Combinatii

[pgn]
1. e4 e5 2. Nf3

{[pgndiagram][%csl Re5][%cal Rf3e5]}

2… Nc6 3. Bb5

{[pgndiagram][%csl Re5,Gc6][%cal Rf3e5,Rb5c6,Gc6e5] The Ruy Lopez: White’s third move attacks the knight which defends the e5-pawn from the attack by the f3-knight.}

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[/pgn]