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a b c d e f g h
8 a8 r b8 c8 d8 q e8 f8 r g8 k+ h8 8
7 a7 p b7 p c7 d7 b e7 n f7 p g7 p h7 B~ 7
6 a6 b6 c6 n d6 e6 p f6 g6 h6 6
5 a5 b b5 c5 d5 p e5 P f5 g5 h5 5
4 a4 P b4 c4 d4 e4 f4 B g4 h4 P 4
3 a3 b3 c3 P d3 ~~ e3 f3 N g3 h3 3
2 a2 b2 c2 d2 e2 f2 P g2 P h2 2
1 a1 R b1 N c1 d1 Q e1 R f1 g1 K h1 1
a b c d e f g h
If 1...Kxh7??, then winning the black queen is guaranteed: 2.Ng5+ Kg7 3.h5+ Kh6 4.Nxe6+ Kh7 5.Nxd8.

The Greek Gift sacrifice is a common bishop sacrifice that if accepted, allows for a powerful kingside attack. To carry out the sacrifice, one must play 1.Bxh7+ (or 1...Bxh2+ correspondingly) against the kingside-castled king. If 1...Kxh7 (2.Kxh2) is played, the king becomes exposed and prone to mating attacks such as Ng5+ (Ng4+), Qh5+ (Qh4+), and h5+, (h4+).