Change Checkers, we set you the task of cracking our serial number code challenge in celebration of the release of the brand new Alan Turing £50 Note.

We asked you to use the letters from our clues to spell out a Chief Cashier and to tell us their connection with Alan Turing.

A huge congratulations goes to John MacLeod for correctly cracking the code – your Alan Turing £50 Polymer Note Date Stamp Issue is on it’s way to you! Our Chief Cashier was Kennith Peppiatt, who held his position when Alan Turing and his team cracked the enigma code.

We have responded to your email address with details of how to claim your prize!

Thanks to everyone who took part and a huge congratulations to our lucky winner. Best of luck to everyone next time!

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