Solution to Study Number 2
The theme of this study came from adjournment analysis of the game M.J.Donelly-J.Rathbone, Manchester 1973.
White uses the threat to promote the g-pawn to trap the black king and set up a mating position and ignores the black c-pawn which is allowed to queen.
1. Rg5 Ke7 2. g7 Rg1+ 3. Kh4 Rxg5 4. Kxg5 Kf7 Kh6 Kg8 6. Kg6 c4 7. h4 c3 8. h5 c2 9. h6 c1+Q 10. h7 mate.