(;GM[1]FF[4]SZ[12:8]
GN[white to play]
PC[https://senseis.xmp.net/?Corridor]AP[GoWiki:2009]
DT[2019-12-22]
C[Diagram from https://senseis.xmp.net/?Corridor

white to play]
PL[W]

AB[aa][ab][fb][gb][hb][ib][jb][kb][ac][kc][ad][gd][hd][id][jd][kd][ae][af][bf][gf][hf][if][jf][kf][ag][bg][ah][bh][ch][dh][eh][fh][gh][hh][ih][jh][kh]
AW[ba][ca][da][ea][fa][ga][ha][ia][ja][ka][la][bb][lb][bc][cc][dc][ec][fc][lc][bd][dd][ld][be][ce][de][ee][fe][ke][le][cf][ff][lf][cg][dg][eg][fg][lg][lh]
LB[gc:a][gg:b]


;LB[gc:a][gg:b]
)
