I have been intrigued with Tregaskis's Draw ever since I saw the movie King Me (Was that Steve Holliday?) So I couldn't help but notice in Logical Checkers Book 4 by Richard Pask, Lesson 212: Roger’s Draw (Black man on 20) on page 33 that Diagram 613 White to Play and Draw leads to Tregaskis's Draw, colors reversed from Vocabulary Of Checkers by W.T. Call. After 5 moves on each side (10 plys) and the Black man still on square 20, we get Tregaskis's Draw:
White to Play and Draw.
--George Hay