Rebuilt around exact-grid board sprites. The board image, invisible click boxes, move dots, attack lines, HP bars, and pieces all use the same calibrated grid.
Move like chess. Attack by answering a science question. Correct answers boost damage. Wrong answers greatly weaken damage. Defeating a unit promotes the attacker.
Each unit moves like its chess counterpart. Pawns are infantry, rooks are tanks/golems, knights are helicopters/warg riders, bishops are snipers/casters, queens are missile batteries/dragons, and kings are commanders/overlords. Defeat the enemy king to win.