Splendor

Shuffle development decks separately and reveal 4 cards per level. Reveal nobles equal to player count plus 1. Use 4/5/7 gems of each color with 2/3/4 players, always retaining 5 gold. The youngest player starts; play clockwise.

Choose exactly one action per turn: take different gems, take two matching gems, reserve one card, or buy one card. Reserving and buying cannot be combined on the same turn.

The different-color action normally takes 3 gems, never gold. If fewer than three colors are available, take 2 or even 1 different-colored gems.

Taking two matching gems requires at least 4 of that color in the supply before taking them. This action cannot take gold.

Reserve one face-up card or the hidden top card of any level deck, and take 1 gold if available. Hold at most 3 reserved cards; you cannot discard them and can remove one from your hand only by buying it.

Buy one face-up card or one of your reserved cards. Apply permanent matching-color discounts from purchased cards, then pay remaining tokens. Gold can replace any gem; return payment to the supply.

Each purchased card provides a top-right bonus discount of 1 matching gem on later purchases, without discarding the card. Sufficient bonuses can make a purchase free, but it still uses your purchase action and never produces change in tokens.

Immediately replace a face-up card bought or reserved from the matching deck; leave gaps when that deck runs out. Tokens remain public. End your turn with at most 10 tokens including gold, returning excess tokens of your choice.

At turn end, check nobles using only purchased-card bonuses of the required colors and quantities, never tokens. A visit uses no action; acquire at most 1 noble per turn, choosing if several qualify. Each noble scores 3 points.

Reaching at least 15 points at turn end triggers the end. Finish the current round so all players have equal turns. Highest total from purchased cards and nobles wins; ties favor fewer purchased development cards, then share victory.