| Achievement | How to unlock
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| Flip-Eighteen | Flip eighteen tiles in one move.
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| Flip-Six | Flip six tiles in one move.
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| Flip-Twelve | Flip twelve tiles in one move.
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| Flipping out | Flip out.
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| Go easy on 'em | Win 5 games in a row, online.
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| Harder than it sounds | Beat the AI on "Hard".
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| Insane (potential future World-Champion) | Beat the AI on "Hardest".
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| Medium | Beat the AI on "Medium".
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| Mess with the Best | Beat a player who has the 'Insane' achivement.
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| Mortal Conflict | Win your first game against a human opponent.
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| Nobody is Perfect | Lose an online game.
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| Off to a good start | Beat the AI on "Beginner".
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| On a Roll | Win 3 games in a row, online.
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| Perfect Balance | Tie a game.
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| Seriously? | Win 10 games in a row, online.
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| Taking it easy | Beat the AI on "Easy".
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| Tough Love | Win 15 games in a row, online.
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| What's Harder than Hard? | Beat the AI on "Harder".
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| White always wins. | Win as White at least 19.84 times.
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| World Wide Reversi | Win your first online match.
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