How to play

• • Each turn, the current player places the top card of their pile face up in the centre — that's the subject.
• • Going around the table, players judge the subject: Yea or Nay. Press a button to play the top card of your own pile as your bid.
• • Correct: your bid card stays on the table as the new subject. Wrong: you pick up the subject plus one extra card from your pile.
• • Switch cards (marked with red/green dots) flip the verdict.
• • First to empty their hand wins.

The six categories

• Stars: Count the stars in each half — Yea if the top and bottom counts match, Nay if they differ.
• Maths: Two sums around an '=' sign — Yea if they're equal, Nay if they're not.
• Colours: Three colour words stacked — Yea if the middle word names the ink colour of the outer words, Nay if not.
• Puzzle: Trains: identical = Yea, different = Nay. Flowers: even petal ring = Yea, odd = Nay.
• IQ: A 2×2 grid of nested shapes rotating around — Yea if the pattern holds all the way round, Nay if one quadrant breaks it.
• Pattern: A scatter of shapes in colour combos — Yea if every combo appears an even number of times, Nay if any is odd.