Sudoku Rush

Why play Sudoku Rush on Arcadity

• Scan rows, columns, and boxes for cells with only one legal number.
• Wrong entries use your mistake allowance; erasing one does not undo the mistake.
• Shared rules and time limits make solving speed easy to compare.

How to play Sudoku Rush

1. Fill a 9-by-9 grid so each row, column, and 3-by-3 box contains the digits 1 through 9 without repetition. The starting clues are fixed.
2. Click or tap an empty cell, then choose a number on the on-screen keypad. On a keyboard, use the arrow keys to move the selection and keys 1 through 9 to enter a digit.
3. A correct entry earns 100 points and locks in place. A wrong entry stays editable and adds a miss. Replace it with the correct digit, or use the eraser, Backspace, or Delete to clear it; erasing does not undo the recorded miss.
4. Work through the cells you can prove from the row, column, and box. Finish before the displayed timer reaches zero and before you reach the allowed miss limit.

Accuracy, fixed entries, and time limits

• The game checks entries against the puzzle's solution immediately. A digit can be wrong even if it does not visibly repeat another digit yet. Avoid using guesses as temporary notes.
• Starting clues and correctly filled cells cannot be erased or changed. When all nine copies of a digit are correctly present, its keypad button becomes unavailable.
• The round ends on a complete solution, when time runs out, or when you reach the miss limit. Built-in Easy allows 5 misses; Normal and Hard allow 3. Reaching that count ends the round.
• Built-in clock defaults are 6 minutes for Easy, 7 for Normal, and 8 for Hard. A match or challenge can provide a different limit, so the timer shown in your round takes precedence.

How Sudoku Rush scores

Each correctly filled blank is worth 100 points. Finishing a row, column, or box triggers visual feedback but adds no separate unit bonus. There is no accuracy-streak multiplier.

At settlement, each unused miss allowance adds 500 points. Correcting or erasing an error does not restore that allowance. You can receive the unused-miss bonus when time runs out, even if the puzzle is unfinished.

Completing the whole puzzle also adds 10 points per remaining second. An unfinished grid receives no time bonus. Final score is fill points plus unused-miss bonus plus any completion time bonus.

Worked example: solve the first row with three forced entries

This is an actual puzzle generated by the current game core with seed 12345 on Normal difficulty: 42 given clues and 39 blanks. It is a reproducible teaching sample, not a promise about your next match or an active event's seed.

Rows are numbered top to bottom and columns left to right. Gold marks the cell being considered; cyan digits are correct entries already locked by the game. Use the visible row, column, and box clues to justify each fill.

1. Find the first row's missing digits

Row 1 reads 1, blank, blank, 2, 9, 7, blank, 5, 4, so its missing digits are 3, 6, and 8. At row 1, column 2, the column already contains both 6 and 8. Only 3 remains possible.

2. Lock in 3

Enter 3 at row 1, column 2. It locks and adds 100 points. The row now needs only 6 and 8; column 7 already contains a 6, so row 1, column 7 must be 8.

3. Place 8 in column 7

Enter 8 at row 1, column 7 for another 100 points. Row 1 now has a single blank at column 3, and the only missing digit is 6.

4. Complete the row with 6

Enter 6 at row 1, column 3. Row 1 becomes 1, 3, 6, 2, 9, 7, 8, 5, 4. Three correct fills give 300 points in total; completing the row adds no extra score. The rest of the puzzle remains open.

Challenge a friend to beat your Sudoku Rush score

Add a friend on Arcadity, then send them a Friend Duel for Sudoku Rush from your friends list. It is a 2-player match with the same seed, rules and time limit for both players. Your friend must accept within 24 hours. Each of you plays one attempt whenever it suits you, and the higher score wins.

Lobby 2P/4P/8P modes match you with other players or bots, not friends. The 4-player and 8-player knockout brackets have two and three rounds respectively. Each round is a 1v1 pairing with its own seed; the two opponents share the same rules and time limit. Play is asynchronous.

Use Share Result to show off your score. It shares a result page with a link to the game; starting from that page creates a new match with a new seed. To compete with a friend under the same setup, send a Friend Duel from your friends list. The time limit shown in your round applies, including when it differs from the standard difficulty settings.

Sudoku Rush score strategy

• Begin with rows, columns, or boxes that have few blanks. Write the missing digits mentally, then eliminate candidates using the other two units that cross your target cell.
• Recheck a unit after every locked entry. A single correct digit can turn a nearby cell into another forced move, as the first-row example shows.
• Do not enter a digit merely because it avoids an immediate duplicate. If more than one candidate fits, move to another cell and return with more information.
• Keep your miss allowance intact when the clock is low. Correct partial progress still scores, while repeated guesses can consume the remaining allowance and end the round early.

Sudoku Rush FAQ