(;GM[1]FF[4]SZ[19]
GN[a and b are local ko threats for white]
PC[http://www.go4go.net/]
AP[GoWiki:2009]
DT[2023-12-04]
C[Diagram from http://www.go4go.net/

a and b are local ko threats for white]
PL[B]

AB[sb][kc][mc][nc][rc][dd][od][qd][pe][re][cf][of][qg][rg][nh][oh][ph][mm][nm][om][rm][qn][ro][ep][qp][rp][fq][rq]
AW[ra][nb][rb][oc][pc][qc][pd][pg][mh][qh][mi][ni][pi][ri][dj][qj][qk][nl][po][qo][cp][fp][pp][dq][eq][gq][nq][qq][qr]
LB[rd:b][qe:a]

;B[pb]C[B1]MN[1]
;W[pa]C[W2]MN[2]
;B[oa]C[B3]MN[3]
;W[qb]C[W4]MN[4]
;B[qa]C[B5]MN[5]

;LB[rd:b][qe:a]
)
