A 3D workshop with two classic Chinese wooden puzzles: take a six-piece burr lock apart piece by piece, then solve two Huarong Dao sliding-block layouts.
Sunjing Puzzles (榫境) is a small 3D workshop containing three traditional Chinese wooden puzzles. The first is a burr lock — six interlocking pieces, one of which can move, and the whole thing comes apart only in the right order. The other two are Huarong Dao sliding-block layouts, the puzzle usually known in English as Klotski.
It is deliberately unhurried. There is no timer pressure, no score, and no fail state: you rotate the block, look at where the joints meet, and try things. A hint is available when you want one and an undo when you need one.
How to play Sunjing Puzzles
- Drag to rotate the piece and scroll to zoom. There is a reset-view button if you lose your bearings.
- Click a numbered piece to select it, then pull it out forwards or backwards. Only one piece can move at the start — finding it is the first puzzle.
- The counter tracks pieces removed, time and moves, but nothing is lost by taking longer.
- Use the hint button if you stall, and undo to take a move back.
- The two Huarong Dao boards are separate levels: an easy introduction and the classic "general on horseback" layout.
Click Fullscreen above the game for the largest play area. If the game does not load, use Open in new tab to play it directly from our copy.
Why it's worth your time
The burr lock is the interesting one to have rebuilt in a browser, because the puzzle is entirely about three-dimensional interlock — flatten it into 2D and it stops being a puzzle at all. Being able to orbit the block and look into the joints is the whole point, and it is the reason this needs a real 3D view rather than an illustration.
It was published through ChatGPT Sites with the source in a public repository. The interface is in Chinese, but the puzzles are physical rather than verbal, so the language does not get in the way. Our copy is about 1.2 MB, and it takes touch as well as a mouse — you drag to rotate the block either way.
How it was made and where it lives
Published through ChatGPT Sites (chatgpt.site) — the same hosting pipeline GPT-6 Astra uses to ship playable games straight from a prompt. The author publishes as MartinDelophy. Original: https://sunjing-puzzles.hp20230404.chatgpt.site/. The Play button above runs our own unmodified copy, so the game keeps working here if that page goes down — which on free hosting usually has nothing to do with the author. Nothing about the game itself is changed, and the original stays linked from every page.
ChatGPT Sites is the hosting side of the workflow OpenAI describes for building games with GPT-6 Astra: the model writes the game, then publishes it to a public address in one step. That is why so many of the newest single-file browser games are appearing on chatgpt.site domains.
If you like Sunjing Puzzles, try these
For the same unhurried, spatial mood, Infinite Garden is a much longer game built on noticing how a space is put together. Toy2Game includes a sliding-car puzzle if this style of block-shuffling is what you came for.
Frequently asked questions
- How many puzzles are there?
- Three: one six-piece burr lock and two Huarong Dao sliding-block layouts.
- Is it in English?
- No, the interface is Chinese. The puzzles themselves are visual and the controls are drag, click and scroll.
- Can I play on a phone?
- Yes. Dragging to rotate and tapping to select both work by touch, though a larger screen makes the joints easier to read.
- Is there a hint?
- Yes, there is a hint button and an undo, and nothing is timed.
- Is Sunjing Puzzles free to play?
- Yes. Everything on Floating Arcade is free, with no account, ads or downloads.
- Can I embed this game on my own website?
- Yes — copy the snippet below. The embedded player links back here, which is how we ask to be credited.
Embed Sunjing Puzzles on your site
Paste this where you want the game to appear:
