(;GM[1]FF[4]SZ[19]
GN[Nice attack]
PC[http://senseis.xmp.net/?TeachingGame22/Moves1Thru20]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?TeachingGame22/Moves1Thru20

Nice attack]
PL[B]

AB[ck][cn][qn][dp][pp][fq]
AW[on][gp][gq][nq]

;B[no]C[B1]MN[1]
;W[oo]C[W2]MN[2]
;B[op]C[B3]MN[3]
;W[np]C[W4]MN[4]
;B[mo]C[B5]MN[5]
;W[lp]C[W6]MN[6]
;B[ol]C[B7]MN[7]

;
)
