Chess Ultra achievements

40.29%
O-O-O
Castle queenside
53.88%
O-O
Castle kingside
54.85%
Checkmate
Win a game
58.74%
Promotion
Advance a pawn to the eighth rank
83.01%
Doubled Pawn
Have two pawns of the same colour on the same file
84.47%
Check
Put an opponent in check
95.63%
Chop Wood
Make a capture or exchange