Elo Elo Elo
Beat an opponent with an Elo rating more than 150 higher than yours
100 ✓ February 3rd, 2020
11.5% · Common
Queen Sacrifice
Sacrifice the Queen then go on to win the game
25 ✓ February 2nd, 2020
29.9% · Common
Family Fork
Using a Knight simultaneously attack the enemy King and Queen
25 ✓ August 15th, 2023
11.9% · Common
Elo Elo
Beat an opponent with an Elo rating more than 75 higher than yours
25 ✓ February 3rd, 2020
16.9% · Common
Absolute Pin
Pin a piece against your opponent's King
10 ✓ February 2nd, 2020
55.1% · Common
Doubled Pawn
Have two pawns of the same colour on the same file
10 ✓ February 2nd, 2020
61.7% · Common
O-O-O
Castle queenside
10 ✓ February 2nd, 2020
25.0% · Common
O-O
Castle kingside
10 ✓ February 2nd, 2020
36.2% · Common
Check
Put an opponent in check
10 ✓ February 2nd, 2020
61.1% · Common
Checkmate
Win a game
10 ✓ February 2nd, 2020
43.0% · Common
Chop Wood
Make a capture or exchange
10 ✓ February 2nd, 2020
70.6% · Common
Promotion
Advance a pawn to the eighth rank
10 ✓ February 2nd, 2020
41.0% · Common
En Passant
Perform an en passant capture
10 ✓ February 2nd, 2020
17.2% · Common
Double Check
Deliver a check by two pieces at the same time
10 ✓ July 1st, 2021
15.1% · Common
Learner
Complete all the tutorials
10 ✓ February 2nd, 2020
6.7% · Rare
Spanish Bishop
Develop a White King Bishop to b5
10 ✓ February 2nd, 2020
32.0% · Common
Elo
Beat an opponent with an Elo rating higher than yours
10 ✓ February 3rd, 2020
24.5% · Common
Tournament Master
Win 20 tournaments
150 0.2% · Rare
Chess Champion
Beat the computer on Grandmaster difficulty
100 1.5% · Rare
Problem Solved
Complete all the chess challenges
100 0.4% · Rare
Stalemate
Draw a game by stalemate
50 27.1% · Common
🔐 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
Bobby Time
Play a game using the Fischer timer
25 7.4% · Rare
Tournament Pro
Win 5 tournaments
25 0.2% · Rare
Blind Pigs
Maneuver a pair of Rooks onto your opponent’s second rank
25 7.2% · 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
🔐 Underpromote
Promote a pawn to a Rook, Bishop, or Knight instead of a Queen
10 7.1% · Rare
Piece Collector
Capture 100 pieces
10 17.9% · Common
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
Octopus
Place a White Knight on e6
10 22.8% · Common
Tournament Amateur
Win a tournament
10 1.1% · Rare
Problem Solver
Complete 50% of the chess challenges
10 0.9% · Rare
Stranger Danger
Create a random online game
10 23.4% · Common
Friendly Fire
Issue an online challenge to a friend
10 13.6% · Common