>       ┏━┯━┯━┯━┯━┯━┯━┯━┓
>       ┃角│　│　│　│　│　│　│　┃
>       ┠─┼─┼─┼─┼─┼─┼─┼─┨
>       ┃　│　│　│　│　│　│　│　┃
>       ┠─┼─┼─┼─┼─┼─┼─┼─┨
>       ┃　│　│　│　│　│　│　│　┃
>       ┠─┼─┼─┼─┼─┼─┼─┼─┨
>       ┃　│　│　│○│●│　│　│　┃
>       ┠─┼─┼─┼─┼─┼─┼─┼─┨
>       ┃　│　│　│●│○│　│　│　┃
>       ┠─┼─┼─┼─┼─┼─┼─┼─┨
>       ┃　│　│　│　│　│　│　│　┃
>       ┠─┼─┼─┼─┼─┼─┼─┼─┨
>       ┃　│　│　│　│　│　│　│　┃
>       ┠─┼─┼─┼─┼─┼─┼─┼─┨
>       ┃　│　│　│　│　│　│　│　┃
>       ┗━┷━┷━┷━┷━┷━┷━┷━┛


参考：2000/10/04(水)23時43分00秒