(;FF[4]
GM[1]
PC[OGS: https://online-go.com/game/11972185]
BR[15k]
WR[13k]
CP[online-go.com]
RE[?]
SZ[19]
KM[6.5]
RU[japanese]
;AB[aj][bk][ck][cj][dk][ek][fk][fj][bh][dh][dg][eh][fg][ag][bf][cf][ce][de][dd][ed][fd][ec][fb][fa][gc][hc][ic][id][ie][jd][hf][ig][jf][ih][ii][ij][ik][hk]
AW[ak][al][bl][cl][dl][el][ej][ei][fi][fh][gh][gg][gf][ge][fe][ef][eg][gj][gk][hj][hl][gm][fm][af][ae][be][bd][cd][cc][dc][eb][da][cb][fl][hh][hi]
MA[fl]C[Black chose to tenuki after white played the marked stone.
This happened in late endgame, so the only other plays on the board were worth +/- a few points. Grab the candy.
Updated 3/14/2018 - all comments addressed]
(;W[ai]
;B[bj]C[It's a good thought, but doesn't go anywhere.]
)
(;W[ci]
(
;B[di]C[Black made a greedy mistake.]
;W[dj]
;B[le]C[Black plays tenuki again! Grab a couple more points.]
(;W[bj]
;B[bi]
;W[ai]
;B[ah]
;W[aj]
;B[ch]
;W[cj]C[RIGHT This is okay, but you can score a couple more points.]
)
(;W[bi]
;B[ai]
(;W[ch]
;B[bg]
;W[bj]
;B[ah]C[RIGHT]
)
(;W[bj]
;B[ah]
;W[ch]C[RIGHT]
)
)
(;W[ai]
;B[bi]
;W[bj]
;B[ch]
;W[cj]
;B[ah]
;W[aj]C[RIGHT This is okay, but you can score a couple more points.]
)
)
(;B[bi]
;W[dj]
;B[bj]
;W[di]
;B[ch]C[RIGHT As user Elessar noted, this is black's correct line of play.]
)
)
)