LeetCode for Puzzles and Riddles
Math, logical and verbal puzzles of various difficulties
LeetCode for Puzzles and Riddles launched on October 8, 2020 with 67 votes, #789 of 4,018 launches that month and more than 75% of that year's launches. The site was still online in September 2026, 6 years on.
What it does
Started creating these puzzles as a way to bring engineers together during the quarantine period on something they like to do. Realized there's some demand for these original ones and hence creating two every week. On the lines of LeetCode for puzzles.
Does a similar job
all alternatives →
- IMI made a spaced repetition tool to master coding problems2024 · lanki.xyz · ▲206
As you solve LeetCode questions, you can mark them as hard, medium, or easy. The tool will then recommend questions you should review based on (1) how hard the question was for you and (2) how much time has passed since you last reviewed it. I'd recommend normally attempting LeetCode problems and just marking them as hard, medium, or easy for you at first so the tool knows which problems to recommend you review! Here's the theory behind spaced repetition and learning if interested: https://www.codecademy.com/article/spaced-repetition
Tiny logic and number games I built for my kids2025 · quizmathgenius.com · ▲87I’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
I made an interactive math crossword puzzle with infinite levels2024 · scientific.place · ▲165Hey there! I'm the brains behind the math crossword game on my site. This game is all about making math a little more fun – users just drag and drop numbers to fill in the blanks and move on to the next level if they get it right. Let me know if face any issues or have any suggestions! :)


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