You are given a 3x3 grid with 3 crosses as shown below. Each turn, you can select a cross and slide it along horizontally or vertically. It will continue sliding until it hits another cross or a wall. Can you get a cross into the centre square?
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3 Answers
8
Yes.
Consider
|X|X|=|
|X|=|=|
|=|=|=|
|X|=|X|
|X|=|=|
|=|=|=|
|X|=|=|
|X|=|=|
|=|=|X|
|=|=|X|
|X|=|=|
|=|=|X|
|=|=|=|
|X|=|X|
|=|=|X|
|=|=|=|
|=|X|X|
|=|=|X|
Daniel S
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Correct and well done! You can now try the harder version of this puzzle: https://puzzling.stackexchange.com/questions/122806/sliding-crosses-in-a-4x4-grid – Dmitry Kamenetsky Oct 19 '23 at 12:46
3
Is it possible?
Yes
The follow 6-move sequence is the shortest I can find. No proof that it is optimal.
fljx
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