How to Play

Goal: AjeDoku (ah-jeh-DOH-koo) is a chess-themed variant of sudoku: Ajedrez (Spanish for chess) & Sudoku. Fill the 9x9 grid so that every Row, Column, and 3x3 Box contains exactly one of each of the 9 pieces.

Peace Treaty: In addition to normal Sudoku rules, Visitor pieces (enemy color) cannot attack the Host King (friendly color) within the same 3x3 Box.

Attacks: Standard chess moves apply. Sliding pieces (Rook, Bishop) only attack if ADJACENT to the King (empty squares are assumed to be filled later, blocking the path). Knight attacks in a L shape regardless of pieces in the way.

Validation: If a placed piece is highlighted in red, it has violated a rule. Roll-over the piece to see what rules have been broken (a combination of Duplicate in Row, Duplicate in Column, Duplicate in Box, Attacking Host King).

Game Assistance:

Visual hints: Get visual confirmation when you have CORRECTLY completed a row, column or 3x3 box.

Auto-candidates: Show all possible pieces that can be added to a square without violating a rule. As you place pieces, this automatically updates. If you turn this off, the placed pieces remain, but the automatic updates stop. If you click the button one more time, the auto-candidates are all cleared.

Notes: Add pieces manually to squares to help you keep track of where they can viably be placed.

Feedback: Confused? Run into any issues? Stuff you like or dislike? Send us an email - we are all ears! hi@ajedoku.com

Mobile App In Development

The AjeDoku mobile app is currently being built for iOS and Android.

Want to play on mobile sooner? Drop us a line!

hi@ajedoku.com