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(Alt sticking Variant of 2, often played before 2, to build up seven rows; middle one unused row_1 = vertical_space/7; row_2 = row_1 + vertical_space/7; row_6 = row_5 + vertical_space/7; row_3 = working_increment*2 + row_1; row_3 = working_increment*2 + row_1; row_3 = row_2 + vertical_space/7; row_7.

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