(;GM[1]FF[4]SZ[19]
GN[dia. [4\]: bad hane - hane bad]
PC[http://senseis.xmp.net/?RTGProblem31]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?RTGProblem31

dia. [4\]: bad hane - hane bad]
PL[B]

AB[lb][mb][nc][oc][nd][pd][qd][pe][re]
AW[nb][ob][mc][pc][qc][dd][od][rd][oe][pf]

;B[qe]C[B1]MN[1]
;W[of]C[W2]MN[2]
;B[md]C[B3]MN[3]
;W[rf]C[W4]MN[4]

;
)
