Chess Board
[ECO code C71]
RUY LOPEZ - Steinitz Def. Deferred
"Attack" Var. - Noah's Ark Trap (#3)
White's queen captured Black's resulting Q5(d4) pawn too early - Black's QBP advances to attack and dislodge the queen, so that by 10..P-B5 Black will win the bishop. Same in Steinitz D.D. main has more info.
    White  Black	white  Black
 1. P-K4   P-K4	     6.	0-0    P-QKt4
 2. Kt-KB3 Kt-QB3    7.	B-B3   KtxP
 3. B-Kt5  P-QR3     8.	KtxKt  PxKt
 4. B-R4   P-Q3	     9.	QxP??  P-QB4!
 5. P-Q4   B-Q2
Example ends: Undo or Jump or Clear