Chess Board
[ECO code B15]
TRANSPOSITION
CARO-KANN DEF. to QP. GAME (Blackmar-Diemer G.)
White's gambit KBP to KB3(f3) attacked Black's K4(e4) pawn, an inferior but lively alternative to 4.KtxP.
Black arrives at the O'Kelly Defence of the Blackmar-Diemer Gambit Declined by a King's Knight development to KB3(f6) defending his KP.
    White  Black    Transp.White Black
 1. P-K4   P-QB3    (1.	P-Q4   P-Q4  )
 2. P-Q4   P-Q4	    (2.	P-K4!? PxP   )
 3. Kt-QB3 PxP	    (3.	Kt-QB3 Kt-KB3)
 4. P-B3?! Kt-KB3   (4.	P-B3   P-B3  )
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