Chess Ultra achievements

40.49%
O-O-O
Castle queenside
54.15%
O-O
Castle kingside
55.12%
Checkmate
Win a game
59.02%
Promotion
Advance a pawn to the eighth rank
83.41%
Doubled Pawn
Have two pawns of the same colour on the same file
84.39%
Check
Put an opponent in check
95.61%
Chop Wood
Make a capture or exchange