invalid problem set
Problem | 2090 |
Created | 2003-04-03 |
Source | |
Rating | |
Difficulty | 7 dan |
Average Solve Time | 60 secs |
User Attempts |
220 / 2791 |
Solve Ratio Rating | 4 dan |
| rating history |
This is the first go problem I've ever devised, hope you enjoy it :-)
(;GM[1]FF[4]CA[UTF-8]AP[CGoban:2]ST[2]
RU[Japanese]SZ[9]KM[0.00]
PW[White]PB[Black]AW[gb][hb][ec][fc][hc][fd][hd][ce][de][fe][he][bf][gf][bg][cg][dg][gg][ah][eh][gh][ai][gi]AB[bb][db][eb][fb][cc][bd][cd][ed][be][ee][ie][af][hf][if][ag][hg][bh][ch][dh][hh][ih][hi]C[No komi, no prisoners, black to play and win]PL[B]
(;B[bi]CR[bi]
;W[dd]CR[dd]
(;B[di]CR[di]
;W[ei]CR[ei]
(;B[ga]CR[ga]
;W[ha]CR[ha]
;B[fa]CR[fa]
;W[id]CR[id]C[jigo.])
(;B[id]CR[id]
;W[fa]CR[fa]
(;B[ic]CR[ic]
;W[ib]CR[ib]
;B[ea]CR[ea]
;W[ga]CR[ga]C[jigo.])
(;B[ea]CR[ea]
;W[ga]CR[ga]
;B[ic]CR[ic]
;W[ib]CR[ib]C[jigo.])))
(;B[ei]CR[ei]
(;W[fh]CR[fh]C[CHOICE]
(;B[di]CR[di]
;W[fa]CR[fa]
(;B[ea]CR[ea]
;W[ga]CR[ga]
;B[id]CR[id]
;W[ic]CR[ic]C[RIGHT])
(;B[id]CR[id]
;W[ic]CR[ic]
;B[ea]CR[ea]
;W[ga]CR[ga]C[RIGHT]))
(;B[ga]CR[ga]
;W[ha]CR[ha]
(;B[fa]CR[fa]
;W[ah]CR[ah]
(;B[ae]CR[ae]
;W[di]CR[di]
(;B[ci]CR[ci]
;W[fi]CR[fi]
;B[ai]CR[ai]
;W[id]CR[id]
;B[ah]CR[ah]
;W[di]CR[di]TW[ia][ib][gc][ic][ed][gd][ee][ge][cf][df][ef][ff][eg][fg]TB[aa][ba][ca][da][ea][ab][cb][ac][bc][ad][ig][ii]C[white wins.])
(;B[id]CR[id]
;W[ic]CR[ic]
;B[ci]CR[ci]
;W[fi]CR[fi]
;B[ai]CR[ai]
;W[di]CR[di]
(;B[eg]CR[eg]
(;W[ef]CR[ef])
(;W[ah]CR[ah]))
(;B[ah]CR[ah]
;W[ei]CR[ei]TW[ia][ib][gc][ed][gd][ee][ge][cf][df][ef][ff][eg][fg]TB[aa][ba][ca][da][ea][ab][cb][ac][bc][ad][ig][ii])))
(;B[ai]CR[ai]
;W[di]CR[di]
;B[ci]CR[ci]
;W[id]CR[id]
;B[ae]CR[ae]
;W[fi]CR[fi]
;B[ah]CR[ah]
;W[di]CR[di]C[white wins. (any ko threat costs 1 point)]))
(;B[di]CR[di]C[this may work, but G9 is such a bad move that it cannot be included in any correct answer.])))
(;W[di]CR[di]C[CHOICE]
(;B[eg]CR[eg]
;W[fi]CR[fi]
;B[df]CR[df]C[RIGHT white collapses.])
