Buzzled

Buzzled is one of the daily puzzles on Puzzmallow, a site run by a small team of two in the UK who design all their games themselves. The board is a honeycomb of hexes, most of them carrying a small number, and each row has a pin. Each pin has a target number and a colour, yellow or black, and the hexes of that colour in its row have to add up to exactly that target.

Every day there is a new numbered puzzle in four sizes, the same for everyone: Mini to warm up, Classic, Expert, and Master, where the numbers are gone and the pins count hexes instead of adding them. You click a hex to colour it, right click to cycle the other way, and a pin gets a green border when its row is right. Clicking a solved pin fills the rest of its row with the other colour, which saves time on large boards. A timer runs, and undo and reset are there if a line of reasoning goes wrong.

Because each hex sits on several rows at once, every choice has to satisfy more than one pin, which gives it the feel of a kakuro or kakurasu on a hex grid. It suits players who like number logic puzzles and want a choice of size depending on how much time they have.