Chess Board
[ECO code C65]
RUY LOPEZ - Berlin Def.
Mortimer Trap (Mate)
Black (the trap setter) took White's undefended bishop on QKt5(b5) with his QBP to threaten 7..PxKt in too much haste - a case of the biter being bit!
White's QB4(c4) Knight under attack doesn't just escape - it moves to Q6(d6) for a smothered mate.
    White  Black	White  Black
 1. P-K4   P-K4	     5. KtxP?? P-B3
 2. Kt-KB3 Kt-QB3    6.	Kt-B4  PxB??
 3. B-Kt5  Kt-B3     7.	Kt-Q6 mate
 4. P-Q3   Kt-K2?!
Checkmate: Undo or Jump or Mates or Clear