Daggers is an asymmetrical abstract board game played on an 8x8 board.
As described by João Pedro Neto on The World of Abstract Board Games:
UPHILL & DOWNHILL - "Downhill" refers to the direction towards the "Low player", and "Uphill" refers to the direction towards the "High player".
DAGGER - Daggers slide along the column or diagonals downhill as far as they like, but only one cell uphill or diagonally uphill. There is no side movement. Daggers can capture any piece along the diagonals (going either uphill or downhill) and can capture Crowns (but not Daggers) along the column.
CROWNS - A Crown can move to any (orthogonal or diagonal) adjacent empty cell. A Crown can also capture any enemy piece on any (orthogonal or diagonal) adjacent cell.
TURN - On each turn, each player moves one of his pieces. The High player moves first.
GOAL - A player wins by capturing an enemy Crown or by moving one of his own Crowns into the opponent's first row.