Easy Hidato puzzles are the smallest legitimate version of the number-path puzzle, built on a 4 by 4 grid with sixteen active cells, six fixed clues, and a single verified path from 1 to 16. On the Lizely Hidato board, easy means the route is short enough to solve in a few minutes, dense enough to require real diagonal reasoning, and uniquely determined by the clues you start with. The six given values are 1, 2, 6, 10, 12, and 16, and every one of them is necessary. Remove any single clue and the same 4 by 4 board suddenly allows at least two different solutions, which is why an independent backtracking oracle proves uniqueness before the puzzle is published. For a first-time player, that combination is exactly what makes the game approachable without being trivial. The board stays fully visible on a 390-pixel phone screen, the on-screen number pad covers every value from 1 through 16, and keyboard play covers every action including arrow movement, multi-digit entry, clear, and Enter to check. Easy on this board is not a synonym for easy in general. It is a precise contract: a 4 by 4 grid, six necessary clues, eight-direction adjacency, and a single 1,000-point solution you can reach with logic.
What Makes a Hidato Puzzle Easy
Easy Hidato puzzles are defined less by giving answers away and more by small board size, generous clue coverage, and a single, fully verified path. On the Lizely board, easy means sixteen active cells, six fixed clues, and one and only one path from 1 to 16. If you have never solved a Hidato before, this is the smallest legitimate version of the puzzle you can find, and it is the safest place to learn the eight-direction rule. The board is fully visible on a phone screen, the clues are spread across all four rows, and diagonal moves are required to finish the path, so the puzzle stays genuinely logical rather than a fill-in-the-blank exercise.
The 4 by 4 Board and the Six Immutable Clues
The board you are solving contains exactly sixteen active cells, arranged in four rows and four columns. Six of those cells are shaded and pre-filled. Their values are 1, 2, 6, 10, 12, and 16. These six numbers are the only starting information you receive, and they cannot be moved, edited, or replaced during play. Reading them in order tells you immediately where the path must begin and end: 1 sits on the board as the start, 16 sits on the board as the finish, and the four mid-path clues are the landmarks you work toward.
The remaining ten cells are unshaded and empty. Each one waits for a single integer from 1 through 16, but no value can be used twice. Once all sixteen cells are filled, the puzzle is complete. The size of the board is what makes it easy: every move is visible at once, and the constraint pattern is dense enough that guessing is rarely necessary.
Rules Every Beginner Needs to Know
Beginner Hidato rules come down to three conditions, and each one is enforced on the Lizely 4x4 board.
- Use every value exactly once. The numbers 1 through 16 must each appear once across the sixteen active cells. Repetition is technically allowed during play for temporary reasoning, but a complete and correct board has no repeats.
- Consecutive pairs must touch. Every n and n plus 1 pair must occupy cells that touch horizontally, vertically, or diagonally. Diagonals count, which is why Hidato is sometimes called a king-move puzzle.
- Clues are fixed. The six shaded cells cannot be changed, and the values they hold must match the puzzle's intended route.
On a chess board, a king moves one square in any of eight directions. A Hidato path is a single king-sized chain that walks through every cell exactly once. On the 4x4 board, even short diagonal segments are enough to make the route twist and force real deduction, which is why the easy label is about size, not about giving the answer away.
How to Play the 4x4 Hidato
- Open the Hidato board and review the six shaded clues. Locate 1 and 2 first, then 16 and 12, then 6 and 10. The forced pair of 1 and 2 tells you where the path begins, and the pair of 12 and 16 tells you where it ends.
- Select any unshaded cell. On a phone, tap the cell you want to fill. On a keyboard, use the arrow keys to move the cursor one cell at a time. The selected cell is highlighted but the board state does not change.
- Enter a value from 1 through 16 into the selected cell. Use the on-screen number pad, or type a one- or two-digit value. The short entry buffer accepts 1 followed by 4 as 14, and moves to a fresh entry the moment you press an arrow key or a number button.
- Use the clues to reason out the next value. Because every consecutive pair must differ by at most one row and one column, count the distance between any two adjacent clue values before committing a number to a new cell.
- Use Clear selected to remove a value you placed in an unshaded cell. Clear never changes a shaded clue.
- Fill every cell deliberately. You can check an incomplete board at any time, but the rule engine does not record a mistake for missing cells. It only reports that the path is incomplete.
