A square divided horizontally and vertically into four equal parts, each with a different direction of lines.

A wall divided horizontally and vertically into four equal parts. Within each part, three of the four kinds of lines are superimposed.

Bands of lines 12 inches (30 cm) wide, in three directions (vertical, horizontal, diagonal right) intersecting.

Four-part drawing with a different line direction in each part.

A wall divided vertically into six equal parts, with two of the four kinds of line directions superimposed in each part.

A one-inch (2.5 cm) grid covering a 36" (90 cm) square. Within each one-inch (2.5 cm) square, there is a line in one of the four directions.

A one-inch (2.5 cm) grid covering a square.

Within each of the one-inch (2.5 cm) squares:

1: Vertical black lines;

2: Horizontal yellow lines;

3: Diagonal right red lines;

or 4: Diagonal left blue lines.

As many lines as desired, but at least one line in each square.

On one wall, intersecting symmetrical bands of parallel lines 36” (90 cm) wide, in four directions and colors

Tissue paper cut into 1½-inch (4 cm) squares and inserted into holes in the gray pegboard walls. All holes in the walls are filled randomly.

A wall divided into four parts based on architectural points, each part with lines in three directions and three colors

Straight lines 10″ (25 cm) long, not touching, covering the wall evenly

Vertical lines, not straight, not touching, covering the wall evenly.

A wall divided into fifteen equal parts, each with a different line direction, and all combinations.

A wall divided into four parts by lines drawn from corner to corner. Each section with three different colors made of parallel lines superimposed.

All architectural points connected by straight lines.

A square is divided horizontally and vertically into four equal parts, each with lines in four directions superimposed progressively.

All one-, two-, three-, and four-part combinations of lines in four directions each within a square

A wall is divided into four horizontal parts. In the top row are four equal vertical divisions, each with lines in a different direction. In the second row, six double combinations; in the third row, four triple combinations; in the bottom row, all four combinations superimposed

Lines not short, not straight, crossing and touching, drawn at random using four colors, uniformly dispersed with maximum density, covering the entire surface of the wall.

Lines, not straight, not touching, drawn at random, uniformly dispersed with maximum density, covering the entire surface of the wall.

Straight lines about 12 inches (30 cm) long, touching and crossing, uniformly dispersed with maximum density, covering the entire surface of wall.

A 12" (30 cm) square filled in by using all of the Crayola crayons in the pack of 12

A wall is divided into four horizontal parts. In the top row are four equal divisions, each with lines in a different direction. In the second row, six double combinations; in the third row, four triple combinations; in the bottom row, all four combinations superimposed.

Ten thousand lines about 10 inches (25 cm) long, covering the wall evenly.

A square divided horizontally and vertically into four equal parts, each with lines and colors in four directions superimposed progressively.

A 6-inch (15 cm) grid covering the wall. Within each square, not straight lines in either of four directions. Only one direction in each square but as many as desired, and at least one line in each square.

A six-inch (15 cm) grid covering the wall. Within each square, not straight lines from side to side, using red, yellow and blue pencils. Each square contains at least one line of each color.

On a wall divided vertically into fifteen equal parts, vertical lines, not straight, using four colors in all one-, two-, three-, and four-part combinations.

Within an 80 inch (200 cm) square, 10,000 straight lines. Next to it is an 80 inch (200 cm) square with 10,000 not straight lines.

Not straight vertical lines from floor to ceiling, using as much wall area as is determined by the drafter.

A wall divided vertically into five equal parts, with ten thousand lines in each part: 1st) 6" (15cm) long; 2nd) 12" (30 cm) long; 3rd) 18" (45cm) long; 4th) 24" (60 cm) long; 5th) 30" (75cm) long. Pencil.

Arcs from four corners, Using four colors, One from each corner

Fifty randomly placed points connected by straight lines.

Two-part drawing: Grid and arcs from the midpoints of two opposite sides (horizontal and vertical). (ACG 106).

A not straight line from the upper left corner to the lower right corner and from the upper right corner to the lower left corner, a not straight line from the midpoint of the left side to the midpoint of the right side, and a not straight line from the midpoint of the top to the midpoint of the bottom, all crossing in the center of the wall.

All combinations of two lines crossing, placed at random, using arcs from corners and sides, straight, not straight and broken lines

Copied lines. The first drafter draws a not straight vertical line as long as possible. The second drafter draws a line next to the first one, trying to copy it. The third drafter does the same, as do as many drafters as possible. Then the first drafter, followed by the others, copies the last line drawn until both ends of the wall are reached.

The first drafter draws a not straight vertical line as long as possible. The second drafter draws a line next to the first one, trying to copy it. The third drafter does the same, as do as many drafters as possible. Then the first drafter followed by the others, copies the last line drawn until both ends of the wall are reached.

Horizontal, not straight lines. Each signatory makes a horizontal non-straight line from left to right on the wall. The lines should not touch. There are as many lines as persons who draws, each draw one.

A not straight line from the upper left corner to the lower right corner, and a not straight line from the upper right corner to the lower left corner

Grid and arcs from four corners. (ACG 103)

A 36-inch (90 cm) grid covering the wall. All two-part combinations of arcs from corners and sides, straight, and not straight lines, systematically

Circles and arcs from the midpoints of four sides. (ACG 59)

Grid and arcs from the midpoints of four sides

A 10-inch (25 cm) grid covering the wall. An increasing number of vertical not straight lines from the left side and horizontal not straight lines from bottom to top, adding one line per row of the grid. All lines are spaced evenly based on the number of lines, filling the last row of each direction.

All two-part combinations of blue arcs from corners and sides, and blue straight, not straight and broken lines.

Ten thousand one-inch (2,5 cm) lines evenly spaced on each of six walls

A black outlined square with a red horizontal line from the midpoint of the left side toward the middle of the right side.

A black outlined square with a red diagonal line from the lower left corner toward the upper right corner; and another red line from the lower right corner to the upper left.

A black outlined square with a red diagonal line centered on the axis between the upper left and lower right corners and another red diagonal line centered on the axis between the lower left and upper right corners.

A black outlined square with a red horizontal line centered on the axis between the midpoint of the left side and the midpoint of the right side and a red diagonal line centered on the axis between the lower left and upper right corners.

A line through the center of the wall toward the midpoint of the top side and a line from the midpoint of the left side to the midpoint of the right side

A line from the center of the wall to the midpoint of the top side, and a line from the midpoint of the first line to the midpoint of the left side

Lines through the center of the wall toward midpoints of sides and corners

A 48″ (120 cm) horizontal line from the right side of the wall, 48″ (120 cm) above the floor

The location of an arc and not straight line. An arc whose center is located at the midpoint of the left side and whose radius is equal in length to the distance between the point halfway between the midpoint of the left side and the lower left corner and a point where two lines would cross if the first line were drawn from the midpoint of the bottom side to the upper right corner, the second line from the center of the wall and a point halfway between the midpoint of the right side and the lower right corner, drawn from the top part of the left side to the bottom part of the left side. The not straight line drawn from a point halfway between the center of the wall and the upper right corner to a point halfway between the center of the wall and the lower right corner

White Circles, Grids and Arcs from Two Opposite Sides of a Gray Wall

A square, each side of which is equal to a tenth of the total length of three lines, the first of which is drawn from a point halfway between the center of the wall and a point halfway between the center of the wall and the upper left corner and the midpoint of the left side to a point halfway between the center of the wall and a point halfway between the center of the wall and the midpoint of the bottom side; the second line is drawn from a point halfway between the start of the first line and a point halfway between the center of the wall and the upper right corner and the midpoint of the top side to the start of the first line; the third line is drawn from a point halfway between a point equidistant from the end of the first line, the start of the second line and a point halfway between a point halfway between the center of the wall and the midpoint of the right side and a point halfway between the center of the wall and the upper right corner and the midpoint of the top side to the point where the first line starts and the second line ends; the right side is located on the axis of, and equidistant from two points, the first of which is located at a point halfway between a point halfway between the center of the wall and the midpoint of the right side and the lower right corner to a point halfway between a point halfway between the midpoint of the top side and the upper right corner and the start of the third line.

The location of three points.

The location of a trapezoid.

The location of a parallelogram.

A straight line from the lower left corner of the wall to a point halfway between the center of the wall and the midpoint of the left side

The location of a straight, not straight and a broken line, a square, a triangle and a circle. (The specific locations are determined by the draftsman.)

Grid and arcs from one corner and the midpoints of two adjacent sides, surrounding the corner. Black pencil.

A six-inch (15 cm) grid covers a black wall. There are ten white lines from the centre of the four sides and ten lines from every corner to arbitrary points on the grid (the length of the lines and their position is determined by the artist). White lines, grid in black pencil, black wall.

On Black Walls, All Two-Part Combinations of White Arcs from Corners and Sides, and White Straight, Not-Straight, and Broken Lines

On blue walls, all two-part combinations of white arcs from corners and sides, and white straight, not straight, and broken lines within a 36-inch (90 cm) grid.

A wall divided into sixteen equal parts with all one - two, three and four part combinations of lines in four directions.

A wall divided into 16 equal parts with all one-, two-, three-, and four-part combinations of lines in four directions and four colors.

