# Licence for Wikibooks-derived coach notes

Coach explanations in `library/ideas.mjs` identified with the `wikibooks`
source key are paraphrased/adapted from Wikibooks contributors, [*Chess
Opening Theory*, Two Knights 5.e5](https://en.wikibooks.org/wiki/Chess_Opening_Theory/1._e4/1...e5/2._Nf3/2...Nc6/3._d4/3...exd4/4._Bc4/4...Nf6/5._e5).

These identified notes are available under the [Creative Commons
Attribution-ShareAlike 4.0 International licence (CC BY-SA 4.0)](https://creativecommons.org/licenses/by-sa/4.0/).
They have been paraphrased and adapted from the linked source. This licence
covers only the identified coach notes, not Gambit Drill's software,
repertoire, or other original content.