# Sharp Arena: Checkers & Dots — 4 rivals and a daily challenge > 4 rivals and a daily challenge (iPhone/iPad app by Fernando Santiago da Silva.) - Source: https://appshunter.io/ios/app/sharp-arena-checkers-and-dots/id6790198320 (this page in markdown: same URL + `.md`) - Developer: [Fernando Santiago da Silva](https://appshunter.io/developer/6790198322) - Category: Games, Board, Puzzle - Price: Free - Age rating: 12+ - Requires: iOS 15.0 · 96 MB - Languages: American English, European Portuguese, European Spanish - Released: 2026-08-04 - Data updated: 2026-10-15 ## What is Sharp Arena? Welcome to Sharp Arena! Sharp Arena is a home for thinking games - the kind you learn in a minute and spend months trying to master. Three games are open, and every day there is a new challenge waiting for you. THE DAILY CHALLENGE Every day, a new Checkers or Dots and Boxes position, a goal to reach and a rival across the table. "Capture 2 pieces in a single move, within 8 moves, against Pita": it sounds simple, until you try. The better your solution, the more XP it earns. Once you solve it, see where you landed on the daily board, watch the replay of everyone else who solved it, and react to their solutions. The challenge arrives over the internet and is saved on your device: you can solve it with no signal at all, and your result is sent once you are back online. CHECKERS (DRAUGHTS) Four rule sets in one app: Brazilian, Portuguese, Anglo-American checkers and the informal "house rules" everyone grew up with. Forced captures, a king that flies down the diagonal, and a rules guide built into the game so nobody argues. TIC TAC TOE The classic you know, with one difference: this opponent doesn't slip by accident. Close the line before it does - if you can. DOTS AND BOXES Connect the dots, close more boxes than your opponent, and take over the board. Simple to learn, genuinely treacherous. FOUR RIVALS, AND EACH ONE PLAYS DIFFERENTLY They aren't the same opponent under four names: each has its own pace, style and patience. • Cacau, the laid-back capybara - she lets you win, and doesn't hide it • Pita, the clever fox - from here on you need to pay attention • Tex, the stubborn badger - rarely loses, and makes you earn every point • Magno, the ruthless owl - the final test. Very few have ever beaten him. POWERS FOR WHEN THE MATCH GETS TIGHT In Checkers and Dots and Boxes, against the CPU, Best move shows the strongest move and Undo move takes back a mistake. In the daily challenge, the Hint gives you a clue before it gives away the move. Each use is unlocked by a short ad, and no match ever needs one to be played to the end. BUILT TO PLAY ANYWHERE • All three games work 100% offline - on the bus, on a plane, in a lift, with no signal at all • Quick matches: a game of Tic Tac Toe fits in a queue • Local 2-player mode to challenge the person next to you • No sign-up required: play as a guest AND IF YOU WANT TO GET SERIOUS • Experience (XP) and levels that rise as you play better, not just more • Rankings to compare yourself with other players, and a fresh board for every challenge • A streak that follows the days in a row you've played • Achievements for every game, plus the challenge ones that count the days you solved • Light ("paper") and dark ("felt") themes, and three languages NO TRICKS Your opponents don't cheat and can't see your future moves. They think for real, on the other side of the table - which is exactly why beating Magno means something. For the curious: the intelligence playing against you runs entirely inside your device. None of its moves is decided on a server - that's why the games work with no internet. Sharp Arena is free, and three games are only the beginning. Download now and find out how far you get. ## Is Sharp Arena safe? Not enough ratings yet to assess Sharp Arena. ## Is Sharp Arena legit? Sharp Arena: Checkers & Dots has limited verification signals. The AppsHunter Legitimacy Score for Sharp Arena is 58 out of 100 points across 7 verification signals from App Store and developer data. ## Version history (last 5 releases) ### 1.3.1 — 2026-10-12 THE DAILY CHALLENGE HAS ARRIVED Every day, a new challenge: a Checkers or Dots and Boxes position, a goal to reach and one of the four rivals across the table. "Capture 2 pieces in a single move, within 8 moves, against Pita" is one of them. Everyone gets the same challenge on the same day. THE BETTER, THE MORE XP The challenge is worth XP, and your solution decides how much: fewer attempts and fewer hints are worth more. You can try again as many times as you like. THE DAILY BOARD Once you solve it, see where you stand among everyone who solved the same challenge, watch the replay of each solution and react to it with a tap. To appear on the board and react, sign in with your account; as a guest you can play and see everything. WHO REACTED TO YOU The next day, at noon, a notification tells you how many people reacted to your solution. You can turn it off in Notifications. WORKS WITH NO SIGNAL The app saves the challenge as soon as it arrives. With no internet you solve it all the same, and your result is sent once you are back online. POWERS IN THE MATCH In Checkers and Dots and Boxes, against the CPU, Best move shows the strongest move, and Undo move, which used to be Checkers only, has reached Dots and Boxes. In the daily challenge, the Hint gives you a clue and, if you want, the move. Each use is unlocked by a short ad - and no match ever needs one. SIX CHALLENGE ACHIEVEMENTS From your first solved challenge to your hundredth, plus the ones that ask for a whole week and a whole month. ALSO IN THIS VERSION - Home now opens with the challenge, shows the games side by side and has a tab just for the challenge - Dots and Boxes achievements got a pair: winning without any power earns the "with grit" version - Your Profile shows how many challenges you have solved - Wins for each game are now counted correctly when you switch devices - Fixes and polish across the Arena ### 1.3.0 — 2026-10-10 THE DAILY CHALLENGE HAS ARRIVED Every day, a new challenge: a Checkers or Dots and Boxes position, a goal to reach and one of the four rivals across the table. "Capture 2 pieces in a single