Guide Book

The Objective

Fill the 9x9 grid so every row, column, and 3x3 box contains the numbers 1 to 9. In this version, you compete with others to place the most correct numbers before lives run out or the board is cleared!

Game Modes

LOCAL MULTIPLAYER

Pass-and-play with 2 to 5 friends. Custom names and colors included!

PUZZLE BUILDER

Collaboratively construct a valid Sudoku from a blank board against a strategic CPU. Perfect for practice.

ONLINE MULTIPLAYER

Create a room code and invite a friend for a real-time remote duel.

MINI GAME SURVIVAL

High stakes! No hearts. Every correct input changes the game rules (Blocked zones, Number locks, etc). See how many rounds you can last!

Dilemma Tiles

Tiles with glowing dashed borders are Dilemmas. They look identical but contain either a boost or a trap!

Manual Power-Ups

PEEK: Briefly reveals the correct number in a random empty cell.

SKIP: Safely passes your turn (Competitive) or refreshes the rule (Survival).

DEFER: Instantly adds +10 seconds to your current turn timer.

Automated Effects

Triggers include: Shields (absorb 1 damage), Extra Turns, Opponent Damage, Heart Steals, or Freezing the enemy!

Hidden Bombs

Correct inputs on these tiles still damage you! They only reveal themselves after being triggered by a correct (but trapped) move.

Survival Mechanics

  • 1

    Zone Restricted: A specific row, column, or 3x3 box is strictly blocked for input.

  • 2

    Safe Zone Only: Inputs are ONLY permitted within one designated row, column, or box.

  • 3

    Number Lock: You are restricted to using only one specific digit for that move.

  • 4

    Speed Blitz: The timer is slashed to just 8 seconds per move!

  • 5

    Danger Zone: No more help! All special tiles become hidden bombs instantly.

  • 6

    Forbidden Digit: One random number is strictly cursed and cannot be used for that round.

  • 7

    Combo Streak: Get 5 consecutive correct answers to earn a random Peek, Skip, or Defer power-up!

Round 1

Constraint Name

Explanation of the mechanic goes here. One mistake ends the game!

Signal Matchmaking

Connect with players worldwide

Picks up nearby players automatically

Room Code
------
Player 1 (Host): Ready
Player 2: Waiting...
5

Starting Match...

Automatic start when 2/2 players join

Joined! Waiting for 2/2 players...

Local Setup

Choose players & names

Builder Rival

Pick your opponent model

MODE: LOCAL | SESSION: NONE
10.0s

Sudoku Duel

PLAYER 1 WINS!
P1 LIVES
3
P2 LIVES
0

Global Top Survival Players