Chess Board
[ECO code C20]
ALAPIN OPENING
"Hippopotamus" Variation
White advances his Queen's Pawn to the centre (defended by his KKt) to attack both Black's queen (by 6.BxQ) and KP (by 6.PxP).
Black's Knight removes White's QP, but leaves his queen en prise (ie. in a position to be taken).
    White  Black	White  Black
 1. P-K4   P-K4	     5.	P-Q4   KtxP!?
 2. Kt-K2  Q-R5
 3. QKt-B3 Kt-QB3
 4. P-KKt3 Q-Kt4
WHITE to Continue or Undo or Jump or Clear