Life & fun · alternatives · 2026
24 alternatives to NumBizzz
Reinventing grid puzzles with deductive subtraction logic
Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes.
- 1IM
This is the first iteration of a short game I’m making that tries to interactively explain some of my favorite math questions / ideas. My goal is mostly to get the player curious and not necessarily to explain absolutely everything. There were a lot of fun technical parts to building this: - For implementation reasons, it’s much easier if the lines all have integer intersection points with each other. To do this, when a new line is added I “cheat” by rounding intersections to integers and then splitting the old lines at the intersection into new linds (with potentially different slopes)…
2024 · rahulilango.com · its alternatives →
- 2
Hello, HN - I wanted to share this puzzle game I made during my vacation. I'm rather fond of the pipes puzzle where your goal is to restore a scrambled network of connections by rotating tiles. It's usually played on a grid of squares and this all started when I decided to make a programmatic solver for that kind of puzzle. Then I realized that with some minor changes the solver could generate new puzzle instances. I thought about what kind of puzzle to make and someone suggested a hexagonal grid. Adapting the generator wasn't too hard but then I had to create a way to play this variant. So…
2022 · hexapipes.vercel.app · its alternatives →
- 3
Puzzle Lair brings Sudoku, Killer Sudoku, Calcudoku, X-Sudoku, Kakuro, Ripple Effect, Crossmath and Nonogram together in one clean, free site. Solve daily logic puzzles, track your stats and climb the leaderboards.
Jun 2026 · puzzlelair.com · its alternatives →
- 4
Solve today’s 5x5 Sumplete grid in under 5 minutes. Delete numbers until each row and column hits its target sum. Track streaks, compare stats — play free on any device.
2023 · sumplete.com · its alternatives →
- 5GC
Achieved a new world record in verifying the Goldbach Conjecture using grid computing, by extending the verification up to 4 quadrillion (4×10¹⁸) + 70 trillion (7×10¹³). My grid computing system - Gridbach is a cloud-based distributed computing system accessible from any PC or smartphone. It requires no login or app installation. The high-performance WASM (WebAssembly) binary code is downloaded as browser content, enabling computation on the user’s browser. [Website] https://gridbach.com/ [Medium]…
2025 · medium.com · its alternatives →
- 6LD
Hey HN, About twenty years ago, while I was in college, I first stumbled upon James Propp's Self-Referential Aptitude Test [1] and absolutely loved it. Ever since then, I've had this idea of turning that concept into a daily game, and I've finally built it: https://www.logiquiz.com/ The game interface checks each question against the answers you've given, so it doesn't spoil anything by giving away the answers. There are five different tests each day, from very easy to very hard. I'd love to hear what you think! [1]: https://faculty.uml.edu/jpropp/srat-Q.txt
2025 · logiquiz.com · its alternatives →
- 7IW
I’ve been working on a puzzle game for a few years as a side project. The game is based on a small region of tiles in a grid that is mirrored, modified, and mirrored again. It’s based on a novel phenomenon I noticed where, once these mutations happen a few times, the original region can be hard to recognize. You have a feeling there are symmetries in the image, but they are just out of grasp. Going further, if only part of the region is visible, such as mirroring off the edge of the board, it adds to the feeling and it becomes a satisfying puzzle to solve. I originally published this on the…
2024 · hidden-mirrors.com · its alternatives →
- 8
Swapple - A daily puzzle game where you transform patterns by swapping rows and columns. Challenge yourself to solve it in as few moves as possible!
2025 · swapple.fuglede.dk · its alternatives →
- 9
Logic Traces▲59If puzzles are your thing, then Logic Traces is your game!
