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Quoridor is an abstract board game for 2 or 4 players. Players move their pawns to reach the opposite side before their opponents; however, the defining quality is that players can place walls on the board that block all pawns, thus forcing pawns to navigate their way around the walls.
'''[https://www.quoridorfansite.com/tools/freeboard.html Freeboard]'''
<div style="float:right;">{{infoBox |topLeftColour=#987 |middleColour=#a98 |bottomRightColour=#a98
|title=Starting position</b>
|body={{quoridorboard |squareSize=30 |gridlineThickness=7.5
|e9={{blackStone}}
|e1={{whiteStone}}
}}
</center></div>
}}</div>


== Start of the game ==
== Overview ==
The board is 9x9 by size. Each player has one pawn, placed in the middle of their respective side. There are 20 walls, distributed equally to all players (10 each for two or 5 each for four).


== Player's turn ==
* Abstract game played on a 9×9 board.
In a player's turn, a player must do one of the following:
* 2 or 4 players.
* move their pawn, or
* The first player to move their pawn to the opposite side of the board wins.
* place a wall.
* Walls can be placed to restrict pawn moves.


=== Moving a pawn ===
== Game play ==
A player can move a pawn to an adjacent square in the four orthogonal directions (front, back, or sideways). The pawn may not cross past a wall. The pawn may never occupy the same square as an opponent's pawn; if an opponent pawn is adjacent, the player can jump over the opponent's pawn. If there is no wall, no board edge, and no other pawn behind the opponent's pawn, the jump must be straight (the player's pawn moves two squares in that direction). Otherwise, the jump must be diagonal (the player moves to the opponent, then moves sideways). Jumping is never mandatory.


=== Placing a wall ===
* Each player has one pawn which starts in the middle of their respective side.
There are some walls in a player's inventory. Each wall are two squares long. A player may place a wall inside the board, between the squares. The wall may not jut out of the board, and it must be aligned with the grid, so that it blocks two pairs of adjacent squares. A wall blocks all pawns' movements; no pawn can jump over a wall. However, there must always be at least one path for each pawn to reach the opposite side; a wall may not be placed to completely isolate a pawn from their destination side.
* 20 walls are distributed equally to all players.
** ''i.e. 2 players: 10 each.''
** ''i.e. 4 players: 5 each.''
* Players take turns to either:
# '''[[#Move_a_pawn|Move their pawn]]'''
#: OR
# '''[[#Place_a_wall|Place a wall]]'''


Note that walls are limited; if a player uses up all their walls, they can no longer place walls.
=== Move a pawn ===


== End of the game ==
<div style="float:right;">{{infoBoxes |maxWidth=280
If a player's pawn reaches any one of the nine squares on its destination side, opposite of the starting side, the player wins.
|title1=Legal pawn moves I
|title2=Legal pawn moves II
 
|body1=<div><center>
<div style="position:relative; width:180px; height:180px; overflow:hidden; margin:1rem;"><div style="position:absolute; bottom:0px;">
{{quoridorboard |squareSize=30 |gridlineThickness=7.5 |borderThickness=0 |hideNotation=
|c3={{blackStone}}
|c2={{whiteStone}}
|c1v=1
|highlightc1=#0808
|highlightb2=#0808
|highlightc4=#0808
|highlightc3=#8008
|highlightd2=#8008
}}</div></div>
The white pawn may move '''backwards''', to the '''left''' or '''jump''' over the black pawn.
 
A pawn may not move through a wall or onto the same square as another pawn.
</center></div>
 
|body2=<div><center>
<div style="position:relative; width:180px; height:180px; overflow:hidden; margin:1rem;"><div style="position:absolute; bottom:0px;">
{{quoridorboard |squareSize=30 |gridlineThickness=7.5 |borderThickness=0 |hideNotation=
|c3={{blackStone}}
|c2={{whiteStone}}
|c3h=1
|highlightc1=#0808
|highlightb2=#0808
|highlightb3=#0808
|highlightd2=#0808
|highlightd3=#0808
}}</div></div>
The forward jump is blocked by a wall.
 
The active white pawn may additionally move to squares orthogonally adjacent to the black pawn.
</center></div>
}}</div>
* Adjacent squares in orthogonal directions.
** ''i.e. forwards, backwards, or sideways.''
* Not through a wall.
* Not onto the same square as another pawn.
* Jump over an orthogonally adjacent pawn:
*# Two squares in the direction of the adjacent pawn.
*#* ''If there is no other pawn, fence or board edge preventing this move to the destination square.''
*# Otherwise one square diagonally.
*#* ''If there is no other pawn, fence or board edge preventing this move to the destination square.''
*#* ''i.e. the active pawn moves to the adjacent pawn and then one square at a right angle.''
* Note: jumps are never mandatory.
 
=== Place a wall ===
 
* Each wall is two squares long.
* Must be placed between squares, aligned with the grid.
* May not jut out of the board.
* May not block all paths for each pawn to reach their destination side.
* Note: if a player places all their walls, they can no longer place walls.
 
== Game end ==
 
* A player wins if their pawn reaches any one of the nine squares on its destination side, opposite to their starting side.
* A team wins if '''either pawn''' reaches its destination side.

Revision as of 21:10, 3 February 2022

Freeboard

Starting position
A
B
C
D
E
F
G
H
I
9
9
8
8
7
7
6
6
5
5
4
4
3
3
2
2
1
1
A
B
C
D
E
F
G
H
I

Overview

  • Abstract game played on a 9×9 board.
  • 2 or 4 players.
  • The first player to move their pawn to the opposite side of the board wins.
  • Walls can be placed to restrict pawn moves.

Game play

  • Each player has one pawn which starts in the middle of their respective side.
  • 20 walls are distributed equally to all players.
    • i.e. 2 players: 10 each.
    • i.e. 4 players: 5 each.
  • Players take turns to either:
  1. Move their pawn
    OR
  2. Place a wall

Move a pawn

Legal pawn moves I

The white pawn may move backwards, to the left or jump over the black pawn.

A pawn may not move through a wall or onto the same square as another pawn.

Legal pawn moves II

The forward jump is blocked by a wall.

The active white pawn may additionally move to squares orthogonally adjacent to the black pawn.

  • Adjacent squares in orthogonal directions.
    • i.e. forwards, backwards, or sideways.
  • Not through a wall.
  • Not onto the same square as another pawn.
  • Jump over an orthogonally adjacent pawn:
    1. Two squares in the direction of the adjacent pawn.
      • If there is no other pawn, fence or board edge preventing this move to the destination square.
    2. Otherwise one square diagonally.
      • If there is no other pawn, fence or board edge preventing this move to the destination square.
      • i.e. the active pawn moves to the adjacent pawn and then one square at a right angle.
  • Note: jumps are never mandatory.

Place a wall

  • Each wall is two squares long.
  • Must be placed between squares, aligned with the grid.
  • May not jut out of the board.
  • May not block all paths for each pawn to reach their destination side.
  • Note: if a player places all their walls, they can no longer place walls.

Game end

  • A player wins if their pawn reaches any one of the nine squares on its destination side, opposite to their starting side.
  • A team wins if either pawn reaches its destination side.
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