Chess Ultra
Joiny's Progress
Absolute Pin
Unlocked 30 May 2020 at 1:15 AM
Alekhine’s Gun
Back-rank Mate
Doubled Pawn
Have two pawns of the same colour on the same file
Unlocked 30 May 2020 at 1:19 AM
O-O-O
Castle queenside
Unlocked 30 May 2020 at 3:36 AM
O-O
Castle kingside
Unlocked 30 May 2020 at 1:20 AM
Check
Put an opponent in check
Unlocked 30 May 2020 at 1:13 AM
Checkmate
Win a game
Unlocked 30 May 2020 at 1:17 AM
Chop Wood
Make a capture or exchange
Unlocked 30 May 2020 at 1:13 AM
Promotion
Advance a pawn to the eighth rank
Unlocked 30 May 2020 at 2:04 AM
Underpromote
En Passant
Perform an en passant capture
Double Check
Deliver a check by two pieces at the same time
Learner
Complete all the tutorials
Piece Collector
Capture 100 pieces
Unlocked 30 May 2020 at 2:58 AM
Epaulette Mate
Deliver checkmate where the King is blocked on both sides by his own Rooks
Fool's Mate
Scholar's Mate
Octopus
Place a White Knight on e6
Unlocked 30 May 2020 at 1:21 AM
Spanish Bishop
Develop a White King Bishop to b5
Unlocked 30 May 2020 at 1:23 AM
Tournament Amateur
Win a tournament
Problem Solver
Complete 50% of the chess challenges
Elo
Beat an opponent with an Elo rating higher than yours
Unlocked 30 May 2020 at 1:34 AM
Stranger Danger
Create a random online game
Friendly Fire
Issue an online challenge to a friend
Bobby Time
Play a game using the Fischer timer
Queen Sacrifice
Unlocked 30 May 2020 at 1:34 AM
Family Fork
Using a Knight simultaneously attack the enemy King and Queen
Unlocked 30 May 2020 at 1:21 AM
Elo Elo
Beat an opponent with an Elo rating more than 75 higher than yours
Unlocked 30 May 2020 at 1:34 AM
Tournament Pro
Win 5 tournaments
Blind Pigs
Manoeuvre a pair of Rooks onto your opponent’s second rank
Stalemate
Draw a game by stalemate
Boden's Mate
Tournament Champion
Win a 32 player tournament
Elo Elo Elo
Beat an opponent with an Elo rating more than 150 higher than yours
Unlocked 30 May 2020 at 2:05 AM
Chess Champion
Beat the computer on Grandmaster difficulty
Problem Solved
Complete all the chess challenges
Tournament Master
Win 20 tournaments