CHESS SOLUTION:

1 Qg3 ! , fe; 2 Qg7, Rf8; 3 Rc7 and Black had to give up his queen to avoid mate

Also losing for Black are:

A: 1...Kf8; 2 Nd7 + B: 1...Qd8; 2 Qg7, Rf8; 3 Qxb7, fe; 4 Rc8 C: 1...Rf8; 2 Qg7 transposes to the game