Just as the 3D gyrobifastegium just was the bistratic lace tower, obtained as external blend of 2 square-adjoined trips (then in the sense of line || pseudo square || perp line), this 7D tet-gyrobifastegium likewise is the bistratic adjoin of 2 (tet, pen)-duoprisms, thereby blending out the common tetdipic base.

Incidence matrix according to Dynkin symbol

xxo3ooo3ooo oxx3ooo3ooo&#xt   → both heigths = sqrt(5/8) = 0.790569
(tet || pseudo tetdip || perp tet)

o..3o..3o.. o..3o..3o..    | 4  * * | 3  4  0  0  0 0 | 3 12  6  0  0  0  0  0 0 | 1 12 18  4 0  0  0 0  0  0  0 0 | 4 18 12 1 0  0 0 0  0  0 0 | 6 12 3 0 0 0  0 0 | 4 3 0 0
.o.3.o.3.o. .o.3.o.3.o.    | * 16 * | 0  1  3  3  1 0 | 0  3  3  3  9  3  3  3 0 | 0  3  9  3 1  9  9 1  3  9  3 0 | 1  9  9 1 3  9 3 1  9  9 1 | 3  9 3 3 3 3  9 3 | 3 3 3 3
..o3..o3..o ..o3..o3..o    | *  * 4 | 0  0  0  0  4 3 | 0  0  0  0  0  0  6 12 3 | 0  0  0  0 0  0  0 0  4 18 12 1 | 0  0  0 0 0  0 0 1 12 18 4 | 0  0 0 0 0 3 12 6 | 0 0 3 4
---------------------------+--------+-----------------+--------------------------+---------------------------------+----------------------------+-------------------+--------
x.. ... ... ... ... ...    | 2  0 0 | 6  *  *  *  * * | 2  4  0  0  0  0  0  0 0 | 1  8  6  0 0  0  0 0  0  0  0 0 | 4 12  4 0 0  0 0 0  0  0 0 | 6  8 1 0 0 0  0 0 | 4 2 0 0
oo.3oo.3oo. oo.3oo.3oo.&#x | 1  1 0 | * 16  *  *  * * | 0  3  3  0  0  0  0  0 0 | 0  3  9  3 0  0  0 0  0  0  0 0 | 1  9  9 1 0  0 0 0  0  0 0 | 3  9 3 0 0 0  0 0 | 3 3 0 0
.x. ... ... ... ... ...    | 0  2 0 | *  * 24  *  * * | 0  1  0  2  3  0  1  0 0 | 0  2  3  0 1  6  3 0  2  3  0 0 | 1  6  3 0 3  6 1 1  6  3 0 | 3  6 1 3 2 3  6 1 | 3 2 3 2
... ... ... .x. ... ...    | 0  2 0 | *  *  * 24  * * | 0  0  1  0  3  2  0  1 0 | 0  0  3  2 0  3  6 1  0  3  2 0 | 0  3  6 1 1  6 3 0  3  6 1 | 1  6 3 2 3 1  6 3 | 2 3 2 3
.oo3.oo3.oo .oo3.oo3.oo&#x | 0  1 1 | *  *  *  * 16 * | 0  0  0  0  0  0  3  3 0 | 0  0  0  0 0  0  0 0  3  9  3 0 | 0  0  0 0 0  0 0 1  9  9 1 | 0  0 0 0 0 3  9 3 | 0 0 3 3
... ... ... ..x ... ...    | 0  0 2 | *  *  *  *  * 6 | 0  0  0  0  0  0  0  4 2 | 0  0  0  0 0  0  0 0  0  6  8 1 | 0  0  0 0 0  0 0 0  4 12 4 | 0  0 0 0 0 1  8 6 | 0 0 2 4
---------------------------+--------+-----------------+--------------------------+---------------------------------+----------------------------+-------------------+--------
