(;GM[1]FF[4]CA[UTF-8]AP[CGoban:2]ST[2]
RU[Japanese]SZ[19]KM[0.00]TM[]
PW[White]PB[Black]AW[dc][dk][el][cm][dm][cn][co][cp][iq]AB[pd][dl][em][fm][dn][do][po][dp][bq][cq][kq]LB[de:A][fo:F][io:I][kp:J][dq:B][eq:D][fq:G][kq:1][mq:K][dr:C][er:E][fr:H]C[black plays 1. best move for white?]PL[W]
(;W[de]CR[de]C[big but not urgent])
(;W[dq]CR[dq]
;B[eq]CR[eq]
;W[dr]CR[dr]
;B[er]CR[er]C[this doesn't work for white])
(;W[dr]CR[dr]
;B[dq]CR[dq]C[helps black fix shape])
(;W[eq]CR[eq]
;B[dq]CR[dq]C[helps black])
(;W[er]CR[er]C[RIGHT
this hurts black's shape and makes eye space])
(;W[fo]CR[fo]
;B[fq]CR[fq]C[black fixes])
(;W[fq]CR[fq]C[doesn't take advantage of black])
(;W[fr]CR[fr]C[not sente])
(;W[io]CR[io]
;B[gq]CR[gq]C[black fixes])
(;W[kp]CR[kp]
;B[lq]CR[lq]C[too early to run like this])
(;W[mq]CR[mq]))