(;GM[1]FF[4]CA[UTF-8]AP[CGoban:3]ST[2]
RU[Japanese]SZ[19]KM[0.00]
PW[]PB[Black to Play]C[Just play through the moves to move 42 which is the problem
position. These do not represent a game sequence!]
;B[rq]
;W[rr]
;B[qq]
;W[qr]
;B[pq]
;W[pr]
;B[oq]
;W[or]
;B[nq]
;W[nr]
;B[op]
;W[pp]
;B[oo]
;W[qp]
;B[on]
;W[rp]
;B[pn]
;W[sr]
;B[qo]
;W[mq]
;B[mp]
;W[lq]
;B[mo]
;W[lp]
;B[no]
;W[lo]
;B[rn]
;W[ln]
;B[]
;W[nm]
;B[]
;W[om]
;B[]
;W[pm]
;B[]
;W[qm]
;B[]
;W[qn]
;B[]
;W[rl]
;B[]
;W[sm]C[This is the problem position. Black to play]
)