HamiLoop vs Parcel Patch

HamiLoop: Draw one loop. Pass through every square on the grid exactly once. That's the whole idea behind HamiLoop, and it's harder than it sounds. What looks like a simple rule turns into a real puzzle once the grid grows, and figuring out the right path can take real thought. Grid sizes vary a lot, so difficulty varies with them. Some puzzles are solved in a couple of moments, others take much longer and require some careful planning. With 150,000 preloaded levels, you can pick a size and difficulty that suits your mood, and a new difficult puzzle is added every day if you're after something tougher. There are no timers and no countdowns anywhere in the app, so every puzzle can be worked through at your own pace. Each puzzle is presented with clean, colorful visuals, though the colors are purely decorative and don't affect the solving itself. If you like tackling more than one thing at a time, you can keep several levels open in parallel, so an easier puzzle is always there when you want a break from a harder one. Alongside the daily challenge, an extra hard puzzle is released once a week for players looking for something tougher still. The core idea of the game is inspired by Hamiltonian cycles, a well known concept from graph theory, giving the puzzle a solid mathematical foundation beneath its simple rule.

Turn a few conveyor belts, press Send, and deliver every parcel to the exit that matches its shape. Parcel Patch is a calm logic puzzle for iPhone, played in portrait with one finger. CHANGE ONLY A FEW TILES Every level is a small sorting floor, at most 5 by 6 tiles, that is almost right. Belts with a rotate symbol turn a quarter turn clockwise with each tap; every other tile is fixed. The catch is the limit: each level lets you change only one to four belts, and a counter ("Changed 1/2 tiles") shows where you stand. Turn a belt back to where it started and it no longer counts. Undo and Reset level let you back out. When you press Send, all parcels set off together and move one tile at a time, so timing matters as much as direction. EVERY FAILURE HAS A REASON A run that goes wrong stops at the exact spot, marks it on the board and tells you why in one plain sentence: "There is no belt here." "Two parcels reached this spot together." "The parcels met head-on." "The parcel is going in circles." "This parcel needs the matching exit." There are no lives to lose. Adjust the layout and send again. 2,012 LEVELS, ONE IDEA AT A TIME Twelve hand-made starter levels teach the rules with circles and triangles. 2,000 more follow in chapters of 50. They bring in square parcels, three parcels at once, sorters (parcels with the sorter's mark follow the colored arrow, all others the gray one), diamond parcels and later four parcels together. Levels open in order, and any level you have cleared can be replayed. ENDLESS MODE Clear the twelve starter levels and Endless mode opens. Its levels come from the game's own generator, with no connection needed, and they never run out. Each one is checked by the game's own rules engine before you see it, so it can always be solved within its change limit. Endless mode is also where the newest pieces appear, one at a time: - Portals: a parcel that enters one door comes out of the matching door and follows that door's arrow. - Switches: the bright arrow shows where the next parcel goes, and it changes sides after each parcel. - Star and heart parcels, for six shapes in all. The first levels are gentle and the difficulty climbs from there, with a breather now and then. There are no lives or penalties, and your best level is kept in My records. DAILY CHALLENGE One level every day, changing at 00:00 UTC, the same for every player. Only the time you spend in the level counts. HINTS WHEN YOU WANT THEM The Hint button works in every mode and has three steps: a nudge in words, then one tile and the direction it should point, then the whole solution drawn on the board. Even then you turn the belts and press Send yourself. A clear made with a hint is not counted as a first-try clear, and a daily time that used a hint is never sent to the leaderboard. RECORDS AND GAME CENTER LEADERBOARDS My records keeps your own figures on the device, including levels cleared, first-try clears (everything delivered on the first Send, without hints), fastest daily and Endless best. Game Center is optional. If your iPhone is signed in to it, the game connects when it opens, with four leaderboards: Daily challenge time, Levels cleared, First-try clears and Endless best. Only those four scores are sent. DETAILS - Every parcel and exit shows its shape as well as its color, and portal pairs differ by pattern as well as color. - English and Chinese, switchable in Settings. - Music and sound effects have separate switches and volume sliders, and haptics can be turned off. - Reduce motion follows your system setting or can be set in the app. - "Export my game data" shows your progress, records and the game's local event log as text you can share or copy. PLAY IN PEACE No account, no ads, no in-app purchases and no tracking. The whole game works offline: levels are in the app or generated on your device, and your progress stays on your iPhone. Only the optional Game Center leaderboards and the About links need a connection.