Chess Board
[ECO code D00]
QP. GAME - Blackmar-Diemer Gambit
Vienna Var. - Teichmann Retreat Variation
Black's QBPawn to QB3(c6) safeguarded his Q-side corner and strengthened his Q4(d5) control.
White's KR3(h3) Pawn to KR4(h4) threatens 11.P-R5. Can arise via the Gundaram Def. in 9 moves.
    White  Black	White  Black
 1. P-Q4   P-Q4	     6.	P-KR3  B-R4
 2. P-K4!? PxP	     7.	P-B4   B-Kt3
 3. Kt-QB3 Kt-KB3    8.	Kt-K5  P-K3
 4. P-B3   PxP	     9.	B-Kt2  P-B3
 5. KtxP   B-Kt5    10.	P-KR4
Example ends: Undo or Jump or Clear