(;GM[1]FF[4]CA[UTF-8]AP[CGoban:2]ST[2] RU[Japanese]SZ[13]KM[0.00]TM[] PW[White]PB[Black]AW[ba][ab][bc][cc][dc]AB[eb][ac][ec][ad][bd][cd][dd][ed]C[Black plays, White dies. (The first move is the vital point.) ] (;B[da]CR[da] ;W[ca]CR[ca] ;B[cb]LB[ca:2][da:1]CR[cb]C[RIGHT Black 1 is the vital point of this shape. After White 2, Black 3 destroys White's eye shape taking advantage of its shortage of liberties. If White 2 at 3, Black 2. White is dead.]) (;B[cb]CR[cb] ;W[db]CR[db] ;B[da]CR[da] ;W[bb]LB[da:3][cb:1][db:2]CR[bb]C[Black 1 is wrong. White is alive with 2 and 4. ]) (;B[ca]CR[ca] ;W[da]CR[da] (;B[cb]CR[cb] ;W[db]CR[db]) (;B[db]CR[db] ;W[cb]CR[cb] ;B[ea]CR[ea] ;W[ca]CR[ca]) (;B[ea]CR[ea] ;W[cb]CR[cb] ;B[db]CR[db] ;W[ca]CR[ca])))