(;GM[1]FF[4]SZ[19]
GN[Black's heavy play on the left side]
PC[https://senseis.xmp.net/?StandardOpening1/ReviewWithAI]AP[GoWiki:2009]
DT[2020-06-22]
C[Diagram from https://senseis.xmp.net/?StandardOpening1/ReviewWithAI

Black's heavy play on the left side]
PL[B]

AB[pd][cf][dj][cl][fo][go][ho][mo][ip][jp][kp][pp][fq]
AW[fc][dd][qj][dl][em][dn][dp][hp][hq][iq][jq][lq][nq]

;B[cm]C[B1]MN[1]
;W[cn]C[W2]MN[2]
;B[dk]C[B3]MN[3]
;W[dr]C[W4]MN[4]

;
)
