S: Queen, double Rooks, Pawns
A+: Bishop pair, >=4 connected pawns, Rook, unstoppable pass pawn, a battery
A: knight pair, bishop, knight, 3 connected pawns, knight , pass pawn
B: King in endgame,2 connected pawns
C: 1 Pawn, Rooks in the opening, f2&f7 pawn in the opening, too early developed queen, double pawns[depends]
D: isolated pawn(s) [very bad]
拉完了[Sh*t af piece]:King in opening&middle game
Bonus : S tier for any piece x queen, A+ tier for any piece x bishop/any piece x Rook. A tier for any piece x Knight. A tier for any piece x Pawn. B tier for any piece x King
Special Tier: En passanted Pawn
Bonus "fk U rubbish" tier: King
Bonus "N word" tier: All Black pieces