Whenever one of your pawns reaches the 6th row, it promotes to a queen, knight, rook, or bishop. You may only have one queen in play at a time.

At the start of your turn, you may have any number of your pawns "dig in," provided that none of these pawns have moved on your last two turns. These pawns cannot be captured, pushed, or pulled until the start of your next turn but may not capture on your next turn.

First appearance: 2nd Design Competition (2nd place finalist).
Creator: John Fritzen
Tags: Promotion power