Zwischenzug
The zwischenzug is a chess tactic in which a player, instead of playing the expected move (commonly a recapture ), first interposes another move posing an immediate threat that the opponent must answer, and only then plays the expected move
Time to practice! White to move and win. The 4th puzzle is black to move and win.
Answers in the next section
Answers
Qb5 (example)
Nd5
Nd5, QxQd3
NxBe7+, Kh8
RxQd3
Qh6+ followed by BxQb5
If white does BxQb5 first, black can respond with Bf5+ (discovered check by the rook) and capture the white queen
… Nxd4