15 ○ 9 ×
15 ○ 9 × at your next game night?
Add 15 ○ 9 × to your collection, let your group vote on what to play, and keep track of winners and scores. Free, no credit card.
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- Designer Susumu Kawasaki
- Publisher Kawasaki Factory
- Illustration Susumu Kawasaki
The description, FAQ and assessments for this game were generated with the help of artificial intelligence from the game data and reviewed editorially. Spotted a mistake? Let us know.
What to Expect
In 15 ○ 9 ×, two players try to deduce the opponent's pairs of cards by marking them as matching (○) or not (×). Each player forms three pairs from ten random cards, keeping four in hand. Players take turns guessing or revealing one card for clues, balancing information gain and delaying guesses.
Who Is This Game For?
This game is for two players aged 10 and up who enjoy deduction. With a short 10-minute playtime, it's a light, accessible game suitable for quick sessions without prior experience.
How It Works
Players receive ten cards from a deck of 15 ○ and 9 × cards, forming three pairs and holding four cards. They try to identify if opponent pairs match by playing ○ or × markers. Instead of guessing, a player may reveal a card from their own pair to gain information but delays guessing.
What Makes It Special
Designed by Susumu Kawasaki, this abstract deduction game stands out with its simple yet strategic blend of guessing and information revealing. It focuses solely on two-player deduction without additional mechanics or awards.
Pro
- Short playtime around 10 minutes
- Clear deduction mechanic without complex rules
- Designed specifically for two players
- Easy to learn for casual players
Contra
- No solo mode available
- Limited strictly to two players
- Abstract theme without storytelling
Setting & atmosphere
The game has an abstract theme centered on deducing card pairs, without a narrative or specific world setting.
Tips for beginners
Focus on which cards you reveal and use information strategically to improve your guessing accuracy.
Frequently asked questions
Can I play this solo?
No, 15 ○ 9 × is strictly a two-player game.
How long does a game really take?
Games last about 10 minutes, perfect for quick sessions.
What prior experience do I need?
The game is easy to pick up with no special prior knowledge required.
How does this compare to similar games?
It focuses solely on deduction with a simple card-pair mechanic, without added complexity.
Is this suitable for families?
Suitable for ages 10+, good for families who enjoy short deduction card games.
What mechanic makes it special?
Its blend of deduction and selective card revealing distinguishes the gameplay.
Fazit
15 ○ 9 × offers quick deduction gameplay for two, ideal for short plays. Recommended for fans of simple, tactical card games with minimal setup.
15 ○ 9 × at your next game night?
Add 15 ○ 9 × to your collection, let your group vote on what to play, and keep track of winners and scores. Free, no credit card.
Add 15 ○ 9 × to my collectionAlready have an account? Log in