 A few of the local variants have survived into our time, other local variants have been reconstructed based on a combination of memories and written sources, and for some places only fragments of the local rules are known from old documents.A sáhkku board ("sáhkkufiellu", "bircunfiellu" or "sáhkkulávdi") can traditionally be designed in a number of different ways.At its simplest, a sáhkku board has three parallel rows of short lines, and the pieces are placed on these lines.