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I'm playing through the Blocks That Matter demo and there's one bonus level called 'Impossible.' I have four blocks of sand I can arrange in a tetris shape and they're affected by gravity. I can jump 2.5 blocks' height and I need to reach a place that's high seven.

Is this level actually impossible?

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  • Fun fact: "tetris shapes" actually have a name
    – Dave McClelland
    Sep 22, 2011 at 2:28
  • @Dave I know but I didn't feel like digging it up :P
    – badp
    Sep 22, 2011 at 9:48
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    On the other hand, it's mentioned within the game itself, several times, so you don't really have that as an excuse, either :P
    – Raven Dreamer
    Sep 25, 2011 at 3:36

2 Answers 2

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Obviously yes, Impossible is possible.

Unlike in Minecraft, sand takes a while before it actually falls down to gravity, so you can just build one tile higher and hurry before the entire contraption falls down.

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Here's an alternative solution, that uses the same basic idea:

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Start by placing the blocks like this

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As the blocks fall, jump out and back on top of where they're landing.

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This method lets you get a little higher than if you were using the 4th block as a step.

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  • It's a bit trickier, because if you get squeezed between two sand blocks you will be forced to step down and start over. Kudos for pulling this though!
    – badp
    Sep 25, 2011 at 7:50
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    @badp - Unfortunately, I can't stand the rest of the game. After playing games like Braid and Toki Tori, which feature a rewind feature, a puzzle game who's only recourse is a full-level reset quickly becomes more than tedious. (to me)
    – Raven Dreamer
    Sep 25, 2011 at 15:10

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