Jihanki (Puzzmallow)

Jihanki is a daily logic puzzle on Puzzmallow, the site behind Crossflip, Quickflip, Pipcross and Terraformation. It began in late September 2026, and each day's Classic puzzle is numbered. Jihanki is Japanese for vending machine, and the job is to restock one.

The Classic machine has sixteen bays in a 4x4 grid, each with a price label in yen. Every product in the restock crate pairs one of four brands with one of four product types, and every pairing appears exactly once. Two rules hold every day: each brand appears once in every row and column, and so does each type. On top of that come the day's extra rules, such as one product being limited to bays of 220 yen or more, two brands never sitting side by side, or one bay being left of another in a given row. A few bays start stocked and cannot be changed.

You tap a product in the crate to pick it up and tap an empty bay to load it. Each bay shows small icons of every brand and type, which you cross out or highlight as you rule options in or out, much like pencil marks in sudoku. Undo and Reset are there, and a timer is optional. Every puzzle has one solution reachable by logic alone, and a 3x3 Mini puzzle each day makes an easier start.

It suits players who like logic grid puzzles and sudoku variants and want something that combines the two in a few minutes.