7.1 The edge of the Board and Zugzwang 1

Diagram 1: Location of a group of pieces and type of position

Diagram 2: Location of a group of pieces and type of position

Moving the whole set of pieces shown in diagram 1 over the whole board - with the white king as leading piece - results in the colored fields shown in diagram 2.

Yellow squares indicate a drawn position: (=/=). Pink and red squares indicate zugzwang positions: (-/=)- and (=/-)-positions, i.e. one sided zugzwang for White resp. Black.

7.2 The edge of the Board and Zugzwang 2

Diagram 3: Location of a group of pieces and type of position

Diagram 4: Location of a group of pieces and type of position

Moving the whole set of pieces shown in diagram 3 over the whole board - with the white king as leading piece - results in the colored fields shown in diagram 4.

Dark red squares indicate reciprocal zugzwang positions: (-/-).

The influence of the edges of the board can be seen clearly.

Fundemental Positions and Color Codes

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