(;GM[1]FF[4]CA[UTF-8]AP[CGoban:2]ST[2] RU[Japanese]SZ[7]KM[0.00] PW[Weiß]PB[Schwarz]AW[ca][da][ea][cb][fb][gb][ec][ad][bd][dd][ed][fd][ce][de][bf][df][ff][dg][gg]AB[aa][ba][fa][eb][ac][bc][cc][dc][fc][be][ee][fe][ge][ef][eg][fg]C[Black to play and draw!] (;B[bb]CR[bb] (;W[ga]LB[db:A]CR[ga]C[W A is also very interesting - please take a look at it!] ;B[db]CR[db] ;W[cd]CR[cd] (;B[fa]CR[fa] ;W[ea]CR[ea] (;B[da]CR[da] ;W[gc]CR[gc] (;B[gf]CR[gf] ;W[gd]CR[gd] ;B[fa]CR[fa]C[..and Black connects the ko: jigo! RIGHT]) (;B[fa]CR[fa] ;W[gd]CR[gd] ;B[gf]CR[gf] ;W[ea]CR[ea]C[White connects the ko and wins by one point. Black took the ko too early!])) (;B[gd]CR[gd] ;W[gc]CR[gc] ;B[gf]CR[gf] ;W[fa]CR[fa] ;B[da]CR[da] ;W[fc]CR[fc]C[Jigo! RIGHT]) (;B[gf]CR[gf] ;W[da]CR[da] ;B[ca]CR[ca] ;W[gd]CR[gd] ;B[fa]CR[fa] ;W[ea]CR[ea] ;B[da]CR[da] ;W[gc]CR[gc] ;B[fa]CR[fa]C[... and Black connects the Ko: Jigo! RIGHT])) (;B[gd]CR[gd] ;W[ab]CR[ab]C[Uh-oh :)])) (;W[db]CR[db] ;B[eb]CR[eb] ;W[db]CR[db] ;B[da]CR[da] ;W[ea]CR[ea] ;B[cd]CR[cd] (;W[ca]CR[ca]C[Since Black has one ko threat more than White, White can't win the ko. Ignoring the first threat is best!] ;B[af]CR[af] ;W[gd]CR[gd] ;B[gf]CR[gf] ;W[cb]CR[cb] ;B[ae]CR[ae] ;W[bg]CR[bg]C[After some hectic play, Black wins by one point!]) (;W[ae]LB[ca:A]CR[ae]C[This is two points worse than W A.] ;B[eb]CR[eb] ;W[gd]CR[gd] ;B[gf]CR[gf] ;W[ea]CR[ea] ;B[af]CR[af] (;W[ag]CR[ag] ;B[eb]CR[eb] ;W[gc]CR[gc] ;B[ea]CR[ea] ;W[ga]CR[ga] ;B[cb]CR[cb]C[Black wins by three points!]) (;W[ca]CR[ca] ;B[be]CR[be] ;W[cb]CR[cb] ;B[bg]CR[bg] ;W[cf]CR[cf] ;B[ae]CR[ae] ;W[cg]CR[cg] ;B[ag]CR[ag]C[Black wins by three points!])))) (;B[db]CR[db] ;W[bb] ;B[ab]CR[ab] ;W[ea]LB[ga:B][bb:C][cb:A]TR[db]CR[ea]C[Black is dead! W A also kills the group. W B in answer to the marked black stone would have been a mistake, allowing Black to reach the solution with B C.]) (;B[gf]CR[gf] ;W[db]CR[db]C[The group in the bottom right was alive already....]) (;B[gd]CR[gd] ;W[gc]CR[gc] ;B[gf]CR[gf] ;W[db]CR[db]C[B G4 was gote!]))