Three indistinguishable dice

We tried a dice puzzle today set a while back by Matt Parker.

The Three Indistinguishable Dice Puzzle - YouTube

You only have the tool above – three dice inside a cube.

But you want to play a game that requires throwing a single dice and then a game that requires throwing two dice and adding their score together. Is there a way that you can use the sum of these three dice to simulate both of these scenarios?

Task 1

First work out the distribution of numbers you can score with three dice

Sum3456789101112131415161718
Number of ways

Can you map this in a nice way to the distribution for 1 dice?

Sum123456
Number of ways

Task 2

How about for 2 dice?

Sum23456789101112
Number of ways

Might not be able to do it using (only) the sum …

Printable worksheet here.

Succinct solution here or watch the full brilliant video by Matt.

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