(;GM[1]FF[4]SZ[8]
GN[Klein bottle 7×7]
PC[https://senseis.xmp.net/?KleinBottle]AP[GoWiki:2009]
DT[2023-03-07]
C[Diagram from https://senseis.xmp.net/?KleinBottle

Klein bottle 7×7]
PL[B]

LB[aa:a][ba:b][ca:c][da:d][ea:e][fa:f][ga:g][ha:a][ab:h][hb:h][ac:i][hc:i][ad:k][hd:k][ae:l][he:l][af:m][hf:m][ag:n][hg:n][ah:a][bh:g][ch:f][dh:e][eh:d][fh:c][gh:b][hh:a]


;LB[aa:a][ba:b][ca:c][da:d][ea:e][fa:f][ga:g][ha:a][ab:h][hb:h][ac:i][hc:i][ad:k][hd:k][ae:l][he:l][af:m][hf:m][ag:n][hg:n][ah:a][bh:g][ch:f][dh:e][eh:d][fh:c][gh:b][hh:a]
)