Black circles, red grid, yellow arcs from four corners, blue arcs from the midpoints of four sides. (ACG 195)

An increasing number of horizontal lines about 1 in. apart from bottom to top, vertical lines from top to bottom, diagonal right lines from left to right, diagonal left lines right to left.

A 6” (15 cm) grid covering the walls. Lines from corners, sides, and center of the walls to random points on the grid.

1st wall: Red lines from the midpoints of four sides;

2nd wall: Blue lines from the four corners;

3rd wall: Yellow lines from the center;

4th wall: Red lines from the midpoints of four sides, blue lines from four corners;

5th wall: Red lines from the midpoints of four sides, yellow lines from the center;

6th wall: Blue lines from four corners, yellow lines from the center;

7th wall: Red lines from the midpoints of four sides, blue lines from four corners, yellow lines from the center.

Each wall has an equal number of lines. (The number of lines and their length are determined by the draftsman.)

The location of six geometric figures. (The specific locations are determined by the drafter.)

Three-part drawing. First wall: On a black wall, a white straight line. Second wall: on a black wall, a white not straight line. Third wall: on a black wall, a white broken line. The lines are drawn from the midpoins of the left and right sides.

A 6-inch (15 cm) grid covering each of the four black walls. White lines to points on the grids. Fourth wall: twenty-four lines from the center, twelve lines from the midpoint of each of the sides, twelve lines from each corner. (The length of the lines and their placement are determined by the drafter.)

A 12" (30cm) grid covering a black wall. Within each 12" (30cm) square, a vertical, horizontal, diagonal right or diagonal left line bisecting the square. All squares are filled. (The direction of the line in each square is determined by the draftsman.)

Six white geometric figures (outlines) superimposed on a black wall.

Six white geometric figures (outlines) superimposed on a yellow wall

Two part drawing. 1st part: circle, square, triangle, superimposed (outlines). 2nd part: rectangle, parallelogram, trapezoid, superimposed (outlines)

The location of one hundred random specific points. (The locations are determined by the drafters.)

1st panel: Arcs from two adjacent corners and the midpoint of one adjacent side between. (left side) (ACG 20); 2nd panel: Circles and arcs from four corners and the midpoints of two opposite sides (left and right) (ACG 95); 3rd panel: Arcs from two adjacent corners and the midpoint of one adjacent side between (right side) (ACG 20).

Blue circles, red grid, yellow arcs from four corners, black arcs from the midpoints of four sides.

A six-inch grid covering the walls

1st wall: on a red wall, blue lines from each corner to points on the grid, yellow lines from the center to points on the grid; 2nd wall: on a yellow wall, blue lines from each corner to points on the grid, red lines from the midpoint of each side to points on the grid; 3rd wall: on a blue wall, red lines from the midpoint of each side to points on the grid, yellow lines from the center to points on the grid. The number of lines and their length are determined by the draftsman, but each wall has an equal number of lines.

A wall is divided vertically into three equal parts, one red, one yellow and one blue. 1st part: On the red part, a yellow straight, a yellow not straight, and a yellow broken line; and a blue straight, a blue not straight, and a blue broken line; 2nd part: On the yellow part, a blue straight, a blue not straight, and a blue broken line; and a red straight, a red not straight, and a red broken line; 3rd part: On the blue part, a red straight, a red not straight, and a red broken line; and a yellow broken line. The lines are horizontal and equally spaced. …

A 12in. (30cm.) grid covering a black wall. Within each square, a vertical, horizontal, diagonal right or diagonal left, straight, not straight or broken line bisecting the square. All squares are filled. (The direction and kind of line in each square are determined by the draughtsman)

On a black wall, a white trapezoid within which are white vertical parallel lines and a white square within which are white horizontal parallel lines. The vertical lines within the trapezoid do not enter the square, and the horizontal lines within the square do not enter the trapezoid.

On a black wall, a white circle within which are white vertical parallel lines, and a white parallelogram within which are white horizontal parallel lines. The vertical lines within the circle do not enter the parallelogram, and the horizontal lines within the parallelogram do not enter the circle.

On four black walls, white vertical parallel lines, and in the center of the walls, eight geometric figures (including cross, X) within which are white horizontal parallel lines. The vertical lines do not enter the figures.

Two part drawing. The wall is divided vertically into two parts. Each part is divided horizontally and vertically into four equal parts. 1st part: Lines in four directions, one direction in each quarter. 2nd part: Lines in four directions, superimposed progressively.

Two part drawing. The wall is divided vertically into two parts. Each part is divided horizontally and vertically into four equal parts. 1st part: Lines in four directions, one direction in each quarter. 2nd part: Lines in four directions, superimposed progressively.

