ChessScroll vs ZugZwang

Your feed costs a move now. ChessScroll seals the apps that eat your evenings — Instagram, TikTok, YouTube, whichever you choose — behind a chess puzzle at your level. Solve it and you earn minutes of scroll. Fail it and the position waits. That's the whole app. That's the whole deal. THE DEAL 1 puzzle = minutes of scroll. You set the exchange rate. HOW IT WORKS 1. Seal your apps. Pick the ones that eat you. 2. Reach for one, and a puzzle appears instead. 3. Solve it. The app opens and your clock starts running. 4. Minutes run out mid-scroll? In chess we call that flagging. Solve another. WHY IT WORKS You already reach for your phone dozens of times a day. ChessScroll doesn't fight that urge — it reroutes it. Every reach becomes one tactic at your level: twenty to forty seconds, and a real fight. It's the training every coach prescribes and nobody actually does, attached to a habit you already have. TWO NUMBERS, FACING EACH OTHER — Your puzzle rating, climbing. — Your daily screen time, falling. Everything else is supporting cast. REAL PUZZLES, AT YOUR LEVEL Nearly fourteen thousand positions from real games, each one rated by the players who tried it before you, and served at your rating rather than under it, so the rating you build is earned. Works fully offline. From 400 to 2700, the puzzle fits. THE CLIMB Fourteen chapters, one for each master: Morphy, Anderssen, Steinitz, Lasker, Capablanca, Alekhine, Botvinnik, Nezhmetdinov, Tal, Petrosian, Spassky, Fischer, Karpov, Kasparov. Every six puzzles you solve lays a stone on their road, and the one you solved at midnight to get into Instagram counts the same as the one you chose to play. The road stops at twenty-eight of their own games, and every one you solve goes into your album as a card. You never have to open the tab for it to move. NO NEW ADDICTION Training sessions end by design. No infinite puzzle feed, no guilt notifications, no nagging. Paul Morphy said in 1859 that chess should never engross the mind. We're inclined to agree. PRIVACY Your app choices and screen-time data never leave your device — Apple's Screen Time framework enforces that by design. No account needed. MEMBERSHIP ChessScroll requires a membership: yearly with a 7-day free trial, or monthly. Subscriptions auto-renew until cancelled in Settings. Terms: https://chessscroll.com/terms — Privacy: https://chessscroll.com/privacy Earn your scroll.

Your apps stay blocked. A solved chess puzzle opens one of them for five minutes. ZugZwang turns the reflex of opening an app into a move you have to think about. Choose the apps, categories and websites that eat your day. They are blocked at once and stay blocked. When you open one, the block screen offers one way through: solve a chess puzzle. HOW IT WORKS • Pick what to block with Apple's Screen Time picker: apps, whole categories, websites. • Opening a blocked app shows the block screen. Tap "Solve chess puzzle". • Solve it and collect five minutes of that app, or of your whole list if you prefer. When the time is up, the block comes back on its own. • The first wrong move fails the puzzle. The solution then plays out on the board, and a failed puzzle never unlocks anything. A RATING THAT IS YOURS • Three puzzles during setup find your starting rating, from beginner to strong club player. • Every puzzle after that moves it, like an Elo puzzle rating. Puzzles are served around your level, so they stay hard enough to make you stop and think. • 20,000 rated puzzles: mates, tactics, endgames, promotions. • Endless puzzles on the Puzzles tab, with filters for kind and length. STRICT MODE With strict mode on, removing an app from the list or turning strict mode off needs a harder puzzle or a 24-hour wait. Adding to the list is always allowed. YOUR PHONE STAYS YOURS • You can always turn blocking off. • Your rating and progress are saved to your account (Sign in with Apple or Google), so they move with you to a new phone. • Which apps you block stays on your device. ZugZwang never learns their names. • No ads. SUBSCRIPTION ZugZwang Pro unlocks the whole app. Choose a monthly or a yearly subscription. The yearly plan starts with a 7-day free trial, and if you allow notifications you get a reminder two days before it ends. Payment is charged to your Apple Account when you confirm the purchase, or when the free trial ends. The subscription renews automatically unless it is cancelled at least 24 hours before the end of the current period, and your account is charged for the renewal within the 24 hours before the period ends. You can manage or cancel it at any time in your App Store account settings. Any unused part of a free trial is forfeited when you buy a subscription. Terms of Use: https://use-less.app/zugzwang/terms Privacy Policy: https://use-less.app/zugzwang/privacy Puzzles come from the Lichess open puzzle database (CC0).