# The Vowel Sudoku Challenge

This is an entry into the Fortnightly Topic Challenge #36

Here is a partially filled in Sudoku-like board involving the five vowels:

As with real Sudoku, no vowels in any 9-square box or along any 9-square line can be repeated. Now, since there's 5 vowels instead of 9 digits, there are just a few blank spaces, so here's the challenge:

1. Fill in yellow squares with vowels to maintain the Sudoku-ness of the board
2. Using every consonant except 'Q' once, fill in the grey squares such that every 3 letter span within each red box is a valid word. 20 consonants, 20 words ('Y' is a consonant here).

Words are valid if they have an definition on https://www.merriam-webster.com or http://www.dictionary.com/, are not capitalized, and are not abbreviations. Rare words are fine and perhaps necessary.

There is at least one solution.

The first solution of any kind gets the win and the check. Good Luck!

EDIT: The 'R' may be moved if desired and at your own peril.

• since you have already added "R", I presume that can't be used anymore?
– Sid
Jun 29, 2018 at 18:30
• I put the R there to help explain the rules, and also to give a jumping off point as this is where the R is in my solution. If you want to move it to a different grey square I'll still accept the answer all other things equal Jun 29, 2018 at 18:54
• Just to be explicit: longer spaces don't need to be words? E.g., U--- at bottom right doesn't need to be a word, but the --- it contains does? Jun 29, 2018 at 19:14
• The center square is an O. Does that suggest that we should fill the centers of each corner square with vowels (which also need to obey sudoku rules)?
– user27014
Jun 29, 2018 at 19:59
• @Mnemonic i'd say no since there would need to be 7 voyels in thoses lines then and we won't be able to obey sudoku rules Jun 29, 2018 at 20:03