[Event "Round 5 | GM A: Siddharth Jagadeesh - D"] [Site "lichess.org"] [Date "2022.11.20"] [White "Siddharth Jagadeesh"] [Black "Denys Shmelov"] [Result "0-1"] [Annotator "https://lichess.org/@/loepare"] [Variant "From Position"] [ECO "?"] [Opening "?"] [FEN "8/1r2kppp/8/2R2PP1/7P/P7/4r3/3R3K w - - 0 39"] [SetUp "1"] [Source "https://lichess.org/study/C2ZJaUwu/mSTZzhkb"] [Orientation "white"] { [%evp 0,80,38,35,35,0,0,-16,-18,-15,-14,-13,-17,-77,-63,-42,-30,-38,-55,-29, -64,-71,-62,-70,-65,-61,-61,-63,-15,-20,-21,-20,-11,-101,-69,-72,-75,-182,-222, -289,-231,-289,-291,-317,-305,-305,-304,-305,-307,-310,-307,-369,-369,-327, -247,-327,-555,-537,-610,-962,-992,-1250,-658,-1857,-1032,-29993,-29974,-29975, -29976,-29981,-29976,-29979,-29980,-29985,-29970,-29971,-29972,-29973,-29974, -29975,-1873,-29977,-29978] } 39. Rc6 f6 { A good move to start as Black needs to prevent White from playing f5-f6. } 40. Ra1 Rbb2 41. Re6+ { White forces the exchange of rooks, banking on the strength of the outside passed pawn. } 41... Rxe6 42. fxe6 fxg5 { A good practical move keeping the h- and g- pawns intact. } 43. hxg5 Kxe6 44. g6 h6! (44... hxg6 { This capture would limit Black's winning potential. }) 45. Rf1 { [%cal Rf1f7] } 45... Rb5! { [%csl Rg5,Rg6,Rh5][%cal Rb5a5,Rb5h5,Rg5g6] } 46. Rf3 Rg5 47. a4 Rxg6 48. a5 Ke7 49. Rf5?? { This is the game-losing move. } (49. Rb3 Ra6 50. Rb7+ Kf8 51. Rb5 { White has an interesting blockade. The king can never set foot on g6 or f6 as it will force the trade of rooks. } { [%csl Gf6,Gg6][%cal Ra5h5,Gf8f6,Rb5b6,Ra5b6,Rb6b8] } 51... Ra8 52. Kg2 Kf7 53. Kh3 Ra7 54. Kg4 { White is improving, Black is not. }) 49... Rd6 (49... Rg3 50. Rb5 Ra3 { Black has the win as the king will march with the g- and h- pawns. }) 50. Kg2 Ke6 51. Rb5?? (51. Rf2 { The rooks belong behind passers! } 51... Ra6 52. Ra2 Kf5 53. Kf3 g5 54. Kg3 h5 55. Kf3 g4+ 56. Kg3 Kg5 57. Ra1 h4+ 58. Kg2 Kf4 59. Ra4+ { Black can now make no meaningful progress. }) 51... Rd5 52. Rb7 Kf6 53. a6 Ra5 { With the rook behind the passed pawn White will not be able to make progress with the passer. } { [%cal Ra5a8] } 54. Ra7 Ra3 55. Ra8 h5 56. a7 Kg5 57. Kh2 (57. Rg8 Rxa7 { This defends the base pawn, and Black now has a free hand to improve. } { [%cal Ra7g7] }) 57... Kg4 58. Kg2 Ra2+ { The rest is a matter of technique. } 59. Kg1 h4 60. Rf8 Rxa7 61. Rf2 Ra1+ 62. Kh2 g5 63. Rg2+ Kh5 64. Rb2 Ra3 65. Kg2 h3+ { The best way to make progress, leaving hiding squares for the king. } 66. Kh2 Kh4 67. Rb1 Ra2+ 68. Kh1 g4 69. Rc1 g3 70. Kg1 Re2 { I like Black's technique, no risk of any stalemate tricks. } (70... h2+ { Black may have worried something was missed in this line. } 71. Kh1 Kh3 72. Rc2 Ra1+ 73. Rc1 Rxc1#) 71. Rc4+ Kg5 72. Rc5+ Kf4 73. Rc4+ Kf3 74. Rc1 Rd2 75. Rc3+ Kf4 76. Rc1 Ke3 77. Re1+ Kd3 78. Kh1 Kc2 { Black will force the trade of rooks and win the king and pawn ending. } { [%cal Rd2d1,Rd1h1] } 0-1