(;GM[1]FF[4]SZ[19]
GN[The essence of this opening]
PC[https://senseis.xmp.net/?StandardOpening1/ReviewWithAI]AP[GoWiki:2009]
DT[2020-06-22]
C[Diagram from https://senseis.xmp.net/?StandardOpening1/ReviewWithAI

The essence of this opening]
PL[B]

AB[pd][fo][ho][ip][jp][kp][pp][fq]
AW[dd][dn][dp][hp][hq][iq][jq][lq]
LB[cc:a]

;B[mo]C[B1]MN[1]
;W[qj]C[W2]MN[2]
;B[go]C[B3]MN[3]
;W[nq]C[W4]MN[4]

;LB[cc:a]
)
