(;AB[rs][qr][pr][pq][pp][po][qo][ro][so][sp]AW[rr][rq][rp][qp][qq][sr][sq][qs][ps][os][or][oq][np]GC["Mathematics of Go Game" by SHIMADA Takuya, publ. 1958 by Maki Shoten. Chapt. 6, p 108, Dia. 15a]N["Mathematics of Go Game" by SHIMADA Takuya, publ. 1958 by Maki Shoten. Chapt. 6, p 108, Dia. 15a] )