(;GM[1]FF[4]SZ[19]
GN[Solution]
PC[https://senseis.xmp.net/?BeginnerExercise218/Solution]AP[GoWiki:2009]
DT[2024-09-17]
C[Diagram from https://senseis.xmp.net/?BeginnerExercise218/Solution

Solution]
PL[B]

AB[kn][ln][mn][nn][on][jp][kp][lp][qp][rp][kq][oq][rq][pr][qr][rr]
AW[ql][mm][pm][ko][oo][po][qo][ro][sp][iq][jq][nq][kr][lr][mr][nr][or][ps][qs]
LB[qq:a][ss:b]

;B[op]C[B1]MN[1]
;W[np]C[W2]MN[2]
;B[rs]C[B3]MN[3]

;LB[qq:a][ss:b]
)
