(;GM[1]FF[4]SZ[19]
GN[Whites's throw-in]
PC[https://senseis.xmp.net/?OD1PMay22Problem/Solution]AP[GoWiki:2009]
DT[2022-03-13]
C[Diagram from https://senseis.xmp.net/?OD1PMay22Problem/Solution

Whites's throw-in]
PL[B]

AB[ra][mb][rb][mc][pc][qc][nd][od][qd][pe][qe]
AW[qa][nb][qb][sb][lc][nc][rc][md][rd][me][re][of][pf][qf]
LB[ka:b][oa:a]

;B[na]C[B1]MN[1]
;W[ma]C[W2]MN[2]
;B[la]C[B3]MN[3]
;W[lb]C[W4]MN[4]

;LB[ka:b][oa:a]
)
