Pilastri

Pilastri is an abstract game for two players played on a square board with an even number of spaces. Each player controls one of the two colors of pieces, which start in a checkered pattern on the board. The goal of Pilastri is to outlast your opponent. A player without a legal move on their turn loses the game. Passing is not allowed. A game of Pilastri on a 6x6 board takes about 15-20 minutes to play. On your turn, take any one of your pieces from the top of a stack, leaving behind any pieces that it may have been on top of, and move it left, right, up, or down any distance, placing it on top of the first stack of pieces it encounters. The following must also be true for the move to be legal: The piece must end higher up than where it started. A piece that starts without anything beneath it may only be placed on top of a stack containing exactly one piece. —description from the designer