Chess Ultra Achievements

  • Pin a piece against your opponent's King
    71.43%
  • Stack two Rooks one behind another in the same file with the Queen at the rear
    4.02%
  • Deliver checkmate by a Rook or Queen along a back rank, with the King's escape blocked by friendly pieces
    4.83%
  • Have two pawns of the same colour on the same file
    85.92%
  • Castle queenside
    43.06%
  • O-O
    Castle kingside
    52.11%
  • Put an opponent in check
    88.13%
  • Win a game
    60.36%
  • Make a capture or exchange
    98.19%
  • Advance a pawn to the eighth rank
    65.19%
  • Promote a pawn to a Rook, Bishop, or Knight instead of a Queen
    17.30%
  • Perform an en passant capture
    36.22%
  • Deliver a check by two pieces at the same time
    20.72%
  • Complete all the tutorials
    25.15%
  • Capture 100 pieces
    23.14%
  • Deliver checkmate where the King is blocked on both sides by his own Rooks
    2.21%
  • Win a game in three moves
    2.21%
  • Win a game in four moves
    2.21%
  • Place a White Knight on e6
    33.00%
  • Develop a White King Bishop to b5
    39.84%
  • Win a tournament
    2.82%
  • Complete 50% of the chess challenges
    4.02%
  • Elo
    Beat an opponent with an Elo rating higher than yours
    29.38%
  • Create a random online game
    21.93%
  • Issue an online challenge to a friend
    10.26%
  • Play a game using the Fischer timer
    12.88%
  • Sacrifice the Queen then go on to win the game
    40.44%
  • Using a Knight simultaneously attack the enemy King and Queen
    16.50%
  • Beat an opponent with an Elo rating more than 75 higher than yours
    22.54%
  • Win 5 tournaments
    1.61%
  • Manoeuvre a pair of Rooks onto your opponent’s second rank
    10.66%
  • Draw a game by stalemate
    40.24%
  • Deliver checkmate by two crisscrossing Bishops, with the King's escape blocked by friendly pieces
    2.21%
  • Win a 32 player tournament
    1.21%
  • Beat an opponent with an Elo rating more than 150 higher than yours
    16.50%
  • Beat the computer on Grandmaster difficulty
    6.44%
  • Complete all the chess challenges
    2.62%
  • Win 20 tournaments
    1.01%