Lyde: Lower left orientation: In the solution, instead of A4, the attacker can also make the C1 exchange first. Also, instead of E5 in the correct solution, the attacker can first play C1 (or C3)
posetcay: E5 at C1 or C3 doesn't work, but I added C1 as an alternative to A4.
E5 at C1 or C3 doesn't work, but I added C1 as an alternative to A4.