Numerus

How it works: Choose a level. Memorize the randomly placed numbers while they are visible, then click their circles in ascending order from 1. Each round uses a newly generated layout.

Score and best result: Complete ten rounds; get at least seven right to win. Each correctly selected number earns 10 points, with a small bonus for finishing a round. Your best score is saved per level in this browser; eligible scores can be submitted to the online top-five leaderboard.