My sister sent me this pattern sequence. Please excuse the bad image quality.
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2 Answers
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I think it must be
because
Rule for plus signs: Every plus sign must be connected with another plus sign in the neighboring cell.
Rule for triangles: Last cell of each row contains the triangles that are present in all three prior cells.
The only option this works with is the mentioned one
answered Jan 10, 2021 at 12:50
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$\begingroup$ It could also be the top left because none to the triangles in each tile share the same arrangement with any of the adjacent tiles. $\endgroup$ Jan 10, 2021 at 14:32
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$\begingroup$ It must be correct. It is the only choice that has a placement of plusses shared with 2 other choices and the placement of triangles shared with 2 other choices. The intent was to make it less easy to solve with only half the solution. $\endgroup$ Jan 11, 2021 at 21:37
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The connection is between the crosses which are closest to the sides and to vertices.
On the first row 5 crosses are close to the sides and 1 cross to the vertex.
On the second row 5 crosses are close to the vertices and 1 close to the side.
On the third row 3 crosses are close to the sides and 3 crosses close to the vertices.
On the fourth row 1 cross is close to the side and 2 crosses close to the vertices.
If we add to the empty space the card on the bottom right, then we have 2 crosses close to the sides of the triangle. So my answer is the bottom, right card.
answered Jan 10, 2021 at 22:36