2. The Edge of the Board

If we move the whole set of pieces in diagrams 1, 2 and 3 across the board, taking the white king as the leading piece, we will get the following colored boards:

Diagramm 1

Diagram 1

Diagramm 2

Diagram 2

Diagramm 3

Diagram 3: One sided zugzwang for White: (–/=)

Diagram 1, Black to move: White can draw with his king on the yellow square e4. With his king on a green square, Black wins.

Diagram 2, White to move: White is lost with his king on a red square. White draws on a yellow square.

Diagram 3: Diagram 1 and diagram 2 put together in one diagramm. The pink field indicates a one sided zugzwang position for white, a (-/=)-position with color code pink.

With a white king on one of the dark grey squares Black is winning with and without having the right to move, i.e. the position is of type (-/+).

So, take care, if you hear about simple rules. Most of them are color-blind!

Fundemental Positions and Color Codes


Color codes for the Representation of Positional Types without taking care of the right to move

List of examples