Spicy

Yes — when you play a card facedown you declare its number and spice, and “your declaration may be true, but it doesn't have to be.” (Rulebook p.3).

Do not look at any facedown cards; the penalty for doing so is to draw 1 card into your hand. (Rulebook p.3).

The first card of a spicy stack must be a 1, 2, or 3 in any spice; later plays must declare a higher number in the same spice, and after a 10 is declared the next declaration must be a 1, 2, or 3 in that same spice (wrapping). (Rulebook p.3).

Any player may challenge the topmost card by calling either “wrong number” or “wrong spice”; reveal the card and only the named trait matters — if the challenger is correct they collect the whole spicy stack facedown as points, otherwise the challenger draws 2 cards and play continues with a new spicy stack. (Rulebook p.4).

You must announce aloud when you play your last card; if you forget you must take the card back into your hand and pass (draw 1). If your last card is not challenged or you win a challenge on it you collect a trophy (trophy effects and endgame triggers described). (Rulebook p.5).

Wilds represent either all numbers or all spices, but they are always considered wrong if challenged for the trait they don’t explicitly show — treat them according to the challenged trait when resolving the challenge. (Rulebook p.4).