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Composition Challenge!

Hello chess friends. Below is a list of 16 chess-related tasks. My challenge to anyone who accepts is to compose a series of games that fulfills the requirements of every single task in as few moves as possible.

Pawn Tasks:
1. Create a set of doubled pawns for White
2. Underpromote a pawn
3. Perform an en passant capture with White

Positional Tasks:
4. Castle kingside
5. Castle queenside
6. Develop the f1 Bishop to b5
7. Move a white knight to e6
8. Have two White rooks on the 7th rank at the same time
9. Create an Alekhine's Gun with the queen on the 1st rank of a file and two rooks on the 2nd and 3rd ranks (en.wikipedia.org/wiki/Alekhine's_gun)

Tactical Tasks:
10. Pin a piece or pawn to Black’s king
11. Sacrifice your queen for less material (does not have to be a sound sacrifice, but the sacrifice must be accepted, not declined)
12. Perform a double check
13. Fork Black’s king and queen with a knight

Checkmate Tasks:
14. Deliver a back-rank mate with three black pawns in front of Black’s king.
15. Deliver an Epaulette mate (en.wikipedia.org/wiki/Checkmate_pattern#Epaulette_mate)
16. Deliver a Boden’s mate (en.wikipedia.org/wiki/Boden%27s_Mate)

Rules:
1. You get to choose the moves for both white and black. The moves don't have to be good moves. Your only goal is to complete all the tasks in as few moves as possible.
2. ALL tasks must be completed with White.
3. Every half-move adds 1 point to your score.
4. Every new game adds 2 points to your score.
5. You can complete the tasks in any order.
6. You are allowed to complete multiple tasks on the same move.
7. You are allowed to abort an unfinished game and keep all the tasks you fulfilled in that game, just know that starting a new game will add 2 points to your score.
8. You are allowed to create as many games as you'd like. Obviously the minimum number of games is three since there are three different checkmate tasks.
9. Try to get as low as a score as possible! Post your series of games below so I can check them out!

This challenge took me about an hour to complete to a degree I was happy with. My final score is 79 (2 + 27 + 2 + 37 + 2 + 9), and you can look at the games here: lichess.org/study/NZp7GNdw ; See if you can beat my score! Last time I did a composition challenge* I had a few titled players smash my score out of the water, so I'm eager to see how low we can go.

*The challenge was to create a game ending in b8=N# in as few moves as possible. I was able to do it in 8.5 moves, which I thought was the lowest possible, but an NM found a solution in 7.5 moves and an IM found a solution in 6.5 moves!

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