Blackjack for math lovers

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In 21X you win just like Blackjack - by getting to 21...

...unlike Blackjack, every card is a different formula.
 Find the X value that makes your hand score 21 and you win!

Read more about the game at:

FEATURES:

  • Can be learned in less than 1 minute, plays in 5 minutes
  • Compact - take it anywhere
  • Adjustable difficulty for any group with easy, medium and hard cards

PERFECT FOR:

  • A stocking-filler gift for a mathy friend or family member
  • Puzzle lovers looking to stretch their brains
  • Homeschoolers and teachers looking to make algebra fun

REVIEWS:

"I have loved playing with my son (nine). He loved the concept and trying to work out the best way to get as close to 21 as possible."
- What Board Game

"21X is a totally honest, overt love letter to mathematics... Using blackjack as the basis for this game is such a brilliant idea."
- Spielbar

"our facility with algebraic formulae has sharpened noticeably. This is a puzzle game then that maths teachers might especially welcome for playing with pupils."
- Board's Eye View

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Algebra has never been so fun... we're serious!

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© Naylor Games Ltd. 2025

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