Chess Board
[ECO code C33]
(KGA:) BISHOP'S GAMBIT
McDonnell Attack (#2)
White develops his Queen to KB3(f3), threatening 9.QxBP+ch..K-Q1, 10.QxB or 9.QxP..QxQ, 10.PxQ.
Black moves his doubled KKtPawn from KKt6(g3) to KKt7(g2) with check, to retain his queen.
    White  Black	White  Black
 1. P-K4   P-K4	     5.	Kt-QB3 B-Kt2
 2. P-KB4  PxP	     6.	P-Q4   Kt-K2
 3. B-B4   Q-R5 ch   7.	P-KKt3 PxP
 4. K-B1   P-KKt4    8.	Q-B3   P-Kt7 ch
Example ends: Undo or Jump or Clear