Learn Chess - https://www.youtube.com/watch?v=YdnvlntAQH8
Suduko - https://sudoku.com/
Coordinates Alien attack game - https://mathsframe.co.uk/en/resources/resource/469/Coordinates-Alien-Attack
Hit the coordinate game - https://www.mathsisfun.com/data/click-coordinate.html
Geometry games - http://www.math-play.com/Geometry-Math-Games.html