(;B[ci]CR[ci]
;W[ah]CR[ah]
;B[ai]CR[ai]
;W[fh]SQ[ei]CR[fh]C[white wins. (white will win the ko at marked stone, E1)])))
(;B[eg]CR[eg]
;W[dc]CR[dc]
(;B[ei]CR[ei]
;W[fh]CR[fh]
(;B[di]CR[di]
;W[fa]CR[fa]
(;B[ea]CR[ea]
;W[ga]CR[ga]
;B[id]CR[id]
;W[ic]CR[ic]C[jigo.])
(;B[id]CR[id]
;W[ic]CR[ic]
;B[ea]CR[ea]
;W[ga]CR[ga]C[jigo.]))
(;B[ga]CR[ga]
;W[ha]CR[ha]
(;B[fa]CR[fa]
;W[ah]CR[ah])
(;B[di]CR[di]
;W[fa]CR[fa]
(;B[ea]CR[ea]
;W[ga]CR[ga]
;B[id]CR[id]
;W[ic]CR[ic]C[jigo.])
(;B[id]CR[id]
;W[ic]CR[ic]
;B[ea]CR[ea]
;W[ga]CR[ga]C[jigo.]))))
(;B[fh]CR[fh]
;W[ei]CR[ei]
;B[di]CR[di]
;W[fi]CR[fi]C[white wins])))
(;B[ae]CR[ae]
;W[dd]CR[dd]
(;B[di]CR[di]
;W[ei]CR[ei]
(;B[ga]CR[ga]
;W[ha]CR[ha]
;B[fa]CR[fa]
;W[id]CR[id]C[jigo.])
(;B[id]CR[id]
;W[fa]CR[fa]
(;B[ic]CR[ic]
;W[ib]CR[ib]
;B[ea]CR[ea]
;W[ga]CR[ga]C[jigo.])
(;B[ea]CR[ea]
;W[ga]CR[ga]
;B[ic]CR[ic]
;W[ib]CR[ib]C[jigo.])))
(;B[ei]CR[ei]
(;W[fh]CR[fh]C[CHOICE]
(;B[di]CR[di]
;W[fa]CR[fa]
(;B[ea]CR[ea]
;W[ga]CR[ga]
;B[id]CR[id]
;W[ic]CR[ic]C[RIGHT])
(;B[id]CR[id]
;W[ic]CR[ic]
;B[ea]CR[ea]
;W[ga]CR[ga]C[RIGHT]))
(;B[ga]CR[ga]
;W[ha]CR[ha]
(;B[fa]CR[fa]
;W[di]CR[di])
(;B[di]CR[di]C[this may work, but G9 is VERY BAD and cannot be included in any corroct answer.])))
(;W[di]CR[di]C[CHOICE]
(;B[eg]CR[eg]
;W[fi]CR[fi]
;B[df]CR[df]C[RIGHT white collapses.])
(;B[ci]CR[ci]
;W[fi]CR[fi]
(;B[bi]CR[bi]
;W[di]CR[di]C[white wins.])
(;B[eg]CR[eg]
;W[di]CR[di]
;B[bi]CR[bi]
;W[dc]CR[dc]C[white wins.]))))
(;B[eg]CR[eg]
;W[dc]CR[dc]
(;B[ei]CR[ei]
;W[fh]CR[fh]
;B[di]CR[di]
;W[fa]CR[fa]
(;B[id]CR[id]
;W[ic]CR[ic]
;B[ea]CR[ea]
;W[ga]CR[ga]C[jigo.])
(;B[ea]CR[ea]
;W[ga]CR[ga]
;B[id]CR[id]
;W[ic]CR[ic]C[jigo.]))
(;B[fh]CR[fh]
;W[ei]CR[ei]
;B[di]CR[di]
;W[fi]CR[fi]C[white wins.])))
(;B[dd]CR[dd]
;W[ae]CR[ae]C[oops.])
(;B[ef]CR[ef]
;W[ae]CR[ae]C[too big.])
(;B[eg]CR[eg]
;W[ae]CR[ae]C[black cannot do anything.]))
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