Crossnumber winners, issue 09

Did you solve it?

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With issue 10 of Chalkdust fast approaching, it’s time to announce the winners of the Chalkdust prize crossnumber #9! Before we reveal the winners, here is the solution of the crossnumber.

2 2 2 2 2 2 2 2 2 2 2 2 2 2 2
9 6 4 8 8 9 3
9 4 6 6 1 6 9 4
1 3 1 1 1 7 2 5 9 5
6 6 6 6 6 6 6 6 6 6 6 6 6 6 6
9 2 2 8 2 0 8 7
9 1 9 2 2 2 9 2 3 5 8 3 8
3 6 1 5 3 3 7 1 9 9
5 7 1 2 2 9 1 9 2 2 2 9 2
8 1 6 3 4 2 1 3
3 3 3 3 3 3 3 3 3 3 3 3 3 3 3
8 9 9 4 7 4 3 2 7 4
2 3 4 0 7 4 1 2
3 6 6 4 8 3 3
9 9 9 9 9 9 9 9 9 9 9 9 9 9 9

The sum of the across clues was 2222222406182591.

There were 100 entries, 66 of which were correct. The randomly selected winners are:

  1. Matt Hutton, who wins a £100 Maths Gear goody bag,
  2. George Lambert, who wins a Chalkdust T-shirt,
  3. Sami Wannell, who wins a Chalkdust T-shirt,
  4. Deborah Tayler, who wins a Chalkdust T-shirt.

Well done to Matt, George, Sami and Deborah, and thanks to everyone else who attempted the crossnumber. See you shortly in issue 10…

Matthew Scroggs is a PhD student at UCL working on finite and boundary element methods. His website, mscroggs.co.uk, is full of maths and now features a video of him completing a level of Pac-Man optimally.
@mscroggs     mscroggs.co.uk    + More articles by Matthew

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