
Memory Chess: Free Chess Memory and Visualization Game
Memorize a chess position, rebuild it from memory, and get an instant score. Play free to train board vision, visualization, and spatial memory.
@Bing_Builds · X
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Memorize a chess position, rebuild it from memory, and get an instant score. Play free to train board vision, visualization, and spatial memory.
@Bing_Builds · X

Play a 3D chess game with custom skins and functional cannons.
@dropday_ai · X
Check out AI Chess by @andrew_blumson. It's a 3D chess game with custom skins and even functional cannons. The creator added complex features like new units and skin systems using "vibe coding". Try the playable demo.

Multiplayer game combining chess strategy with dice rolling mechanics in fast-paced skirmishes.
@z3roshot · X
Made up a game where chess meets dice: roll, shop, secretly place, fight. ⚄ Same deterministic engine runs the bots and the humans. Server-authoritative so nobody can peek at your hidden pieces. Built with Claude Code. Read more

Playable collection of small, absurd AI projects, each taking about ten seconds
@KarolBuilds · X
My AI slop at is so underrated that I’m the only visitor.

Compete against Claude AI in timed coding challenges judged on speed, correctness, and code quality.
u/Easy-Visit-3934 · Reddit
I built a coding platform where you can compete with Claude on various coding problems, it evaluates based on speed, correctness and code quality Link: https://www.duelai.dev/ Feel free to give it a try and let me know what you think! submitted by /u/Easy-Visit-3934 to r/SideProject [link] [comments]

Train your focus, speed, and memory in 6-minute brain exercise sessions.
@i_manish_30 · X
Mathletiq - 6 minute brain exercise app

A 90s pixel arcade slot machine that generates random creative design briefs. Pull the lever.
@Gazalisapuzzle · X
BriefPot — a creative block ender for designers. Get random design briefs when you’re staring at a blank canvas with no idea what to make. And if you’re bored between projects, there are mini-games too. Pull the lever. Get a brief. Start designing. 🎰

Test your typing speed and accuracy in this brutalist typing challenge.
@ausafulislam_h · X
Try TypeMaster, a typing speed and accuracy web app I built. Give it a shot and share your honest feedback:

Play real tennis using your body and webcam with no controllers needed.
@AkhilMatta29342 · X

Play classic online games like Minesweeper, Sudoku, Tic Tac Toe, and Solitaire.
@iamdeepak89 · X

Free online image processing tool for composing puzzles, slicing grids, and applying AI segmentation with local processing.
@lanford87746071 · X
上线了一个小工具:羊咩像素 WoollyPix 🐑 在线拼图 / 九宫格切图 / AI 智能分割 / 截图美化 全程本地处理,不上传图片,免费无广告

3 tests. 90 seconds. Know your rank. A brutally addictive mechanical skill benchmark for PC gamers.
@AmaanHussain09 · X
I'm 16 and built RankCheck, a 90-second mechanical skill test for PC gamers. It measures your aim, movement, and reflexes, then gives you a shareable Flex Card. I hit Diamond rank. I am looking for the first 1k users