One variation could be challenging if two files, for example "d" and "e" files, replaced after each 5 movesfor example, consider this position after move 5.c3 Bc5:
now we replace d file with e file:
Ooh evans gambit i dont need to see the rest its great
Bump
One variation could be challenging if two files, for example "d" and "e" files, replaced after each 5 moves
for example, consider this position after move 5.c3 Bc5:
now we replace d file with e file: