[HN Gopher] Simon Tatham's Portable Puzzle Collection
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       Simon Tatham's Portable Puzzle Collection
        
       Author : sogen
       Score  : 174 points
       Date   : 2025-07-26 06:46 UTC (16 hours ago)
        
 (HTM) web link (www.chiark.greenend.org.uk)
 (TXT) w3m dump (www.chiark.greenend.org.uk)
        
       | 3036e4 wrote:
       | I installed that on both my computer and phone after someone
       | mentioned it in some HN comment a few months ago. On my phone it
       | has been the only game I have played in several years that wasn't
       | in an emulator (mostly DOSBox).
       | 
       | Also convinced my kids to install it on their phones, hoping that
       | it will distract them somewhat from the apps they otherwise use.
       | Not much success with that. I guess there isn't enough bling. If
       | it was full of animated coins and sound effects triggering on
       | every interaction it would probably work much better for
       | competing with normal app-driven rubbish mobile games.
        
         | glimshe wrote:
         | I wonder if they would be happy with modern graphics but no
         | twitchy bling. I mean, 3d shaded and colorful tiles. Kids these
         | days associate spartan graphics with old school/boring
         | gameplay.
        
           | sheiyei wrote:
           | A version with better UI for mobile could be super neat.
           | 
           | And I don't mean that it needs to be a Flutter app that
           | launches in 3 business days and eats battery like a horse,
           | just that it didn't look like it's from 2012. (Some of the UI
           | design elements are also frankly confusing)
        
       | ggm wrote:
       | I very much hope people link more like this here. My favourite
       | right now is the love solitaire, and jongmah
       | 
       | https://love2d.org/forums/viewtopic.php?t=95641
       | 
       | https://www.jongmah.com/
        
       | beefsack wrote:
       | I wonder how many thousands of hours I have put into this
       | wonderful collection. My kids play them too.
       | 
       | There's some jank relating to fractional scaling on Wayland
       | unfortunately, but I keep one monitor without scaling so when I
       | want to play I just launch the puzzles on that.
        
       | happa wrote:
       | For human-generated logic puzzles that you can solve in your
       | browser, I can recommend the following site:
       | 
       | https://puzsq.logicpuzzle.app
        
       | tecleandor wrote:
       | As a note, after some years of playing with this puzzles, I
       | recently discovered why its name sounded familiar to me... It's
       | Simon Tatham from PuTTY (the Windows SSH client).
        
       | pbh101 wrote:
       | Found this recently and have been loving it! The one that has
       | stuck the most is Keen but Galaxies is a close second.
        
       | NoboruWataya wrote:
       | Recommend the Android port as well, available on F-Droid:
       | https://chris.boyle.name/projects/android-puzzles/
        
       | ZeroGravitas wrote:
       | Mostly works nicely on black and white android e-readers too.
        
       | ofrzeta wrote:
       | related: https://www.janko.at/Raetsel/index.htm huge collection
       | of games and playable online (general desciptions are in German
       | only but the rules of every game are translated in English and
       | Japanese)
        
         | tangus wrote:
         | Also related: https://puzz.link/db/
        
           | Disposal8433 wrote:
           | And another one: https://www.brainbashers.com/puzzles.asp
        
       | MITSardine wrote:
       | I've had this on my phone for years, it's a great collection of
       | puzzles. I haven't tried them all (games on phones), but it's
       | certainly the best I have. No ads, no useless gamification, but
       | well polished and varied puzzles, and quite a bit of control over
       | the difficulty.
       | 
       | My favourite has to be "Keen", it's a sudoku-like where a grid
       | has to be filled with no repeated numbers on either columns or
       | rows, and arbitrarily shaped cells must be filled to satisfy an
       | arithmetic constraint like "sums to 7", "the product is 84" or
       | "one divided by the other is 3" (if sized two).
       | 
       | Towers is nice too, similar concept (re repetition), but the
       | constraints are now visibility ranges on the boundaries of the
       | grid, as you put down towers of varying height. I find it more
       | difficult.
       | 
       | Some of the games are more mechanical, where you can mindlessly
       | iterate to a solution step by step. Like "Net" (rotate pipes to
       | connect them all to the center). Towers takes some more guess
       | work, and I find Keen is there in the middle.
        
         | kybernetikos wrote:
         | Net can be done with reasoning rather than mindless iteration.
         | You start by locking in end points surrounded by other end
         | points except for one free space. if you have a straight line
         | that can connect two end points then you lock it in the other
         | orientation. If a line is locked next to a T pipe, the back of
         | the t pipe goes against the line. If a corner piece is next to
         | a locked pipe, you know that the side opposite the incoming
         | pipe is empty, so it could be the back of a T or the side of a
         | line piece, etc.
        
           | MITSardine wrote:
           | Yeah, that's what I meant. On the other hand, something like
           | Towers has you trying different configurations because
           | there's not always enough information to motivate the next
           | step.
        
             | MostlyStable wrote:
             | I haven't tried Towers, but I had thought that every game
             | in his collection was such that guessing was never
             | required. The logic/rules might not always be obvious, but
             | supposedly they are there.
        
               | MITSardine wrote:
               | I think there's still a unique solution but, on the
               | harder difficulties, you're given very little to work
               | with. (in Towers)
        
           | fsckboy wrote:
           | i only play Net (largest size or bigger, wrapping) using the
           | locks; I disconnect the surrounding pipes from the center so
           | nothing is lit up, and then start locking squares based on
           | their surroundings. some of them I can't even solve. I can
           | see the answer, but my head can't contain the logic necessary
           | to lock them down
        
         | Jigsy wrote:
         | I like Solo (Sudoku), but that's hard to play on my phone
         | sadly.
         | 
         | I end up doing hard modes of Flood and Signpost a lot, though.
        
