Daily Chess Improvement: Special Endgame Improvement!

R & N vs R endgame is usually a draw

White to move! How should white proceed?

Comments
No. 1-1
DaveCubby
DaveCubby
  1. Kb3!

a) 1...Rh3+, 2. Nc3 Rh2, 3. Rf1#

b) 1...Rb1+, 2. Ka3 Rb8, 3. Rf1+ Rb1, 4. Nc1!! Rb2, 5. Nb3# (double check and mate)

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