An ancient Chinese puzzle that’s still fun to solve.

Folks have been twisting, turning, and, well, puzzling over tangram puzzles for centuries. The puzzles originated in China hundreds of years ago and prove that the simple but potentially complex game is still as engaging as ever.

Pebbles is a fresh take on the older-than-old-school puzzle. There’s still the same seven tiles, and thousands of potential configurations you can make with them. But this updated tangram is made using sustainably grown bamboo so the tiles feel good, and are pleasant to look at, too. Which is exactly what friends and Pebbles Co-Founders (and game lovers) Adrienne and Liz wanted.

Whether you’re solving a puzzle from the included guide, or just playing around making shapes, this is a great way to exercise those creative thinking and problem solving skills—while having too much fun to notice.