Chess Board
[ECO code E92 > 93] Move Move Here
The Petrosian System

Black's pawn to K4(e5) challenged White's QP.
White's Q4(d4) Pawn moves to a strong Q5(d5). Armenian Tigran Petrosian (1929-1984) was World Chess Champ. 1963-69. W-Alt.
    White  Black	White  Black
 1. P-Q4   Kt-KB3    6.	B-K2   P-K4
 2. P-QB4  P-KKt3    7.	P-Q5
 3. Kt-QB3 B-Kt2
 4. P-K4   P-Q3
 5. Kt-B3  0-0

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