[HN Gopher] Show HN: Tiny logic and number games I built for my ...
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       Show HN: Tiny logic and number games I built for my kids
        
       I've been building a few small games to help kids (and curious
       adults) build reasoning and logic skills. Think Word Ladder, Prime
       Hunter, Math Maze ,all in the browser, no installs. Would love
       feedback or suggestions for new types of puzzles
        
       Author : min2bro
       Score  : 65 points
       Date   : 2025-08-04 15:25 UTC (7 hours ago)
        
 (HTM) web link (quizmathgenius.com)
 (TXT) w3m dump (quizmathgenius.com)
        
       | nickpsecurity wrote:
       | I'll just pop in to say it's neat that you built that for your
       | kids. The presentation is good, too.
        
       | jacobmarble wrote:
       | FYI Firefox fails to load the page for me:
       | 
       | > Secure Connection Failed > > An error occurred during a
       | connection to quizmathgenius.com. Cannot communicate securely
       | with peer: no common encryption algorithm(s). > > Error code:
       | SSL_ERROR_NO_CYPHER_OVERLAP
        
         | stevenkkim wrote:
         | Same for me.
        
       | seidleroni wrote:
       | This is really great, well done! I have two young kids and was
       | thinking about putting something like this together and I'm
       | delighted that you beat me to it. Having a 6yo and 8yo, it would
       | be great if there were some more basic games as well.
        
       | getnormality wrote:
       | Prime Hunter sometimes generates sets with no prime numbers.
        
         | kevinventullo wrote:
         | Also, tiny nit but the text at the end says the largest known
         | prime number has over 24 million digits. While technically
         | true, the current largest prime number in fact has over 41
         | million digits!
         | 
         | (Also, I love this. I hope you're still hosting it once I have
         | kids)
        
           | jldugger wrote:
           | > the current largest prime number in fact has over 41
           | million digits!
           | 
           | Because there's an infinite number of primes?
        
             | kevinventullo wrote:
             | *largest known :)
        
         | gjm11 wrote:
         | In the few games I tried, it always ended up that way. You
         | start with a few prime numbers (if you're lucky). Each time you
         | click on one, it gets replaced with another number that usually
         | isn't prime. After a short while, there are no primes left and
         | then there's nothing to do but sit and wait for the game to
         | end.
         | 
         | Perhaps all the numbers should have a finite lifetime, after
         | which they evaporate and a random new one replaces them.
        
           | kevinventullo wrote:
           | Or maybe right click to identify a number as composite.
        
       | ArekDymalski wrote:
       | it's really nice (both idea/purpose and execution). what would be
       | really great is having direct URLs for each game so you can share
       | and point your kid to specific puzzle.
        
       | pizzathyme wrote:
       | Have to ask: How old are your kids? Very fun puzzles! Do they
       | like them?
        
       | 2kblater wrote:
       | I did something similar for my children - very suitable for ages
       | 3 to 5:
       | https://store.steampowered.com/app/3355240/Teach_Kids_Games/
        
         | swah wrote:
         | Leaving the web environment makes stuff like this more exciting
         | to me - is this Unity or Godot? Would love to learn Godot but
         | have a hard time.
        
       | jamoner wrote:
       | I was trying the sum game, but there was no combination of three
       | numbers to add up to 15. I took a screenshot if it helps.
        
       | 512 wrote:
       | This reminds me of the Optiver internship selection process.
        
       | dskhatri wrote:
       | Nice work. I like the simple, unobtrusive and ad-free interface.
       | I have kids who could use this although you face lots of
       | competition for their very limited allotted _active_ screen time
       | [1]. The 6 yo gets 45 mins a week on the computer, usually opting
       | for PBSkids, Kodable or Scratch. The 3 yo gets 15 mins usually
       | opting for guided digital canvas painting as she learns to use a
       | mouse.
       | 
       | There are a few good no-screen puzzle books for kids (lookup the
       | ones by Usborne).
       | 
       | As a recent publisher of an interactive children's book [2], I am
       | seeing more sales of the physical books than the digital/web
       | editions despite the latter having more features including an
       | element of teaching math.
       | 
       | Curious if you considered publishing a physical book with these
       | concepts/math puzzles?
       | 
       | [1] This app inspires me to upgrade some of their passive screen
       | time (TV) to more of your and similar apps
       | 
       | [2] https://tendollaradventure.com
        
         | susiecambria wrote:
         | Holiday gifts will be ordered for fam, friends, and donations.
         | Thx for the recs.
        
       | AzironaZack wrote:
       | It's cute! Well done. I enjoyed playing them.
       | 
       | The Math Grid game can be "solved" by just clicking the
       | increment/decrement buttons until the outline of the box turns
       | green.
        
       | fsckboy wrote:
       | the 2nd game, click the prime numbers, my second board had only a
       | 1 as a potential candidate, and 1 is not considered prime. the
       | other numbers were all composites and I was awarded a big fat
       | zero for knowing all this. (I went back in and the game does not
       | allow clicking the 1, good; but the description "divisible only
       | by 1 and themselves" doesn't really rule it out. maybe don't give
       | 1's or explain this)
       | 
       | clicking the prime numbers is a bit hard to do, and they scooch
       | out of the viewing area and disappear for a bit. not complaining
       | but while i was figuring out the game on my first board, I did
       | terribly because of that.
       | 
       | given the level of math proficiency required for the prime number
       | game, I was shocked in the next math grid game when using the
       | ascend/descend buttons it simply told me every time I had hit the
       | right answer. thought this was how to play so I didn't try typing
       | numbers in. on my firefox browswer the answer numbers are too big
       | to fit in the cells.
        
         | bobthecowboy wrote:
         | Likewise on the prime number game, I had a board with all even
         | numbers >2.
        
       | anonu wrote:
       | nice work! But these arent that easy! What age group target was
       | this for?
        
       | zakki wrote:
       | I found that when no more prime number, the game still on. When I
       | clicked non prime number game over and showed my score.
        
       | wellpast wrote:
       | This is great. I've been working on a social site where the
       | content users post and scroll through are microgames (<500kb). My
       | kids are my biggest users so far. My daughter loves this pill
       | sorting game, for example:
       | 
       | https://xelly.games/game/b7eba4db-dc4b-4cfe-8420-3e42e494e52...
        
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       (page generated 2025-08-04 23:01 UTC)