▁rules ▁were ▁published ▁in ▁Sid ▁S ack son ' s ▁A ▁Gam ut ▁of ▁Games . ▁ ▁Cross ings ▁was ▁the ▁prec ursor ▁to ▁Ep amin ond as , ▁which ▁uses ▁a ▁larger ▁board ▁and ▁expanded ▁rules . ▁ ▁Game play ▁ ▁Equ ip ment ▁▁ 1 ▁ 8 x 8 ▁game board ▁▁ 3 2 ▁stones ▁( 1 6 ▁of ▁each ▁color ) ▁ ▁Set up ▁ ▁This ▁is ▁the ▁starting ▁position ▁of ▁Cross ings . ▁ ▁Object ▁ ▁Cross ▁one ▁stone ▁to ▁the ▁oppon ent ' s ▁end ▁of ▁the ▁game board . ▁ ▁Turn s ▁ ▁Play ▁altern ates ▁with ▁each ▁player ▁making ▁one ▁movement ▁on ▁a ▁turn . ▁ ▁Red ▁takes ▁the ▁first ▁turn . ▁ ▁Mov ement ▁A ▁group ▁is ▁a ▁series ▁of ▁one ▁or ▁more ▁same - color ed ▁stones ▁adjacent ▁to ▁one ▁another ▁in ▁a ▁line . ▁( di ag onal , ▁horizontal , ▁or ▁vertical ) ▁A ▁stone ▁may ▁belong ▁to ▁one ▁or ▁more ▁groups . ▁▁ ▁A ▁player ▁may ▁move ▁a ▁single ▁stone , ▁an ▁entire ▁group , ▁or ▁a ▁subgroup . ▁ ▁A ▁group ▁consisting ▁of ▁a ▁single ▁stone ▁may ▁move ▁one ▁space ▁diag on ally ▁or ▁orth og on ally ▁into ▁an ▁empty ▁square . ▁ ▁A ▁group ▁must ▁move ▁along ▁the ▁line ▁which ▁defines ▁it . ▁It ▁may ▁move ▁a ▁number ▁of ▁spaces ▁equal ▁to ▁the ▁number ▁of ▁pieces ▁in ▁that ▁group . ▁ ▁When ▁part ▁of ▁a ▁group ▁is ▁moved ▁( a ▁subgroup ), ▁it ▁must ▁move ▁along ▁the ▁line