(;GM[1]FF[4]CA[UTF-8]AP[CGoban:3]ST[2]
RU[Japanese]SZ[19]KM[0.00]
PB[Black to play]
C[Just play through the moves to move 22 which is the problem position. These do not represent a game sequence!]
;B[or]
;W[pr]
;B[oq]
;W[pq]
;B[op]
;W[qr]
;B[pp]
;W[qp]
;B[qo]
;W[rp]
;B[ro]
;W[rq]
;B[so]
;W[po]
;B[sq]
;W[qn]
;B[rn]
;W[pn]
;B[]
;W[rm]
;B[]
;W[qm]C[This is the problem position. Black to play.]
)