Chess Board
[ECO code A56] Move Move Move Here Move Here
MODERN BENONI DEF. - Petrosyan System
(towards) Czech Variation (alt. route)
White developed his queen's knight, tripled his QP defence and supported a likely P-K4 advance.
Black switches lines, advancing his KPawn to K4(e5) (a Czech Benoni characteristic), and frees his KB. B-Alt.
     White   Black
 1.  P-Q4    Kt-KB3
 2.  P-QB4   P-B4
 3.  P-Q5    P-Q3
 4.  Kt-QB3  P-K4  Main 4B,3B route
WHITE to Move or Undo or Jump or Clear
 
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