Six-part drawing. The wall is divided horizontally and vertically into six equal parts. 1st part: On red, blue horizontal parallel lines, and in the center, a circle within which are yellow vertical parallel lines; 2nd part: On yellow, red horizontal parallel lines, and in the center, a square within which are blue vertical parallel lines; 3rd part: On blue, yellow horizontal parallel lines, and in the center, a triangle within which are red vertical parallel lines; 4th part: On red, yellow horizontal parallel lines, and in the center, a rectangle within which are blue vertical parallel lines; 5th part: On yellow, blue horizontal parallel lines, and in the center, a trapezoid within which are red vertical parallel lines; 6th part: On blue, red horizontal parallel lines, and in the center, a parallelogram within which are yellow vertical parallel lines. The horizontal lines do not enter the figures.

On a black wall, nine geometric figures (including right triangle, cross, X) in squares. The backgrounds are filled in solid white.

On a black wall, a square, a circle, a triangle and a cross, within a square, the background is filled in solid white.

On a black wall, a square, a circle, a triangle and a cross, within a square, the background is filled in solid white.

On a black wall, a square, a circle, a triangle and a cross, within a square, the background is filled in solid white.

Outlines of isometric figures. Within each plane are parallel lines in one of three different directions. (Cube)

An isometric triangle outlined by 3-inch (7.5 cm) bands. Within each plane are 3-inch (7.5 cm) wide black bands of parallel lines in one of three directions.

A 12-inch (30 cm) grid covering the black wall. Within each 12-inch (30 cm) square, one arc from the midpoint of one side (The direction of the arcs and their placement are determined by the drafter.)

A 12 (30 cm) Grid Covering the Wall. Within Each 12 (30 cm) Square, One Arc from the Corner. (The direction of the arcs and their placement are determined by the draftsman.)

A square divided horizontally and vertically into four equal parts, each with a progressively darker gradation of gray.

Black arcs using the height or length of the wall as a radius, and black arcs using the midpoints of the wall as a radius. The arcs are filled in solid and drawn in India ink.

Ten Geometric Figures (including right triangle, cross, X, diamond) with three-inch parallel bands of lines in two directions

Lines in Four Directions (equal spacing on an unequal wall)

A square divided horizontally and vertically into four equal parts, one gray, one yellow, one red and one blue, drawn with color and India ink washes.

Stars with three, four, five, six, seven, eight, and nine points, drawn with a light tone India ink wash inside, an India ink wash outside, separated by a 6-inch (15 cm) white band.

Stars with Three-, Four-, Five-, Six-, Seven-, Eight- and Nine-Points, Drawn with a Light Tone India Ink Wash inside, an India Ink Wash Outside, Separated by a Six-inch (15cm) White Band

Two-part drawing. The two walls are each divided horizontally and vertically into four equal parts. First wall: 12-inch (30 cm) bands of lines in four directions, one direction in each part, drawn in black India ink. Second wall: Same, but with four colors drawn in India ink and color ink washes.

A 12" (30 cm) grid covering the black wall. Within each 12" (30 cm) square, a vertical, horizontal, diagonal right or diagonal left line bisecting the square. All squares are filled. (The direction of the line in each square is determined by the drafter)

A 12" (30 cm) grid covering the wall. Within each 12" (30 cm) square, a vertical, horizontal, diagonal right or diagonal left straight, not straight or broken line bisecting the square.

A black five-pointed star, a yellow six-pointed star, a red seven-pointed star, and a blue eight-pointed star, drawn in color and India ink washes.

Isometric pyramid drawn in color ink washes

Isometric figure with progressively darker gradations of gray ink wash on each plane

Isometric figure with progressively darker gradations of gray ink wash on each plane

The room (or wall) is divided vertically into fifteen parts. All one-, two-, three-, and four-part combinations of four colors, using color ink washes.

A wall is divided into two equal parts by a line drawn from corner to corner. Left: alternating diagonal black and white 8-inch (20 cm) bands from the lower left. Right: alternating diagonal black and white 8-inch (20 cm) bands from the upper right.

The first drafter has a black marker and makes an irregular horizontal line near the top of the wall. Then the second drafter tries to copy it (without touching it) using a red marker. The third drafter does the same, using a yellow marker. The fourth drafter does the same using a blue marker. Then the second drafter followed by the third and fourth copies the last line drawn until the bottom of the wall is reached.

Color bands and black blob. The wall is divided vertically into six equal bands; red; yellow; blue; orange; purple; green. In the center is a black glossy blob.

Within a four-meter (160”) circle, draw 10,000 black straight lines and 10,000 black not straight lines. All lines are randomly spaced and equally distributed.