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a b c d e f g h
8 a8 b8 c8 d8 e8 f8 g8 h8 8
7 a7 b7 r c7 d7 e7 f7 g7 h7 7
6 a6 b6 c6 d6 e6 P f6 g6 K h6 6
5 a5 P b5 c5 P d5 e5 f5 g5 h5 5
4 a4 p b4 c4 N d4 e4 f4 g4 h4 4
3 a3 b3 c3 d3 e3 f3 g3 p h3 3
2 a2 b2 B c2 d2 R e2 f2 r g2 k h2 p 2
1 a1 b1 c1 d1 e1 f1 g1 h1 1
a b c d e f g h
The Knight seems to be overworked. Black should trade their c-Rook and take the free Bishop.
a b c d e f g h
8 a8 R b8 c8 B d8 K e8 Q f8 g8 h8 R 8
7 a7 P b7 P c7 P d7 P e7 N f7 g7 h7 P 7
6 a6 b6 c6 d6 e6 f6 P g6 P h6 6
5 a5 b5 c5 d5 n e5 P f5 g5 h5 5
4 a4 b4 c4 b d4 N e4 p f4 B g4 h4 4
3 a3 b3 c3 d3 p e3 b f3 g3 h3 3
2 a2 p b2 p c2 p d2 e2 f2 p g2 p h2 p 2
1 a1 r b1 c1 d1 k e1 q f1 g1 n h1 r 1
a b c d e f g h
8. ...Nxc5 9.gxc5 Bxe5

An overloaded piece, or "overworked" piece, is a piece with too many defensive duties. An overloaded piece can be exploited by capturing one of the defendees, letting the overloaded piece take the sacrifice then taking the other piece, now hanging.

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