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This month we present another Sudoku puzzle with a couple of twists—it uses letters instead of digits, and there is a hidden message. In one of the rows or columns of the solved Sudoku, you will find what Lisa was to Apple.

Simply fill in the empty cells with the nine unique letters you’ll find in the grid in such a way that each row, column, and small square contains each of the nine letters exactly once.

Solution right here next issue. Or on Twitter right now, no doubt.

Solution to Last Issue’s Quiz

We hid in these four unusual headlines several things that should be meaningful to any software developer:

  • Quakes Bury Typhoon

  • Landlady Feels Conic Abscissa

  • Alpacas Repel Sesame Allergen

  • Googling Froth Spills

We used Wolfram Alpha’s Letter Bank search expression to find these fourteen words with programming languages hidden in them. They are not quite acronyms, but close. Unlike acronyms, Letter Banks can contain extra copies of letters from the original words. Here are the fourteen words and the programming languages hidden in them:

quakes

squeak

bury

ruby

typhoon

python

landlady

dylan

feels

self

conic

icon

abscissa

basic

alpacas

pascal

repel

perl

sesame

mesa

allergen

erlang

googling

lingo

froth

forth

spills

lisp