White to play and win

White to move Position after move 32 0 half-moves after last pawn advance or captureWhite to move Position after move 32 0 half-moves after last pawn advance or capture

 

White is able to win the game. Find the right moves.
If needed I’ll add the solution to the comments.
  1. 4 Responses to “White to play and win”

    1. 1. Rf1+ Kg8
      2. Rf8+ Kg7
      3. e8N#

      or
      1. … Kg7
      2. e8N+
      3. Rf8#

      Edited by admin at Januari 7th, 2011
      Replaced d8N+ by e8N+ (twice)

    2. Very good

      Black can delay the mate a little bit by
      1.Rf1+ Qf3 2.Rxf3+

      In the …Kg8 variation there is also an alternative for white
      2…Kg8 3.e8=Q+ Kg7 4.Rf7#

      But the main idea about this exercise is that you’ll see the e8N# possibility, so these are only details.

    3. Shouldn’t it end on e8N#? After the three move sequence.

      I’ve racked my brain over this, but I don’t see how one promotes on d when there is nothing to force the pawn diagonal.

    4. @ Robert Evans

      Of course you are right
      I have updated the comment at the top

      Thanks

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