(;GM[1]FF[4]SZ[13]
GN[White to play and win]
PC[http://senseis.xmp.net/?BeginnersEndgameExercise4/Attempts]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?BeginnersEndgameExercise4/Attempts

White to play and win]
PL[W]

AB[la][ab][bb][gb][hb][ib][jb][kb][mb][bc][ec][jc][lc][ad][cd][ed][fd][gd][jd][ld][md][ce][fe][he][je][me][cf][ef][ff][gf][hf][cg][fg][hg][ig][bh][ch][fh][gh][di][mi][dj][hj][ij][jj][mj][dk][ek][fk][gk][hk][mk][dl][fl][hl][jl][kl][ll][ml][em][gm][jm][lm]
AW[ca][da][fa][ga][ha][cb][eb][fb][cc][dc][fc][gc][hc][ic][dd][id][kd][de][ee][ie][ke][le][df][if][jf][mf][dg][eg][jg][lg][dh][eh][jh][mh][bi][ci][ei][gi][hi][ji][li][cj][ej][gj][lj][ak][bk][ck][ik][jk][kk][lk][cl][il][cm][dm][im]

;W[kj]C[W1]MN[1]
;B[ai]C[B2]MN[2]
;W[aj]C[W3]MN[3]
;B[ah]C[B4]MN[4]
;W[ia]C[W5]MN[5]
;B[ba]C[B6]MN[6]
;W[ja]C[W7]MN[7]

;
)
