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a b c d e f g h
8 a8 b8 q c8 d8 N e8 K f8 R g8 h8 8
7 a7 P b7 c7 d7 P e7 B f7 B g7 P h7 7
6 a6 b6 c6 d6 e6 f6 g6 h6 6
5 a5 b5 c5 p d5 e5 f5 g5 h5 5
4 a4 b4 c4 d4 k e4 P f4 g4 h4 p 4
3 a3 b3 c3 d3 p e3 p f3 g3 h3 3
2 a2 p b2 R c2 d2 e2 f2 b g2 p h2 2
1 a1 b1 c1 n d1 e1 f1 g1 h1 1
a b c d e f g h
White's rook and h pawn are tactically defended with a Skewer and a Fork respectively.

A piece is tactically defended when once taken, can be avenged with a tactic, regaining the advantage that had been lost. For example, if a pawn is taken by a queen, then it and the king can be forked with a knight.

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