(;
AB[dj][pj][pp][jp][dp][pn][oq]
AW[nq][np][qq]
TR[qq]
C[Black's response to White's marked stone?

Source:
    American Go Journal, Vol. 20, No. 2, pp. 16-17, May 1986, "Ten Commandments of Go"]
(;
B[qp]
C[White's corner invasion was a big overplay, hoping that Black answers incorrectly by blocking on the side here.

Black is too concerned about the corner.];
W[or]
C[Now White can hane to begin to form a base on the bottom in sente.]
)
    (;
    B[or]
    C[Black should play the powerful descent at the bottom.];
    W[qo]
    C[White can now make life in the corner, but ... ];
    B[po];W[qn];B[qp];W[rp];B[qm];W[rr];B[rm];W[so]
    LB[nn:a][lp:b]
    C[... White ends in gote.

But next, developing toward the center with A or B puts Black on the way to an overwhelming win. ]
    )
)

