No. 36
2+4. Retract one white move, and h#1.5 (2 solutions)
2+15. Last 3 moves? (Anti-circe)
13+13. #1
9+13. Add the two kings for an Illegal cluster
12+14. Mate?
6+0. Add a white king, queen, four rooks, and four pawns, and a black king, rook, and two knights for an Illegal cluster