(;GM[1]FF[4]SZ[19]
GN[[Bent four in the corner\]]
PC[http://senseis.xmp.net/?TsumegoFromGames52/Solution]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?TsumegoFromGames52/Solution

[Bent four in the corner\]]
PL[B]

AB[pa][pb][qb][rb][oc][pc][rc][md][pd][me][ne][oe][pe]
AW[ma][oa][ra][ob][lc][mc][nc][qc][ld][nd][qd][le][qe][lf][mf][nf][of][pf][qf]

;B[rd]C[B1]MN[1]
;W[re]C[W2]MN[2]
;B[sd]C[B3]MN[3]
;W[sb]C[W4]MN[4]

;
)
