Twins

Twins has a sixty-card deck, with cards coming in six suits numbered 1-10; some cards have white numerals, while others have black numerals. In a round, each player receives eight cards from the deck, then can buy more from the pool; each player starts with 12 money. Each round lasts four turns, and on each turn players simultaneously reveal a pair of cards from their hand. Cards with the same numeral and same numeral color ("twins") outrank cards of the same numeral but different numeral color