(;GM[1]FF[4]CA[UTF-8]AP[CGoban:2]
SZ[19]RU[Japanese]KM[5.50]TM[1800]
GN[White (W) vs. Black (B)]PB[Black]PW[White]DT[1999-07-27]SY[Cgoban 1.9.2]
;AW[eo][fo][cp][dp][gp][cq][br][cs]AB[ep][fp][dq][fq][cr][dr][er]C[what can white do?
]PL[W]
(;W[gr]
;B[gq]
(;W[hq]
;B[hp]
(;W[go]
;B[hr]
(;W[iq]
;B[fr]
(;W[ir]
;B[gs]C[RIGHT
white gets good shape and sente
])
(;W[io]
;B[ir]))
(;W[ir]
;B[iq]))
(;W[fr]CR[fr]
;B[go]CR[go]
(;W[es]CR[es]
;B[hr]CR[hr]
(;W[ds]CR[ds]
;B[iq]CR[iq]C[although white captures four stones, black gets very strong on the outside. sealing black in completely is much better])
(;W[iq]CR[iq]
;B[gs]CR[gs]))
(;W[iq]CR[iq]
;B[ip]CR[ip])))
(;W[hp]
;B[hq]))
(;W[gq]
;B[gr]
(;W[hr]
;B[hs]
(;W[is]
;B[gs]C[not best shape for white
])
(;W[ir]C[black can cut
]))
(;W[ho]
;B[iq])
(;W[hq]
;B[hr]))
(;W[hq]
;B[gr])
(;W[go]
;B[hq])
(;W[hr]
;B[gr]C[black gets shape
])
(;W[ds]
;B[gr])
(;W[fr]
;B[gr])
(;W[es]
;B[gr])
(;W[do]CR[do]C[this weakness is not worth worrying about]))