invalid problem set
Problem | 14292 |
Created | 2010-12-23 |
Name | 7X7 go board problem #2 |
Source | |
Rating | |
Difficulty | 9 dan |
Average Solve Time | 75 secs |
User Attempts |
5 / 161 |
Solve Ratio Rating | 6 dan |
| rating history |
white should lose 7points or less(or win). probably there are some missing variations. please comment.
(modified)
(;SZ[7]AB[dd]AB[de]AB[ec]AB[eb]AB[cf]AB[df]AW[ce]AW[cd]AW[dc]AW[cc]AW[bf]AW[ed]AB[bg]AP[goproblems]
(;W[ee];B[ef]
(;W[ff];B[fc];W[fe];B[be];W[af];B[ae];W[eg];B[ag]
(;W[dg];B[fg];W[gg];B[ge];W[gd];B[fd];W[db];B[gc];W[gb];B[bb])
(;W[bf];B[af];W[dg];B[fg];W[gg];B[ge];W[gd];B[fd];W[db];B[gc];W[gb];B[bb]))
(;W[fc];B[fb];W[ff];B[gc];W[fe];B[be];W[gd];B[fd];W[af];B[ge];W[bd];B[fg]))
(;W[af];B[fd];W[db];B[da];W[ca];B[ea])
(;W[db];B[fd]
(;W[ee];B[be]
(;W[fe];B[fc];W[ef];B[fg])
(;W[af];B[ae];W[fe];B[fc];W[ef];B[dg]))
(;W[af];B[da];W[ca];B[ea])
(;W[be];B[da];W[ca];B[ea])
(;W[ea];B[fa];W[da];B[be]))
(;W[be];B[fd];W[db];B[da];W[ca];B[ea])
(;W[fd]
(;B[db]C[CHOICE]
(;W[cb];B[ee];W[da];B[fc];W[ea];B[fa];W[ca];B[fe];W[af])
(;W[fc];B[cb]
(;W[bb];B[fb];W[ff];B[be];W[bd];B[af];W[ac];B[ae];W[ad];B[ba];W[ca];B[da];W[gb];B[ab];W[aa];B[ca])
(;W[be];B[ff]))
(;W[ef];B[ee];W[fe];B[ff];W[fg];B[eg];W[gf];B[gg];W[fc];B[cb];W[fg];B[be])
(;W[ee];B[ef];W[ff];B[be];W[cb];B[fc];W[ge];B[gc];W[gd];B[fa]
(;W[da];B[gb];W[af];B[ae];W[eg];B[ag]
(;W[bf];B[ab])
(;W[dg];B[ab]))
(;W[af];B[ae];W[eg];B[ag]
(;W[bf];B[ab])
(;W[dg];B[ab])))
(;W[ff]
(;B[be]C[CHOICE]
(;W[cb]
(;B[bb]C[]
(;W[ba];B[fc]
(;W[da];B[gd]
(;W[ge];B[fe];W[ee];B[ef];W[gc];B[gb];W[gd];B[fa];W[af];B[ae];W[eg];B[ab])
(;W[fe];B[bd];W[bc];B[ab]
(;W[ad];B[af];W[fa];B[ea];W[ca];B[fb])
(;W[ac];B[af];W[fa];B[ea];W[fb];B[ca];W[aa];B[gb];W[ge];B[bb];W[da];B[ga])))
(;W[gd];B[da]
(;W[af];B[ae]
(;W[gc];B[ca];W[bc];B[aa];W[ac];B[gb];W[fa];B[fe];W[ee];B[ef];W[ge];B[fg]
(;W[eg];B[dg];W[gf]C[RIGHT])
(;W[fb];B[gf];W[gg];B[eg])
(;W[ab];B[gf];W[gg];B[eg])
(;W[gf]C[RIGHT]))
(;W[fa];B[ab]
(;W[bc];B[ca];W[ac];B[ag];W[gc];B[bd];W[aa];B[bb])
(;W[gc];B[bc];W[bd];B[ag])))
(;W[gc];B[ca];W[bc];B[aa];W[ac];B[ad];W[af];B[gb];W[fa];B[cg];W[fb];B[ag])
(;W[ab];B[ef];W[fa];B[gc];W[fe];B[gf])
(;W[fa];B[ca];W[bc];B[aa];W[ac];B[ad];W[af];B[ba]))
(;W[ef];B[bd];W[bc];B[ab])
(;W[af];B[ae]
(;W[ef];B[ac]
(;W[bc];B[ab];W[ad];B[ag];W[aa];B[ab])
(;W[ab];B[aa]
(;W[ad];B[bd];W[ab];B[ca];W[da];B[aa])
