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