[Event "K+R vs K+R+P"] [Site "www.masterchessopen.com"] [Date "1967.01.01"] [Round "0"] [White "Smyslov"] [Black "Donner"] [Result "0-1"] [EventType "game"] [EventCountry "ESP"] [FEN "8/8/8/4k3/6R1/p7/7K/r7 b - - 0 1"] { The typical method for a win in this case, is shown in Diagram #133. } 1...Ra2+! { If 1...Rb1, then White has the save 2.Ra4! Rb2+ 3.Kg3 a2 4.Kf3. In such cases, the decisive factor is: which king will first reach the area close to the pawn and establish the respective winning or drawing pattern? Here it is White's king: 4...Kd5 5.Ke3 Kc5 6.Kd3 Kb5 7.Ra8 Kb4 8.Rb8+, etc. An interesting trap is 4...Rh2 5.Ke3? Rh3+ 6.Kd2 Rh1! 7.Rxa2 Rh2+ and Black wins, but White has at his disposal 5.Kg3! (instead of 5.Ke3?), and at every retreat of Black's rook, again 6.Kf3!=. } (1...Rb1 2.Ra4 Rb2+ 3.Kg3 a2 4.Kf3 Kd5 (4...Rh2 5.Ke3? (5.Kg3! Re2 6.Kf3 $11) 5...Rh3+ 6.Kd2 Rh1! 7.Rxa2 Rh2+ $19) 5.Ke3 Kc5 6.Kd3 Kb5 7.Ra8 Kb4 8.Rb8+) 2.Kh3 { Immediately losing is 2.Kg1? Rb2 followed by 3.a2 and 4.Rb1+, or 2.Kg3 Kd5! 3.Ra4 Kc5! 4. Ra8 Ra1, followed by ...Ka2 and ...Rb1 -+. } (2.Kg1? Rb2 $19) (2.Kg3 Kd5 3.Ra4 Kc5 4.Ra8 Ra1 $19) 2...Rb2! { Using the tempo, prior to the pawn being attacked. A mistake is still possible by 2...Kd5? 3.Rg3!=. } (2...Kd5? 3.Rg3 $11) 3.Ra4 a2 4.Kg3 Kd5 5.Kf3 Kc5 6.Ke3 Kb5 7.Ra8 Kc4 0-1