- Doubled Pawn
Have two pawns of the same colour on the same file
27 April 2020 - 2 guides
- Chop Wood
Make a capture or exchange
27 April 2020 - 2 guides
- Alekhine’s Gun
Stack two Rooks one behind another in the same file with the Queen at the rear
Locked - 1 guide
- Back-rank Mate
Deliver checkmate by a Rook or Queen along a back rank, with the King's escape blocked by friendly p
Locked - 1 guide
- Underpromote
Promote a pawn to a Rook, Bishop, or Knight instead of a Queen
Locked - 2 guides
- En Passant
Perform an en passant capture
Locked - 2 guides
- Double Check
Deliver a check by two pieces at the same time
Locked - 1 guide
- Learner
Complete all the tutorials
- Piece Collector
Capture 100 pieces
Locked - 1 guide
- Epaulette Mate
Deliver checkmate where the King is blocked on both sides by his own Rooks
Locked - 1 guide
- Fool's Mate
Win a game in three moves
- Scholar's Mate
Win a game in four moves
- Octopus
Place a White Knight on e6
Locked - 1 guide
- Spanish Bishop
Develop a White King Bishop to b5
Locked - 1 guide
- Tournament Amateur
Win a tournament
Locked - 1 guide
- Problem Solver
Complete 50% of the chess challenges
- Elo
Beat an opponent with an Elo rating higher than yours
Locked - 1 guide
- Friendly Fire
Issue an online challenge to a friend
Locked - 1 guide
- Bobby Time
Play a game using the Fischer timer
Locked - 1 guide
- Family Fork
Using a Knight simultaneously attack the enemy King and Queen
Locked - 1 guide
- Elo Elo
Beat an opponent with an Elo rating more than 75 higher than yours
Locked - 1 guide
- Tournament Pro
Win 5 tournaments
Locked - 1 guide
- Boden's Mate
Deliver checkmate by two crisscrossing Bishops, with the King's escape blocked by friendly pieces
Locked - 1 guide
- Tournament Champion
Win a 32 player tournament
Locked - 1 guide
- Elo Elo Elo
Beat an opponent with an Elo rating more than 150 higher than yours
Locked - 1 guide
- Chess Champion
Beat the computer on Grandmaster difficulty
Locked - 1 guide
- Problem Solved
Complete all the chess challenges
Locked - 3 guides
- Tournament Master
Win 20 tournaments
Locked - 1 guide