Titrate
A word ladder, one a day. Start on one word from the unit and get to another, changing one letter a rung. Every rung has to be a real word. Par is the shortest path, and the machine knows it. The clock starts when you type.
Titrate
0 day streak 0:00
Solved
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Practice gives an unlimited supply of pairs, ordinary words both ends, par four to seven. The daily is the one that counts: the streak is the run of days on which the day's ladder was finished without a hint.
Progress stays in this browser. Any four-letter word in the dictionary is a legal rung; par only leans on the common ones.
To titrate a drip is to nudge the rate a step at a time until the numbers come right.