(;
GM[1]
SZ[19]
AW[dc][gc][dh][pp]
AB[fe][ce][dp][pd]
LB[ce:1][dh:2][fe:3][gc:4]
C[Problem 53. Black to play.  

Black has played the two corner star points on diagonally opposite sides of the board. After the sequence from Black 1 to White 4, how should Black continue ? ]
(;B[dk]
LB[hd:A]

TE[2]
C[Correct Answer.  

Black should either make a pincer around 1 or press White at A. <= ]
)
(;B[dj]
TE[2]
C[Correct Answer.  

A severe one-space against the white stone is also frequently played in professional games. ]
;W[fh]
C[After White 2, ... ]
;B[he]
C[... Black forces with 3, ... ]
;W[jd];B[hh]
C[... then caps at 5. ]
;W[ej];B[dk];W[di];B[ek];W[fj];B[gl]
C[The sequence to Black 11 is one possible continuation. <= ]
)
(;B[hd]
TE[2]
C[Correct Answer.  

Also correct. <= ]
)
)