(;
AB[qd][dd][qn][pj][od][lc][oc][qc][mb][pg]
AW[dp][pp][nq][nc][pb][nd][ob][nf][nb][id]
TR[id]
C[Black's response to White's marked overplay?

This game has reverse komi (Black has the komi instead of White), so keep in mind that Black can afford to play solidly.

Source:
    Jujo Jiang 9P teaching game.
    American Go Journal, Vol. 28, No. 3, pp. 12-13]
(;
B[le]
C[But this jump is too submissive.];
W[kd]
C[Now White has this forcing move.];
B[ld];W[kb]
(;
B[kc]
C[A "thank you" move.  Black forces White to defend, but ...];
W[jc]
C[... White is happy to make good shape with the weak group on the left.];
B[lb]
C[Black prevents White from playing here to connect.];
W[oe]
C[White strengthens the group in sente.];
B[pf]
C[Black defends the upper right stones, but ...];
W[mg]
C[... White has time to move out and lean on Black's top group.

For reference, a few more moves from the game follow.];
B[lg];W[lh];B[kg];W[oh];B[kh];W[li]
(;
B[pi]
C[This game move is thick, but is the losing move!  Black does not need to defend here.];
W[ki]
C[White is ahead in the all-important battle for cetner power.]
)
    (;
    B[ki]
    C[Black must continue here, fighting for center control.];
    W[qi]
    C[Black can survive this attack, as the following sequence shows.];
    B[pi];W[ph];B[qh];W[qj];B[qk];W[rh];B[qg];W[pk];B[oj];W[rk];B[ql];W[rg];B[rf];W[rl];B[rm];W[pl];B[qm];W[nk];B[nj];W[mk];B[mj];W[lj];B[sg];W[rj];B[sl];W[si];B[sk];W[mi];B[sm];W[sj];B[sf];W[ni];B[sh]
    )
)
    (;
    B[lb]
    C[Simply blocking here is better.]
    )
)
    (;
    B[kd]
    C[Black should have played here, which is safe and thick.];
    W[mg];B[kg]
    C[Black has more breathing room than the game line, and safely splits White's groups.]
    )
)

