Tuesday.ca
One puzzle a weekday, easy on Monday and not on Friday, with the weekend left alone.
Tuesday.ca publishes one puzzle each weekday and then stops. Monday is easy, the difficulty climbs through the week, and Friday is day 5 of 5.
Stopping is the design. A daily game with no end quietly becomes an obligation, and the streak is usually the part doing that work. Saturday and Sunday still get bonus puzzles for anyone who wants them, but they sit outside the streak entirely: solving one adds nothing to it, and skipping one costs nothing.
Each day lives at its own dated URL with its own share image, and the week’s archive is kept locally on the device. An account is optional and carries the streak.
What you actually get
The puzzles rotate through roughly three dozen engines, grouped as logic, visual, fill-in, and twist. The logic side runs to Star Regions, Tents & Trees, Thermometers, Skyscrapers, Futoshiki, and Venn Verdict. The visual side asks you to rotate a block shape until it matches a silhouette, count the cubes hidden underneath a stack, or rebuild a grid from memory. Elsewhere there are word ladders, cryptograms, phrases with the vowels removed, and a chain of words routed around the sides of a letter box.
Every engine has its own help page with the rules and two practice puzzles that do not touch your streak or your stats. Working out what a puzzle type wants from you should not cost a day.