Many thanks to everyone who gave "Five Must Get Four?" a go.
Congratulations to Venkatraghavan S., Shashwat, and Ramki Krishnan for grabbing the top three spots on the podium!
Please reload the puzzle page and then click on "Check all!" first (this will clear grid mistakes, if any). Clicking on "Reveal all!" will reveal the solution, detailed notes, and the list of solvers (plus some selected feedback).