(;
GM[1]
SZ[19]
AW[cn][co][dm][ek][ed][ee][dg][cg][gj][gl][fl][em][cb][db][dc][cd][df][bf]
AB[jp][jd][pj][dj][dp][pd][pp][dd][jj][cp][dn][en][cf][eh][gh][ej][dk][fm][gm][hm][ec][eb][cc][de][ce][ef]
C[Problem 31. Black to play.  

In spite of his loss in the upper left corner in Problem 27, Black is still ahead. Where should he play next ? ]
(;B[bl]
TE[2]
C[Correct Answer.  

The diagonal peep of Black 1 is the vital point. ]
(;W[cm]
C[White has to connect at 2. ]
;B[hl]
C[Black now attacks the white group ... ]
;W[hk];B[ik];W[hi];B[hh];W[ii];B[jg]
C[... with the sequence to 9, building a moyo at the bottom. White's stones are almost dead, but, even if then do manage to somehow live, it will be in gote and Black has already made a vast moyo in more than half the board. <= ]
)
(;W[cl]
C[If White 2, ... ]
;B[ck]
C[... Black will play 3 and ... ]
;W[cm]
C[... White will eventually have to come back and play 4. <= ]
))
(;B[gc]
C[How the game continued.  

Defending the two stones in the upper left with Black 1 was small. ]
;W[hl]
C[The center was important and White immediately started maneuvers there with 2 ... ]
;B[im];W[jk]
LB[fi:A]
C[... and 4. These moves strengthened White's weak stones. White could also aim at A; Black soon found himself in serious trouble. <= ]
)
)