This is a puzzle game where you can enjoy learning the rules of Go. - Product Name: Yonro no Go IGO Puzzle - Contents: Puzzle pieces, board - Supervised by: Mondai Shu - Target Age: 57 years and older - Game Type: Go Puzzle Thank you for looking. It is in very clean condition, but one yellow stone (piece) is missing. Please understand that this is a used item, and no returns or exchanges will be accepted.