+3 vs Rivalock

Your opponent picks a secret 4-digit code. You pick yours. First one to crack the other's code wins. Every guess comes back as a score — nothing else. +2-1 means two of your digits are correct and in the right place, and one more is in the code but sitting in the wrong spot. That's all you get. The rest is deduction. HOW IT WORKS * Both codes are 4 digits, no digit repeats, no leading zero * Guess, read the score, eliminate, repeat * No luck, no hidden mechanics — the same information is available to both players, every single turn RANKED 1v1 Get matched against a real opponent in seconds and play for ELO. Win in fewer guesses and you climb faster. Track your rating, your streak and your place on the global leaderboard. PLAY WITH FRIENDS Share a link, your friend taps it, the duel starts. No account hunting, no friend codes. Add the people you enjoy playing and rematch them any time. SOLO PRACTICE Play the bot whenever you want a game with no stakes and no waiting. It thinks like a strong human opponent, so beating it actually means something. PUZZLE MODE Hand-built stages you clear in order, each one solvable by pure deduction from the clues in front of you. No bot, no timer, no analysis helper — just you and the logic. BUILT-IN ANALYSIS In duels and solo practice, the keypad keeps score for you: digits your guesses have already proven to be in the code light up, digits you have ruled out go dark. It only ever states what your own guesses have logically forced — it never leaks the answer. On for everyone, no setting to fiddle with. NO ADS Not one. No banners, no interstitials, no rewarded videos — for free players and premium players alike. Nothing interrupts a duel. START IN ONE TAP Play as a guest immediately. No email, no signup wall. Save your progress with Apple or Google later, whenever you feel like it. PREMIUM Free players get 5 online matches a day. Premium removes the daily limit — play as much as you want. Solo play, puzzles and the tutorial are always free and unlimited. Premium is an auto-renewing subscription, available as $2.99 per week, $7.99 per month or $39.99 per year. Payment is charged to your Apple ID account at confirmation of purchase. The subscription renews automatically at the same price unless it is cancelled at least 24 hours before the end of the current period, and your account is charged for renewal within 24 hours before the period ends. You can manage or cancel your subscription in your App Store account settings after purchase. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://plus3minus1.lafon10.com/privacy Simple rules. Very hard to master. Crack the code.

THE GAME IS ON. Prove to your friends you're better than them. Show the world who the real puzzle king is. You love escape rooms? Open 40 of them, alone, offline. NO AD WILL EVER INTERRUPT YOU Never after a duel. Never at the end of a room. Never between two screens. The only ads in the game are the ones you go looking for yourself : a hint when a room resists, or extra coins. You can finish the game without watching a single one. CHALLENGE YOUR FRIENDS 1 VS 1 Three rounds, 3 different puzzles, and the first to find the answer takes the round. Answer fast and wrong and you hand the point to the other. Live, face to face. Or take turns : you play your three rounds and go to bed, they play the same ones whenever suits them, tonight or in three days. Seven days to take it up, and a notification to tell them you are waiting. UP TO SIX IN THE ARENA Open a room, send the code on WhatsApp, Messenger or whatever you use, and play three, four, five or six on the same puzzles. First to two points. A wrong answer gives nothing to anyone : it only locks your keypad for the round. PUT COINS ON YOUR WIN A friendly challenge can carry a stake. You both agree on the amount before the first round, and the winner takes it all. THE SAME CHALLENGE, EVERY DAY, AGAINST YOUR FRIENDS One puzzle a day, the same for everyone. The board shows who solved it, how fast, and who failed. RANKED MODE : SHOW THE WORLD WHO THE PUZZLE KING IS Within seconds, someone is in front of you. Easy, Normal or Expert : you will never face anyone who picked a different tier. Win and you climb. Lose and you drop, but for the puzzle king, losing is not up for discussion. World leaderboard, friends leaderboard, and your head to head with each of them. The week closes every Monday with coins for the podium. FORTY ROOMS, ALONE, OFFLINE The other half of the game. A man lives his last ordinary day again. The same flat, the same office, the same station, but everything is empty, cold and locked, and each place asks him to finish something before it lets him through. Forty rooms, one screen each. Nobody in front of you, no clock. Just you and a locked door. No connection needed. HARD, NEVER VAGUE A rank cut into notches. A folded veil that does not give the number of holes you expect. A path that must never cross itself twice. Almost no text : the drawing is the question. Over 500 hand written puzzles, and 27 families generated without end. You will never see the same one twice. YOU WILL NEVER BE STUCK FOR GOOD Three hints per room, from a nudge to the answer, and a fourth tier that clears the trial for you whatever happens. Stars depend on the hints you used, never on your speed. Take all the time you want. SURVIVAL : HOW LONG CAN YOU LAST? Puzzles keep coming and one mistake ends the run. Your score is how many you solved in a row. And you can also replay a friend's exact run, their puzzles in their order, with their time next to yours. ENDLESS PRACTICE, AND THE UNSOLVED NOTEBOOK Puzzles for as long as you want them, no score and no pressure. And every puzzle that beat you waits in the notebook, until the day you crack it. A SEASON EVERY MONTH Thirty reward tiers earned by playing : avatars, titles, duel backdrops. WEAR WHAT YOU WON A hundred avatars, 44 titles to earn, 14 duel backdrops. Enough to look like nobody else when you show up. Optional in-app purchases : the "Another World" expansion (ten of the forty rooms), coin packs, and the Rivalock+ subscription, cancel any time. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Wake up the Sherlock sleeping in you.