8 8 3 ## The three subsquare-free species of LS(8) abcdefgh bcaefghd cadfghbe dfhbaceg ehbgcdfa fegahbdc gdehbacf hgfcdeab abcdefgh bcaefghd cdefahbg deghcbfa ehbcgadf fadghceb gfhabdce hgfbdeac abcdefgh bcaefghd cdefghab dafbhecg ehbgdcfa feghadbc gfhcbade hgdacbef