(;GM[1]FF[4]SZ[19]
GN[Black to move]
PC[https://senseis.xmp.net/?LeatherScrollProblem74/Solution]AP[GoWiki:2009]
DT[2023-02-12]
C[Diagram from https://senseis.xmp.net/?LeatherScrollProblem74/Solution

Black to move]
PL[B]

AB[on][pn][qn][rn][no][np][pp][nq][nr][or]
AW[oo][po][qo][ro][op][oq][pr]

;B[qr]C[B1]MN[1]
;W[ps]C[W2]MN[2]
;B[pq]C[B3]MN[3]
;W[qq]C[W4]MN[4]
;B[rq]C[B5]MN[5]
;W[qp]C[W6]MN[6]
;B[rr]C[B7]MN[7]

;
)
