I. [v68-151] starting from 1 cm below the top a line connects a random selected point and back to the top 1 cm to the right etc.; black ink on blue graph paper

II. [v68-152] starting from 1 cm below the top on the left side, a black ink line connects a random selected point and back to the left side 1 cm below etc. [program as v68-151]; black ink on blue graph paper

III. [v68-153] 8 elements (crosses) arranged with at random number (0-50 → 8), place and size (2, 4, 6, 8 cm); black ink on blue graph paper

IV. [v68-154] 24 elements (crosses) arranged with at random number (0-50 → 24), place and size (2, 4, 6, 8 cm) [program as v68-153]; black ink on blue graph paper

V. [v68-155] horizontal lines at 0.5 cm distance with at random start and length; black ink on blue graph paper

VI. [v68-158] horizontal lines at 0.5 cm distance with at random start and length (the program is vertically repeated) [program v68-155 + vertically repeated]; black ink on blue graph paper

VII. [v68-202] parallel lines at a distance of 0.5 cm with position (horizontal/vertical), length and number of lines per group at random [touching of he sides not allowed]; black ink on blue graph paper

VIII. [v68-203] 21 numbers randomly selected and arranged at random; the surface is divided in 8 vertical areas (width 5 cm) and calculated the average of the figures in these areas and the result of these calculations placed as dots and squares; black ink and rub-off numbers on blue graph paper

IX. [v68-204] 10 lines starting from the upper edge change direction (horizontal/vertical) at randomly selected points; black ink on blue graph paper

X. [v68-205a] 31 points (selected from 20-100) arranged at random and connected by lines in chronological order; black ink on blue graph paper

XI. [v68-205b] 21 points (selected from 20-100) arranged at random and connected by lines in chronological order [program as v68-205a]; black ink on blue graph paper

XII. [v68-205c] 11 points (selected from 20-100) arranged at random and connected by lines in chronological order [program as v68-205a]; black ink on blue graph paper

XIII. [v68-206] 27 dots arranged with at random selection of number (0-100 → 27), place and size (in 5 sizes); black ink on blue graph paper

XIV. [v68-219] 4 lines arranged with at random selection of number (2-100 → 4) and colour and the connecting points on the upper and lower side; black and red ink on blue graph paper

XV. [v68-220] 42 lines arranged with at random selection of number (2-100 → 42) and colour and the connecting points on the upper and lower side [program as v68-219]; black and red ink on blue graph paper

XVI. [v68-223] at random place and choice between lines (between 2 randomly selected points) or dots (in 5 sizes); black ink on blue graph paper

XVII. [v69-52] starting a line from a randomly selected point with at random choice of length and direction, continued by another line with at random length and direction (the number of lines is at random); black ink with graphite pencil on blue graph paper

XVIII. [v69-53] rectangles drawn at random and inside the rectangles dots are arranged with at random place, number and size (5 sizes); black ink with graphite pencil on blue graph paper

XIX. [v69-54] circles drawn with a diameter of 10 cm and inside the circles dots are arranged with at random selection of place, number and size (5 sizes); black ink with graphite pencil on blue graph paper

XX. [v69-57] on the intersections of a 3 × 3 cm square grid dots are arranged with at random selection of place and size (5 sizes); black ink on blue graph paper

XXI. [v69-58] inside the squares of a 5 × 5 cm grid lines with at random length (1-5 cm) and direction (10° - 360°); black ink on blue graph paper

XXII. [v69-59] on the intersections of the lines of a 5 × 5 cm grid circles are drawn with at random diameter (1-4 cm); black ink on blue graph paper