You’ll fill out a short demographics form, then solve several 3×3 matrix puzzles.
You can go back and change answers. The Submit button appears on the final puzzle.
About you (optional)
Participant ID:
Puzzle
Pick the answer that best completes the 3×3 matrix.
Choose an answer
Selected: None
Privacy note: This collects your selections + optional demographics + comments.
IP logging requires a backend endpoint; the backend should log it from request metadata.