White promotes the c-pawn to a Queen in 3 moves!
SEE ANSWER BELOW >
Diagrams from John Bain’s best-selling book,
Chess Tactics For Students
Chapter 10 Promoting Pawns –
PROMOTING A PAWN, often called Queening a Pawn, is one of the most powerful moves in chess.
Promoting a pawn often results in being a Queen ahead! Because of this, sacrificing one or more pieces to make it possible to promote a pawn may be the best strategy in many positions.
Promoting a pawn often takes two or more moves to set up, as shown in Diagram 280.
Next, PROMOTING PAWNS Diagram 294:
White promotes the b-pawn to a Queen 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 293:
1. Rd8+ Rxd8
2. Rf8+ Kxf8
3. cxd8=Q+
or
1. Rd8+ Rxd8
2. Rf8+ Kd7??
3. cxd8=Q+