- Press Enter to check the full board. On a touch device, tap the check button. A first completed board that is wrong stays editable and records one mistake. A second wrong full board deadlocks the run until you restart.
- Hit Restart to restore the six given clues, clear every player entry, reset the cursor, score, and feedback, and start a clean run.
Strategy for Solving the Easy Hidato
The Lizely 4x4 board is uniquely suited to a beginner strategy because the dense clue coverage leaves few dead ends. Three tactics work especially well at this size.
Force the short links first. Examine the cells directly around 1 and 2. On a 4x4 board, the cells that touch both clues are heavily constrained, so the value that belongs in the second cell of the pair is usually forced. The same applies to 15 and 16 at the far end of the path. Lock these in before guessing elsewhere on the board.
Work backward from 16. Walking from 16 toward 12 is often easier than walking from 1 toward 6, because the late-path values are physically clustered near the bottom-right corner of the board. Identify which cells can hold 15, then 14, then 13, and the route almost draws itself in reverse.
Count options before committing. For each empty cell, ask how many of the surrounding cells could legally hold the value you want to place. If the answer is one, place it. If the answer is more than one, move to a cell where the answer is one. This is the same elimination logic used in Sudoku, and it works here because the clues in easy Hidato are tight enough to leave single-choice holes behind.
You are allowed to leave temporary duplicates on the board while you reason. The duplicate itself is not a mistake. Mistakes are only recorded when a fully populated board fails a check. Use this to sketch a branch, then clear the unwanted entry explicitly before submitting the final board.
Why All Six Clues Are Necessary
The Lizely Hidato board is verified by an independent backtracking oracle that walks every possible path on the 4 by 4 king-move graph. With all six clues, the oracle finds exactly one solution. If you mentally remove any single clue, the same oracle finds at least two valid paths. That means none of the six given numbers is decorative. Each one is required to pin the route down to the single solution published on the board.
For a beginner, this is reassuring. You are not looking for a shortcut or a clever trick. The puzzle is built so that the only answer is the answer, and the six clues you start with are the minimum set of hints that makes that possible. The proof is mechanical, not assumed from the displayed answer.
Controls, Scoring, and the Boss Key
The Lizely 4x4 Hidato is built to be fully playable on a phone or entirely by keyboard. Touch selects an unshaded cell and a tap on the number pad places the value. Keyboard players can move with arrow keys, type a one- or two-digit value, press Delete or Backspace to clear the selected editable cell, and press Enter to check the board. The pitch of the board, the size of the number pad, and the width constraint are all tuned so the entire puzzle fits on a 390-pixel screen without horizontal scrolling.
Scoring is exact. A valid complete board awards exactly 1,000 points. An incomplete check costs nothing. A first wrong full board records one mistake and remains editable. A second wrong full check deadlocks the run until Restart. There is no time penalty, because the board is fixed and replay becomes easier through memory, so elapsed time is not part of the score.
If you need to hide the board quickly, double-tap the Escape key. The screen switches to a spreadsheet-style boss view, and another double Escape returns to the puzzle. No account is required, no board state is uploaded, and the game runs entirely inside the browser as a small React client.
Adjacent Logic Puzzles Worth Trying Next
The 4x4 Hidato sits in a small family of compact logic puzzles that mix number placement with neighbor constraints. If you enjoy the eight-direction king-move rule, a few other Lizely games use similar reasoning at a similar size.
| Puzzle | Grid shape | Core rule | Why it pairs with Hidato |
|---|---|---|---|
| Hidato | 4 by 4 | Walk 1 to 16 with consecutive king-move neighbors | Compact, uniquely verified, beginner-friendly |
| Nonogram | 5 by 5 | Shade cells from row and column clue counts | Same small visible board, opposite deduction style |
| Skyscrapers | 4 by 4 | Place heights 1 through 4 in each row and column | Same number range, same dense clue count |
| Hashi Bridges | Six islands | Connect islands with non-crossing single or double bridges | Same independently verified unique solution approach |
You rotate from the Lizely Hidato puzzle directly into any of these without leaving the games section, and each one keeps the same keyboard-first, transparent-checking style. For a deeper walkthrough of the keyboard controls and the touch layout, see the companion guide on playing Hidato on a phone or entirely by keyboard.