Eleven
Interactive version [v2 -- below]; Check button: check puzzle for errors; Reveal button: reveal current word
Print versions [.pdf]: v1: puzzle; solution; v2: puzzle; solution
Download puzzle file [.puz]: v1, v2 (which includes solution); open .puz in a crossword app, e.g.,- Mac, Windows, iPad: Across Lite (free)
- Android, iOS: Crosswords