Achievement Unlocked Visibility Global Unlocks
Absolute Pin
Pin a piece against your opponent's King
66.9%
Alekhine’s Gun
Stack two Rooks one behind another in the same file with the Queen at the rear
1.4%
Back-rank Mate
Deliver checkmate by a Rook or Queen along a back rank, with the King's escape blocked by friendly pieces
4.0%
Blind Pigs
Manoeuvre a pair of Rooks onto your opponent’s second rank 		9.2%
Bobby Time
Play a game using the Fischer timer 		5.9%
Boden's Mate
Deliver checkmate by two crisscrossing Bishops, with the King's escape blocked by friendly pieces
0.5%
Check
Put an opponent in check 		74.5%
Checkmate
Win a game 		55.4%
Chess Champion
Beat the computer on Grandmaster difficulty 		1.6%
Chop Wood
Make a capture or exchange 		83.1%
Double Check
Deliver a check by two pieces at the same time 		20.3%
Doubled Pawn
Have two pawns of the same colour on the same file 		74.6%
Elo
Beat an opponent with an Elo rating higher than yours 		29.8%
Elo Elo
Beat an opponent with an Elo rating more than 75 higher than yours 		20.3%
Elo Elo Elo
Beat an opponent with an Elo rating more than 150 higher than yours 		13.1%
En Passant
Perform an en passant capture 		22.9%
Epaulette Mate
Deliver checkmate where the King is blocked on both sides by his own Rooks 		0.6%
Family Fork
Using a Knight simultaneously attack the enemy King and Queen 		13.8%
Fool's Mate
Win a game in three moves
0.6%
Friendly Fire
Issue an online challenge to a friend 		8.5%
Learner
Complete all the tutorials 		8.9%
Octopus
Place a White Knight on e6 		28.9%
O-O
Castle kingside 		46.1%
O-O-O
Castle queenside 		31.9%
Piece Collector
Capture 100 pieces 		22.4%
Problem Solved
Complete all the chess challenges 		0.5%
Problem Solver
Complete 50% of the chess challenges 		1.0%
Promotion
Advance a pawn to the eighth rank 		53.3%
Queen Sacrifice
Sacrifice the Queen then go on to win the game
40.8%
Scholar's Mate
Win a game in four moves
0.8%
Spanish Bishop
Develop a White King Bishop to b5 		40.0%
Stalemate
Draw a game by stalemate 		35.8%
Stranger Danger
Create a random online game 		19.9%
Tournament Amateur
Win a tournament 		0.9%
Tournament Champion
Win a 32 player tournament 		0.5%
Tournament Master
Win 20 tournaments 		0.5%
Tournament Pro
Win 5 tournaments 		0.5%
Underpromote
Promote a pawn to a Rook, Bishop, or Knight instead of a Queen
10.3%