Cardinal (Puzzleship)

Each card in the row needs two facts proved about it: its rank and its suit. Under each position sit two sets of chips, one for ranks and one for suits; you cross chips out and lock them in, and a card turns face up when both are locked. Chips that become impossible are crossed out for you.

The wording carries detail. Face cards count as 11, 12 and 13 when a clue talks about odd or even. Rows longer than four cards must repeat a suit, and a clue saying the club means there is exactly one club. The ends of the row resolve most easily, because a neighbour clue there can only point one way.

Puzzleship publishes six rows of Cardinal a day, graded from very easy to ultra hard. The easiest is a row of three cards with four short clues; the hardest lays out six cards with a long list of neighbour and between clues. Each day's rows are numbered and dated, the same for every player, and a new set goes up at 13:00 UTC (the page itself says midnight in your own time, which is not when it changes); earlier days stay playable in the archive. The site is free with ads, and a premium plan removes them. Finishing a row shows your daily streak, and signing in keeps it.