Filbert N10-N12 and Dewey's round 3 survivors: a narrow-terminal decideShown guard test, a way out in the hidden decide box, a U+18D08 width test, a cut-box Esc back test, and the README row count as an example. Owner Darkwing; reviewers Dewey and Filbert. Co-Authored-By: Claude Opus 5.5 <[email protected]>