Configurable Reversi

Game Setup

Player Mode

Players

Computer plays

Computer difficulty

Computer move delay

Board and Rules

Board size

White moves first

Show legal moves

Difficulty Guide

Easy plays a random legal move. Medium plays greedily, weighing immediate flips against board position. Hard looks several moves ahead with a positional and mobility evaluation. Expert searches deeper still and solves the endgame exactly once few squares remain. Search depth scales down on larger boards to keep moves prompt.

This standalone version implements the full Othello rules: a move must flank at least one opposing line, all flanked discs are flipped, a player with no legal move passes, and the game ends when neither player can move or the board is full. Board sizes are even (4×4 to 16×16) because the standard four-disc opening requires an even board. Note that in tournament Othello black conventionally opens; here white moves first by default, but this can be toggled above.

Board8×8

ModeVs computer

TurnWhite

DiscsB: 2 · W: 2

Move1

Press Start / reset game to begin.

Configurable Reversi v1.0 - Written by Jonathan Fielder-White

Current Game Summary

Move History