(;GM[1]FF[4]SZ[19]
GN[the tenuki at 4 destorys w himself, how?]
PC[http://senseis.xmp.net/?Sai1029/sai1029sFunFunProblem]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?Sai1029/sai1029sFunFunProblem

the tenuki at 4 destorys w himself, how?]
PL[B]

AB[cb][bc][fd][be][de][fe][cf][df][ef][bg][dg][fg][gg][gh][gi][cj][dj][ej][qp][dq]
AW[db][cc][bd][cd][dd][ed][qd][ce][ee][ff][gf][eg][hg][bh][ch][dh][eh][fh][di][ei][fj][do]

;B[fi]C[B1]MN[1]
;W[gj]C[W2]MN[2]
;B[ih]C[B3]MN[3]
;W[dl]C[W4]MN[4]

;
)
