R+pp vs R+p

[Event "White wins"] [Site "?"] [Date "1978.??.??"] [Round "?"] [White "Villeneuve, A."] [Black "0400.21"] [Result "1-0"] [SetUp "1"] [FEN "5k2/7R/4p3/4P1K1/4rP2/8/8/8 w - - 0 1"] [PlyCount "13"] [EventDate "1978.??.??"] [SourceDate "2000.07.25"] 1. Ra7 $3 {[#]Neither of the two natural moves 1 Kf6? and 1 f5? are suitable. It is necessary therefore to put Black in "zugzwang", but not in any way.} (1. Kf6 $2 Rxf4+ $8 2. Kxe6 Rf1 $1 $11) (1. f5 $2 Rxe5 $1 2. Kf6 Rxf5+ $8 3. Kxe6 $11) (1. Rb7 $6 Ke8 $1 2. Kf6 $2 (2. Rg7 $1 Kf8 3. Ra7 $8 {: text}) 2... Rxf4+ $8 3. Kxe6 Kf8 $8 4. Rb8+ Kg7 5. Ra8 (5. Ke7 Ra4 $1) 5... Re4 $1 $11) 1... Ke8 (1... Kg8 2. Re7 $1) (1... Re1 2. Kf6 $8) (1... Rb4 2. f5 $3 {[#]} (2. Kf6 $2 Rxf4+ $8 3. Kxe6 Re4 $1 4. Ra8+ Kg7 5. Kd6 Kf7 $8 $11) 2... exf5 3. Kf6 $1 Rb8 4. e6 $1 f4 {(the central pawn wins when the black king is threatened with mate and this diversion is not enough)} 5. Rh7 $1 Kg8 6. Rg7+ Kh8 7. Rg1 $1 (7. e7 $1) 7... f3 (7... Rf8+ 8. Ke7 $1 Rf5 9. Kd6) 8. Kf7 $1 Rb7+ 9. e7 $18) 2. Kf6 $3 {[#]The good and the bad are exchanged, compared to 1...Rb4.} (2. f5 $2 Rxe5 $8 3. Kf6 Re1 $1 (3... Rxf5+ $2 4. Kxe6 $8 $18)) 2... Rxf4+ 3. Kxe6 $8 Kf8 (3... Kd8 4. Ra8+ $8 Kc7 5. Ke7 $8 Rh4 6. e6) 4. Ra8+ $8 Kg7 5. Ke7 $1 Rb4 (5... Rf7+ 6. Kd6 $8 Rb7 7. e6 $8) 6. e6 $8 Rb7+ 7. Kd6 $8 1-0