This is not a forced helpmate.
Helpmate in 2 moves
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Helpmates are, by definition, not forced. You want selfmates for those.
It's a nice puzzle! I like the symmetry of the two solutions w.r.t. which pieces move and which are pinned.
Nice but it has more solutions. 1. Qa6 also works.
Excellent helpmate pair, showing the Bristol theme on horizontal and diagonal lines.
And now something very different.
Again, black starts and helps white to give a mate in exactly two moves. You will find one solution along with the diagram but there is a second solution too. Can you find it?