(;GM[1]FF[4]SZ[19]
GN[WORSE MISTAKE BY BLACK]
PC[http://senseis.xmp.net/?Kokiri/recentGame10]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?Kokiri/recentGame10

WORSE MISTAKE BY BLACK]
PL[B]

AB[cc][cd][pd][de][qf][ci][dp][fp][jp][op][rp][pq][qq][rq][or]
AW[cb][eb][dc][nc][fd][kd][qj][ro][lp][pp][qp][nq][oq][nr][pr]

;B[qr]C[B1]MN[1]
;W[os]C[W2]MN[2]
;B[oo]C[B3]MN[3]
;W[qn]C[W4]MN[4]
;W[po]C[W6]MN[6]
;B[pn]C[B7]MN[7]
;W[qo]C[W8]MN[8]
;B[qm]C[B9]MN[9]
;W[pm]C[W10]MN[10]

;
)