       | V__ wrote:
       | The same puzzles can be played here with a more friendly UI:
       | https://medmunds.github.io/puzzles/
        
         | fsckboy wrote:
         | not exactly the same, the ux cleanup has dumbed some of them
         | down a bit
         | 
         | I play the original untangle on 600 or higher, that "friendly"
         | UI doesn't allow that
         | 
         | I play the original Dominosa 6-extreme but friendly doesn't
         | offer that either, unless it's set them all to extreme
         | 
         | the Net doesn't not allow custom sizes, and it's also broken
         | the mouse buttons, it only allows rotation in one direction
         | 
         | not going to look further into the vandalism
        
       | cbarrick wrote:
       | I discovered these as a child by just combing through the Ubuntu
       | package repositories looking for games.
       | 
       | These days, I play the Android port all the time. It's my go-to
       | to occupy my time on short flights.
        
       | insane_dreamer wrote:
       | Does anyone know of a collection of mini games like that with
       | available source code, and preferably in a more approachable
       | language than C? Thinking that something like this might be great
       | for getting my 9-year interested in coding using a non-visual
       | prog lang (so not Scratch).
        
         | glimshe wrote:
         | Teaching kids to program for over 40 years:
         | 
         | https://www.roug.org/retrocomputing/languages/basic/basicgam...
        
       | npteljes wrote:
       | I love this collection on my phone. It's among the first software
       | that I install to it. Alongside Simon's stuff, Gauguin is also a
       | favorite. It's a sudoku type of game, but with different shapes
       | and math instead of the basic sudoku rules. I love these when I
       | have some time to kill, and I don't want to look at the internet.
        
       | privatelypublic wrote:
       | I absolutely love Flood type games- but I want huge
       | maps(1000x1000 - 65535x65535). Alas, all of them also kill their
       | playability by wanting absurd money ($5, ha!) and/or flow
       | breaking ads.
        
       | merelysounds wrote:
       | If you're on iOS:
       | 
       | - Puzzles[1] - includes these games and more (sudoku, nonograms,
       | minesweeper, others).
       | 
       | - Nonoverse[2] - it's just nonograms, but built by hand (not
       | randomly generated); it's my app, inspired by the above.
       | 
       | [1]: https://apps.apple.com/app/puzzles-reloaded/id6504365885
       | 
       | [2]: https://apps.apple.com/app/nonoverse-nonogram-
       | puzzles/id6748...
        
         | zellyn wrote:
         | Oh nice! I play Loopy while listening to podcasts or sometimes
         | watching Netflix, and the bugs causing right edge to require
         | double long-hold and left edge to require fanatical precision
         | always drive me nuts, so this is very welcome!
         | 
         | Any way to change the yellow to something tamer, and reduce the
         | line widths slightly?
        
           | merelysounds wrote:
           | To clarify, only the second app is mine. I'm a fan of the
           | "Puzzles" and the original from the current HN discussion.
           | But I didn't like that the nonograms (a.k.a Pattern) were
           | random patterns and not pictures; so I built "Nonoverse" to
           | address that.
           | 
           | Unfortunately I don't know much about Loopy. If you want,
           | this could be your sign to build your own version :)
        
       | jannniii wrote:
       | Thanks for sharing! Awesome new time sinkhole for my phone...
        
       | haunter wrote:
       | I actually might want to port this to homebrew Switch... Good
       | summer project
        
       | patrickdavey wrote:
       | I love these puzzles. I find the cube rolling one just so hard to
       | get my head around!
        
         | fsckboy wrote:
         | I got really good at the spatial reasoning a few years ago (not
         | perfect though) but now I can't remember any of that and I'm
         | back to n00b again
        
       | wkat4242 wrote:
       | We used to have these kinds of puzzles physically in the 80s.
       | Little plastic pocket Chess boards etc with pieces that would
       | stick in there with a Pin. Never thought of them until i read
       | this :)
        
       | dfboyd wrote:
       | The iOS app is long-unmaintained and has bugs. It needs a new
       | maintainer, but they need some kind of Apple developer account to
       | actually get it in the app store.
        
       | fsckboy wrote:
       | if somebody wants a "C lang level" bug/puzzle to figure out
       | (could be as simple as looking at the source), I just discovered
       | it a couple days ago: if you use a large number to set up a board
       | in untangle, the algo is extremely slow to set the board up,
       | probably an O(N*2) or worse or something. You can see this
       | slowness in the web version, put in a 600 or 2000
       | 
       | anyway, I was running the C version of the puzzle from cli and I
       | must have put a typo in for an even bigger number than I intended
       | and the process went away for a long time. I got sick of looking
       | at the little window and discovered that I couldn't kill it even
       | with kill -9. I killed the window with xkill but the process was
       | still chugging away in the background at 99% CPU.
       | 
       | I finally managed to kill it with htop but I have a sense that I
       | didn't really kill it, I think it just finished whatever long ops
       | it was doing.
       | 
       | I didn't test much more, but I did load up a board size 600 to
       | play and confirmed while it was building the board, kill -9
       | didn't do anything, and after it finished it allowed me to play
       | the game. the kill -9 was swallowed and gone.
        
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       (page generated 2025-07-26 23:01 UTC)