Here is the full list of all 23 Chess Gambit trophies - there are 6 bronze, 8 silver, 8 gold and 1 platinum.
Congratulations, you have achieved all the trophies! You are a Grandmaster!
AI defeated at Level 1
AI defeated at Level 2
AI defeated at level 3
AI defeated at level 4
AI defeated at level 5
AI defeated at level 6
AI defeated at level 7
AI defeated at Level 8
AI defeated at level 9
IA defeated 2 times at level 1
IA defeated 2 times at level 2
IA defeated 2 times at level 3
IA defeated 2 times at level 4
IA defeated 2 times at level 5
IA defeated 2 times at level 6
IA defeated 2 times at level 7
IA defeated 2 times at level 8
IA defeated 2 times at level 9
IA defeated 3 times at level 4
IA defeated 3 times at level 5
IA defeated 3 times at level 7
AI defeated 3 times at level 8