Chess Board
[ECO code E70]
KING'S INDIAN DEFENCE - Classical line
Accel. Averbakh - Trap Variation
Black developed his queen's knight to Q2(d7) to defend his king's rook by supporting his KB3(f6).
White castles long (ie. Q-side) to gain a piece, as his Queen's Rook pins Black's QKt after 10.KtxKt (and if 9..K-K1, 10.KtxP+ch gains QR).
    White  Black     5. B-Kt5  P-K4??
 1. P-Q4   Kt-KB3    6.	PxP    PxP
 2. P-QB4  P-KKt3    7.	QxQ ch KxQ fcd
 3. Kt-QB3 B-Kt2     8.	Kt-Q5  Kt-Q2
 4. P-K4   P-Q3	     9.	0-0-0!
Example ends: Undo or Jump or Clear