opening "?"]
[Annotator "https://lichess.org/@/ChessLifeOnline"]
[FEN "r7/5pk1/2RRp3/p2n4/Pp2K1P1/1P6/8/8 w - - 0 50"]
[SetUp "1"]
[Source "https://lichess.org/study/ZBuAQUT7/IBrBqNJS"]
[Orientation "white"]
{ Annotations by JJ Lang }
50. g5?! { The first inaccuracy. It turns out that Black's knight was
not dangerous coming to f6, as White would reach a winning position after
trading the a-pawn for the g-pawn and then kicking Black's rook off the best
file. } (50. Ra6! Rc8 51. Ra7 Nf6+ 52. Kd4 Kg6 (52... Nxg4 53. Rxe6 $18) 53. Rxa5 Rc3 (53... Nxg4 54. Rc5 $18) 54. Rb5 Rxb3 55. a5 $18) 50... Rh8 51. Rd7 Rh3 52. Kd4 Rxb3 53. Rxe6 Rf3 54. Ra6 Nc3 55. Rxa5? { This is the actual
losing move. Again, you may see this position again in the future, so I will
not work out all the specifics. Suffice it to say, White must be incredibly
precise to win even after finding the right first move. } (55. g6!! Nxa4 56. Rxa5! Nb6 (56... Kxg6 57. Rxa4 $18) (56... Nc3 57. Rg5! $18) 57. Rb7!) 55... b3 56. Rb7 Nxa4 57. Ke4 Rh3 58. Kf5 Nb2 59. Kg4 Rh1 60. Rf5 Rg1+ 61. Kh5 Rh1+ 62. Kg4 Rg1+ 63. Kh3 Kg6 64. Rbxf7 Nd3 65. R7f6+ Kg7 66. Rb6 b2 67. Rfb5 Nf4+ 68. Kh4 Ng6+ 69. Kh5 Nf4+ 70. Kh4 Ng6+ 71. Kh3 Nf4+ 72. Kh2 Rg2+ 73. Kh1 Re2 74. Kg1 Ne6 75. Kf1 Rh2 76. Rxb2 Rxb2 77. Rxb2 Nxg5 78. Rg2 Kf6 79. Rxg5 Kxg5 { 1/2-1/2 The game is a draw. } 1/2-1/2