(;GM[1]FF[4]SZ[19]
GN[White lives if black's first move blocks on the right-hand side.]
PC[http://senseis.xmp.net/?SixDieExercise3/Solution]AP[GoWiki:2009]
DT[2018-02-04]
C[Diagram from http://senseis.xmp.net/?SixDieExercise3/Solution

White lives if black's first move blocks on the right-hand side.]
PL[B]

AB[gq][hq][iq][jq][kq][lq][mq][nq][gr][nr]
AW[er][hr][ir][jr][kr][lr][mr]
LB[hs:a]

;B[ms]C[B1]MN[1]
;W[gs]C[W2]MN[2]
;B[fs]C[B3]MN[3]
;W[fr]C[W4]MN[4]

;LB[hs:a]
)
