This is a solo variant of chess that I made (with the help of AI) where you play as white and have black reserve troops, but you face an endless army of gray pieces. They appear wave by wave but here’s how they move: Pawn: move 1 square forward and capture if they can. Knight: Move in an L shape toward the end and capture if they can. Bishop: move 2 squares diagonally toward the end, also captures compulsively. Rook: Boss on wave 5, moves 2 squares straight toward the end, captures compulsively. Queen: Boss on wave 10: Moves 3 squares toward the end shifting between diagonally and straight. King: Boss on wave 15: Moves 1 square straight to the end, summons a rook every time it moves.