# Bridge - River Crossing IQ > Puzzle game requiring players to cross all bridges once without repetition. (iPhone/iPad app by Ngan Ly.) - Source: https://appshunter.io/ios/app/bridge-river-crossing-iq/id1136652096 (this page in markdown: same URL + `.md`) - Developer: [Ngan Ly](https://appshunter.io/developer/1136652095) - Category: Games, Puzzle - Price: Free - Age rating: 4+ - Requires: iOS 7.0 · 15 MB - Languages: English, Vietnamese - Released: 2016-07-29 - Data updated: 2026-06-04 - Monetization: free - User reviews in markdown: https://appshunter.io/ios/app/bridge-river-crossing-iq/id1136652096/reviews.md ## What is Bridge? The rules are simple. The game isn't. You're visiting towns full of rivers. The rivers form islands with bridges connecting them. To beat the game just cross every bridge once and only once. Each town challenges and entertains you with twists, turns, and a little man walking across bridges. The towns start simple and add more and more with houses to visit, colored bridges, tolls, and subways. Bridge - River Crossing IQ comes with 80 towns and more on the way. The towns start off easy, build slowly, and end with a few tough ones. Bridge - River Crossing IQ is a fun way to exercise your brain and perfect way to pass the time in boring meetings or the train ride home. Bridge - River Crossing IQ The city of Konigsberg in Prussia (now Kaliningrad, Russia) was built around two rivers with seven bridges. For years the residents tried to cross each bridge without crossing any of them more than once. Leonhard Euler proved that it was impossible to cross all the bridges without repeating and laid the foundation for graph theory and modern topology at the same time. This project is an iPad and iPhone game based on those famous bridges. Each level presents a puzzle with bridges to cross, houses to visit, and sometimes coins to collect. Have fun! ## Key features - Cross each bridge once - Increasing puzzle complexity - Towns with unique challenges - Elements like houses and tolls - Brain exercise - Pass time effectively ## Recent user reviews (2 of 2) All indexed reviews: https://appshunter.io/ios/app/bridge-river-crossing-iq/id1136652096/reviews.md ### 5/5 — Game hay *2016-08-30, version 1.2* Hay nhung kho qua ### 5/5 — Good game *2016-07-26, version 1.0* Good game for your brain! ## Frequently asked questions about Bridge ### What is the main objective of Bridge - River Crossing IQ? The main objective of Bridge - River Crossing IQ is to cross every bridge in each town exactly once without repeating any bridge. This is a classic puzzle challenge based on graph theory. ### Does Bridge - River Crossing IQ have ads? No, Bridge - River Crossing IQ does not contain advertisements. It is a completely ad-free experience for uninterrupted gameplay. ### What devices is Bridge - River Crossing IQ available on? Bridge - River Crossing IQ is available on iPhone, iPad, and iPod. It is designed for iOS devices. ### How challenging are the puzzles in Bridge - River Crossing IQ? The puzzles in Bridge - River Crossing IQ start simple and gradually increase in difficulty. New elements like houses, colored bridges, tolls, and subways are introduced to enhance the challenge. ### Is Bridge - River Crossing IQ suitable for children? Yes, Bridge - River Crossing IQ has an age rating of 4+, making it suitable for children. The puzzles are designed to be engaging and mentally stimulating for a wide age range. ### How often is Bridge - River Crossing IQ updated? Bridge - River Crossing IQ was last updated on August 17, 2016, with version 1.2. While the initial release was in 2016, the description mentions 'more on the way,' suggesting potential future updates. ### Can I play Bridge - River Crossing IQ offline? The description does not explicitly state whether Bridge - River Crossing IQ can be played offline. However, as a single-player puzzle game, it is likely playable without an internet connection. ### What is the historical inspiration for Bridge - River Crossing IQ? Bridge - River Crossing IQ is inspired by the famous Seven Bridges of Königsberg problem, a historical mathematical puzzle solved by Leonhard Euler, which laid the foundation for graph theory. ## Version history (last 3 releases) ### 1.2 — 2016-08-17 This app has been updated by Apple to display the Apple Watch app icon. Fix bugs. ### 1.1 — 2016-08-15 - Fix bugs. - Add Vietnamese. ### 1.0 — 2016-07-25 No release notes. ## Apps similar to Bridge | App | Rating | Price | Category | | --- | --- | --- | --- | | [Numeric Odyssey](https://appshunter.io/ios/app/numeric-odyssey/id6472152796) | — | Free | Games | | [Onet Online: Matching Game](https://appshunter.io/ios/app/onet-online-matching-game/id1550502141) | 4.5 (26) | Free | Games | | [Gold Train FRVR - Railway Maze](https://appshunter.io/ios/app/gold-train-frvr-railway-maze/id1414843409) | 4.5 (144) | Free | Games | | [Draw 2 Bridge: Puzzle Game](https://appshunter.io/ios/app/draw-2-bridge-puzzle-game/id6444823410) | 4.5 (1,485) | Free | Games | | [Brain Teaser+](https://appshunter.io/ios/app/brain-teaser-plus/id6443588041) | 1.0 (1) | Free | Games | | [Mind Match - 2 Player Games](https://appshunter.io/ios/app/mind-match-2-player-games/id6477334483) | — | Free | Games | ## More apps by Ngan Ly - [Tank Hero Classic](https://appshunter.io/ios/app/tank-hero-classic/id1147473463) - [ABC Mobile](https://appshunter.io/ios/app/abc-mobile/id1196845598) - [Gia Truyen Thao Nguyen](https://appshunter.io/ios/app/gia-truyen-thao-nguyen/id1462199488) - [Ngan Linh](https://appshunter.io/ios/app/ngan-linh/id1462615817) - [Alô Luật Sư](https://appshunter.io/ios/app/alo-luat-su/id1466743984) All apps by Ngan Ly: https://appshunter.io/developer/1136652095 ## Related topics [keystone crossing](https://appshunter.io/ios/topics/keystone-crossing) · [ngan ly](https://appshunter.io/ios/topics/ngan-ly) · [river crossing](https://appshunter.io/ios/topics/river-crossing) --- *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 2026-06-04.*