g15713: White should have been able to draw this position E. 1
White to move. Last: 47...Kf6
 click for larger viewFinalGen gives three moves 48.Ra6+ or Ra8 or Rc7 that may draw
"Black wins or Draw"
Stockfish gives the following 60-minute analysis: 1) =0.00 (65 ply) 48.Ra6+ Kg7 49.Ra5 Kg6 50.Ra6+ Kh5 51.Ra5 g3 52.Rxf5+ Kg4 53.Ke4 g2 54.Rg5+ Kh3 55.Rg8 Kh2 56.f5 Rg3 57.Rh8+ Rh3 58.Rg8 g1=Q 59.Rxg1 Kxg1 2) -0.76 (65 ply) 48.Rc7 g3 49.Rc6+ Kg7 50.Rc1 Kg6 51.Rh1 Rf3 52.Rh8 Rxf4+ 53.Ke3 Ra4 54.Kf3 f4 55.Re8 Kg5 56.Rg8+ Kf5 57.Rf8+ Ke6 58.Re8+ Kd7 59.Rg8 Ke7 60.Rg4 Rc4 61.Rg8 Kf7 62.Rb8 Ra4 63.Rc8 Rd4 64.Rb8 Kf6 65.Rf8+ Ke6 66.Re8+ Kd7 67.Rf8 Kc6 68.Re8 Kb5 69.Rc8 Ka4 70.Rc3 Ka5 71.Rc2 Kb6 72.Rc8 Ra4 73.Rf8 Rc4 74.Rf5 Kc6 75.Rg5 Ra4 76.Rg6+ Kd5 77.Rg5+ Ke6 78.Rg8 Rc4 79.Re8+ Kd5 80.Rd8+ Kc6 81.Re8 Kc5 82.Re5+ Kd6 83.Re8 Rc1 84.Re2 Rf1+ 85.Kg2 Rd1 86.Kf3 3) -0.76 (64 ply) 48.Ra8 g3 49.Rf8+ Ke6 50.Rh8 Rf3 51.Rh6+ Kf7 52.Rh7+ Kf8 53.Rh8+ Kg7 54.Rh5 Kg6 55.Rh8 Rxf4+ 56.Ke3 Ra4 57.Kf3 f4 58.Re8 Kg5 59.Rg8+ Kf5 60.Rf8+ Ke6 61.Re8+ Kd7 62.Rg8 Ke7 63.Rg4 Rc4 64.Rg8 Kf7 65.Rb8 Ra4 66.Rc8 Rd4 67.Rb8 Kf6 68.Rf8+ Ke6 69.Re8+ Kd7 70.Rf8 Kc6 71.Re8 Kb5 72.Rc8 Ka4 73.Rc3 Ka5 74.Rc2 Kb6 75.Rc8 Ra4 76.Rb8+ Kc7 77.Rf8 Rd4 78.Re8 Kc6 79.Rg8 Kd5 80.Rg5+ Ke6 81.Rg8 Kf5 82.Rf8+ Kg5 83.Rg8+ Kh5 84.Rh8+ Kg6 85.Rc8 Kg7 86.Re8 Ra4 87.Rc8 Kf7 88.Rc6 Line (1) is a clear-cut draw
Game continuation went:
48.Ra6+ Kf7 49.a4 g3 50.Rc6 Rf3 51.Rc1 Kg6 52.Ra1 Rxf4+ E. 1.1
White to move. Check. Last: 52...Rxf4+
 click for larger viewNow 53.Ke3! is the only move to draw
Stockfish gives:
1) =0.00 (37 ply) 53.Ke3 Kg5 54.a5 Kg4 55.a6 Re4+ 56.Kd3 Re8 57.a7 Ra8 58.Ke2 f4 59.Ra4 Kh3 60.Kf3 g2 61.Ra1 Kh2 62.Ra2 Kh1 63.Rxg2 Rxa7 Note: In above last line not 62...Rxa7?? 63.Rxa7 g1=Q 64.Rh7 checkmate! Instead White loss with 53.Kd3?
Game continuation went:
53.Kd3 Rf3+ 54.Kd4 Kg5 55.a5 Kg4 56.a6 g2 57.a7 Rf1 58.Rxf1 gxf1=Q 59.a8=Q E. 1.2
Black to move. Last: 59.a8=Q
 click for larger view59...Qf4+ Black wins in 46 moves - Shredder |