From the official rules: http://www.icehousegames.org/wiki/index.php?title=Logger

Theme

• Four rival lumberjacks are competing to chop down the most trees for their business.
• However, standing in their way are tree-hugging hippies protesting the deforestation.

Setup

• Place a seedling on the centre of the board.
• The remaining pyramid pieces from the Rainbow stash are kept aside in a common pool.
• Starting with the first player, each player places their logger on a corner of the board.
• Each player also starts with 1 protester in their supply (2 protesters for a 2-player game).
• Remember who went first as this will be important at the end game.

Goal

• The winner is the player with the most points at the end of the game.
• Note: Though scoring 10 points triggers the end game, having 10 points may not be enough for victory.

Game play

Each player's turn consists of three parts:

1. Movement

No Diagonals

• Diagonals do not exist in Logger.
• Any rule pertaining to adjacency or movement is orthogonal only.

Move your logger up to two spaces

• Loggers may not occupy or walk through spaces occupied by trees or other loggers.

2. Growth

• All trees in the same row and column your logger occupies grow 1 stage.
• All seedlings become saplings and all saplings become mature trees.
• Mature trees produce 1 seedling in any space adjacent to them if able.
• Note: growth of all trees is considered simultaneous, so no tree should experience two stages of growth in one turn, nor should any seedlings newly spawned from a mature tree this turn.
• All trees in your logger's row and column must grow or create a new seedling if able.

3. Action

• There are three options in the Action phase: Plant, Protest and Chop.
• You must perform an action if able.
• This phase is skipped if your logger is unable to perform any action.

Plant

• Plant one seedling in any space adjacent to your logger.

Protest

• You may place one or more protesters from your supply onto mature trees.
• Protested trees may not be directly chopped down by any player.

Chop

• Chop down an un-protested mature tree adjacent to your logger by removing it from the board.
• Chopping will create a domino effect.
• Any mature tree behind the first chopped tree will also be considered chopped and so on regardless if they have protesters on them not.
• This process stops when either the edge of the board or a space occupied by anything other than a mature tree is reached.
• Score 1 point for each tree removed in this way.
• Add any protesters from felled trees to your supply.
  • Example:
    • A given row can have this formation: Player - Mature Tree - Mature Tree - Sapling - Mature Tree
    • When the player chops the first tree, the second one will be removed as well.
    • However, the domino effect ends at the sapling because it is not fully mature.
    • The sapling and the last mature tree remain on the board.

Game end

• Logger is a game of equal turns.
• When a player reaches 10 points, the end game condition is reached.
• All players who have not had a turn this round will get one final turn.
  • Example:
    • Player 2 reaches 10 points.
    • Players 3 and 4 will receive one additional turn, but Player 1 does not.
    • However, if Player 4 reaches 10 points, the game ends immediately.
• The player with the most points at the end of the game wins.
• In case of a tie, the player with more protesters in reserve wins.

Glossary

The following terms are used in Logger:

Tree

Any seedling, sapling or mature tree on the board.

Seedling

A large pyramid.

Sapling

A large pyramid with a medium pyramid stacked on it.

Mature Tree

A stack of pyramids. From top to bottom: small, medium, large.

Protester

Denoted by a volcano cap.

Logger

A piece representing the player. Denoted by a medium pyramid of a colour not used for trees. Non-Icehouse pieces like meeples may be also used.