Jissen ni Yakudatsu Tsumego is a Japanese Game Boy Color game focusing on "Tsumego," a type of Go puzzle. The gameplay involves solving Go problems by strategically placing stones on the board to test problem-solving and strategic thinking skills.  The game likely features varying difficulty levels.  Further information about the developers is not readily available.

Jissen ni Yakudatsu Tsumego (Japan) (Rev A)

Jimmy White's Cueball (Europe)