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Hidden Numbers Game

Find fixed numbers from 1 upward across five original Canvas search boards using audited touch targets or a progressive keyboard scanner.

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How to use

  1. 1.Begin with number 1 on the original Canvas scene. The Find next panel always shows the only value currently accepted.
  2. 2.Tap a visible number, or focus the scanner and move through its five-by-four grid with the Arrow keys before pressing Enter or Space.
  3. 3.Continue in strict ascending order until the board clears. Finish all five scenes for the exact maximum score of 1,000.

About Hidden Numbers Game

Hidden Numbers Game is a five-round sequential search puzzle drawn entirely from original geometric fixtures. Each board places a fixed set of visible numbers inside route maps, archive shelves, garden plots, signal rails, or machine panels. Start with 1 and find every value in strict ascending order. A scene clears only after its whole sequence is complete, so spotting a later number early does not let it bypass the required next step.

The five boards progress from four numbers to eight. Transit Blueprint winds abstract route lines around junctions. Archive Shelves divides a panel into labeled-looking bays without copying a real archive or illustration. Garden Survey uses paths and oval beds. Signal Console combines rails, dials, and bars. Machine Room finishes with a denser grid of gauges and channels. Every background is generated locally with Canvas lines, rectangles, ellipses, and circles. No external drawing, stock asset, screenshot, puzzle book, or copied scene is used.

Each number occupies one fixed cell in a five-column by four-row logical scan grid. The production fixture stores an opaque word ID, its visible value, and its cell. IDs contain no digits, ordinal labels, round numbers, values, or coordinate codes. Fixture enumeration is deliberately scrambled rather than arranged as 1, 2, 3, and so on. The only playable order comes from the numbers visibly painted on the scene and the published instruction to proceed upward from 1.

Pointer and touch input use audited Canvas geometry. A press is converted from the displayed canvas size into the fixed 360 by 240 logical coordinate system. The game then finds the nearest unfinished number within a 26-pixel logical radius. That produces a 52-pixel logical hit diameter, designed to remain practical when the board scales down on a phone. Empty space and an out-of-sequence number use the same deterministic error system as keyboard selections.

Keyboard play uses one real focus target rather than twenty hidden answer buttons. Arrow keys move a visible scanner outline through the five-by-four grid. Enter or Space checks the current cell. The scanner's accessible label describes only the current row and column, whether the current cell contains a visible number, and which number is required next. It does not publish a list of all number coordinates. This makes the complete game operable without a pointer while avoiding a hidden DOM map of the entire solution.

The visual board is one Canvas element marked hidden from assistive technology because the scanner supplies the equivalent interactive description. Individual numbers are not separate DOM nodes. There are no answer-bearing element IDs, per-number test IDs, coordinate data attributes, CSS classes named after correct values, hidden solution lists, or production solve buttons. The Canvas pixels necessarily show the same scene that a sighted player searches, while the current-cell scanner provides progressive keyboard access instead of exposing every answer at once.

Each cleared board awards exactly 200 points. Completing all five fixed sequences gives the exact maximum score of 1,000. Score does not depend on speed, browser timing, device performance, pointer precision, or input method. There is no countdown and no reaction bonus. A player can pause between searches, use browser zoom, or navigate the grid slowly without losing points.

One distinct mistake remains repairable. The failure signature combines the current scene with the selected logical cell, or with the quantized cell containing an empty pointer press. Repeating the same unchanged wrong choice does not add another miss. Selecting a second different wrong location closes the run. Correct scene completion clears prior failure history before the next board. Completion and deadlock freeze pointer, keyboard, scoring, and scene transitions until Restart restores the exact opening state.

Independent tests own a second literal list of every visible value and cell. They prove that each board contains exactly 1 through N once, all occupied cells are unique, fixture enumeration is not the numeric answer order, and opaque IDs contain no sequence or coordinate encoding. Every number center is checked through the pointer hit-test function, and a point just beyond the published radius must miss. Separate full routes complete all five boards through keyboard cells and pointer coordinates and must produce identical terminal states at exactly 1,000.

The same focused suite verifies grid boundaries, invalid cells, non-finite and out-of-board pointer coordinates, duplicate-error deduplication, the second-distinct-error deadlock, Restart equality, and terminal atomicity. It also scans the component source for forbidden answer, coordinate, value, mark, or cell data attributes and confirms that the Canvas remains semantically hidden behind the single keyboard scanner.

Everything runs locally in the browser with React, Canvas, and the existing GameShell. No image is downloaded, no player data is uploaded, no account or API is required, and no new package is added. The shared shell supplies Restart, local best-score storage, and the double-Escape Boss Key. Blocking local storage affects only the optional best score and never changes a scene.

Hidden Numbers Game is recreational entertainment. It does not measure eyesight, visual attention, reaction time, concentration, cognition, intelligence, school readiness, workplace performance, neurological function, or any medical condition. The five authored boards have no external norms, clinical calibration, educational grading, random difficulty model, or meaning beyond this fixed puzzle.

Methodology & sources

Create five original fixed Canvas scenes with values 1 through N placed in unique cells of a five-by-four logical scan grid. Keep fixture enumeration scrambled and use globally unique opaque word IDs that contain no value, round, ordinal, or coordinate encoding. Paint numbers and geometric decoration onto one aria-hidden Canvas rather than creating per-number DOM nodes. Convert pointer coordinates into the fixed 360-by-240 space and accept only the nearest unfinished mark within a 26-pixel radius. Provide keyboard-equivalent progressive access through one focusable scanner whose Arrow-key cursor exposes only its current cell and whose Enter or Space action enters the same pure selection reducer. Require strict numeric order, award exactly 200 points per board, deduplicate the same scene-cell failure, deadlock on a second distinct failure, freeze terminal states, and make Restart equal the opening state. Independent literal value/cell oracles verify positions, pointer geometry, keyboard equivalence, the exact 1,000-point route, invalid actions, error behavior, and forbidden DOM side channels.

Frequently asked questions

Are these scenes copied from a hidden-number book or illustration?
No. Every board is an original local Canvas composition made from geometric routes, shelves, plots, signals, and machine shapes. No external artwork is loaded or reproduced.
Can the game be completed with a keyboard or screen reader?
Yes. One focusable scanner moves through a five-by-four grid with Arrow keys. Its label describes only the current cell, and Enter or Space checks that location.
Does the score measure eyesight or attention?
No. This is an untimed fixed recreational puzzle, not a vision, attention, reaction, cognitive, educational, workplace, neurological, or medical assessment.

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