2016 · apps.apple.com · its alternatives →
- 10AD
2025 · rvlabs.ca · its alternatives →
- 11
A pipeline that translates Rust GPU code into formal Coq models, as a foundation for memory model proofs - neelsomani/vericuda
2025 · github.com · its alternatives →
- 12
A new deductive logic puzzle every day
Mar 2026 · knotwise.games · its alternatives →
- 13
- 14
We were genuinely impressed by Yann LeCun’s recent announcement about his Sudoku solver based on Energy-Based Models here: https://logicalintelligence.com/yann-lecun So we (a software engineer and prodigy mathematician) worked in the weekend to see if we can beat it and we did! If Kona solves puzzles in 313 milliseconds, we currently solve 270,000 puzzles per second! We do not know the internal mechanics behind Logical Intelligence’s system, but we are happy to share ours in the webpage there is a full description, code and also a paper published. Why people are obsessed with…
Feb 2026 · davisgeometric.com · its alternatives →
- 15
Pixelogic▲67Workout your brain with this free logic puzzle game
2023 · pixelogic.app · its alternatives →
- 16
Challenge and Solve Free Logic Grid Puzzles Online
Nov 2025 · gridpuzz.com · its alternatives →
- 17
Hello! Try out a 3x3 puzzle and click the question mark in the top right for a tutorial. I'd really appreciate any feedback! Thanks
2024 · slidecross.io · its alternatives →
- 18
QuipSeek▲6Master the chaos: Spatial logic meets linguistic skill.
Jan 2026 · quipseek.com · its alternatives →
- 19
I am a developer and a huge chess lover. I play mostly puzzles on Lichess. At some point I realized that I would love to have a similar puzzle-like game app for programming, so I built one! Please try it out and give me some feedback, any kind of feedback is warmly welcomed.
May 2026 · codequizz.com · its alternatives →
- 20
Hi everyone, I built FuseCells, a minimalistic logic puzzle game where every level is handcrafted (no procedural generation). It started as a personal challenge to design a clean rule-set and scale it to thousands of puzzles without losing difficulty balance. What’s unique: • 2,500 handcrafted levels across multiple grid sizes • Deterministic logic — no guessing required • A rule system inspired by constraint-solving and path-finding concepts • Daily challenges and global progress tracking • Fully built as a solo dev project Technical notes for those curious: • Level generation tools I wrote…
Dec 2025 · apps.apple.com · its alternatives →
- 21MN
Hey folks, wanted to share my new logic game I created. I hope you'll enjoy it. It looks easy, but it's only illusion. The goal is to make 210 points on all levels: easy - doable, medium - not sure, hard - I'm happy when I make over 80...
2024 · make210.com · its alternatives →
- 22IB
Hi, I built Equatile, a logic-based puzzle game where you arrange number tiles on a grid to make every row and column equal their target values. It's built using Expo and is available for free on iOS, Android, and the Web. It's a game I've had in mind for almost 10 years now but never got to actually develop, until I came across Expo which made the process incredibly easy. I might open source the code on GitHub. I hope you enjoy playing it!
2025 · equatile.com · its alternatives →
- 23
- 24
Dev here. I created a puzzle that looks like Rubik's cube but works differently. Instead of turning faces, closed bands of 12 stickers slide around the cube. Every scramble is solvable. I built on-device AI solvers that solve it in about 60 moves (sometimes substantially less than that) I'm not even a cuber so since I created it I've been thinking that no human can solve it. Until this Tuesday when I showed it to r/Cubers. It took them about an hour to find a solution. The first human solve was about 240 moves using mostly (how they call it) 4-move commutators:…
Aug 2026 · skimmiq.com · its alternatives →
Also compare
- I made a puzzle game that gently introduces my favorite math mysteries alternatives
- Pipes puzzle (a.k.a. Net) on a hexagonal grid alternatives
- Got sick of ads, so I made my own logic puzzle site alternatives
- Sumplete – A logic puzzle game invented by ChatGPT alternatives
- Goldbach Conjecture up to 4*10^18+7*10^13 alternatives
- Logiquiz – Daily Self-Referential Puzzles alternatives
Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →