Beginning of implementation of a ctypes-based interface to libboard, which is a much cleaner set of Go routines than I hacked together originally. Including a copy of gnugo 3.8 so we can build a dynamic version of libboard.

This commit is contained in:
2012-04-12 13:46:27 -04:00
parent 55dbed09f5
commit 8b772255a1
2259 changed files with 388094 additions and 291 deletions

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(;GM[1]FF[3]
RU[Chinese]SZ[19]HA[0]KM[5.5]
PW[White]
PB[Black]
GN[White (W) vs. Black (B)]
DT[2003-06-08]
SY[Cgoban 1.9.12]TM[10:00(5x1:00)];PL[W]
C[Strange semiai involving ko inside the eye.
J1 K1: White plays G1 and wins. If black plays G1 its useless (not enough liberties) but if he plays G2 gets a ko then threatens at Q2 white makes two eyes and black scapes.
So black G2 and seki, white G1 and win.
A8 A7: Black to play B9 and win. White to play A10 (gaining 8 liberties) and win.
A10 A9: Black to play T15|S13|S11 and win. White to play S11, S13 and gets a ko. Since black has no threats, white wins the ko and the semiai. If black answers T12 white wins the semiai on liberties.
]
AW[ob][pb][nc][qc][rc][sc][bd][cd][dd][nd][od][pd][qd][ae][be][de][ne][ef][nf][qf][rf][sf][ag][bg][eg][ng][qg][bh][fh][nh][qh][bi][ci][fi][ni][qi][cj][fj][mj][oj][qj][rj][sj][ck][fk][mk][ok][al][bl][cl][fl][nl][ol][pl][ql][rl][sl][fm][an][bn][cn][dn][en][jp][kp][lp][mp][np][op][eq][fq][gq][hq][jq][oq][pq][er][hr][ir][mr][pr][es][is][ls][ms][ps]
AB[rd][sd][pe][qe][re][af][bf][cf][pf][cg][pg][sg][ah][ch][dh][ph][rh][ai][di][pi][si][bj][dj][pj][ak][dk][pk][qk][rk][sk][dl][am][bm][cm][dm][dp][ep][fp][gp][hp][ip][cq][dq][iq][kq][lq][mq][nq][cr][dr][jr][kr][nr][cs][ds][fs][hs][js][ks][ns]
)

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(;GM[1]FF[3]
RU[Chinese]SZ[19]HA[0]KM[5.5]
PW[White]
PB[Black]
GN[White (W) vs. Black (B)]
DT[2003-07-25]
SY[Cgoban 1.9.12]TM[10:00(5x1:00)]C[
];
AW[od][qd][kg][lg][mg][ng][og][pg][qg][rg][sg][jh][ji][jj][mj][nj][oj][pj][qj][kk][lk][nk][ok][sk][kl][ol][rl][km][om][kn][ln][mn][nn][on][pn][po][qo][ro][so]
AB[li][mi][ni][oi][pi][qi][ri][si][kj][lj][rj][jk][qk][rk][jl][ml][ql][jm][qm][jn][qn][rn][sn][ko][lo][mo][no][oo][jp][pp][qp][rp][sp][or][qr]
C[Side 6 eye against side 7 center eye.
Black 19 libs, White19 libs. Fight unsettled; white and black eyes unsettled
]
PL[W]
(;B[tt])
(;B[mm];W[sm];B[nl];W[sh];B[nm];W[rh];B[mk];W[qh];B[ll];W[ph];B[pk];
W[oh];B[pl];W[nh];B[pm];W[lm];B[ml];W[mh];B[nl];W[lh];B[mm];W[ki];
B[ll];W[sl];B[mk];W[nm];B[ml];W[rm];B[sj];W[sl])
(;W[mm];B[sm]C[seki
])
(;W[sm];B[mm];W[ki];B[ll];W[lh];B[lm];W[mh];B[nl];W[nh];B[mk];W[oh];
B[pk];W[ph];B[pl];W[qh];B[pm];W[nm];B[ml];W[rh];B[ll];W[sh];B[mm];
W[sl];B[lm];W[rm];B[sj];W[sl];B[mk];W[nl];B[ml])
)

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(;GM[1]FF[3]
RU[Chinese]SZ[19]HA[0]KM[5.5]
PW[White]
PB[Black]
GN[White (W) vs. Black (B)]
DT[2003-07-25]
SY[Cgoban 1.9.12]TM[10:00(5x1:00)];
C[Corner 4 against side 5.
Both can make two eyes but both should try to kill. The liberty count is equal, the fight is unsettled.
White to play D4 and win, black to play J1 and win
]
PL[W]
AW[am][bm][an][cn][dn][en][ao][co][fo][ep][fp][fq][hq][iq][jq][kq][gr][hr][kr][es][fs][gs][ks]
AB[bo][do][io][jo][lo][bp][cp][gp][hp][ip][jp][kp][mp][aq][bq][cq][eq][gq][lq][mq][cr][dr][er][fr][ir][jr][lr][nr][cs][ls][ms]
(;B[tt])
(;B[is];W[dp];B[js];W[ap];B[ds];W[hs];B[is];W[dq];B[ir];W[ar];B[js];
W[jr];B[is];W[bs];B[ir];W[bn])
(;W[dp];B[is];W[ap];B[js];W[dq];B[ds];W[hs];B[js];W[ar];B[is];W[bs];
B[ir];W[jr];B[is];W[bn];B[ir];W[br])
)

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@ -0,0 +1,21 @@
(;GM[1]FF[3]
RU[Chinese]SZ[19]HA[0]KM[5.5]
PW[White]
PB[Black]
GN[White (W) vs. Black (B)]
DT[2003-07-25]
SY[Cgoban 1.9.12]TM[10:00(5x1:00)];PL[B]
AW[kd][je][le][me][oe][jf][nf][eg][fg][gg][hg][ig][og][eh][hh][kh][ph][ei][ii][li][pi][ej][fj][ij][lj][oj][fk][gk][hk][ik][ok][jl][ll][nl][jm][lm][mm][om]
AB[hd][ee][fe][ge][cf][df][hf][if][jg][kg][lg][mg][ch][dh][gh][jh][mh][nh][fi][ji][ni][cj][dj][gj][jj][mj][jk][kk][lk][mk][dl][el][il][em][fm][gm][hm][im]
C[This is a class e semeai.
L11 point to play for both black to win white to seki
]
(;B[tt])
(;W[ki];B[gf];W[mf];B[ff];W[lf];B[ef];W[kf];B[dg];W[ng];B[di];W[oh];
B[ek];W[oi];B[fl];W[kl];B[gl];W[ml];B[hl];W[nk];B[hi];W[nj];B[gi];
W[lh];B[hj];W[mi])
(;B[ki];W[lh])
)

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@ -0,0 +1,19 @@
(;GM[1]FF[3]
RU[Chinese]SZ[19]HA[0]KM[5.5]
PW[White]
PB[Black]
GN[White (W) vs. Black (B)]
DT[2003-07-25]
SY[Cgoban 1.9.12]TM[10:00(5x1:00)];PL[B]
AW[bb][ac][bc][cc][cd][ce][cf][ag][bg][cg][eg][dh][eh][fh][ci][di][fi][ej][ak][ek][el][dm][em][an][bn][cn][dn][eo]
AB[aa][ba][ca][ea][cb][db][eb][ec][ad][dd][ed][be][de][df][dg][bh][ch][ai][bi][bj][cj][dj][dk][bl][cl][dl][am][bm]
C[Class e semeai
White B9 seki, black B9 wins
]
(;B[tt])
(;B[bk])
(;W[bk];B[af];W[cm];B[ab];W[al];B[dc];W[bf];B[ae];W[aj])
)

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(;GM[1]FF[3]
RU[Chinese]SZ[19]HA[0]KM[5.5]
PW[White]
PB[Black]
GN[White (W) vs. Black (B)]
DT[2003-07-25]
SY[Cgoban 1.9.12]TM[10:00(5x1:00)];PL[B]
AW[aa][da][ea][ja][eb][fb][ib][jb][dc][fc][gc][hc][ic][dd][de][af][df][ag][bg][cg][bh][dh]
AB[ga][ha][ka][bb][cb][db][gb][hb][kb][bc][ec][jc][kc][ad][bd][ed][fd][gd][hd][id][jd][ld][be][bf]
C[White B19|C19|A18 wins
Black A18|C19 wins
]
(;B[tt]PL[B])
(;W[ba];B[ca];W[ab];B[fa];W[ia];B[ga];W[cf];B[gb];W[ce];B[hb];W[cd];
B[ha];W[fa];B[ga];W[cc];B[gb];W[ae];B[ac];W[aa];B[hb];W[ha];B[gb])
(;W[ca];B[ba];W[ab];B[fa];W[ia];B[ga];W[cf];B[gb];W[ce];B[ha];W[cd];
B[hb];W[fa];B[ga];W[cc];B[gb];W[ae];B[ac];W[aa])
(;W[ab];B[ca];W[cf];B[fa];W[ia];B[ga];W[ce];B[gb];W[cd];B[fa];W[cc];
B[ha];W[hb];B[ga];W[ae];B[gb];W[ba];B[ac];W[aa];B[fa];W[ha];B[ga])
(;B[ab];W[ca];B[ba])
(;B[ca];W[ab];B[fa];W[ia];B[ga];W[cc];B[gb];W[cd];B[fa];W[ce];B[ha];
W[hb];B[ga];W[cf];B[gb];W[ae];B[fa];W[ha];B[ga];W[ac];B[ba];W[ab];
B[gb])
)

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(;GM[1]FF[3]
RU[Chinese]SZ[19]HA[0]KM[5.5]
PW[White]
PB[Black]
GN[White (W) vs. Black (B)]
DT[2003-03-04]
SY[Cgoban 1.9.12]TM[10:00(5x1:00)]
C[About detecting class e related to np liberties.
];PL[W]
AW[da][oa][pa][qa][ra][bb][cb][db][gb][ib][lb][nb][pb][dc][gc][ic][lc][nc][dd][gd][od][pd][qd][rd][sd][ee][fe][ge][re][ah][bh][ch][dh][bi][bj][cj][dj][ek][dl][el][cm][an][cn][bo][co][ko][lo][mo][kp][mp][op][pp][qp][rp][sp][aq][bq][cq][jq][lq][nq][jr][kr][lr][nr][os][ps][qs][rs]
AB[ba][ea][na][sa][ab][eb][fb][ob][sb][bc][ec][oc][pc][qc][rc][sc][bd][ed][nd][be][ce][de][ne][oe][df][nf][of][pf][qf][rf][ag][bg][cg][dg][eg][eh][fh][qh][rh][sh][fi][ej][gj][ak][bk][ck][dk][fk][bl][bm][bn][on][pn][qn][rn][sn][ao][no][oo][np][oq][pq][qq][rq][sq][or][sr][ms][ss]
C[NE: Black wins Q15|R15 white wins N19
SE: Black wins T5|S5|R5|Q5|O1 white wins O1|S2|R2|Q2
NW: Black wins C17|C16 white wins F17|F16
SW: Black wins D11|A10 white wins A10|D11
]
(;W[tt])
(;B[ns];W[mr];B[so];W[rr];B[ro];W[ls];B[qo];W[pr])
(;W[pr];B[ns];W[mr];B[so];W[ls];B[ro];W[rr];B[qo])
(;B[cc];W[fc];B[cd];W[fd])
(;W[fc];B[cc];W[fd];B[cd])
(;W[aj]PL[W];B[di]PL[W]
(;W[cl]
(;B[ei];W[am];B[al];W[an])
(;B[am];W[ap];B[ei];W[an])
)
(;W[am];B[ei];W[cl];B[al];W[an])
)
(;B[aj];W[am];B[di];W[ap]PL[B]
(;B[ei];W[cl];B[ci];W[al])
(;B[ai];W[cl];B[ci])
)
(;W[ma];B[pe];W[qb];B[qe];W[rb])
(;B[pe];W[ma];B[qe];W[qb];B[se])
(;W[di];B[aj]
(;W[cl]
(;B[ai];W[am];B[al];W[an])
(;B[ei];W[am];B[al];W[an];B[am];W[ap])
(;B[am];W[ap];B[ei];W[an])
)
(;W[am];B[ei];W[cl];B[al];W[an];B[am])
)
(;B[di];W[aj];B[ei];W[cl];B[ci])
(;W[ap];B[aj];W[am];B[di];W[cl];B[ei];W[ao];B[ci];W[al])
)

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(;GM[1]FF[3]
RU[Chinese]SZ[19]HA[0]KM[5.5]
PW[White]
PB[Black]
GN[White (W) vs. Black (B)]
DT[2003-03-04]
SY[Cgoban 1.9.12]TM[10:00(5x1:00)]
C[About detecting class e related to np liberties.
];PL[B]
AW[da][ha][oa][pa][qa][ra][bb][cb][db][hb][ib][lb][nb][dc][gc][ic][lc][nc][dd][gd][od][pd][qd][rd][sd][ee][fe][ge][pe][re][ah][bh][ch][dh][bi][bj][cj][dj][ek][dl][el][cm][an][cn][bo][co][ko][lo][mo][ro][kp][mp][op][pp][qp][rp][sp][bq][cq][jq][lq][nq][ar][br][jr][kr][lr][nr][os][ps][qs][rs]
AB[ba][ea][ga][sa][ab][eb][fb][gb][ob][sb][bc][ec][oc][pc][qc][rc][sc][bd][ed][nd][be][ce][de][ne][df][nf][of][pf][qf][rf][ag][bg][cg][dg][eg][eh][fh][qh][rh][sh][fi][ej][gj][ak][bk][ck][dk][fk][bl][rl][sl][bm][bn][on][pn][qn][rn][ao][no][oo][ap][np][oq][pq][qq][rq][sq][or][rr]
C[NW: black C17|C16 wins white F17|F16 wins
NE: black P15|R15 wins white Q18|R18|S18 wins
SW black and white D11|A10 win
SE: black Q5|R5 wins white R2|Q2 wins
]
(;B[tt])
(;B[cc];W[fc];B[cd];W[fd];B[ca])
(;W[fd];B[cd];W[fc];B[cc];W[fa])
(;W[pb];B[oe];W[qb];B[qe];W[rb])
(;B[qe];W[pb];B[oe];W[qb];B[se])
(;W[aj];B[di];W[am]
(;B[ei];W[cl];B[al];W[an];B[ci];W[am])
(;B[al];W[an];B[am];W[cl];B[an])
)
(;B[aj];W[cl];B[di];W[am];B[al];W[an];B[ei])
(;W[qr]PL[B]
(;B[qo];W[pr];B[po];W[sr])
(;B[ss]
(;W[sr];B[ll];W[kl];B[ss];W[kk];B[qo];W[sr];B[ol];W[nl];B[ss];W[nk];
B[po])
(;W[ns];B[qo];W[pr];B[po];W[sr])
)
)
(;B[qo];W[qr];B[po];W[pr];B[so])
(;W[di];B[aj];W[am];B[ei];W[cl];B[al];W[an];B[am];W[bp])
(;B[di];W[aj];B[ei];W[am];B[ci])
)

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(;GM[1]FF[3]
RU[Chinese]SZ[19]HA[0]KM[5.5]
PW[White]
PB[Black]
GN[White (W) vs. Black (B)]
DT[2003-07-25]
SY[Cgoban 1.9.12]TM[10:00(5x1:00)];C[Corner 4 against side 5.
]
AW[an][bn][cn][dn][ao][do][cp][dp][ep][fp][dq][fq][hq][iq][jq][kq][gr][hr][kr][es][fs][ks]
AB[bo][io][jo][lo][bp][gp][hp][ip][jp][kp][mp][aq][bq][cq][gq][lq][mq][cr][dr][er][fr][lr][nr][cs][is][ls]
PL[W]
(;B[tt]C[black G1 ko white G1 win
])
(;B[gs];W[hs];B[ir];W[ap];B[jr];W[co];B[ds];W[ar];B[gs];W[fs];B[es];
W[bs];B[gs];W[js];B[ir];W[fs];B[is];W[eq];B[gs])
(;W[gs];B[ir];W[ap];B[js];W[co];B[hs];W[eq];B[ds];W[jr];B[is];W[ar];
B[ir];W[bs];B[js];W[br])
)

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(;GM[1]FF[3]
RU[Chinese]SZ[19]HA[0]KM[5.5]
PW[White]
PB[Black]
GN[White (W) vs. Black (B)]
DT[2003-07-25]
SY[Cgoban 1.9.12]TM[10:00(5x1:00)];
C[Corner 4 against side 5.
black D4 seki, J1 win
white D4 win
]PL[W]
AW[am][bm][an][cn][dn][en][ao][co][fo][fp][fq][hq][iq][jq][kq][gr][hr][kr][es][fs][gs][ks]
AB[bo][do][io][jo][lo][bp][cp][gp][hp][ip][jp][kp][mp][aq][bq][cq][eq][gq][lq][mq][cr][dr][er][fr][ir][lr][nr][cs][js][ms]
(;B[tt]C[
])
(;B[dp];W[is];B[hs]PL[W];W[jr];B[ls];W[is])
(;B[is];W[dp];B[hs];W[ep]PL[B];B[ls];W[dq];B[ds];W[jr];B[is];W[ap];
B[hs];W[bn];B[ir];W[js];B[is];W[ar];B[ir])
(;W[dp]PL[B]
(;B[is];W[ep];B[hs];W[dq];B[ls];W[ap];B[ds];W[jr];B[is];W[bn];B[ir];
W[ar];B[hs];W[js];B[is];W[bs])
(;B[ep];W[eo];B[is];W[do];B[ls];W[dq];B[hs];W[bn];B[ds];W[jr];B[is];
W[ap];B[ir];W[ar];B[hs];W[js];B[is];W[bs])
)
)

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@ -0,0 +1,21 @@
(;GM[1]FF[3]
RU[Chinese]SZ[19]HA[0]KM[5.5]
PW[White]
PB[Black]
GN[White (W) vs. Black (B)]
DT[2003-07-25]
SY[Cgoban 1.9.12]TM[10:00(5x1:00)];
C[Corner 4 against side 5.
black J1 win, white D4 win
]PL[W]
AW[am][bm][an][cn][dn][en][ao][co][fo][fp][fq][hq][iq][jq][kq][gr][hr][kr][es][fs][gs][ks]
AB[bo][do][io][jo][lo][bp][cp][gp][hp][ip][jp][kp][mp][aq][bq][cq][eq][gq][lq][mq][cr][dr][er][fr][ir][jr][lr][nr][cs][ms]
(;B[tt])
(;W[dp];B[is];W[ep];B[ls];W[ap];B[js];W[ar];B[ds];W[hs];B[is];W[dq];
B[ir];W[bs];B[js];W[jr];B[is];W[bn])
(;B[is]PL[W];W[dp];B[ls];W[ap];B[js];W[ep];B[ds];W[hs];B[is];W[ar];
B[ir];W[bn];B[js];W[jr];B[is];W[bs];B[ir])
)

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@ -0,0 +1,26 @@
(;GM[1]FF[3]
RU[Chinese]SZ[19]HA[0]KM[5.5]
PW[White]
PB[Black]
GN[White (W) vs. Black (B)]
DT[2003-07-25]
SY[Cgoban 1.9.12]TM[10:00(5x1:00)];PL[B]
AW[le][me][oe][jf][kf][lf][nf][eg][fg][gg][hg][ig][ng][og][eh][hh][oh][ei][ii][li][oi][ej][fj][ij][lj][oj][fk][gk][hk][ik][ok][jl][ll][nl][jm][km][lm][mm][om]
AB[hd][ge][cf][df][ef][ff][hf][if][dg][jg][kg][lg][mg][ch][dh][jh][mh][ci][fi][gi][ji][ni][cj][dj][gj][jj][mj][dk][jk][kk][lk][mk][dl][el][fl][gl][il][gm][hm][im]
C[White L11 seki
black O12 O10 L11 win. L11 best
]
(;B[tt])
(;W[ki];B[gf];W[nh];B[nj];W[mf]PL[B];B[di];W[nk];B[ek];W[ml];B[hl];
W[kl];B[hi];W[mi];B[gh];W[lh];B[hj];W[kj])
(;B[ki];W[mi];B[nh])
(;B[nh];W[ki];B[gf];W[nj];B[di];W[nk];B[ek];W[ml];B[hl];W[mf];B[gh];
W[kl];B[hi];W[lh];B[hj];W[mi];B[ih])
(;B[nj];W[ki];B[gf];W[nh];B[di];W[mf];B[ek];W[kl];B[hl];W[ml];B[gh];
W[nk];B[hi];W[lh];B[hj];W[mi];B[ih])
)

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@ -0,0 +1,22 @@
(;GM[1]FF[3]
RU[Chinese]SZ[19]HA[0]KM[5.5]
PW[White]
PB[Black]
GN[White (W) vs. Black (B)]
DT[2003-07-25]
SY[Cgoban 1.9.12]TM[10:00(5x1:00)];PL[B]C[White A9 seki black A9 win
]
AW[bb][ac][bc][cc][cd][ce][cf][ag][bg][cg][dh][eh][fh][ci][di][fi][ej][bk][ek][el][dm][em][an][bn][cn][dn][eo]
AB[aa][ba][cb][db][dc][ad][dd][be][de][df][dg][bh][ch][ai][bi][bj][cj][dj][dk][bl][cl][dl][am][bm]
(;B[tt])
(;W[ak];B[af];W[cm];B[ca];W[al];B[ab];W[bf];B[ae];W[aj])
(;B[ak]C[win
])
(;B[ca];W[ak];B[ab];W[cm];B[af];W[bf];B[ae];W[aj];B[ah];W[bd];B[ae];
W[al];B[ck];W[ak];B[af]C[also wins though inferior
])
)

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@ -0,0 +1,31 @@
(;GM[1]FF[3]
RU[Chinese]SZ[19]HA[0]KM[5.5]
PW[White]
PB[Black]
GN[White (W) vs. Black (B)]
DT[2003-07-25]
SY[Cgoban 1.9.12]TM[10:00(5x1:00)];PL[B]
C[White B9 seki black B9 win C19 also wins though is inferior
]
AW[bb][ac][bc][cc][cd][ce][cf][ag][bg][cg][dh][eh][fh][ci][di][fi][ej][ak][ek][el][dm][em][an][bn][cn][dn][eo]
AB[aa][ba][cb][db][dc][ad][dd][be][de][df][dg][bh][ch][ai][bi][bj][cj][dj][dk][bl][cl][dl][am][bm]
(;B[tt])
(;W[bk];B[af];W[cm];B[ca];W[aj];B[ab]
(;W[al];B[bf])
(;W[bf]PL[B]
(;B[ae];W[al])
(;B[ah];W[ae])
)
)
(;B[bk]C[win
])
(;B[ca];W[bk];B[ab];W[al];B[af];W[bf];B[ae];W[cm];B[ah];W[bd];B[ae];
W[aj];B[ck];W[ak];B[af]C[C19 also wins though inferior
])
)

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@ -0,0 +1,26 @@
(;GM[1]FF[3]
RU[Chinese]SZ[19]HA[0]KM[5.5]
PW[White]
PB[Black]
GN[White (W) vs. Black (B)]
DT[2003-07-25]
SY[Cgoban 1.9.12]TM[10:00(5x1:00)];
AW[aa][ea][ja][ab][eb][fb][ib][jb][dc][fc][gc][hc][ic][dd][de][af][df][ag][cg][bh][dh]
AB[ga][ha][ka][bb][cb][db][gb][kb][bc][ec][jc][kc][ad][bd][ed][fd][gd][hd][id][jd][be][bf]
PL[B]C[white D19 win black D19 F19 H18 win
]
(;B[tt])
(;W[da];B[ca];W[cc];B[hb];W[cd];B[ia];W[fa];B[ha];W[ce];B[hb];W[cf];
B[ga];W[ae];B[gb];W[ia];B[ha];W[bg];B[ga];W[ba];B[ac];W[aa];B[gb];
W[hb];B[ga])
(;B[da];W[ba];B[hb];W[cc];B[fa];W[ia];B[ga];W[cd];B[ha];W[ce];B[gb];
W[cf];B[hb];W[fa];B[gb];W[bg];B[ga];W[ae];B[ha];W[hb];B[ga];W[ca];
B[ac];W[ba];B[gb])
(;B[hb];W[da];B[ca];W[cc];B[ia];W[fa];B[ha];W[cd];B[hb];W[ce];B[gb];
W[cf];B[ga];W[ia];B[ga];W[bg];B[ha];W[ae];B[gb];W[hb];B[ga];W[ba];
B[ac];W[aa];B[gb])
)

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(;GM[1]FF[3]
RU[Japanese]SZ[19]HA[0]KM[5.5]
PW[White]
PB[Black]
GN[White (W) vs. Black (B)]
DT[2003-09-01]
SY[Cgoban 1.9.12]TM[1:00+4:00/25];
AW[bb][bc][ad][bd][be][ce][cf][cg][ah][bh][ch][di][ei][ej][ek][bl][cl][el][em][en][do][eo][ap][cp][dp][aq][bq][cq]
AB[aa][ba][ca][da][db][dc][dd][ed][ee][af][ef][eg][dh][eh][ci][aj][bj][cj][dj][ak][dk][dl][am][cm][dm][an][bn][cn][bo][bp]
PL[B]C[black and white A18 win
]
(;B[tt])
(;W[ab])
(;B[ab];W[bm];B[ac];W[bk];B[cb];W[al];B[cc];W[dn];B[cd];W[co];B[de];
W[ao];B[df];W[bi];B[dg];W[ai];B[ck];W[bl];B[bf];W[cl];B[ag];W[bk];
B[ae];W[bg];B[af];W[bm];B[al];W[bl])
)

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(;GM[1]FF[3]
RU[Chinese]SZ[19]HA[0]KM[5.5]
PW[White]
PB[Black]
GN[White (W) vs. Black (B)]
DT[2004-03-30]
SY[Cgoban 1.9.12]TM[30:00(5x1:00)];
C[Black T19 S16 wins
White S16 wins
]PL[W]
AW[ja][ka][la][ma][na][oa][pa][qa][ra][ab][bb][hb][ib][mb][ob][pb][qb][bc][dc][hc][mc][nc][oc][qc][ad][cd][dd][ed][fd][gd][hd][sd][ce][af][bf][cf][rk][sk][rl][rm][sm][on][pn][qn][rn][oo][ro][so][op][oq][or][os][ss]
AB[ba][ca][da][ea][fa][ga][ha][ia][cb][eb][gb][jb][kb][lb][rb][sb][cc][ec][fc][gc][lc][pc][rc][ld][md][nd][od][pd][qd][qe][re][rf][sf][qj][rj][sj][ok][pk][qk][ol][ql][nm][om][pm][qm][nn][no][np][pp][sp][nq][pq][sq][nr][pr][sr][ns][ps]
(;W[tt])
(;W[rr];B[rq];W[rs];B[qp];W[rp];B[qr];W[qq];B[rq];W[sq];B[qs];W[sr];
B[sp];W[sr];B[sq];W[rr])
(;B[sa])
(;W[rd];B[se];W[db];B[sc];W[aa])
)

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(;GM[1]FF[3]
RU[Chinese]SZ[19]HA[2]KM[0.5]
PW[White]
PB[Black]
GN[White (W) vs. Black (B)]
DT[2004-03-28]
SY[Cgoban 1.9.12]TM[30:00(5x1:00)]AB[pd][dp];W[dc]WL[1769];B[po]
BL[1797];W[cn]WL[1758];B[cl]BL[1796];W[jq]WL[1756];B[pq]BL[1795];W[fq]
WL[1750];B[dq]BL[1794];W[en]WL[1748];B[eo]BL[1785];W[bp]WL[1745];B[bq]
BL[1782];W[cp]WL[1744];B[cq]BL[1781];W[do]WL[1741];B[fp]BL[1770];W[gq]
WL[1740];B[fn]BL[1770];W[em]WL[1737];B[cm]BL[1737];W[dl]WL[1736];B[bn]
BL[1735];W[bo]WL[1735];B[bm]BL[1735];W[dk]WL[1734];B[ck]BL[1735]
(;W[cj]WL[1733];B[bj]BL[1734];W[ci]WL[1732];B[bi]BL[1733];W[ch]
WL[1731];B[dm]BL[1725];W[dn]WL[1730];B[el]BL[1724];W[fm]WL[1730];B[ek]
BL[1722];W[dj]WL[1730];B[fj]BL[1661];W[gn]WL[1728];B[fo]BL[1660];W[hm]
WL[1727]
(;B[pg]BL[1653]
(;W[hj]WL[1722];B[qk]BL[1650];W[fg]WL[1720];B[lq]BL[1647];W[nc]
WL[1717];B[nd]BL[1646];W[md]WL[1716];B[ne]BL[1644];W[oc]WL[1714];B[pc]
BL[1643];W[jc]WL[1707];B[me]BL[1642];W[ld]WL[1707];B[if]BL[1633];W[kf]
WL[1706];B[ic]BL[1623];W[gc]WL[1705];B[jb]BL[1617];W[kc]WL[1704];
AW[oa][lb][pb][fc][lc][mc][hd][fe][ke][gf][hf][ig][jg][kg][lg][mg][ng][kh][ki][ij][jj][nj][pj][qj][rj][gk][jk][lk][mk][nk][ok][pk][kl][ll][ml][nl][pl][gm][jm][km][lm][jn][kn][go][io][hp][ip]
AB[ib][kb][qb][id][jd][kd][ge][he][je][le][hg][og][gh][ih][jh][lh][mh][nh][rh][ji][li][kj][lj][mj][hk][kk][il][jl][ol][ql][im][mm][nm][om][pm][hn][in][ln][ho][jo][ko][ep][gp][er]
PL[W]
(;W[tt])
(;W[hh]
C[Correct sequence
White H12 + F11 combination wins
Black wins by connecting at H12 or filling an outside lib
]
;B[hi];W[fi]
(;B[gj];W[gi];B[fh];W[ei];B[eh];W[eg];B[nf];W[dh];B[mf];W[gg])
(;B[fh];W[ei];B[eh];W[eg])
(;B[gi];W[gj];B[fh];W[ei];B[eh];W[eg])
)
(;W[fi]C[Not enough
];B[hh];W[gi];B[nf];W[fh];B[mf])
)
(;W[ij]WL[1719];B[qk]BL[1642])
)
(;B[ql]BL[1641])
)
(;W[dj]WL[1723])
)

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(;GM[1]FF[3]
CA[UTF-8]AP[CGoban:2]ST[2]RU[Japanese]SZ[19]KM[0.5]TM[600]
OT[5x30 byo-yomi]
PW[ritx2001]
PB[Magicspain]
WR[1k]BR[3k]
DT[2004-02-18]
PC[The Kiseido Go Server (KGS) at http://kgs.kiseido.com/]
RE[B+Resign]
;
AW[cb][db][gb][mb][dc][fc][gc][ic][jc][lc][mc][cd][dd][ed][jd][kd][nd][pd][rd][be][ce][fe][le][se][df][ff][gf][hf][mf][rf][sf][kg][lg][ng][og][pg][sg][hh][mh][hi][ni][oi][gj][hj][nj][hk][kk][lk][mk][ok][pk][dl][hl][kl][dm][fm][km][an][cn][dn][en][gn][jn][mn][ao][bo][co][jo][so][ap][ip][mp][pp][rp][sp][aq][fq][hq][jq][kq][mq][qq][cr][er][fr][ir][mr][nr][pr][rr][bs][cs][es][ms][os][qs]
AB[ba][bb][hb][ib][jb][kb][lb][ac][bc][cc][hc][kc][bd][fd][gd][id][ae][ee][ge][he][ie][bf][cf][ef][nf][of][pf][qf][ag][cg][eg][fg][qg][rg][ch][dh][ph][sh][ai][di][fi][gi][mi][pi][ri][bj][ej][mj][oj][pj][ak][bk][dk][ek][gk][nk][qk][al][cl][el][il][ll][ml][nl][bm][cm][em][im][lm][qm][rm][bn][in][sn][ho][lo][mo][no][po][qo][ro][bp][cp][dp][fp][hp][lp][qp][bq][dq][eq][gq][lq][nq][oq][pq][ar][br][dr][gr][lr][or][ds]
PL[W]
(;B[tt])
(;B[eb]C[H18 vs G18
Black and white E18 and win
];W[ha];B[ia];W[ga];
B[fa];W[ec];B[ca];W[da];B[de];W[if];B[ea];W[fb];B[ea];W[je];B[hd];
W[la];B[fa])
(;W[eb];B[ga];W[fa])
)