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Attempt 3

Attempt 4 (#1)

I think I finally got it:

1. Kd4 Qc6 2. Ke3 Qc3 3. dxc3 a5 4. Kd4 a4 5. Ke3 a3 6. Kd4 a2 7. Ke3 a1=Q 8. Kd4 Qa3 9. bxa3 Rc8 10. Ke3 Rc4 11. bxc4 Bd5 12. Kd4 Be4 13. dxe4 g5 14. Ke3 g4 15. Kd4 g3 16. Ke3 g2 17. Kd4 g1=Q 18. Ke3 Qe1+ 19. Kd4 Qe3+ 20. fxe3 h5 21. Kd3 h4 22. Kd4 h3 23. Kd3 h2 24. Kd4 h1=Q 25. Kd3 Rg8 26. Kd4 Rg4 27. fxg4 Kd7 28. Kd3 Kd6 29. Kd4 Qd1#

I guess here the foxhole is the columns of white pawns that were meant to protect the king, until one of black’s pieces came from behind and did a sneak attack. Also, I still think there’s a shorter solution that satisfies all the requirements, but for now this’ll do.

Attempt 3

OK, second try for #1:

Attempt 3

For #2, is this what you were looking for?

1. d4 Nh6 2. d5 c5 3. dxc6 Qc7 4. b4 Qf4 5. b5 a5 6. bxa6 Qxc1 7. f4 Qxb1 8. f5 e5 9. fxe6 Qxa1 10. h4 Qd4 11. h5 g5 12. hxg6 Qxg1 13. a4 Qxh1 14. a5 b5 15. axb6 Qxf1+ 16. Kd2 Qxd1+ 17. Kxd1 Ng8 18. c4 Kd8 19. c5 d5 20. cxd6 Ke8 21. e4 Kd8 22. e5 f5 23. exf6 Ke8 24. g4 Kd8 25. g5 h5 26. gxh6 Ke8 27. f7+ Kd8 28. c7# (Apronus link)

All the white pawns do en passants to capture the black pawns, which is the “additional move” that black doesn’t get to do, since black’s pawns never escape the 5th rank. I’m not sure how the foxhole/war theme fits this puzzle, however...

As for #1, I’m convinced that it’s too broad without additional restrictions, because

I found a shorter solution that ends the same as my previous attempt and the black king never gets into check:

1. f5 Kd7 2. f4 Qg6 3. fxg6 Bf7 4. gxf7 Kc6 5. f8=B Kb5 6. Bxg7 a5 7. Bxh8 Re8 8. f5 Ka6 9. f6 Kb5 10. f7 Ka6 11. fxe8=B h5 12. Bxh5 Kb5 13. Bd1 Ka6 14. Bd4 Kb5 15. Bc2 axb4#

and I’m pretty sure I can find at least two more “solutions” using the same theme

Attempt 2

OK, second try for #1: