(;GM[1]FF[4]SZ[19]
GN[Premature hane]
PC[https://senseis.xmp.net/?GokyoShumyoSection4Problem65/Solution]AP[GoWiki:2009]
DT[2022-06-23]
C[Diagram from https://senseis.xmp.net/?GokyoShumyoSection4Problem65/Solution

Premature hane]
PL[B]

AB[db][gb][dc][gc][gd][de][ee][fe]
AW[eb][fb][hb][hc][jc][ed][fd][ge][he]

;B[ea]C[B1]MN[1]
;W[ga]C[W2]MN[2]
;B[ec]C[B3]MN[3]
;W[fc]C[W4]MN[4]

;
)
