Uploaded November 2017 | Updated September 2026, 2 weeks ago

---

I got a 58 without recording, and spent 4-5 hours trying for another sub-60 on video. PB :) Note that I had "Ensure solubility" (no guess mode) off for this, as you can tell from the end.

This version is from Simon Tatham's Portable Puzzle Collection. The controls are arrow keys and enter. Link: chiark.greenend.org.uk/~sgtatham/puzzles -- Watch live at twitch.tv/qqwref