Three arrays a day. One bogosort each.

Shuffle at random until it's sorted. Fewest shuffles wins.

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How it works

Everyone gets the same arrays each day. Bogosort shuffles an array at random until it happens to be sorted. On average that takes n! shuffles: 24 for 4 items, 3,628,800 for 10.

Classic has arrays of 4, 7 and 10 items, and the fewest shuffles wins. Finish all three for a surprise. Marathon mirrors it: arrays of 5, 4 and 3 items, and the most shuffles wins.

You get one attempt per level. When you press the button, the server picks a random seed, runs the bogosort and records your score. The animation replays exactly those shuffles, faster and faster.

The daily ranking uses your luck: the geometric mean of shuffles ÷ expected over the three levels, so each level counts equally.