Check mate with a dropped piece (Crazyhouse)
Win against 10 different opponents in Game Center
Check mate in less than 10 moves
Put opponent’s King in check
Refuse opponent’s request to take back a move
Castle to both sides of the board
Win a game in Game Center
Check mate while being down a queen or more
Win a game of suicide or losers in less than 20 moves
Win against computer (1 second per move or more)
Accept opponent’s request to take back a move
Refuse opponent’s request for a draw
Move a pawn 2 steps
Capture at least 5 of the opponent’s pawns
Capture both knights
Promote a pawn to something other than a queen
Promote a pawn to a queen
Capture a pawn en passant
Capture all of the opponent’s pieces