x..3o.. ... ... ... ...    | 3  0 0 | 3  0  0  0  0 0 | 4  *  *  *  *  *  *  * * | 1  4  0  0 0  0  0 0  0  0  0 0 | 4  6  0 0 0  0 0 0  0  0 0 | 6  4 0 0 0 0  0 0 | 4 1 0 0
xx. ... ... ... ... ...&#x | 2  2 0 | 1  2  1  0  0 0 | * 24  *  *  *  *  *  * * | 0  2  3  0 0  0  0 0  0  0  0 0 | 1  6  3 0 0  0 0 0  0  0 0 | 3  6 1 0 0 0  0 0 | 3 2 0 0
... ... ... ox. ... ...&#x | 1  2 0 | 0  2  0  1  0 0 | *  * 24  *  *  *  *  * * | 0  0  3  2 0  0  0 0  0  0  0 0 | 0  3  6 1 0  0 0 0  0  0 0 | 1  6 3 0 0 0  0 0 | 2 3 0 0
.x.3.o. ... ... ... ...    | 0  3 0 | 0  0  3  0  0 0 | *  *  * 16  *  *  *  * * | 0  1  0  0 1  3  0 0  1  0  0 0 | 1  3  0 0 3  3 0 1  3  0 0 | 3  3 0 3 1 3  3 0 | 3 1 3 1
.x. ... ... .x. ... ...    | 0  4 0 | 0  0  2  2  0 0 | *  *  *  * 36  *  *  * * | 0  0  1  0 0  2  2 0  0  1  0 0 | 0  2  2 0 1  4 1 0  2  2 0 | 1  4 1 2 2 1  4 1 | 2 2 2 2
... ... ... .x.3.o. ...    | 0  3 0 | 0  0  0  3  0 0 | *  *  *  *  * 16  *  * * | 0  0  0  1 0  0  3 1  0  0  1 0 | 0  0  3 1 0  3 3 0  0  3 1 | 0  3 3 1 3 0  3 3 | 1 3 1 3
.xo ... ... ... ... ...&#x | 0  2 1 | 0  0  1  0  2 0 | *  *  *  *  *  * 24  * * | 0  0  0  0 0  0  0 0  2  3  0 0 | 0  0  0 0 0  0 0 1  6  3 0 | 0  0 0 0 0 3  6 1 | 0 0 3 2
... ... ... .xx ... ...&#x | 0  2 2 | 0  0  0  1  2 1 | *  *  *  *  *  *  * 24 * | 0  0  0  0 0  0  0 0  0  3  2 0 | 0  0  0 0 0  0 0 0  3  6 1 | 0  0 0 0 0 1  6 3 | 0 0 2 3
... ... ... ..x3..o ...    | 0  0 3 | 0  0  0  0  0 3 | *  *  *  *  *  *  *  * 4 | 0  0  0  0 0  0  0 0  0  0  4 1 | 0  0  0 0 0  0 0 0  0  6 4 | 0  0 0 0 0 0  4 6 | 0 0 1 4
---------------------------+--------+-----------------+--------------------------+---------------------------------+----------------------------+-------------------+--------
x..3o..3o.. ... ... ...    ♦ 4  0 0 | 6  0  0  0  0 0 | 4  0  0  0  0  0  0  0 0 | 1  *  *  * *  *  * *  *  *  * * ♦ 4  0  0 0 0  0 0 0  0  0 0 | 6  0 0 0 0 0  0 0 | 4 0 0 0
xx.3oo. ... ... ... ...&#x ♦ 3  3 0 | 3  3  3  0  0 0 | 1  3  0  1  0  0  0  0 0 | * 16  *  * *  *  * *  *  *  * * | 1  3  0 0 0  0 0 0  0  0 0 | 3  3 0 0 0 0  0 0 | 3 1 0 0
xx. ... ... ox. ... ...&#x ♦ 2  4 0 | 1  4  2  2  0 0 | 0  2  2  0  1  0  0  0 0 | *  * 36  * *  *  * *  *  *  * * | 0  2  2 0 0  0 0 0  0  0 0 | 1  4 1 0 0 0  0 0 | 2 2 0 0
... ... ... ox.3oo. ...&#x ♦ 1  3 0 | 0  3  0  3  0 0 | 0  0  3  0  0  1  0  0 0 | *  *  * 16 *  *  * *  *  *  * * | 0  0  3 1 0  0 0 0  0  0 0 | 0  3 3 0 0 0  0 0 | 1 3 0 0
.x.3.o.3.o. ... ... ...    ♦ 0  4 0 | 0  0  6  0  0 0 | 0  0  0  4  0  0  0  0 0 | *  *  *  * 4  *  * *  *  *  * * | 1  0  0 0 3  0 0 1  0  0 0 | 3  0 0 3 0 3  0 0 | 3 0 3 0
