Jonathan Keefer

Compete against the computer to see who can pick numbers that add up to 15 first.

This is one of my all-time faves. Yeah, it's hard and takes time (past the first level), but I love figuring stuff like this out. You just have to match up all the edges.

This is a class logic puzzle. The goal is to place eight queens on a chess board so that no queen can attack another queen.

If you want a good challenge, this one's for you. You have to rotate pieces of this puzzle to connect like colors.

This game take a lot of concentration. The pods open for just a second to show you what's inside... Then, you have to remember and match the color pairs up.

This is the same as Math Lines, but you need to really know your times tables and higher multiples for this one.

This game is very tricky. You have to swap the red guys over to the right while moving the blue guys over to the left. A great thinking game!

This is like the classic board game, Othello. The last one with the most of their color wins. You have to plan ahead because one move can change everything.

The cool thing about this game of pool is that you get to see the geometry of the shots you're lining up! Plan your moves carefully and clear the table.

This is just like our Marble Lines game, but we've made it an addition game. You have to shoot the ball that makes the right sum.