Psi chess The Edge (1986) Simulator Rate: 10 The main feature of this chess simulator is the good 3D view of the board and pieces which can be selected between two different kinds. The board can be oriented in four directions or classically viewed from the top. The game is full of options: for instance we can scroll through the already made moves or put the pieces manually on the board. We play against the computer which has various skill levels. We can move the pieces using a little arrow.