(;AB[ss][rr][qq][pp][oo][nn][mm][ll][kk][jj][sq][sp][rp][ro][qo][qn][pn][qs][pr][oq][np][mo][ar][br][cr][dr][ds][bs][cq][dp][eo][fn][gm][hl][ik][ki][lh][mg][nf][oe][pd][qc][rb][sc][sd][rd][re][qe][sf][sg][rg][qg][qf][pf][og][nh][mi][lj][jl][im][hn][go][fp][eq][fr][gr][hr][ir][gq][iq][jq][jp][hp][io][jn][km][mk][nj][oi][ph][qi][qj][qk][ql][pl][pm][om][nm][nl][ok][pj][jo][ko][ln][jb][kb][ka][kc][ib][ia][hb][gb][ga][ac][ad][bd][be][ce][cf][df][eg][bg][cg][dg][bh][ah][ai][aj][ak][bk][bl][bm][am][cm]AW[aq][bq][cp][bp][ao][an][bn][cn][co][do][en][fm][gl][hk][ij][ji][kh][lg][mf][ne][od][pc][qb][dm][el][fk][gj][hi][ih][jg][kf][le][md][nc][ob][pa][ra][sb][cl][ck][bj][bi][ci][ch][dh][dk][dj][ej][ei][eh][fi][gh][hg][if][je][kd][lc][lb][la][ma][nb][oa][mc][af][fg][ef][de][cd][bc][ab][ba][cb][da][eb][fb][fa][fc][ec][dc][gc][hc][ic][jc][ed][fe][gf][he][id][gd][ge][qh][rh][sh][ri][rj][rk][rl][rm][rn][sn][so][qm][er][es][fs][gs][hs][is][js][jr][kr][kq][kp][lp][lo][mp][mq][nq][nr][or][os][ps]SZ[19]GN[Elwyn Berlekamp's Zig-zag Zipper]GC[Elwyn Berlekamp showed me this in late March 2000.  He created it as part of some (then) unpublished work on the thermography of Multistage Kos.He conjectured that it was the largest "sensible" (i.e. all other groups alive) such ko which would fit on a 19x19 board.]C[Game Name: Elwyn Berlekamp's Zig-zag Zipper.

Game Comment: Elwyn Berlekamp showed me this in late March 2000.  He created it as part of some (then) unpublished work on the thermography of Multistage Kos.He conjectured that it was the largest "sensible" (i.e. all other groups alive) such ko which would fit on a 19x19 board.]
;B[sa];W[];B[qa];W[];B[pb];W[];B[oc];W[];B[nd];W[];B[me];W[];B[lf];W[];B[kg];W[]
;B[jh];W[];B[ii];W[];B[hj];W[];B[gk];W[];B[fl];W[];B[em];W[];B[dn];W[];B[dl];W[]
;B[ek];W[];B[fj];W[];B[gi];W[];B[hh];W[];B[ig];W[];B[jf];W[];B[ke];W[];B[ld];W[]
;B[jd];W[];B[ie];W[];B[hf];W[];B[gg];W[];B[fh];W[];B[ff];W[];B[ee];W[];B[dd];W[]
;B[cc];W[];B[bb];W[];B[aa];W[];B[ca];W[];B[db];W[];B[ea];W[da];B[];W[cb];B[];W[ba]
;B[];W[ab];B[];W[bc];B[];W[cd];B[];W[de];B[];W[ef];B[];W[fg];B[];W[gh];B[];W[hg]
;B[];W[if];B[];W[je];B[];W[kd];B[];W[le];B[];W[kf];B[];W[jg];B[];W[ih];B[];W[hi]
;B[];W[gj];B[];W[fk];B[];W[el];B[];W[dm];B[];W[en];B[];W[fm];B[];W[gl];B[];W[hk]
;B[];W[ij];B[];W[ji];B[];W[kh];B[];W[lg];B[];W[mf];B[];W[ne];B[];W[od];B[];W[pc]
;B[];W[qb];B[];W[ra];B[];W[sb];B[];W[rc];B[];W[qd];B[];W[pe];B[];W[of];B[];W[ng]
;B[];W[mh];B[];W[li];B[];W[kj];B[];W[jk];B[];W[il];B[];W[hm];B[];W[gn];B[];W[fo]
;B[];W[ep];B[];W[dq];B[];W[fq];B[];W[gp];B[];W[ho];B[];W[in];B[];W[jm];B[];W[kl]
;B[];W[lk];B[];W[mj];B[];W[ni];B[];W[oh];B[];W[pg];B[];W[pi];B[];W[oj];B[];W[nk]
;B[];W[ml];B[];W[lm];B[];W[kn];B[];W[mn];B[];W[no];B[];W[op];B[];W[pq];B[];W[qr]
;B[];W[rs];B[];W[sr];B[];W[rq];B[];W[qp];B[];W[po];B[];W[on])