White checkmates or wins the Queen for a Knight in 2 moves.

SEE ANSWER BELOW >

Diagrams from John Bain’s best-selling book,

Chess Tactics For Students

Chapter 9 Double Threats –

A DOUBLE THREAT, as used in this chapter, is a move that threatens to checkmate or to win a piece. To avoid checkmate, the opponent must give up the threatened piece. Some Double Threats can be simple, as shown in Diagram 249. Others take two or more moves to set up.

Next, DOUBLE THREATS Diagram 260:

Black checkmates or wins the Rook on c7 in 2 moves >

Chess Tactics For Students

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Chess Tactics For Students is a workbook for intermediate and advanced students containing 434 carefully selected problems in worksheet format. Chess Tactics has been extensively field tested with elementary, middle-school, and high-school students over a four-year period.

This book is ideal for independent seat work as well as for homework and classroom instruction.

The worksheet format and Answer Key enable self-correction with minimal dependence or direct help from a chess teacher, coach, or parent.

Answer – Diagram 259:

1. Nf5                      Nxf5??

2. Qh8#

or

1. Nf5                       f6

2. Nxe7