White is able to win the game. Find the right moves.
If needed I’ll add the solution to the comments.

4 Responses to “White to play and win”

1. 
   JoeD
   December 9th, 2010 at 4:55 pm
   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. 
   Chess Teacher
   December 10th, 2010 at 5:17 pm
   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. 
   Robert Evans
   January 6th, 2011 at 11:05 pm
   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. 
   Chess Teacher
   January 7th, 2011 at 7:39 am
   @ Robert Evans
   Of course you are right
   I have updated the comment at the top
   Thanks