Steven Kelly

Steven Kelly
Yinyu

If you like Sudoku, you will love Yinyu. Yinyu is sixth grade math with a twist. This game requires basic math skills such as addition, subtract, mult …
Yinyu Jr.

Yinyu Jr. is designed as an easier starting version of Yinyu. Unlike the original version, Jr. requires using three (3) numbers and two (2) operators. …