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Instructions:

1. Press "Start New Game" to draw 4 cards to start.

2. Click the card pile to draw a new card.

3. Click the card to select it and then select a card at the top.

4. If the card is within the Difficulty Range (starts at 4) and alternating color (red/black) it will be successful.

5. If the card is not within the Difficulty Range or not alternating color, it will be unsuccessful.

6. Every time you are successful, the Difficulty Range goes down by 1.

7. To complete a pile, make 4 successful checks or an exact match.

8. Your goal is to complete as many piles as possible and end with as few cards remaining as possible.