(;GM[1]FF[4]SZ[19]
GN[Alternative Solution]
PC[https://senseis.xmp.net/?XuanxuanQijingProblem184/Solution]AP[GoWiki:2009]
DT[2023-01-27]
C[Diagram from https://senseis.xmp.net/?XuanxuanQijingProblem184/Solution

Alternative Solution]
PL[B]

AB[pm][on][oo][op][nq][pq][pr][rr][sr][ps]
AW[po][pp][qq][rq][sq]
LB[ro:a][qr:b]

;B[rm]C[B1]MN[1]

;LB[ro:a][qr:b]
)
