(;GM[1]FF[4]SZ[19]
GN[Alternative solution 2/3]
PC[http://senseis.xmp.net/?LadderExercise13/Attempts]AP[GoWiki:2009]
DT[2018-03-06]
C[Diagram from http://senseis.xmp.net/?LadderExercise13/Attempts

Alternative solution 2/3]
PL[B]

AB[qb][nc][pc][rc][od][rd][me][oe][qe][nf][of][pg][qg]
AW[kb][qc][md][nd][pd][qd][ne][pe][pf][qf][rf]

;B[rg]C[B1]MN[1]
;W[pb]C[W2]MN[2]
;B[re]C[B3]MN[3]
;W[oc]C[W4]MN[4]

;
)
