1CThe shading repeats in a 3-step cycle (white → vertical stripes → horizontal stripes).
2DThe outline loses one corner each step.
3AThe shading repeats in a 3-step cycle (diagonal stripes → vertical stripes → white).
4DThe shape shrinks smaller each step.
5COne more square joins the chain each step.
6DThe arrows turn a quarter turn anticlockwise each step.
7AThe arrows turn a quarter turn anticlockwise each step.
8AEach step: rotate 90° clockwise.
9CThe dot moves one position clockwise each step.
10BEach step: rotate 90° clockwise, then reverse the shading.
11AThe arrow turns a quarter turn clockwise each step.
12BOne arrow is added each step.
13DEach step: rotate 90° clockwise, then reverse the shading.
14BOne more line crosses the stem each step.
15EThe shading repeats in a 3-step cycle (white → diagonal stripes → black).
16CEach step: rotate 90° anticlockwise.
17AThe arrows turn a quarter turn anticlockwise each step.
18BThe shading alternates between vertical stripes and horizontal stripes each step.
19BEach step: rotate 90° clockwise, then reverse the shading.
20AThe shading repeats in a 3-step cycle (white → vertical stripes → horizontal stripes).
21CEach shape: mirror left–right, then reverse the shading.
22AEach shape: the dot turns 90 anticlockwise°.
23EThe shading of every mark is reversed.
24AEach shape: mirror top–bottom, then reverse the shading.
25CEach shape: rotate 90° clockwise.
26EThe shape grows larger.
27BTwo dots are added inside the shape.
28AEach shape: rotate 90° anticlockwise.
29CEach shape: mirror left–right, then reverse the shading.
30BEach shape: rotate 90° anticlockwise.
31AThe stem gains one more arm at the top.
32CEach shape: mirror left–right, then reverse the shading.
33BEach shape: rotate 180°, then reverse the shading.
34EEach shape: mirror left–right, then reverse the shading.
35AThe stem gains one more arm at the top.
36BThe stem gains one more arm at the top.
37CTwo independent rules: the corners reverse the shading; the centre stays the same.
38BThe shading of every mark is reversed.
39ATwo independent rules: the corners rotate 180°; the centre reverses shading.
40EThe shading is reversed.
41AEvery shape in a row has the same inner mark; every shape in a column has the same shading.
42EAcross the top row one line leaves the stem; the same happens in the bottom row.
43CAcross the top row the dots become small; the same happens in the bottom row.
44BEvery row and column contains each shape and each shading exactly once.
45AEvery shape in a row has the same inner mark; every shape in a column has the same shading.
46EEvery shape in a row has the same shading; every shape in a column has the same number of corners.
47AEvery shape in a row has the same shape; every shape in a column has the same shading.
48BEvery figure in a row has the same kind of shape; every figure in a column has the same number of shapes.
49DEvery row and column contains each shading and each shape exactly once.
50CEvery figure in a row has the same top; every figure in a column has the same number of crossbars.
51AEvery shape in a row has the same number of corners; every shape in a column has the same shading.
52DEvery row and column contains each shape, each shading and each inner mark exactly once.
53CEvery shape in a row has the same number of corners; every shape in a column has the same shading.
54DEvery shape in a row has the same number of corners; every shape in a column has the same shading.
55CEvery figure in a row has the same number of shapes; every figure in a column has the same kind of shape.
56CEvery figure in a row has the same number of crossbars; every figure in a column has the same top.
57CEvery shape in a row has the same number of corners; every shape in a column has the same shading.
58AEvery figure in a row has the same number of crossbars; every figure in a column has the same top.
59AAcross the top row the shapes become circles; the same happens in the bottom row.
60EEvery row and column contains each shading and each shape exactly once.
61DTop letter = whether a corner points inwards, bottom letter = number of corners.
62BTop letter = the leaf shading, bottom letter = which way the leaf points.
63ETop letter = how many dots, bottom letter = size of the dots.
64DTop letter = frame, bottom letter = centre shape.
65CTop letter = how many dots, bottom letter = shading of the dots.
66ATop letter = which shape is on top, bottom letter = which two shapes.
67ETop letter = how many dots, bottom letter = size of the dots.
68BTop letter = inner mark, bottom letter = outer shape.
69BTop letter = shading, middle letter = whether a corner points inwards, bottom letter = number of corners.
70ATop letter = shape, middle letter = size, bottom letter = shading.
71ATop letter = how many lines, bottom letter = where the lines sit.
72CTop letter = shading, bottom letter = number of corners.
73ETop letter = size of the dots, bottom letter = how many dots.
74BTop letter = shape, bottom letter = which one is black.
75ETop letter = which one is black, middle letter = shape, bottom letter = how they are arranged.
76ATop letter = shape, bottom letter = line direction.
77ETop letter = frame, bottom letter = centre shape.
78BTop letter = its shading, bottom letter = bars at the foot.
79ATop letter = shape, bottom letter = shading.
80CTop letter = where the lines sit, bottom letter = how many lines.