6. R-h1 #

Construct a game ending with R to h1 mate.

1.Nf3 f6 2.h4 Kf7 3.Rg1 Kg6 4.Ne5 + Kh5 5.d3(d4) Kxh4 6.Rh1 #

However the order of the moves may be altered 🙂

Oops, sorry ilywrin.
I meant 5. R h1 #

Now it's getting though 🙂

And a bit misleading 🙂 Since White cannot do this in 5 moves the only possibility would be:
1.Nf(h3) h6!! 2.Ng5 hg 3. g3(g4) Rxh2 4.Bh3 Rxh3 5. a4 (g4) Rxh1 #

Originally posted by ilywrin
And a bit misleading 🙂 Since White cannot do this in 5 moves the only possibility would be:
1.Nf(h3) h6!! 2.Ng5 hg 3. g3(g4) Rxh2 4.Bh3 Rxh3 5. a4 (g4) Rxh1 #

Originally posted by THUDandBLUNDER
Yes, it is Black who mates.
Sorry for any confusion.
Note the the last move is not a capture.