Thai chess, close cousin of the game that became international chess. Kings, Rooks and Knights move as you know them; the Queen and the Bishop (the “General” and “Nobleman”) step only a single square, and pawns promote on the sixth rank.
Makruk pieces are short-ranged, so the Rook and Knight are proportionally much stronger — develop and use them. The Met and Khon crawl one step at a time, so advance them behind pawns rather than into the open, and push a pawn to the sixth rank to earn a second Met.