(;GM[1]FF[4]SZ[19]
GN['f'  (B5 at WC)]
PC[http://senseis.xmp.net/?BeginnerExercise266/Solution]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?BeginnerExercise266/Solution

'f'  (B5 at WC)]
PL[B]

AB[mo][mp][rp][mq][nq][qq][rq][mr][or][qr][ls][ms][os][ps]
AW[rm][ln][mn][nn][on][qo][ro][kp][lp][np][op][qp][oq][pq][kr][lr][pr][ks][qs][rs]
CR[qs]
LB[so:m]

;B[rr]C[B1]MN[1]
;W[sp]C[W2]MN[2]
;B[ss]C[B3]MN[3]
;W[sq]C[W4]MN[4]

;CR[qs]
LB[so:m]
)
