16. Qc7
+---+---+---+---+---+---+---+---+
8 |bR | .|bB | .|bQ |bR.|bK | .|
+---+---+---+---+---+---+---+---+
7 | .| |wQ.|bN | .| | b.| b |
+---+---+---+---+---+---+---+---+
6 | | .| | .| b | .| | .|
+---+---+---+---+---+---+---+---+
5 | b.| |wB.| | .| b | .| |
+---+---+---+---+---+---+---+---+
4 | | .| | .| | .| | .|
+---+---+---+---+---+---+---+---+
3 | .| | w.| | .|wN | .| |
+---+---+---+---+---+---+---+---|
2 | w | w.| | .| | w.| w | w.|