(;GM[1]FF[4]SZ[19]
GN[Diag 5.1 Mistake by Black]
PC[http://senseis.xmp.net/?XuanxuanQijingProblem17/Solution]AP[GoWiki:2009]
DT[2013-04-01]
C[Diagram from http://senseis.xmp.net/?XuanxuanQijingProblem17/Solution

Diag 5.1 Mistake by Black]
PL[B]

AB[oq][qq][rq][nr][or]
AW[on][pn][no][qo][ro][mp][lq][lr][pr][qr][ns]

;B[qs]C[B1]MN[1]
;W[ps]C[W2]MN[2]

;
)
