Original expert crossword questions, letter-construction records and 150 compiled boards. New source only; depends on the retained v10 bridge, CSS, art and legacy bank from 3.4.0. Source documentation, not a standalone plugin. Questions are authored; references verify selected facts rather than supply copied puzzles. Editorial difficulty, not a human playtest result. Local tests use a JSDOM UI adapter and native PHP; their workspace paths are recorded in the test scripts.
