H#2.5-3: A thematic white piece initially guards a square X. It makes two consecutive moves and, after the second move, again guards X while additionally guarding one or more new squares. The black King remains on its initial square throughout the solution.
The theme can be realized in three forms:
⧖ This is the theme of the 1th Azemmour TT (Batumi, 2013).
Onkoud, Abdelaziz
The Problemist, 2011
1...Bb4
2.Bxc5
Ba3
3.Rd4
Rxc5#
1...Sb3
2.Rd3
Sc1
3.Bd4
Bxd3#
Semenenko, Oleksandr
Nefiodov, Vladislav
Azemmour TT-1, Batumi, 2013
1st Prize
1...Bb4
2.Rxc6
Bc3
3.Rc4
Kxf6#
1...Sc3
2.Ra4
Sb1
3.Rc4
Kxf7#
1...Se3
2.Qe6
Sf1
3.Qc4
Kxh5#