(
;AB[ah][bh][ch][ci][dj][dk][ei][el]
AW[bi][bj][cj][ck][dl][dm][dn][cp]
C[Black to play best move and keep sente.]
(
;B[aj]
;W[ak]
;B[ai]
;W[bl]
C[RIGHT]
C[Optimun reduction and you kept sente. Well done.]
)
(
;B[ai]
;W[aj]
C[You kept sente although there is a better move than the hane.]
)
(
;B[cl]
;W[bl]
(
;B[ai]
;W[aj]
C[Look elsewhere for the first move.]
)
(
;B[aj]
;W[ak]
;B[ai]
;W[cm]
C[This is the optimun reduction although you have lost a potential ko threat.]
)
)
(
;B[ak]
;W[ai]
C[White has got the maximum territory and gained a prisoner.]
)
)