Re: [gnugo-devel] owl:6

[Arend Bayer]

Dan wrote:

>
> > Test case owl:6 is wrong, isn't it? If white plays B5 (the listed
> > move) and black answers at B6, I don't see any continuation for white.
> > In fact I don't see any defense at all. Can someone confirm?
>
> How do you continue after W:C4?
>
> I don't see how to kill. Variations attached.

It seems to me that highly non-obvious move of B:C5 kills then, but I may
well be wrong. I am rather certain that W:B4 (as suggested by SP Lee)
is refuted by B:A5.

Arend

(;GM[1]FF[3]
SZ[19]
GN[GNU Go 3.4 load and print]
DT[2003-08-07]
KM[6.5]AP[GNU Go:3.4]RU[Japanese];
AW[fa][ka][la][sa][fb][gb][jb][kb][lb][sb][cc][dc][fc][hc][jc][mc][oc][qc][sc][ad][bd][cd][ed][fd][kd][md][od][qd][sd][ae][ce][ee][je][ke][le][me][ne][oe][pe][qe][re][se][ef][ff][jf][ag][bg][dg][eg][hg][jg][pg][ah][bh][ch][eh][ih][jh][ph][qh][bi][ei][fi][gi][ji][ki][pi][gj][kj][oj][rj][kk][lk][pk][qk][rk][sk][ml][nl][ol][pl][rl][hm][nm][rm][gn][hn][in][qn][rn][ho][jo][oo][po][qo][so][gp][hp][ip][kp][lp][qp][rp][cq][hq][jq][lq][mq][cr][ir][nr][is][ms][ns][os]
AB[ga][ha][ia][ja][ma][na][pa][ra][hb][ib][mb][nb][ob][pb][qb][rb][gc][ic][nc][pc][rc][gd][id][jd][nd][pd][rd][fe][ge][ie][gf][if][qf][fg][gg][ig][qg][rg][dh][fh][gh][hh][rh][ai][ci][di][hi][ii][qi][ri][si][aj][bj][dj][ej][fj][hj][jj][pj][qj][sj][ck][fk][gk][ik][jk][bl][el][hl][kl][ll][ql][dm][fm][gm][im][jm][mm][om][pm][qm][cn][en][fn][jn][nn][on][pn][do][fo][go][ko][lo][mo][no][dp][ep][fp][mp][op][pp][sp][eq][gq][nq][oq][qq][rq][sq][dr][fr][hr][or][pr][hs][ps]
PL[W]IL[io][ro][jp][iq];W[bo];B[bn]
(;W[cp]
(;B[co]
(;W[ap];B[cs];W[bs];B[ar];W[br];B[an];W[aq];B[bp])

(;W[ao];B[cs];W[bs];B[ar];W[br];B[aq];W[bq];B[an])
)

(;B[aq];W[ar]
(;B[ao];W[bq];B[bs];W[ap];B[cs];W[br])

(;B[br];W[bq];B[as];W[cs];B[ao];W[bs])
)

(;B[br];W[bs];B[aq];W[bq])

(;B[ar];W[bq])

(;B[bs];W[cs])

(;B[ap];W[ao];B[ar];W[bq]
(;B[aq];W[cs])

(;B[bs];W[cs])
)
)

(;W[bp];B[ao]C[dead
])

)