The white king is undefended.

Logic Level 2

White to move. Assuming optimal play for both sides, what is the minimum number of moves for white to checkmate the black king?

1 4 3 2

A Former Brilliant Member by A Former Brilliant Member

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2 solutions

Syed Hamza Khalid
Nov 13, 2017

The moves are: 

1. Rf7+ .... (Here black has 2 options) either Rxf7 or Ke8

2.if Ke8, then Qg8# or if Rxf7, then Qxf7#

Therefore 2 moves is the answer.

Note: '+' denotes a check while '#' denotes a checkmate. These are standard symbols used to write or record chess games.

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Vilakshan Gupta
Nov 7, 2017

First Move (white) - Rf7

First Move (black) - Rf7 or Ke8

Second Move (white) - Qf7 or Qg8 respectively

Checkmate!

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