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Download on Google Play- Separate the deck by suit: one player gets Clubs, the other gets Spades.
- Shuffle the Diamonds face-down as the prize pile; Hearts are not used.
- Reveal the top diamond as the prize.
- Both players secretly choose one hand card and reveal simultaneously.
- Higher bid wins the diamond; ties discard it.
- Bid cards are discarded regardless of outcome.
- Diamonds are worth face value (Ace=1 through King=13, total 91 points).
- Player with more than 45.5 points wins.
Rules
Gops is a card game of pure strategy with zero luck. Players simultaneously bid for prize cards using cards from their hand, making it a fascinating exercise in psychology and game theory.
Objective
Win the most points by bidding for diamond cards (worth their face value) using cards from your hand.
Setup
- Players: 2 players (expandable to 3-4).
- Deck: Standard 52-card deck, separated by suit.
- Distribution: One player gets all Clubs, the other all Spades. Diamonds are the prize pile (shuffled). Hearts are not used.
Gameplay
- Prize Reveal: Turn up the top diamond card as the prize.
- Simultaneous Bid: Both players secretly choose one card from their hand and reveal simultaneously.
- Winning the Prize: The higher bid wins the diamond. If tied, the diamond is discarded (or carried over to the next round).
- Card Removal: Bid cards are discarded regardless of outcome — each card can only be used once.
- Continue: Reveal the next diamond and bid again. Play through all 13 diamonds.
Scoring
Count the face values of diamonds won (Ace=1 through King=13). The 91 total points are split; whoever exceeds 45.5 wins.
Tips and Strategies
- Save your high cards for high-value prizes, but predictability is a weakness.
- Sometimes winning a cheap diamond with a high bid is worth it to force your opponent to waste a high card later.
- Reading your opponent's bidding patterns is the entire game.
Tips & Strategy
The challenge is not knowing which card to play in isolation, but predicting what your opponent will play and responding accordingly.
The mathematically optimal strategy involves randomization, but against human opponents, exploiting patterns and biases is usually more effective.
Trivia & Fun Facts
Gops has been analyzed extensively by mathematicians and game theorists. The optimal strategy involves randomized mixed strategies, similar to rock-paper-scissors.
In Gops, what happens when both players bid the same value card?
History & Culture
Gops was created as a game theory exercise, demonstrating concepts like Nash equilibria and mixed strategies in an accessible card game format.
Gops is used in academic settings to teach game theory concepts and is beloved by mathematics and strategy enthusiasts.
Variations & House Rules
Multi-player Gops gives each player a different suit. Some versions reveal multiple prizes at once for simultaneous bidding.
For deeper play, reveal 2-3 diamonds at once and let the winner choose which to take. This adds a resource allocation dimension.
