(;GM[1]FF[4]SZ[19]
GN[Moves 15 - 20]
PC[http://senseis.xmp.net/?WidestPathForWaltheri]AP[GoWiki:2009]
DT[2018-10-11]
C[Diagram from http://senseis.xmp.net/?WidestPathForWaltheri

Moves 15 - 20]
PL[B]

AB[pd][co][ep][fp][gp][qp][oq]
AW[dd][qj][ck][dq][eq][fq][hq]
LB[cg:a]

;B[ci]C[B1]MN[1]
;W[ek]C[W2]MN[2]
;B[cf]C[B3]MN[3]
;W[ei]C[W4]MN[4]
;B[ef]C[B5]MN[5]
;W[ce]C[W6]MN[6]

;LB[cg:a]
)
