67- The Solution

Solution: 1. Qh8-h1! threat 2. Bg2xd5, Qh1-c1#
1. ... Bc8-e6/b7, Rd5 ad lib 2. Qh1-c1#
1. ... b3-b2 2. Bg2xd5#
When a piece moves behind the first one forming a battery, we call this movement an ambush.