ChessVibes Weekly Endgame Study (175)

[kingliveson]

Weekly Endgame Study (175)

8/8/8/8/5K2/1r6/k2P3P/8 w - - 0 1

Can you solve it without computer assistance?

[kingliveson]

Solution:

1. d3!
1. h4? Rh3 2. Kg5 Kb3 3. h5 Kc4 4. h6 Kd5 5. Kg6 5. d4 Ke6 6. d5+ Kf7 5... Ke6 6. Kg7 Ke7 7. h7 Rg3+ 8. Kh8 8. Kh6 Kf7 9. h8=N+ Kf6 8... Kf7 9. d4 Re3 10. d5 Re8# 1. d4? Rh3 2. d5 Kb3 3. d6 Kc4 1. Kg4? Rb1! 2. h4 Kb3 3. h5 Kc4 4. h6 Kd5
1... Rxd3
1... Rb1 2. h4! Kb3 3. h5 Rh1 4. Kg5 1... Rb4+ 2. Kg5 2. d4? Kb3 3. h4 Kc4 4. h5 Kd5 1... Rb5 2. h4 Kb3 3. Kg4 Kc3 4. h5 Kd4 5. h6 Ke5 6. h7 Rb8 7. Kg5 Ke6 8. Kg6
2. h4
2. Kg4? Kb3
2... Kb3
2... Rh3 3. Kg4
3. h5
3. Kg4? Kc4
3... Kc4
3... Rh3 4. Kg4
4. h6
4. Kf5 or 4... Kd5 5. h6!
4... Kd5 5. Kf5!
5. Kg5? Ke6! 6. Kg6 Rg3+ 7. Kh7 Kf7
5... Rh3
5... Rf3+ 6. Kg6 Ke6 7. Kg7!
6. Kg6 Ke6 7. Kg7!
7. h7? Rg3+
7... Rg3+ 8. Kf8! Rh3 9. Kg7 Ke7 10. h7 Rg3+ 11. Kh8 Kf7 1/2-1/2