Card Blitz 21

Card Blitz 21 was one of those straightforward games you'd find during the Flash era. It didn't try to be anything more than a quick, clever puzzle you could play in a browser tab. The presentation was simple, with clean cards and a basic interface that loaded almost instantly. It fit right in with that period of web gaming where a good idea was enough to keep you clicking for a while.

You control everything with the mouse, clicking and dragging cards across a grid. Your goal is to arrange the cards in each vertical column so their values add up to exactly 21. Number cards are face value, while jacks, queens, and kings are worth ten. You slide cards between columns, trying to balance the totals while also dealing with a timer that counts down. The game starts calmly but the pressure builds as you manage multiple columns at once. It feels like a tidy, focused race against your own planning.