(;SZ[19]AW[br]AW[cr]AW[dr]AB[ar]AB[bq]AB[cq]AB[dq]AB[es]AB[er]AW[bp]AW[cp]AW[dp]AW[ep]AB[eq]AW[fp]AW[fq]AW[fr]AW[gs]AW[hr]AW[bn]GM[1]FF[4]CA[UTF-8]RU[Japanese]KM[0]TM[1800,0,30,5]PW[kiet]PB[adam]AE[fs]PL[W]
(;W[bs]
(;B[ds]
(;W[cs];B[as]
(;W[cr]C[white forms nakade (dead shape)RIGHT])
(;W[cs];B[cr])
(;W[br];B[cr])
(;W[bs];B[cr]))
(;W[as];B[cs]
(;W[br];B[bs])
(;W[cr];B[br]))
(;W[fs];B[aq]
(;W[cs];B[as];W[cr]C[dead shapeRIGHT])
(;W[ap]C[black cannot push and white can eventually form dead shapeRIGHT]))
(;W[ap];B[cs]
(;W[aq];B[as];W[br];B[cr];W[bs];B[ar])
(;W[fs];B[as]))
(;W[aq];B[ap]
(;W[fs];B[aq];W[ao]C[RIGHT])
(;W[cs];B[as];W[cr]C[RIGHT])
(;W[ao];B[cs]
(;W[fs];B[as])
(;W[aq];B[as];W[br];B[cr];W[bs];B[ar]))))
(;B[cs];W[ds];B[aq]
(;W[fs]C[RIGHT])
(;W[ap]C[RIGHT])))
(;W[cs];B[bs]C[black gets a ko])
(;W[ds];B[bs]C[black alive])
(;W[fs];B[bs]
(;W[ds];B[cs])
(;W[ap];B[cs];W[aq];B[ds]))
(;W[ap];B[bs]
(;W[aq];B[ds]C[ko])
(;W[fs];B[aq]))
(;W[as];B[bs])
(;W[aq];B[bs]C[ko]))