(;
GM[1]
SZ[19]
AW[ec][ed][qq][pq][op][kq][cp][dp][dn][ep][fp][eq][gq][hq][bh][ci][cg][dg][ef]
AB[dc][cd][ic][pd][pm][qp][ro][rq][fq][gp][fo][fr][er][dr][cq][df][cf][bf][bg]
LB[gh:E][di:D][eh:C][ff:B][eg:A]
C[Supplement to Problem 100: The best way for Black.  

Instead of cutting at A in the Problem Diagram, ... ]
;B[if]
TE[2]
C[... Black should have simply jumped to 1. ]
;W[eg]
C[Connecting at White 2 in now necessary. ]
;B[md]
C[Black can then stake out his own moyo in the upper right with 3. <= ]
)
)