move, within 8 moves, against Pita" is one of them. Everyone gets the same challenge on the same day. THE BETTER, THE MORE XP The challenge is worth XP, and your solution decides how much: fewer attempts and fewer hints are worth more. You can try again as many times as you like. THE DAILY BOARD Once you solve it, see where you stand among everyone who solved the same challenge, watch the replay of each solution and react to it with a tap. To appear on the board and react, sign in with your account; as a guest you can play and see everything. WHO REACTED TO YOU The next day, at noon, a notification tells you how many people reacted to your solution. You can turn it off in Notifications. WORKS WITH NO SIGNAL The app saves the challenge as soon as it arrives. With no internet you solve it all the same, and your result is sent once you are back online. POWERS IN THE MATCH In Checkers and Dots and Boxes, against the CPU, Best move shows the strongest move, and Undo move, which used to be Checkers only, has reached Dots and Boxes. In the daily challenge, the Hint gives you a clue and, if you want, the move. Each use is unlocked by a short ad - and no match ever needs one. SIX CHALLENGE ACHIEVEMENTS From your first solved challenge to your hundredth, plus the ones that ask for a whole week and a whole month. ALSO IN THIS VERSION - Home now opens with the challenge, shows the games side by side and has a tab just for the challenge - Dots and Boxes achievements got a pair: winning without any power earns the "with grit" version - Your Profile shows how many challenges you have solved - Wins for each game are now counted correctly when you switch devices - Fixes and polish across the Arena ### 1.2.0 — 2026-09-03 CHECKERS HAS ARRIVED The third game joins the house, with the same four rivals you already know - and with the board that starts more rule arguments than any other. FOUR RULE SETS, NOT ONE Brazilian, Portuguese, Anglo-American checkers and the informal house rules every family plays differently. They genuinely differ: what is compulsory in one is a choice in another, and the king does not always fly. You pick before the match starts. A RULES GUIDE INSIDE THE GAME Every rule set ships with a guide to ITS own rules, with diagrams. No more table arguments about forced captures, huffing, or what a king may do. TAKE BACK A MOVE Made a blunder and saw it straight away? Roll the match back and play it again. A timeline shows the moves of the match, and you choose how far back to go. Each rival grants a different number: Cacau is generous, Magno barely forgives. Each take-back is unlocked by a short ad - and no match ever needs one to be played to the end. MULTIPLE CAPTURES, STEP BY STEP When one piece takes three at once, the board walks the whole path instead of teleporting the piece. That is how you learn not to fall for it again. And every captured piece stacks beside the board, in plain sight, so you always know who is ahead. FOUR RIVALS, NONE OF THEM IN THE CLOUD Cacau, Pita, Tex and Magno think inside your device, with no internet at all. Magno also consults an endgame database that ships with the app: when few pieces are left, he does not estimate - he knows. ALSO IN THIS VERSION - Tic-Tac-Toe got the "?" rules button on its setup screen, which only Dots and Boxes had - The achievements that count consecutive days arrive on time again - Home shows the top of the third card right away, without waiting for the ad - The achievements grid and the Profile screen are better spaced - The app now cleans up its temporary files on its own, and takes less space on your device - Fixes and polish across the Arena ### 1.1.1 — 2026-08-19 YOUR PROGRESS, RIGHT AWAY The Arena now opens with your XP, your flame and your achievements already on screen. On a slow connection you used to wait a moment to see your own progress; now it comes straight from the device. DEDICATION ACHIEVEMENTS UP TO DATE "10 Days in the Arena" and its siblings now recognize the days you have played — including the ones before this version. If you had already earned the achievement, it arrives in your next match. TIC-TAC-TOE RULES ONE TAP AWAY The Tic-Tac-Toe selection screen gained the "?" that Dots and Boxes already had. The rules are right there, without leaving the screen. ALSO IN THIS VERSION - More accurate XP counting - The app copes better with unstable connections ### 1.1.0 — 2026-08-17 TIC TAC TOE HAS ARRIVED A second game joins the house, with the same four rivals you already know. Magno is still undefeated, now across two boards. EVERY RIVAL THINKS IN THEIR OWN WAY Before answering, your opponent takes a moment. Cacau weighs every move; Magno decides in a blink. Moves no longer appear the instant you tap. THE SAME FINISH ACROSS THE ARENA The end-of-match, rival-picking and two-player screens now follow the same design throughout the house. Only what genuinely belongs to each game differs. MORE COMFORTABLE TO USE - Bigger, clearer boards on the home screen - The app stays in portrait - A fresh chance to turn notifications on, with a direct path to your device settings - The keyboard closes when you tap outside a field FIXES - Old achievements are no longer offered again to players who already had them - Achievement celebrations no longer go unnoticed - Signed-in players show their own name instead of "Guest" - Game descriptions on the home screen are no longer cut off ## Apps similar to Sharp Arena | App | Rating | Price | Category | | --- | --- | --- | --- | | [Mellow Sudoku](https://appshunter.io/ios/app/mellow-sudoku/id6811995655) | — | Free | Games | | [Marble Mania!](https://appshunter.io/ios/app/marble-mania/id6795887930) | — | Free | Games | | [Sand Block Puzzle Blast Game](https://appshunter.io/ios/app/sand-block-puzzle-blast-game/id6748876976) | — | Free | Games | | [Fun Offline: No Internet Games](https://appshunter.io/ios/app/fun-offline-no-internet-games/id6630377264) | — | Free | Games | | [™ Sudoku](https://appshunter.io/ios/app/sudoku/id1387281887) | 4.4 (121) | Free | Games | | [Spanish Damas](https://appshunter.io/ios/app/spanish-damas/id1116717315) | 4.6 (50) | Free | Games | --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-10-15.*