notyetagm: <A SQUARE CAN BE A TACTICAL TARGET> From Chess Today 2802; I added the diagrams:
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White: David (2562)
Black: Rozentalis (2582)
Championship of Paris (6), 03.07.2008
The Queen's Gambit Accepted – [D20]
 click for larger view20...Nd3? A blunder in an objectively
lost position.
 click for larger view21.Re4! 1–0. Black resigned as he
was losing a piece.>
21 ♖e1-e4! is a <DOUBLE ATTACK>, a <FORK> from the White e4-rook. The White e4-rook <FORKS> the <UNDEFENDED> Black g4-bishop and the d4-forking square, from which the White e4-rook will <FORK> the Black d6-king and the <UNDEFENDED> Black d3-knight. So 20 ... ♘e5-d3? is a -BLUNDER- because it <LINES UP> the Black d6-king and the <UNDEFENDED> Black d3-knight, turning the d4-square into a <TACTICAL BASE>. Remember, <A.C.T.S = ALIGNMENTS CREATES THREATENED SQUARES>. Here the alignment Black d6-king + <UNDEFENDED> Black d3-knight turns the d4-square into a <TACTICAL BASE>, a <FORKING SQUARE>. Hence 21 ♖e1-e4! is a <DOUBLE ATTACK>, the e4-square being the <TACTICAL BASE>, the <UNDEFENDED> Black g4-bishop being one <TACTICAL TARGET>, and the d4-forking square being the second <TACTICAL TARGET>. |