.x.3.o. ... .x. ... ...    ♦ 0  6 0 | 0  0  6  3  0 0 | 0  0  0  2  3  0  0  0 0 | *  *  *  * * 24  * *  *  *  * * | 0  1  0 0 1  2 0 0  1  0 0 | 1  2 0 2 1 1  2 0 | 2 1 2 1
.x. ... ... .x.3.o. ...    ♦ 0  6 0 | 0  0  3  6  0 0 | 0  0  0  0  3  2  0  0 0 | *  *  *  * *  * 24 *  *  *  * * | 0  0  1 0 0  2 1 0  0  1 0 | 0  2 1 1 2 0  2 1 | 1 2 1 2
... ... ... .x.3.o.3.o.    ♦ 0  4 0 | 0  0  0  6  0 0 | 0  0  0  0  0  4  0  0 0 | *  *  *  * *  *  * 4  *  *  * * | 0  0  0 1 0  0 3 0  0  0 1 | 0  0 3 0 3 0  0 3 | 0 3 0 3
.xo3.oo ... ... ... ...&#x ♦ 0  3 1 | 0  0  3  0  3 0 | 0  0  0  1  0  0  3  0 0 | *  *  *  * *  *  * * 16  *  * * | 0  0  0 0 0  0 0 1  3  0 0 | 0  0 0 0 0 3  3 0 | 0 0 3 1
.xo ... ... .xx ... ...&#x ♦ 0  4 2 | 0  0  2  2  4 1 | 0  0  0  0  1  0  2  2 0 | *  *  *  * *  *  * *  * 36  * * | 0  0  0 0 0  0 0 0  2  2 0 | 0  0 0 0 0 1  4 1 | 0 0 2 2
... ... ... .xx3.oo ...&#x ♦ 0  3 3 | 0  0  0  3  3 3 | 0  0  0  0  0  1  0  3 1 | *  *  *  * *  *  * *  *  * 16 * | 0  0  0 0 0  0 0 0  0  3 1 | 0  0 0 0 0 0  3 3 | 0 0 1 3
... ... ... ..x3..o3..o    ♦ 0  0 4 | 0  0  0  0  0 6 | 0  0  0  0  0  0  0  0 4 | *  *  *  * *  *  * *  *  *  * 1 ♦ 0  0  0 0 0  0 0 0  0  0 4 | 0  0 0 0 0 0  0 6 | 0 0 0 4
---------------------------+--------+-----------------+--------------------------+---------------------------------+----------------------------+-------------------+--------
xx.3oo.3oo. ... ... ...&#x ♦ 4  4 0 | 6  4  6  0  0 0 | 4  6  0  4  0  0  0  0 0 | 1  4  0  0 1  0  0 0  0  0  0 0 | 4  *  * * *  * * *  *  * * | 3  0 0 0 0 0  0 0 | 3 0 0 0
xx.3oo. ... ox. ... ...&#x ♦ 3  6 0 | 3  6  6  3  0 0 | 1  6  3  2  3  0  0  0 0 | 0  2  3  0 0  1  0 0  0  0  0 0 | * 24  * * *  * * *  *  * * | 1  2 0 0 0 0  0 0 | 2 1 0 0
xx. ... ... ox.3oo. ...&#x ♦ 2  6 0 | 1  6  3  6  0 0 | 0  3  6  0  3  2  0  0 0 | 0  0  3  2 0  0  1 0  0  0  0 0 | *  * 24 * *  * * *  *  * * | 0  2 1 0 0 0  0 0 | 1 2 0 0
... ... ... ox.3oo.3oo.&#x ♦ 1  4 0 | 0  4  0  6  0 0 | 0  0  6  0  0  4  0  0 0 | 0  0  0  4 0  0  0 1  0  0  0 0 | *  *  * 4 *  * * *  *  * * | 0  0 3 0 0 0  0 0 | 0 3 0 0
.x.3.o.3.o. .x. ... ...    ♦ 0  8 0 | 0  0 12  4  0 0 | 0  0  0  8  6  0  0  0 0 | 0  0  0  0 2  4  0 0  0  0  0 0 | *  *  * * 6  * * *  *  * * | 1  0 0 2 0 1  0 0 | 2 0 2 0
.x.3.o. ... .x.3.o. ...    ♦ 0  9 0 | 0  0  9  9  0 0 | 0  0  0  3  9  3  0  0 0 | 0  0  0  0 0  3  3 0  0  0  0 0 | *  *  * * * 16 * *  *  * * | 0  1 0 1 1 0  1 0 | 1 1 1 1
