In the Mirror Image Quiz, every correct match reflects a six-point polygon across a visible vertical mirror line using the rule x becomes 100 minus x while y stays the same, and each clean round is worth exactly 200 points. The quiz serves up five original asymmetric shapes, each shown to the left of a dashed vertical line, with four candidate polygons sitting below. Choosing the candidate that places every point at the matching distance on the opposite side, at exactly the same height, is what advances you. Five clean rounds produce the fixed maximum of 1,000 points. Because the shapes were drawn to be visibly asymmetric, the puzzle cannot be solved by recognizing a half-turn or an unchanged copy, which is exactly the point: the only reliable shortcut is reading the coordinates themselves. This article walks through the coordinate rule behind the Mirror Image Quiz, how each round is laid out, the controls and failure rules, and what the fixed 1,000-point score really measures.
How the Mirror Image Quiz Lays Out a Round
A round in the Mirror Image Quiz shows one asymmetric six-point polygon on the left side of a dashed vertical mirror line. The mirror line sits roughly in the middle of a 100 by 100 product coordinate space and represents the vertical axis between the left and right halves of the board. Below the source polygon, four candidate polygons are arranged in a two-by-two grid labelled Option A, Option B, Option C, and Option D. Each candidate is rendered from its own stored point array, so the four options are genuinely different shapes rather than styled duplicates of a single template.
Every source point has a small orientation marker, and that same orientation marker is repeated consistently in every candidate so you always know which point is the "first" point. That matters because the quiz compares points in order: point one against point one, point two against point two, and so on. If you spot a candidate whose first point sits at the correct mirrored x, you can keep going through the rest of the points to verify.
Because the matching position of the correct answer changes across rounds and covers every corner of the two-by-two grid, no single corner is always the right slot. This is a deliberate anti-pattern feature: it keeps the player reading each option instead of muscle-memorizing a button position.
The Coordinate Rule Behind Every Match
For each source point, the reflection rule replaces x with 100 minus x and leaves y unchanged. The table below shows what that rule produces for the sample points the Mirror Image Quiz uses to test the rule.
| Source point (x, y) | Mirror rule | Mirrored point (x, y) |
|---|---|---|
| (10, 18) | x = 100 minus x, y unchanged | (90, 18) |
| (36, 24) | x = 100 minus x, y unchanged | (64, 24) |
| (0, 50) | x = 100 minus x, y unchanged | (100, 50) |
The 100 by 100 board is the only coordinate system used, so the mirror line sits at x equals 50. A point at x 25 reflects to x 75, a point at x 50 reflects back to x 50, and a point at x 100 reflects back to x 0. The math is identical on every round, and only the source coordinates change.
A worked example for a single point: take a source point at x 22 and y 41. The formula gives x_reflected = 100 minus 22 = 78, while the y coordinate stays at 41. The expected mirrored point is therefore (78, 41). Compare that result with each candidate's first point and continue through points two through six in order to confirm the match.
All five source polygons in the Mirror Image Quiz are deliberately asymmetric. Their points use different horizontal distances, vertical positions, turns, and edge lengths, and the first point always carries a visible orientation marker. This prevents a half-turn or an unchanged copy from looking accidentally equivalent, which is why the only reliable path is the literal coordinate comparison.
Reading Coordinates in a Mirror Image Quiz Round
Here is the clean walkthrough for each round of the Mirror Image Quiz. For a route-by-route companion that covers the same five rounds in more detail, see the complete Mirror Image Quiz walkthrough.
- Inspect the six-point source polygon on the left and the dashed vertical mirror line, then compare the polygon with the four candidate shapes in the two-by-two grid.
- Work out where each source point should land after reflection by replacing x with 100 minus x and keeping y unchanged.
- Pick the option that maps every x coordinate to the opposite side of the mirror line while keeping every y coordinate unchanged across all six points.
- If your first pick is wrong, read the neutral correction prompt and choose a different option in the same round. The wrong option you just clicked is recorded but does not count as a second miss.
- Confirm the correct option awards the full 200 points and advances you to the next original shape. Clear all five rounds to land on the fixed 1,000-point maximum.
A correct option after a first mistake still awards the full 200 points, so a single stumble does not cost any score. A correct option immediately advances to the next original shape and clears any failure signature from a previous wrong pick.
Repairable Mistakes, Deadlocks, and the 200-Point Step
The Mirror Image Quiz uses normalized failure tracking. A wrong pick is recorded as a signature that combines the round number and the chosen option position. Repeating the identical wrong choice in the same round does not add a second failure; it is deduplicated. This means clicking the wrong tile once, reading the prompt, and accidentally clicking the same tile again will not lock your run.
A second different wrong option in the same round, however, deadlocks the run. Once that happens, you have to hit Restart to return to the first polygon. Restart recreates the exact initial state, including the round, cursor, failure signatures, and score.
The score step is fixed. A correct option adds 200 points. Five clean rounds produce the sequence 200, 400, 600, 800, and 1,000, with 200 points added at each step. There are no bonuses, no time multipliers, no streak rewards, and no penalty deductions. If you complete the run, your final score is exactly 1,000.
Controls, Keyboard, and Accessibility
The Mirror Image Quiz works with pointer, touch, and keyboard input. Each of the four option buttons is a real DOM button with a visible focus ring and an aria-current attribute. Focusing any candidate makes it the logical cursor. Left and Right arrow keys move within a row of the two-by-two grid, while Up and Down arrow keys move between rows.
After each cursor move, roving focus moves the real DOM focus to the same option, keeping the focus ring, the aria-current announcement, and the Enter or Space selection aligned. Repeated keydown events are ignored, which prevents accidental double-selects from holding a key. The page installs no global arrow, Enter, or Space listener, so Restart and unrelated browser controls keep their native behavior.
Each option button is taller than the 44-pixel minimum, flexible in width, and laid out so all four options fit inside a 390-pixel viewport. Compact gaps keep the layout from feeling cramped on smaller screens. SVG colors use the site's foreground, accent, surface, and border tokens, and the dashed mirror line is visually distinct from the polygon outline.
For accessibility, the SVGs are hidden from redundant screen-reader narration, the option labels read Option A through Option D, and no data attribute, ARIA description, hidden text, CSS class, or status element calls an option correct before selection. The only feedback is the visual change after you choose.
Why the Score Stays Recreational
The Mirror Image Quiz is built for visual recreation, not diagnosis. It uses five fixed original polygons authored for the game, not shapes copied from an examination, textbook, logo, standardized item bank, psychological task, or external reference collection. The coordinates have no real-world unit or calibration, and each option is rendered from its own stored point array.
Display size, contrast preferences, input method, familiarity with coordinate reflections, and ordinary distraction can all affect play without saying anything diagnostic. A score reflects choices within five fixed polygons and should not be compared between people. The quiz does not measure intelligence, spatial reasoning, school readiness, examination performance, cognitive ability, vision, neurological status, learning needs, or occupational fitness.
All logic runs locally in your browser. Source points, choices, failures, and scores are not uploaded. If browser storage is available, the shared game shell stores only the best completed score on that device; blocked storage simply removes that convenience without changing the puzzle. No account, paid service, network calculation, image upload, camera, sensor, package, or new dependency is required. Restart returns you to the first polygon, and the shared double-Escape boss screen hides the quiz without changing its round, cursor, failures, or score.
If you're weighing options, Place Mirrors in a Ray Grid: A Placement Walkthrough covers this in detail.