Chess Board
[ECO code A13]
TRANSPOSITION
NEO-CATALAN (Accepted) to CATALAN (Open Var.)
Black's Q2(d7) bishop on to QB3(c6) pinned White's KKt, doubled K5(e4) control and enabled 7..QKt-Q2.
White's QP advance sets an Open Catalan. W-Alt.
    White  Black    Transp.White Black
 1. P-B4   P-K3	    (1.	P-Q4   Kt-KB3)
 2. Kt-KB3 P-Q4	    (2.	P-B4   P-K3  )
 3. P-KKt3 Kt-KB3   (3.	P-KKt3 P-Q4  )
 4. B-Kt2  PxP		  (4.)
 5. Q-R4 ch B-Q2	  (5.)
 6. QxBP   B-B3		  (6.)
 7. P-Q4	    (7.	Kt-KB3	     )
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