(;
GM[1]
SZ[19]
AW[dd][df][dj][dp][hq][ho][jo][nm][pn][qn][rn][rm][ro][sn][qp][qq][rq][sp][pc][qc]
AB[jq][lp][pq][pp][po][qo][on][om][ol][pm][qm][ql][rl][oc][pd][fc][jd][pf]
TR[qc]
C[Problem 96. Black to play.  

White extends with the marked stone, how should Black respond ? ]
(;B[ob]
TE[2]
C[Correct Answer.  

When Black descends to 1, ... ]
;W[re];B[rf];W[qe];B[qf];W[pe];B[oe];W[qd];B[od];W[pb]
C[... the sequence to 10 is inevitable. White is alive in the corner, but ... ]
;B[fe]
C[... Black ends up with a vast moyo when he jumps to 11. <= ]
)
(;B[qd]
C[Failure.  

Black can get the corner territory by blocking with 1 ... ]
;W[ob]
(;B[nb]
C[... and 3, but, ... ]
;W[nc];B[od];W[mb];B[pb];W[na];B[qb];W[ld]
C[... after 10, White's stones are secure and the black stones at the top left are vulnerable. <= ]
)
(;B[nc]
LB[ob:2]
C[Failure.  

If Black extends to 3 in response to White 2, the result is the same as in the Failure Diagram in Problem 92. <= ]
))
)