Chess Ultra

Chop Wood

Very common78.1%

Make a capture or exchange

Doubled Pawn

Common68.1%

Have two pawns of the same colour on the same file

Check

Common68.0%

Put an opponent in check

Absolute Pin

Common60.0%

Pin a piece against your opponent's King

Checkmate

Common47.8%

Win a game

Promotion

Common45.7%

Advance a pawn to the eighth rank

O-O

Common40.6%

Castle kingside

Spanish Bishop

Uncommon34.0%

Develop a White King Bishop to b5

Queen Sacrifice

Uncommon32.3%

Sacrifice the Queen then go on to win the game

Stalemate

Uncommon29.0%

Draw a game by stalemate

O-O-O

Uncommon28.5%

Castle queenside

Stranger Danger

Uncommon26.2%

Create a random online game

Elo

Uncommon25.1%

Beat an opponent with an Elo rating higher than yours

Octopus

Uncommon24.5%

Place a White Knight on e6

En Passant

Uncommon20.6%

Perform an en passant capture

Piece Collector

Uncommon18.3%

Capture 100 pieces

Elo Elo

Uncommon17.0%

Beat an opponent with an Elo rating more than 75 higher than yours

Double Check

Uncommon16.3%

Deliver a check by two pieces at the same time

Friendly Fire

Uncommon14.0%

Issue an online challenge to a friend

Family Fork

Uncommon12.6%

Using a Knight simultaneously attack the enemy King and Queen

Elo Elo Elo

Uncommon11.2%

Beat an opponent with an Elo rating more than 150 higher than yours

Learner

Rare8.8%

Complete all the tutorials

Bobby Time

Rare8.2%

Play a game using the Fischer timer

Blind Pigs

Rare7.4%

Manoeuvre a pair of Rooks onto your opponent’s second rank

Underpromote

Rare7.4%

Promote a pawn to a Rook, Bishop, or Knight instead of a Queen

Back-rank Mate

Very rare3.2%

Deliver checkmate by a Rook or Queen along a back rank, with the King's escape blocked by friendly p

Tournament Amateur

Very rare1.8%

Win a tournament

Chess Champion

Very rare1.7%

Beat the computer on Grandmaster difficulty

Alekhine’s Gun

Very rare1.3%

Stack two Rooks one behind another in the same file with the Queen at the rear

Problem Solver

Very rare1.1%

Complete 50% of the chess challenges

Scholar's Mate

Ultra rare0.9%

Win a game in four moves

Fool's Mate

Ultra rare0.6%

Win a game in three moves

Epaulette Mate

Ultra rare0.5%

Deliver checkmate where the King is blocked on both sides by his own Rooks

Problem Solved

Ultra rare0.5%

Complete all the chess challenges

Boden's Mate

Ultra rare0.4%

Deliver checkmate by two crisscrossing Bishops, with the King's escape blocked by friendly pieces

Tournament Pro

Ultra rare0.3%

Win 5 tournaments

Tournament Champion

Ultra rare0.3%

Win a 32 player tournament

Tournament Master

Ultra rare0.3%

Win 20 tournaments