Credits & Licenses

Fourthought: Daily Puzzles uses the following open resources. All puzzles, game rules and artwork are original to Fourthought.

Word lists (Whittle and Steps)

The list of valid words is derived from SCOWL (Spell Checker Oriented Word Lists) by Kevin Atkinson, via the Hunspell en_US dictionary.

Copyright 2000-2011 by Kevin Atkinson

Permission to use, copy, modify, distribute and sell these word
lists, the associated scripts, the output created from the scripts,
and its documentation for any purpose is hereby granted without fee,
provided that the above copyright notice appears in all copies and
that both that copyright notice and this permission notice appear in
supporting documentation. Kevin Atkinson makes no representations
about the suitability of this array for any purpose. It is provided
"as is" without express or implied warranty.

SCOWL also incorporates public-domain material from the Moby Words II project (Grady Ward) and Brian Kelk's UK English Wordlist. Full details: wordlist.aspell.net.

Fonts

Plus Jakarta Sans, Atkinson Hyperlegible and JetBrains Mono, served by Google Fonts under the SIL Open Font License 1.1.