noun
tangram
A dissection puzzle consisting of seven flat pieces (tans) that are put together to form shapes. The term is used in Japanese as a direct loanword.
子供の頃、タングラムで遊ぶのが好きだった。
When I was a child, I liked playing with tangrams.
このタングラムのパズルは意外と難しい。
This tangram puzzle is surprisingly difficult.