(;GM[1]FF[4]SZ[19]
GN[Black 21 Variation 1.]
PC[http://senseis.xmp.net/?TeachingGame44/1Thru40]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?TeachingGame44/1Thru40

Black 21 Variation 1.]
PL[B]

AB[gb][kc][gd][pd][bh][cj][bk][qk][pn][pq]
AW[ec][dd][ce][qf][cg][jj][cl][cn][jp][dq]
CR[qk]
LB[qc:a]

;B[qe]C[B1]MN[1]
;W[pf]C[W2]MN[2]
;B[nd]C[B3]MN[3]
;W[qi]C[W4]MN[4]

;CR[qk]
LB[qc:a]
)
