Level 4 - 1st task

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K+R+pawn vs K+R: you are white: get a queen or win the black rook in less than 20 moves and 2 minutes.

Level 4 - 2nd task - Ruy Lopez

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Black plays: show your plan for both sides

Level 4 - 3rd task - Sicilian Defense

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White plays: show your plan for both sides

Level 4 - 4th task - Réti

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Show your plan for white. Talk about your pawn structure. Plan could be: Rb1, b4, a4, b5. Or e3, b3, Bb2. Or, perhaps, Bg5 to take black knight on f6 to improve the white knight on c3. Etc.

Level 4 - 5th task - Queens Gambit (Accepted or Declined)

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Black plays: show your plan for both sides

Level 4 - 6th task: help teach a member the Level 2 requirements.