White to move!
The puzzle requires deep understanding of pawn endings. It also requires the ability of calculating a lot of moves ahead.In my opinion I considered the most interesting variations.
1.Kc2! Kd72.Kb3 Kc73.Kc3 Kd74.Kb4 Kc85.Kc4 Kb86.d5 Kc87.d6 Kd78.Kb5 Kd89.d7 Kc710.d8=Q+ Kxd811.Kc6 Ke712.Kc7 Kf813.Kd7 Kf714.Kd6 Ke815.Kxe6 Kd816.Kf7It's a win for white.
1.Kc2 Kd72.Kb3 Kc73.Kc3 Kd74.Kb4 Kc85.Kc4 Kb86.d5 exd57.Kxd5 Kc88.Ke6 Kd89.Kf7It's a win for white.
1.Kc2 Kd72.Kb3 Kc73.Kc3 Kd74.Kb4 Kc85.Kc4 Kb86.d5 Kc87.d6 Kd78.Kb5 Kd89.d7 Kxd710.Kb6 Ke811.Kc6 Ke712.Kc7 Kf813.Kd7 Kf714.Kd6 Ke815.Kxe6 Kd816.Kf7It's a win for white.
As I often write, though, to truly understand such a position requires one to understand why certain moves fail. With black threatening to bring his king to d5, the white king must stay within a move of protecting d4. So, Alena, if white plays either 1.Kc3 or 1.Kb3, how does black draw in each case?
Yancey, if black wants to get a draw the black king must have the opposition.This puzzle is about the importance to know the opposition.
1.Kc3 Kc72.Kc4 Kc63.Kb4 Kb64.d5 exd55.e6 Kc7It's a draw.
1.Kb3 Kb72.Ka3 Kc63.Kb4 Kb64.Ka4 Kc6It's a draw.