Tandis

красиво, но сложно - люди редко задумываются о геометрических преобразованиях

Really fun little puzzle game, definitely haven't seen something like this before. I did all the levels, including extras. The levels are generally very satisfying. Some geometry/CAD intuition definitely helps. A few later levels are a bit finicky, though. In particular: "Flower pedals ball": Requires many small scale/rotation tweaks, gets a bit frustrating because undo is limited and has a bug. "Twisted double cone tower": There are alternative solutions that the game doesn't account for. It took me a bit to figure out that the intended solution needs to not have hidden faces inside the shape.

good and mathy

very weird

goal make mobius strip

孩子们，还想学复几何和拓扑吗？