Rhode

Overview

Rhode thumbnail imageRhode is a two-player abstract board game invented by Luis Bolaños Mures in 2016. This game is a member of the connection game family, including such games as HexSlither or Quax.

Board

Rhode is played on a the intersections (points) of a square grid. The left and right edges of the board are colored white; the top and bottom edges are colored black.

13x13 Rhode board

Objective

The game is won by the player who completes a chain of orthogonally adjacent stones of their color touching the two opposite board edges of their color. A corner is considered to be part of both adjoining edges.

No draws are possible in Rhode.

Definitions

A weak pair is a set of two like-colored, diagonally adjacent stones such that there is no like-colored stone orthogonally adjacent to both. Examples of white weak pairs:

2x2 area with two diagonally adjacent white stones and two empty points                2x2 area with two diagonally adjacent white stones and one black stone

A crosscut is a 2x2 set of stones consisting of two diagonally adjacent black stones and two diagonally adjacent white stones, like this:

2x2 area with two diagonally adjacent white stones and two diagonally adjacent black stones

A stone can be part of several crosscuts at the same time.

Play

The game begins with an empty board. Each player has an allocated color: Black or White. Black plays first, then turns alternate.

At the start of your turn, if there are any friendly weak pairs on the board, you must place a stone of your color on an empty point that is orthogonally adjacent to the two stones in one of those pairs. If there are no such pairs, you must place a stone of your color on any empty point.

After a placement, all friendly stones, except the one just placed, that are part of any crosscuts are removed from the board, after which the turn ends. There will be no crosscuts remaining on the board at this point.

The pie rule is used in order to make the game fair. This means that White will have the option, on their first turn only, to change sides instead of making a regular move.


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