Chess Board
[ECO code C37]
(KGA:) KING'S KNIGHT'S GAMBIT
Classical Var. - Trap Variation (Mate)
Black's king had to return to K2(e7), but this time with no fourth-rank KKtP to impede White's queen.
White's KR5(h5) Queen to K5(e5) gives mate - all from a KKt sacrifice after Black's poor decision to move his king's weak BP out to defend his KKtP.
    White  Black    5. KtxP!  PxKt??
 1. P-K4   P-K4	    6. Q-R5 ch K-K2 fcd
 2. P-KB4  PxP	    7. QxKtP ch K-K1
 3. Kt-KB3 P-KKt4   8. Q-R5 ch K-K2 fcd
 4. B-B4   P-KB3?!  9. Q-K5 mate
Checkmate: Undo or Jump or Mates or Clear