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19 votes
4 answers
1k views

Generalization of a mind-boggling box-opening puzzle

Motivation. Suppose we are given $6$ boxes, arranged in the following manner: $$\left[\begin{array}{ccc} 1 & 2 & 3 \\ 4 & 5 & 6 \end{array}\right]$$ Two of these boxes contain a ...
Dominic van der Zypen's user avatar
9 votes
1 answer
1k views

A Game of Knights and Queens

Let $m,n,u,v \in \mathbb{N}$ be parameters with $m,n \geq 3$. Suppose two players play a game on a $m \times n$ chess board and we denote the squares of the board by the set of points $ (i,j) $ such ...
Stanley Yao Xiao's user avatar