Reference

Stone placement and rules

Review legal moves, flipping, passes, and end conditions at any time.

Reversi reference

Bracketing and winning

Open it only when you need to check something.

Move record and board coordinates

Standard human-readable notation

Move record and coordinates Move-record coordinates D3

Code for storage and integration Coordinates d3

The upper-left square is A1.

Visual reference

Stone catalog

Each disc has a Black and White side. It is placed with the current color face up and flips whenever it is sandwiched.

64 discs

Reversi discs

Two sides of one disc

Black side The side placed by Black. Black usually moves first.

White side The side placed by White. It flips to Black when sandwiched by Black discs.

Place

A square that brackets an opponent You may play only where the new disc brackets at least one opposing disc.

Flip

Vertical, horizontal, and diagonal lines Flip every line of opposing discs bracketed between the disc you played and one of your existing discs.

Pass

When there is no legal move Pass only when there is nowhere you can play.

Winner

The player with more discs at the end Count the discs when neither player can move or the board is full.

Play only where you can bracket Check every vertical, horizontal, and diagonal direction Corners are difficult to flip Pass only when no move is available The color with more discs at the end wins

Legal moves

Play where a continuous line of opposing discs will lie between the new disc and one of your discs.
Bracketing in even one direction makes the move legal, and a single move can flip multiple directions.

End of game

The game ends when neither player can move or the board is full.
The color with more discs on the board wins.

Reversi

Learning

CMS managed tracks

Learning Rules

Flipping Discs, Passing, and Determining the Winner

Learn to Enclose and Flip, Pass When You Cannot Move, and Count Discs at the End

2Modules 10Items

Reversi Basics Beginner / 4min

Place discs to enclose opposing discs between your own, flip the enclosed discs, and decide the winner by the final disc count.

Article Finish with More Discs of Your Color
Position puzzle Place a Disc to Enclose the Opponent
Move sequence Flip the Enclosed Discs
Multiple choice You Cannot Play Where No Discs Are Enclosed
Multiple choice The Player with More Discs Wins

Practical tutorial Beginner / 7min

Learn to make decisions about corners, edges, and opening patterns using mobility, stable discs, and parity.

Article Reduce the Opponent's Legal Moves and Secure the Last Move
Article Prioritize Mobility over Disc Count
Article Distinguish Corners, Edges, X-Squares, and C-Squares
Article Design the final turn with parity
Article Learn Opening Shapes, Not Just Their Names

Reversi

Reversi Basics

Beginner

Practice the basic controls right here

Choose a step in the inline tutorial below to review the flow.

Placement and flipping rules

Open it only when you need to check something.

Next step

Choose after the tutorial

Once you are comfortable moving pieces, review anything that was unclear or practice your decisions with a short problem.

Learn: Your first three minutes Briefly review the objective of Reversi and the first action to take. Web tutorial Learning: Rules quick reference Review how to move, capture, and win on one screen whenever you are uncertain. CMS guide Training: Short problems After reviewing the basics, reinforce your decision-making with short problems. Practice before a match Mastery: Maxims and competitive philosophy Read about strategy, whole-board vision, decisions, and competitive philosophy unique to Reversi in a practical guide. Reading