(;GM[1]FF[4]SZ[19]
GN[If white tries to escape...]
PC[https://senseis.xmp.net/?BeginnerExercise122/Solution]AP[GoWiki:2009]
DT[2022-10-16]
C[Diagram from https://senseis.xmp.net/?BeginnerExercise122/Solution

If white tries to escape...]
PL[B]

AB[qm][mn][nn][pn][lo][qo][ro][lp][pp][lq][pq][lr][mr][pr]
AW[oo][po][mp][np][op][qp][mq][oq][rq][nr][or]
CR[qp]

;B[qq]C[B1]MN[1]
;W[rp]C[W2]MN[2]
;B[rr]C[B3]MN[3]

;CR[qp]
)
