Solution: 1. Rh6-h3! threat 2. Sb5xd6#
1. ... Rf5-d5 2. Ka3-a4 threat 3. Sb5-a3#
2. ... Rd5-d3 3. e2xd3#
1. ... Rf5-f6 2. Ka3-a4 ad lib 3. Sb5-a3#
This setting is called roman. The black piece is decoyed, but still can stop the attack, however black position results weakened.
