(;GM[1]FF[4]SZ[19]
GN[Solution]
PC[https://senseis.xmp.net/?BeginnerExercise143/Solution]AP[GoWiki:2009]
DT[2024-09-12]
C[Diagram from https://senseis.xmp.net/?BeginnerExercise143/Solution

Solution]
PL[W]

AB[nm][kn][pn][rn][no][jp][kp][np][lq][nq][pq][qq][pr][rr][sr][qs]
AW[in][ip][op][pp][qp][rp][iq][jq][oq][rq][or]
LB[ns:a][os:b]

;W[kr]C[W1]MN[1]

;LB[ns:a][os:b]
)
