The sticks are face down and stay that way until you have picked. There is nothing to read and nothing to work out: you are choosing odds. Two sticks is a coin flip that pays 2, twelve sticks is a 1-in-12 shot that pays 12, and the expected points are the same either way — what the dial really sets is how often you go home with nothing.
The streak counts days played, not days won. Show up and pick a number — win or lose, the streak goes up. A missed guess costs the points for that round, nothing more. Only a day you skip entirely breaks it, so the number in the header is closer to a habit tracker than a win tally.
One round a day. Number keys pick a stick. Signed in, the server deals the board and holds the lengths until your pick is in, which is why only signed-in rounds are ranked.