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Odds and Evens, also known as Morra, is a simple 2-player game that dates back to the Roman Empire. [1] X Research source It’s a great activity to pass the time on a long car ride or rainy day. Since Odds and Even is based entirely on luck, anyone with basic math skills can join in on the fun. Invite a friend or family member and see if the “odds” are in your favor!
Steps
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Announce to your opponent that you want to represent “odds” or “evens.” Talk with the other player and pick a “side” to represent. This process is very similar to “heads” or “tails.” There is no advantage to either of them, so you can just pick what you want. [2] X Research source
- There isn’t a “youngest picks first” rule to this game. Just try to agree on who will represent each side!
- For example, if you decide you are "evens," your opponent has to be "odds."
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Choose a number of rounds to play. Odds and Evens is a point-based game, so you need to decide a game format ahead of time. Be sure to agree on a total number of rounds so you can accurately keep track of how many points each player has. [3] X Research source
- For instance, if you’d like to play a longer game, have the game be 20 rounds. A shorter game might be 3-5 rounds.
- It may help to use a piece of scrap paper to keep track of each round.
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Count to 3 with the other player while keeping your hands hidden. There’s no game timer in Odds and Evens, so you and the other player have to keep the game going. As you count, pick a number of fingers between 1 and 5 to hold out in your hand, which you can display after counting to 3. Make sure your hands are hidden so your opponent can’t see what number you’re holding up. [4] X Research source
- You don’t have to yell out a guess while playing Odds and Evens, but this can add a fun dimension to the game.
Alternative for Advanced Players
Guess out loud what the total number of fingers will be. Offer a guess after counting to 3. Yell out the number before you and your opponent reveal your hands, so the game can be as fair as possible. Keep in mind that your guess needs to be between 2 and 10, since both players can hold up to 5 fingers. [5] X Research source
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Hold up a random number of fingers on 1 hand. Reveal your hand to show how many fingers you’re holding up. You can’t change your number after counting to 3 and yelling a guess, so be really certain before holding out your hand. [6] X Research source
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Count the total number of fingers for each player to determine the winner. Count the number of fingers both you and your opponent are holding out. If the total number is odd, then the player representing “odds” wins a point for the round. If the number is “even,” then the “evens” player wins. [7] X Research source
- For instance, if you hold out 4 fingers and the other player holds out 3 fingers, the total would be 7. In this case, the winner of the round would be the “odds” player.
- Don’t be discouraged if you don’t win the round—there’s plenty of time to catch up!
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Award 1 point to the winner of each round. Use a score sheet to keep track of the overall winner for each round. Mark down 2 columns for both players, then write down the score for the round. [8] X Research source
Alternative Scoring Option
You can also award points based on the total sum of the round. For instance, if you were representing “Evens” and the total sum of the round was 8, you’d get 8 points added to your score. [9] X Research source
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Give 1 point to whoever guesses the correct number. If you’re playing while yelling out the guess, add 1 point to the player’s score who accurately guesses the sum. If both players guess to correct number, then they both get a bonus point. [10] X Research source
- Players have to yell the exact sum to get the bonus point. For instance, if the total sum was 9 and a player guessed 8, then they wouldn’t get the point.
- Don’t worry about this if you’re playing a simple version of the game that doesn’t involve verbal guessing.
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Declare a winner after you’ve gone through the rounds. Tally up the total number of points in each column, depending on the scoring method that you used. Double-check the results, then announce if the “odds” or “evens” player won the game! [11] X Research source
Community Q&A
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QuestionWhy isn’t ZERO fingers included in the game? The score keeping would be between 0-10 instead of 2-10. You should be able to throw out zero fingers.AnirudhCommunity AnswerThe zero is included in the game called "duck" where you need to make a fist bump but 90 degree clockwise.
Video
Tips
- If you’re yelling out a guess for the round, you’ll probably have more luck if you shout out a higher number. [12] X Research sourceThanks
- The “odds” player usually has a better chance of winning, since “2” and “10” aren’t likely to show up in a round. [13] X Research sourceThanks
References
- ↑ http://www.eprisner.de/MAT109/AnalysisMorra.html
- ↑ https://healthy.uwaterloo.ca/museum/VirtualExhibits/Brueghel/odds.html
- ↑ https://www.quantamagazine.org/solution-to-game-theory-and-evolution-puzzle-20171208/
- ↑ https://healthy.uwaterloo.ca/museum/VirtualExhibits/Brueghel/odds.html
- ↑ http://www.eprisner.de/MAT109/AnalysisMorra.html
- ↑ http://www.eprisner.de/MAT109/AnalysisMorra.html
- ↑ https://healthy.uwaterloo.ca/museum/VirtualExhibits/Brueghel/odds.html
- ↑ http://www.eprisner.de/MAT109/AnalysisMorra.html
- ↑ https://www.quantamagazine.org/solution-to-game-theory-and-evolution-puzzle-20171208/
About This Article
Odds and Evens is an easy 2-player game where players try to score the most points by winning as either odds or evens. To play, first agree on how many rounds you want to do. For a short game, try 3-5 rounds. For a longer game, do 10-20 rounds. Then, decide which one of you will be odds and which one will be evens. It doesn’t matter who is who—the winner is always random! Once you've chosen, both of you should put one hand behind your backs and count to 3. On 3, pick a random number of fingers to hold up and throw out your hands. Then, add up the total number of fingers between both of your hands. If the number is even, the even player gets 1 point for that round. If the number is odd, the odd player gets 1 point. Whoever has the most points at the end of all the rounds wins the game! For a more advanced version of Odds and Evens, have each player yell out what they think the total will be for each round as they’re throwing their hands. If a player guesses correctly, they get 1 bonus point for that round.
Reader Success Stories
- "I did not know how to play odds or evens, so when my friend started playing this game I searched and found this. Thanks a lot wikiHow." ..." more