.x. ... ... .x.3.o.3.o.    ♦ 0  8 0 | 0  0  4 12  0 0 | 0  0  0  0  6  8  0  0 0 | 0  0  0  0 0  0  4 2  0  0  0 0 | *  *  * * *  * 6 *  *  * * | 0  0 1 0 2 0  0 1 | 0 2 0 2
.xo3.oo3.oo ... ... ...&#x ♦ 0  4 1 | 0  0  6  0  4 0 | 0  0  0  4  0  0  6  0 0 | 0  0  0  0 1  0  0 0  4  0  0 0 | *  *  * * *  * * 4  *  * * | 0  0 0 0 0 3  0 0 | 0 0 3 0
.xo3.oo ... .xx ... ...&#x ♦ 0  6 2 | 0  0  6  3  6 1 | 0  0  0  2  3  0  6  3 0 | 0  0  0  0 0  1  0 0  2  3  0 0 | *  *  * * *  * * * 24  * * | 0  0 0 0 0 1  2 0 | 0 0 2 1
.xo ... ... .xx3.oo ...&#x ♦ 0  6 3 | 0  0  3  6  6 3 | 0  0  0  0  3  2  3  6 1 | 0  0  0  0 0  0  1 0  0  3  2 0 | *  *  * * *  * * *  * 24 * | 0  0 0 0 0 0  2 1 | 0 0 1 2
... ... ... .xx3.oo3.oo&#x ♦ 0  4 4 | 0  0  0  6  4 6 | 0  0  0  0  0  4  0  6 4 | 0  0  0  0 0  0  0 1  0  0  4 1 | *  *  * * *  * * *  *  * 4 | 0  0 0 0 0 0  0 3 | 0 0 0 3
---------------------------+--------+-----------------+--------------------------+---------------------------------+----------------------------+-------------------+--------
xx.3oo.3oo. ox. ... ...&#x ♦ 4  8 0 | 6  8 12  4  0 0 | 4 12  4  8  6  0  0  0 0 | 1  8  6  0 2  4  0 0  0  0  0 0 | 2  4  0 0 1  0 0 0  0  0 0 | 6  * * * * *  * * | 2 0 0 0
xx.3oo. ... ox.3oo. ...&#x ♦ 3  9 0 | 3  9  9  9  0 0 | 1  9  9  3  9  3  0  0 0 | 0  3  9  3 0  3  3 0  0  0  0 0 | 0  3  3 0 0  1 0 0  0  0 0 | * 16 * * * *  * * | 1 1 0 0
xx. ... ... ox.3oo.3oo.&#x ♦ 2  8 0 | 1  8  4 12  0 0 | 0  4 12  0  6  8  0  0 0 | 0  0  6  8 0  0  4 2  0  0  0 0 | 0  0  4 2 0  0 1 0  0  0 0 | *  * 6 * * *  * * | 0 2 0 0
.x.3.o.3.o. .x.3.o. ...    ♦ 0 12 0 | 0  0 18 12  0 0 | 0  0  0 12 18  4  0  0 0 | 0  0  0  0 3 12  6 0  0  0  0 0 | 0  0  0 0 3  4 0 0  0  0 0 | *  * * 4 * *  * * | 1 0 1 0
.x.3.o. ... .x.3.o.3.o.    ♦ 0 12 0 | 0  0 12 18  0 0 | 0  0  0  4 18 12  0  0 0 | 0  0  0  0 0  6 12 3  0  0  0 0 | 0  0  0 0 0  4 3 0  0  0 0 | *  * * * 4 *  * * | 0 1 0 1
.xo3.oo3.oo .xx ... ...&#x ♦ 0  8 2 | 0  0 12  4  8 1 | 0  0  0  8  6  0 12  4 0 | 0  0  0  0 2  4  0 0  8  6  0 0 | 0  0  0 0 1  0 0 2  4  0 0 | *  * * * * 6  * * | 0 0 2 0
.xo3.oo ... .xx3.oo ...&#x ♦ 0  9 3 | 0  0  9  9  9 3 | 0  0  0  3  9  3  9  9 1 | 0  0  0  0 0  3  3 0  3  9  3 0 | 0  0  0 0 0  1 0 0  3  3 0 | *  * * * * * 16 * | 0 0 1 1
.xo ... ... .xx3.oo3.oo&#x ♦ 0  8 4 | 0  0  4 12  8 6 | 0  0  0  0  6  8  4 12 4 | 0  0  0  0 0  0  4 2  0  6  8 1 | 0  0  0 0 0  0 1 0  0  4 2 | *  * * * * *  * 6 | 0 0 0 2
---------------------------+--------+-----------------+--------------------------+---------------------------------+----------------------------+-------------------+--------
xx.3oo.3oo. ox.3oo. ...&#x ♦ 4 12 0 | 6 12 18 12  0 0 | 4 18 12 12 18  4  0  0 0 | 1 12 18  4 3 12  6 0  0  0  0 0 | 3 12  6 0 3  4 0 0  0  0 0 | 3  4 0 1 0 0  0 0 | 4 * * *
xx.3oo. ... ox.3oo.3oo.&#x ♦ 3 12 0 | 3 12 12 18  0 0 | 1 12 18  4 18 12  0  0 0 | 0  4 18 12 0  6 12 3  0  0  0 0 | 0  6 12 3 0  4 3 0  0  0 0 | 0  4 3 0 1 0  0 0 | * 4 * *
.xo3.oo3.oo .xx3.oo ...&#x ♦ 0 12 3 | 0  0 18 12 12 3 | 0  0  0 12 18  4 18 12 1 | 0  0  0  0 3 12  6 0 12 18  4 0 | 0  0  0 0 3  4 0 3 12  6 0 | 0  0 0 1 0 3  4 0 | * * 4 *
.xo3.oo ... .xx3.oo3.oo&#x ♦ 0 12 4 | 0  0 12 18 12 6 | 0  0  0  4 18 12 12 18 4 | 0  0  0  0 0  6 12 3  4 18 12 1 | 0  0  0 0 0  4 3 0  6 12 3 | 0  0 0 0 1 0  4 3 | * * * 4

or
o..3o..3o.. o..3o..3o..    & | 8  * |  3  4  0 | 3 12  6  0  0 | 1 12 18  4 0  0 | 4 18 12 1  0  0 |  6 12  3 0 | 4 3
.o.3.o.3.o. .o.3.o.3.o.      | * 16 |  0  2  6 | 0  6  6  6  9 | 0  6 18  6 2 18 | 2 18 18 2  6  9 |  6 18  6 6 | 6 6
-----------------------------+------+----------+---------------+-----------------+-----------------+------------+----
x.. ... ... ... ... ...    & | 2  0 | 12  *  * | 2  4  0  0  0 | 1  8  6  0 0  0 | 4 12  4 0  0  0 |  6  8  1 0 | 4 2
oo.3oo.3oo. oo.3oo.3oo.&#x & | 1  1 |  * 32  * | 0  3  3  0  0 | 0  3  9  3 0  0 | 1  9  9 1  0  0 |  3  9  3 0 | 3 3
.x. ... ... ... ... ...    & | 0  2 |  *  * 48 | 0  1  1  2  3 | 0  2  6  2 1  9 | 1  9  9 1  4  6 |  4 12  4 5 | 5 5
-----------------------------+------+----------+---------------+-----------------+-----------------+------------+----
x..3o.. ... ... ... ...    & | 3  0 |  3  0  0 | 8  *  *  *  * | 1  4  0  0 0  0 | 4  6  0 0  0  0 |  6  4  0 0 | 4 1
xx. ... ... ... ... ...&#x & | 2  2 |  1  2  1 | * 48  *  *  * | 0  2  3  0 0  0 | 1  6  3 0  0  0 |  3  6  1 0 | 3 2
... ... ... ox. ... ...&#x & | 1  2 |  0  2  1 | *  * 48  *  * | 0  0  3  2 0  0 | 0  3  6 1  0  0 |  1  6  3 0 | 2 3
.x.3.o. ... ... ... ...    & | 0  3 |  0  0  3 | *  *  * 32  * | 0  1  0  1 1  3 | 1  3  3 1  3  3 |  3  6  3 4 | 4 4
.x. ... ... .x. ... ...      | 0  4 |  0  0  4 | *  *  *  * 36 | 0  0  2  0 0  4 | 0  4  4 0  2  4 |  2  8  2 4 | 4 4
-----------------------------+------+----------+---------------+-----------------+-----------------+------------+----
