Drag to arrange
Permutation: Order Matters
Arrange exactly 3 aliens on the podium. Who gets 1st, 2nd, and 3rd place makes a difference!
{{ slot.emoji }}
{{ 5 - idx }} choices
{{ idx === 0 ? '1st' : idx === 1 ? '2nd' : '3rd' }}
{{ alien.emoji }}
Tap to mix
Combination: Order Doesn't Matter
Pick exactly 3 fruits for a smoothie. The order you throw them in doesn't change the flavor!
Blender Bowl
{{ f.emoji }}
Smoothie Ready! 🥤
Mixing {{ s2.selected.map(f=>f.emoji).join(', ') }} is the same as {{ [...s2.selected].reverse().map(f=>f.emoji).join(', ') }}!
Tap to merge
Removing Duplicates
These 6 ordered permutations all contain the same items. Tap all 6 to merge them into 1 unordered combination!
{
{{ s3.items.join('') }}
}
Slide to unlock
The Formula Vault
Adjust the formula, Pool (n), and Picks (r) to crack the code. You need exactly {{ s4.target }} possibilities!
{{ s4.unlocked ? 'lock_open' : 'lock' }}
{{ s4CurrentValue }}
Target: {{ s4.target }}
🏆
Master of Arrangements!
You've conquered Permutations (where order matters) and Combinations (where it's just about the group).
🔢
Permutations P(n,r)
Arranging books, race finishes, passwords.
🥗
Combinations C(n,r)
Committees, pizza toppings, card hands.