Fanorona

Fanorona is a board game from Madagascar and was derived from Alquerque.

Introduction

Fanorona has three standard versions: Fanoron - Telo, Fanoron - Dimyand and Fanoron - Tsivy. The difference between these variants is the board size. Fanoron - Telo is played on 3 × 3 and is therefore as simple as tic- tac -toe. Fanoron - Dimyand is played on 5 × 5, the most popular variant Fanoron - Tsivy on 9 × 5

The 22 black and white stones are placed on all points except at the center. The goal is to catch all the opponent's pieces. If this is not two, the game is a draw. You start by drawing up a stone to or away from it. Fanorona is very popular in Madagascar. The legend of King Ralambo (1575-1610) states that the king wanted to bequeath his kingdom to that of his sons, who first reached his castle. But the eldest son tried to win a situation of three to five stones, and therefore came too late.

The board

Fanorona the board is composed of lines, connection points, which form a 5x9 grid. Stones draw on the lines for each and every train only to an adjacent point. There are weak and strong points. From a weak point may be only horizontal and vertical pull, a strong point even diagonally.

Main variant of the rules of movement

  • White begins, players take turns.
  • Each train consists of the movement of a stone on a neighboring point on a line.
  • A train, where nothing is caught, ie paika.
  • Hitting is mandatory.
  • Captured stones are removed from the board. Hitting is performed by approaching and deduction: The approach is a train in the direction of opposing pieces on the same line.
  • A deduction is a train away from opposing stones on the same line.
  • The stone may not move onto a point that he had occupied in the current sequence of moves.
  • The stone has to change its direction of pull.

Analysis

On the basis of 10,000 games, the search tree complexity than in 1046 and the state -space complexity than 1021 was calculated using the alpha-beta search.

2007, all variants of Fanorona were weakly resolved. The game is without error in both early trains f2 - E3A and d3- E3A from getting a draw.

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