x..3o..3o.. ... ... ...    & ♦ 4  0 |  6  0  0 | 4  0  0  0  0 | 2  *  *  * *  * ♦ 4  0  0 0  0  0 |  6  0  0 0 | 4 0
xx.3oo. ... ... ... ...&#x & ♦ 3  3 |  3  3  3 | 1  3  0  1  0 | * 32  *  * *  * | 1  3  0 0  0  0 |  3  3  0 0 | 3 2
xx. ... ... ox. ... ...&#x & ♦ 2  4 |  1  4  4 | 0  2  2  0  1 | *  * 72  * *  * | 0  2  2 0  0  0 |  1  4  1 0 | 2 2
... ... ... ox.3oo. ...&#x & ♦ 1  3 |  0  3  3 | 0  0  3  1  0 | *  *  * 32 *  * | 0  0  3 1  0  0 |  0  3  3 0 | 1 3
.x.3.o.3.o. ... ... ...    & ♦ 0  4 |  0  0  6 | 0  0  0  4  0 | *  *  *  * 8  * | 1  0  0 1  3  0 |  3  0  3 3 | 3 3
.x.3.o. ... .x. ... ...    & ♦ 0  6 |  0  0  9 | 0  0  0  2  3 | *  *  *  * * 48 | 0  1  1 0  1  2 |  1  4  1 3 | 3 3
-----------------------------+------+----------+---------------+-----------------+-----------------+------------+----
xx.3oo.3oo. ... ... ...&#x & ♦ 4  4 |  6  4  6 | 4  6  0  4  0 | 1  4  0  0 1  0 | 8  *  * *  *  * |  3  0  0 0 | 3 0
xx.3oo. ... ox. ... ...&#x & ♦ 3  6 |  3  6  9 | 1  6  3  2  3 | 0  2  3  0 0  1 | * 48  * *  *  * |  1  2  0 0 | 2 1
xx. ... ... ox.3oo. ...&#x & ♦ 2  6 |  1  6  9 | 0  3  6  2  3 | 0  0  3  2 0  1 | *  * 48 *  *  * |  0  2  1 0 | 1 2
... ... ... ox.3oo.3oo.&#x & ♦ 1  4 |  0  4  6 | 0  0  6  4  0 | 0  0  0  4 1  0 | *  *  * 8  *  * |  0  0  3 0 | 0 3
.x.3.o.3.o. .x. ... ...    & ♦ 0  8 |  0  0 16 | 0  0  0  8  6 | 0  0  0  0 2  4 | *  *  * * 12  * |  1  0  1 2 | 2 2
.x.3.o. ... .x.3.o. ...      ♦ 0  9 |  0  0 18 | 0  0  0  6  9 | 0  0  0  0 0  6 | *  *  * *  * 16 |  0  2  0 2 | 2 2
-----------------------------+------+----------+---------------+-----------------+-----------------+------------+----
xx.3oo.3oo. ox. ... ...&#x & ♦ 4  8 |  6  8 16 | 4 12  4  8  6 | 1  8  6  0 2  4 | 2  4  0 0  1  0 | 12  *  * * | 2 0
xx.3oo. ... ox.3oo. ...&#x & ♦ 3  9 |  3  9 18 | 1  9  9  6  9 | 0  3  9  3 0  6 | 0  3  3 0  0  1 |  * 32  * * | 1 1
xx. ... ... ox.3oo.3oo.&#x & ♦ 2  8 |  1  8 16 | 0  4 12  8  6 | 0  0  6  8 2  4 | 0  0  4 2  1  0 |  *  * 12 * | 0 2
.x.3.o.3.o. .x.3.o. ...    & ♦ 0 12 |  0  0 30 | 0  0  0 16 18 | 0  0  0  0 3 18 | 0  0  0 0  3  4 |  *  *  * 8 | 1 1
-----------------------------+------+----------+---------------+-----------------+-----------------+------------+----
xx.3oo.3oo. ox.3oo. ...&#x & ♦ 4 12 |  6 12 30 | 4 18 12 16 18 | 1 12 18  4 3 18 | 3 12  6 0  3  4 |  3  4  0 1 | 8 *
xx.3oo. ... ox.3oo.3oo.&#x & ♦ 3 12 |  3 12 30 | 1 12 18 16 18 | 0  4 18 12 3 18 | 0  6 12 3  3  4 |  0  4  3 1 | * 8