Elo Elo Elo
Beat an opponent with an Elo rating more than 150 higher than yours
100 ✓ June 28th, 2017
11.5% · Common
Chess Champion
Beat the computer on Grandmaster difficulty
100 ✓ June 28th, 2017
1.5% · Rare
Problem Solved
Complete all the chess challenges
100 ✓ June 28th, 2017
0.4% · Rare
Stalemate
Draw a game by stalemate
50 ✓ June 28th, 2017
27.1% · Common
Bobby Time
Play a game using the Fischer timer
25 ✓ June 28th, 2017
7.4% · Rare
Queen Sacrifice
Sacrifice the Queen then go on to win the game
25 ✓ June 28th, 2017
29.9% · Common
Family Fork
Using a Knight simultaneously attack the enemy King and Queen
25 ✓ June 28th, 2017
11.9% · Common
Elo Elo
Beat an opponent with an Elo rating more than 75 higher than yours
25 ✓ June 28th, 2017
16.9% · Common
Blind Pigs
Maneuver a pair of Rooks onto your opponent’s second rank
25 ✓ June 28th, 2017
7.2% · Rare
Absolute Pin
Pin a piece against your opponent's King
10 ✓ June 28th, 2017
55.1% · Common
Doubled Pawn
Have two pawns of the same colour on the same file
10 ✓ June 28th, 2017
61.7% · Common
O-O-O
Castle queenside
10 ✓ June 28th, 2017
25.0% · Common
O-O
Castle kingside
10 ✓ June 28th, 2017
36.2% · Common
Check
Put an opponent in check
10 ✓ June 28th, 2017
61.1% · Common
Checkmate
Win a game
10 ✓ June 28th, 2017
43.0% · Common
Chop Wood
Make a capture or exchange
10 ✓ June 28th, 2017
70.6% · Common
Promotion
Advance a pawn to the eighth rank
10 ✓ June 28th, 2017
41.0% · Common
Underpromote
Promote a pawn to a Rook, Bishop, or Knight instead of a Queen
10 ✓ June 28th, 2017
7.1% · Rare
En Passant
Perform an en passant capture
10 ✓ June 28th, 2017
17.2% · Common
Double Check
Deliver a check by two pieces at the same time
10 ✓ June 28th, 2017
15.1% · Common
Learner
Complete all the tutorials
10 ✓ June 28th, 2017
6.7% · Rare
Piece Collector
Capture 100 pieces
10 ✓ June 28th, 2017
17.9% · Common
Octopus
Place a White Knight on e6
10 ✓ June 28th, 2017
22.8% · Common
Spanish Bishop
Develop a White King Bishop to b5
10 ✓ June 28th, 2017
32.0% · Common
Problem Solver
Complete 50% of the chess challenges
10 ✓ June 28th, 2017
0.9% · Rare
Elo
Beat an opponent with an Elo rating higher than yours
10 ✓ June 28th, 2017
24.5% · Common
Stranger Danger
Create a random online game
10 ✓ June 28th, 2017
23.4% · Common
Friendly Fire
Issue an online challenge to a friend
10 ✓ June 28th, 2017
13.6% · Common
Tournament Master
Win 20 tournaments
150 0.2% · Rare
🔐 Boden's Mate
Deliver checkmate by two crisscrossing Bishops, with the King's escape blocked by friendly pieces
50 0.3% · Rare
Tournament Champion
Win a 32 player tournament
50 0.2% · Rare
Tournament Pro
Win 5 tournaments
25 0.2% · Rare
🔐 Alekhine’s Gun
Stack two Rooks one behind another in the same file with the Queen at the rear
10 1.3% · Rare
🔐 Back-rank Mate
Deliver checkmate by a Rook or Queen along a back rank, with the King's escape blocked by friendly p
10 3.3% · Rare
Epaulette Mate
Deliver checkmate where the King is blocked on both sides by his own Rooks
10 0.4% · Rare
🔐 Fool's Mate
Win a game in three moves
10 0.5% · Rare
🔐 Scholar's Mate
Win a game in four moves
10 0.8% · Rare
Tournament Amateur
Win a tournament
10 1.1% · Rare