Red Scare chess: if two pawns remain deadlocked for four consecutive turns, both pawns are promoted to red queens which are controlled by neither player. After each player’s turn, one red queen moves. Red queens can:

• capture kings
• capture non-pawns
• convert an adjacent pawn to red queens

If a king is captured by a red piece, all their remaining pieces become red queens. the other player must eliminate all red pieces to win the game. It is possible for both players to lose.

that’s an actually interesting idea. here’s my take on this:

• When two pawns get gridlocked, rolld a d4.
• After that amount of rounds, they become red queens.
• At the end of each player’s turn, they have to select a red queen for moving.
• *Optional rule: the player instead rolls a d20 and chooses from the number which red queen will move.
• The selected red queen’s direction is determined by a d8. if the move is not possible, roll again.
• The red queen will move as far as possible in that direction, capturing the first piece in the path without capturing pawns.
• At the start of each player’s turn, any of their pawns that are adjacent to a red queen will be converted into a red queen.