4

How many times in a game can "the same pawn move" be made? By "the same pawn move", I mean, a move made by a pawn that would be notated the same way.

For instance, after 1.e4 e5 2.d4 exd5 3.e5, black and white have each played e5 once: so twice so far.

How many times can a single pawn move be played?

[the second part of this question has been split out here]

0
10

Due to the geometry of pawns moves, 8 seems to be the maximum for singular pawn moves.

Here is an example game for "e5."

[FEN ""]

1. e4 Nc6 2. e5 Nb8 3. e6 dxe6 4. d3 e5 5. Nc3 e4 6. dxe4 Nc6 7. e5 Nb8 8. e6 fxe6 9. Nb1 e5 10. f3 e4 11. fxe4 e5 12. Nf3 Nc6 13. Nxe5 Nb8 14. Nf3 Nc6 15. e5 Qd3 16. cxd3 Bf5 17. e6 Be4 18. dxe4 Nd4 19. e5 Nxf3+ 20. gxf3 Nf6 21. e7 Ne4 22. fxe4 Rg8 23. e6 Rh8 24. e5 

This is another one for "dxe5."

[FEN ""]

1. Nf3 d6 2. Ne5 dxe5 3. d4 Nc6 4. dxe5 Nf6 5. Qd6 cxd6 6. e3 Nd4 7. exd4 dxe5 8. dxe5 Qd3 9. Be3 Bd7 10. Bc5 Rc8 11. Bd6 exd6 12. cxd3 dxe5 13. d4 Rc3 14. dxe5 Bc5 15. bxc3 Bd4 16. cxd4 Ng4 17. e6 Ne5 18. dxe5 O-O 19. e7 Rc8 20. e6 Rc3 21. Na3 Re3+ 22. fxe3 b5 23. Kf2 b4 24. Kf3 b3 25. Kf2 b2 26. Kf3 b1=Q 27. Kf2 Qb4 28. Kf3 Qd4 29. exd4 f5 30. Bd3 f4 31. Ke2 f3+ 32. Ke3 f2 33. Kf3 f1=Q+ 34. Ke3 Qf5 35. Ke2 Qe5+ 36. dxe5
5

If you just ask for white moves, then of course queening all pawns on e8 is impossible since you need 16 captures. 7 (12 captures) is trivial. Including Black, I assume that the maximum is bringing five white pawns to e4 and three black to e6 (6 white, 2 black captures, even more trivial), and the answer is thus 8x "e5". (This is actually "half an answer", I make way for an additional answer with a strict proof and a proof game.

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