Bagha-Chall

Infobox_Game
subject_name=Bagh Chal
image_caption=Empty Bagh-Chal board
image_link=
players=2
ages=Any
setup_time=< 1 min
playing_time= < 1 hour
complexity=Low
strategy= High
random_chance=None
skills= Strategy
footnotes =

Bagh-Chal (meaning "Change of Tigers", or "Moving Tigers") is a strategic, two-player board game that originates in Nepal. The game is asymmetric in that one player controls four tigers and the other player controls up to twenty goats. The tigers 'hunt' the goats while the goats attempt to block the tigers' movements.

The game is played on a five by five point grid, like alquerque (an ancestor of draughts or checkers). Pieces are positioned at the intersection of the lines and not inside the areas delimited by them. Directions of valid movement between these points are connected by lines. The game play takes place in two phases. In the first phase the goats are placed on the board while the tigers are moved. In the second phase both the goats and the tigers are moved. For the tigers, the objective is to "capture" five goats to win. Capturing is performed as in alquerque and draughts, by jumping over the goats. The goats win by blocking all the tigers' legal moves. It has many similarities to the Indian game Aadu puli aattam (goat-tiger game), though the board is different.

Rules

At the start of the game all the four tigers are placed on the four corners of the grid, facing the center. All goats start off the board.

The pieces must be put at the intersections of the board lines and moves follow these lines.

The player controlling the goats moves first by placing a goat onto a free intersection on the board. Then it is the tigers' turn. One tiger is then moved to an adjacent position along the lines that indicate the valid moves. Moves are alternate between players.

Tigers capture goats by jumping over them to an adjacent free position (as in checkers). Goats can not move until all 20 have been put on the board.

The tigers must move according to these rules:

# They can start capturing goats any moment after the match has started.
# They can capture only one goat at a time.
# They can jump over a goat in any direction, but it must be to an adjacent intersection following any of the lines drawn on the board.
# A tiger cannot jump over another tiger.

The goats must move according to these rules:

# They must leave the board when captured.
# They can not jump over the tigers or other goats.
# They can only move after all 20 have been put on the board.

The tigers win once they have captured five goats. Goats try to avoid being captured (jumped over) and they win by blocking the tigers' moves till they are unable to move.

Sometimes the game could fall in a repetitive cycle of positions; especially goats may use this resort to defend themselves from being captured. In order to avoid this kind of situation, and additional rule has been established: when all the goats have been placed, it is not allowed to perform any move that causes any situation of the pieces that has been already repeated during the same game.

External links

* [http://www.ludoteka.com/baghchal-en.html Description of the Bagh Chal rules.]
* [http://baghchal.canalblog.com/ The Bagh Chal rules in french]
* [http://www.boardgamegeek.com/game/315 BoardGameGeek's page about "Bagh Chal"]
* [http://www.baghchal.com.np Anup's Baghchal]
* [http://www.yewjin.com/papers/Computing_Tigers_And_Goats.pdf Computing Tigers and Goats,a research paper by Lim Yew Jin & J. Nievergelt]
* [http://baghchal.dhungana.at/index.htm Baghchal rules and Java program for free download]
* [http://goatsandtigers.com A free downloadable Bagha Chal game for Windows]
* [http://www006.upp.so-net.ne.jp/wkenji/ Introduction about Bagha Chal games in Japanese. ]