5D Reversi
4D Spatial Strategy with Temporal Retrocausality
Board Size
4 × 4 × 4 × 4
6 × 6 × 6 × 6
8 × 8 × 8 × 8
Difficulty
Easy
Medium
Hard
Mode
Player vs Player
Player vs AI
Start Game
2
Black's Turn
2
Quit to Menu
XY
XZ
YZ
WX
WY
WZ
Select your past turn:
⚡
Retro Mode
Pass
💾 Export
📂 Import
History:
Turn 1
Game Over
Black Wins!
2
2
Play Again
💾 Export Log
Main Menu