(;W[bd];B[ag];W[ab];B[ee];W[fe];B[aa])))
(;W[gb];B[gc];W[gd];B[da];W[fa];B[ca];W[bc];B[aa];W[ac];B[ef];W[fe];B[gf])
(;W[gd];B[gc]
(;W[da]
(;B[ea];W[ca];B[bc];W[bd];B[ag];W[ad];B[fe];W[ee];B[ef];W[ge];B[fg];W[bf];B[af];W[gb];B[gf];W[gg];B[aa];W[ab];B[gf];W[cg]C[RIGHT])
(;B[bc];W[bd];B[ag]
(;W[ab];B[fe];W[ee];B[ef];W[ge];B[fg];W[gb];B[fa];W[ca];B[gf];W[gg];B[ad];W[ac];B[gf];W[bf];B[fe];W[af];B[cg]C[RIGHT])
(;W[ad];B[fe];W[ee];B[ef];W[ge];B[fg];W[gb];B[gf];W[gg];B[ea];W[ca];B[gf];W[bf];B[fe];W[af];B[cg])))
(;W[ef];B[ab];W[bd];B[ag];W[ad];B[ee];W[fe];B[da];W[ca];B[fa]LB[dg:A];W[dg];B[eg];W[fg];B[gf]))))
(;W[bd];B[af];W[ba];B[fc];W[da];B[ea];W[ca];B[ad]
(;W[ac];B[ab];W[ae];B[fe];W[bf];B[ee];W[ag];B[cg])
(;W[ab];B[fe];W[ee];B[ef];W[ge];B[gc];W[gd];B[fg];W[gb];B[gf];W[gg];B[bc];W[ac];B[gf])))
(;B[fc]C[CHOICE]
(;W[gd];B[ca];W[ba];B[bd];W[bc];B[ac];W[da];B[ab])
(;W[af]
(;B[ae]C[CHOICE]
(;W[gd];B[ba]
(;W[ca];B[bb];W[bc];B[da];W[ab];B[fa];W[dg];B[eg];W[ef];B[ag];W[fg];B[ac];W[aa];B[bb];W[ad];B[bd])
(;W[bb];B[ca];W[bd];B[ag]
(;W[da];B[ea];W[ac];B[ad];W[gc];B[ab];W[aa];B[da])
(;W[gc];B[gb];W[fa];B[ac];W[fb];B[da])))
(;W[da];B[gd]
(;W[ge];B[fe];W[ee];B[ef];W[gc];B[gb]
(;W[gd];B[fa];W[eg];B[ab])
(;W[ea];B[gd];W[bd];B[fe];W[ad];B[fa];W[ca]C[RIGHT]))
(;W[fe];B[fa];W[gb];B[bd];W[bc];B[ag];W[gc];B[ba])))
(;B[ef]C[CHOICE]
(;W[fe];B[fg]
(;W[gf];B[gd];W[bd];B[ca];W[ba];B[da];W[bb];B[gc];W[ae];B[eg];W[cg]
(;B[dg];W[ag];B[ge];W[cg];B[ad];W[gb];B[fa];W[ac];B[bg];W[fb];B[ga];W[cg]C[RIGHT])
(;B[ge]C[CHOICE];W[ag];B[ee]C[RIGHT]))
(;W[bd]C[NOTTHIS]))
(;W[gd];B[bd];W[bc];B[fe];W[ee];B[gf];W[ge];B[fg];W[gg];B[ca];W[ba];B[gf];W[da];B[fe]
(;W[ea];B[fa];W[ca];B[gc])
(;W[fa];B[ea];W[ff];B[gc];W[gg];B[eg]))))
(;W[da];B[gd]
(;W[ge];B[fe];W[ee];B[ef];W[gc];B[gb];W[gd];B[fa];W[af];B[ae];W[eg];B[ab])
(;W[fe];B[bd];W[fa];B[ea];W[ca];B[fb];W[gb];B[ga];W[bc];B[gc];W[af];B[cg];W[ad];B[eg])))
(;B[bd];W[bc];B[fc];W[af];B[ef];W[fe];B[fg];W[gf];B[gd];W[ad];B[gc];W[ae];B[ge];W[ag];B[ee];W[cg];B[ca];W[ba];B[da]C[RIGHT]))
(;W[bd];B[af];W[cb];B[bb];W[ba];B[fc];W[da];B[ea];W[ca];B[ad]
(;W[ac];B[ab];W[ae];B[fe];W[bf];B[ee];W[ag];B[cg])
(;W[ab];B[fe];W[ee];B[ef];W[ge];B[gc];W[gd];B[fg];W[gb];B[gf];W[gg];B[bc];W[ac];B[gf])))
(;B[ef];W[cb];B[fc];W[gd];B[gf];W[da]C[RIGHT])))
(;B[ee];W[db];B[fc];W[ea];B[fa];W[da];B[fe];W[af]C[RIGHT])))
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