(;GM[1]FF[4]SZ[19]
GN[Alternative for B7 in the first diagram]
PC[https://senseis.xmp.net/?XuanxuanQijingProblem36/Solution]AP[GoWiki:2009]
DT[2020-09-17]
C[Diagram from https://senseis.xmp.net/?XuanxuanQijingProblem36/Solution

Alternative for B7 in the first diagram]
PL[B]

AB[an][bn][ao][aq][bq][cq][dq][eq][cr][ds]
AW[am][bm][cm][cn][co][eo][go][fq][gq][hq][dr][er][gr][bs][fs]
LB[bo:b][ar:c][br:a][cs:d]

;B[as]C[B1]MN[1]

;LB[bo:b][ar:c][br:a][cs:d]
)
