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Try to clear as many lines as possible in a single move. This will give you more space to work with and make it easier to avoid filling up the entire game area. Focus on clearing the bottom rows of blocks first. This will help to prevent blocks from stacking up and making it difficult to move them around. Use the walls to your advantage. You can use the walls to bounce blocks around and create open spaces. Be patient and don't get frustrated. Tetris is a challenging game, but it's also a lot of fun.
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