What is "skirrid"

Skirrid is a board game designed for 2–6 players. It is played on a 19×19 square board which is divided into two areas: a central diamond (coloured white) and the four corner triangles (coloured black) that remain. One player has 18 translucent tiles made of clear plastic, the other of smoked plastic. These tiles come in six different shapes, each with their own name:

• The Eye (covers 1 square);
• The Rod (covers 2 squares);
• The Quoin (covers 3 squares);
• The Snake (covers 4 squares);
• The Door (covers 5 squares);
• The Gun (covers 6 squares).