Quick answer: “Pháo (Tu Sac Piece)” means A principal Tứ Sắc piece type used in same-rank grouping logic. Board tracking of Pháo helps infer opponents' hidden structure.
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Pháo (Tu Sac Piece)
A principal Tứ Sắc piece type used in same-rank grouping logic. Board tracking of Pháo helps infer opponents' hidden structure.