Chess Puzzles, Defence to Attack and Counterattack, Puzzle 6:
Part of our collection of Assorted Chess Puzzles
Defence to Attack and Counterattack
Black's Bishop (Bd4) attacks White's Queen (Qf2), which is in the middle of defending against a Mating attack, from Black's Queen-Bishop Battery, along the a8-h1 diagonal.
How can White defend by Counterattacking, and what result can White force?