(;
AB[pd][cg][ci][fi][dk][dn][eo][fo][go][ho][io][cp][cq][dp][qp][br]
AW[dd][cf][fj][cl][dl][el][gl][ep][fp][gp][hp][dq][cr][er][bs]
PL[W]
C[White's response to the marked play?

Source:
    Chang Hao 9p v. Ryu Shikun 9p
    Tianyuan/Tengen Match
    American Go Journal, Vol. 35, No. 4, p. 56
    Originally from Weiqi World.]
TR[cg]
(;
W[gi]
C[In the game, White haned here without thinking, regretting the move afterwards.  This move is a classic case of playing in the wrong direction.];
B[df]
C[Black takes advantage of White's hane with this forcing hane.];
W[ce];B[gh]
(;
W[fh]
C[In the game, White makes matters worse by continuing with this cut/atari.  A complicated fighting sequence follows.

Eventually White loses this game, but the variations show how White could have avoided these problems.];
B[ei];W[ej];B[eh];W[fg];B[ff];W[gg];B[hh];W[gf];B[de];W[cc];B[fe]
)
    (;
    W[hi]
    C[White could have kept the game about even by simply extending.  But earlier variations show how White could have done better than even this position.]
    )
)
    (;
    W[dg]
    C[Instead, White should have haned from here.

The reader can compare the positions resulting from the following variations with the worse result that happened in the game.]
    (;
    B[gj];W[ei]
    (;
    B[ej];W[fk];B[eh];W[gi];B[fh];W[hj]
    )
        (;
        B[fk];W[ej];B[ek];W[gk];B[fl];W[fm];B[ck];W[hm];B[em]
        C[White gives up the 3 stones, but ...];
        W[bk];B[bj];W[cj];B[dj];W[di];B[cj];W[ch];B[bl];W[hj]
        C[... White gains a big outside.]
        )
    )
        (;
        B[dh];W[bg];B[gj];W[ch];B[fk];W[bi];B[fl]
        C[Again, White is clearly better than the game.]
        )
    )
)

