Chess Puzzle of the Week (150): Solution

Russ, Colin Albert Harry
2nd Comm., The Problemist Supplement, 2007
#3

The solution to last week’s puzzle, posted as a tribute to the late Colin Russ, is:

  1. Ra7!

If 1… g5, then 2. Kg4 followed by 3. B(x)f5#.

If 1… f5, then 2. Ba6 followed by 3. Bc8#.

If 1… f6, then 2. Bxg6 folllowed by 3. Bf7#