(;GM[1]FF[4]SZ[19]
GN[Correct defense for black?]
PC[http://senseis.xmp.net/?GokyoShumyoSection4Problem12/Attempts]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?GokyoShumyoSection4Problem12/Attempts

Correct defense for black?]
PL[W]

AB[cb][fb][bc][gc][bd][cd][dd][fd][ee][df][ef]
AW[db][dc][ec][ad][ed][be][ce][de][cg]

;W[da]C[W1]MN[1]
;B[ab]C[B2]MN[2]

;
)
