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

spiral]
PL[B]

AB[jj]
AW[aa][da][oa][ra][cb][fb][gb][hb][ib][jb][kb][lb][mb][pb][sb][bc][ec][nc][qc][ad][dd][gd][hd][id][jd][kd][ld][od][rd][ce][fe][me][pe][se][bf][ef][hf][if][jf][kf][nf][qf][sf][bg][dg][gg][lg][og][qg][sg][bh][dh][fh][ih][jh][mh][oh][qh][sh][bi][di][fi][hi][ki][mi][oi][qi][si][bj][dj][fj][hj][kj][mj][oj][qj][sj][bk][dk][fk][hk][mk][ok][qk][sk][bl][dl][fl][il][jl][kl][ll][ol][ql][sl][bm][dm][gm][nm][qm][sm][bn][en][hn][in][jn][kn][ln][mn][pn][sn][co][fo][oo][ro][ap][dp][gp][hp][ip][jp][kp][lp][mp][np][qp][bq][eq][pq][sq][cr][fr][gr][hr][ir][jr][kr][lr][mr][nr][or][rr][as][ds][qs]


;
)
