Here is the full list of all 27 Abalone achievements.
You have successfully completed all the Perfect Balance challenges.
You have successfully completed all the Timed challenges.
You have successfully completed all the Skills challenges.
You have won 25 games against a virtual opponent.
You have successfully completed all the Beginners challenges.
You have successfully completed all the Discovery challenges.
You have scored a first win against a virtual opponent.
You have finished Abalone's Challenge mode.
You have lost more than 50 games against a virtual opponent.
You have won 100 games against a virtual opponent.
You have won more than 250 games against a virtual opponent.
You have won a six-marble victory against an easy virtual opponent in under 70 moves.
You have won a six-marble victory against a medium-level virtual opponent in under 50 moves.
You have won a six-marble victory against an advanced virtual opponent in under 35 moves.
You have beaten a virtual opponent in more than 200 moves.
You have played more than 2,500 moves in total in Abalone.
You have played more than 5,000 moves in total in Abalone.
You have played more than 10,000 moves in total in Abalone.
You have scored your first victory in a network game.
You have dominated 50 opponents in the network game.
You dominated an opponent with a much better score.
You dominated an opponent who is a lot stronger than you.
You have played 100 network games.
You have achieved a personal score of 750.
You have achieved a personal score of 1000.
You have achieved a personal score of 2000.
You have achieved a personal score of 3000.