(;GM[1]FF[4]SZ[19]
GN[Sacrifice.]
PC[http://senseis.xmp.net/?GettingToBQM20]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?GettingToBQM20

Sacrifice.]
PL[W]

AB[hc][jc][mc][nc][oc][qc][id][ld][pd][ie][le]
AW[ib][ic][kc][lc][dd][hd][md][nd][od][pe][qe][nf]

;W[gc]C[W1]MN[1]
;B[jb]C[B2]MN[2]
;W[hb]C[W3]MN[3]
;B[kd]C[B4]MN[4]

;
)
