(;
GM[1]
SZ[19]
AW[hc][jd][ld][qd][pf][qj]
AB[dc][ce][jc][kd][nd][oc][qb]
LB[kd:1]
C[Problem 52. White to play.  

Although it looks like a tesuji, Black 1 is a dubious move. How should White respond ? ]
(;W[kc]
TE[2]
C[Correct Answer.  

White should atari with 1 and ... ]
;B[ke];W[jb];B[lc];W[ic];B[kb]
(;W[jc];B[lb];W[fc]
LB[kf:B][le:A]
C[... play the moves to 9 (later White can start a fight with A, Black B). <= ]
)
(;W[lb]
LB[jc:@]
C[Instead of connecting at @, White could opt for a ko by playing at 7. This could be dangerous for Black. <= ]
))
(;W[ke];B[kc];W[id];B[lc])
)