ONE PHONE
Pass & Play
Sit side by side and pass the phone. Each of you hides a code while the other looks away, then you take turns dialling guesses.
How Pass & Play worksBLUFF & DEDUCTION
Crack their PIN first.
Can you crack your partner’s secret PIN before they crack yours?
How to play
Got you.
Wait… how?!
The game
Both partners hide a secret PIN, then take turns guessing the other's code. Right digits click into place, and the first to crack the other's PIN wins. Pin Bluff mixes deduction, bluffing and friendly competition in a game made for exactly two people.
Try it here
Play one duel right here against Juno. It's the app's own Love Locks screen; the only difference is that the website plays Juno instead of your partner.
Step by step
1Agree on the rules
Pick the code length, whether found digits stay locked, whether wrong-spot hints are on, and what the loser owes.

2Hide your PINs
Each of you sets a secret code. On one phone, the other person looks away while you type it.

3Dial a guess onto their lock
Your partner's code is a padlock with one wheel per digit. Roll the wheels to your guess and try it.

4Read the wheels
Right digit, right spot: the wheel clicks gold and stays put. Wrong digits shake and roll back. Use what you learned on the next guess.

5Open the lock first
The first to crack the other's PIN wins a title for how they played, and the loser signs an IOU.

You win by cracking your partner's PIN in fewer rounds than they need for yours. If you both crack each other in the same round, the game is a draw.
For two
Every round becomes a read on your partner: which code would they choose, how close are you, and who can keep a straight face when a digit clicks.
ONE PHONE
Sit side by side and pass the phone. Each of you hides a code while the other looks away, then you take turns dialling guesses.
How Pass & Play worksTWO PHONES
Each of you plays on your own phone, live. Guesses and clues update live on both phones, wherever you are.
Long-distance couple gamesStrategy
Birthdays, your anniversary and their door code are the first things a partner tries. The game even has a title for cracking one on the first guess.
That's the bluff. A date so obvious they rule it out can survive longer than a random number.
Digits can repeat, and most people guess four different ones. A code like 7 1 7 4 hides well.
Your first guesses should test as many new digits per spot as possible. Keep a digit only once it has clicked.
Wrong-spot hints make the first games friendlier. Turn them off when you both want a harder read.
House rules
You set these together before each game.
FAQ
Yes, it's the same family of code-breaking games, played head to head. Both of you hide a code at the same time and race to break the other's. With wrong-spot hints on, the clues work like Mastermind's.
Yes. Choose online play and each of you uses your own phone. Guesses and clues show up live on both screens.
Yes. A digit can appear more than once, and a repeated digit is a good way to slow your partner down.
Most games take a few minutes. Longer codes and hints switched off make them last longer.
Free to play
Download LoveYug for iPhone or Android.