Composed some hours ago, nothing special for the experts. Because it is relatively easy give it a whirl without your Si friends!
White to move, mate in 4
lichess.org/editor/7k/7p/8/P5PP/5p2/RB6/3K4/6N1 w - -
So..im guessing push pawn to promote to Queen and deliver mate on g8?
Nice thing. Wasted few minutes to understand how to block the check on f1, what a shame)
1. h6 (a6 Kg7-f8 and no mate right now) 1...f3
3.Rf1 f:g whatever you want
This reminded me of another directmate you shared months ago, so the solution was easier to find. When I asked what the Sg1 was for it became obvious. Nice.
Thx guys! @DiesIrae13 @DthNcnt @Illion
So, I was not quite content with the outcome. What do you think, should Horsie g1 help?
lichess.org/editor/7k/4N2p/8/P6P/RP3p2/6P1/3K4/6N1 w - -
Mmm, I think the original version is better. The Sg1 has multiple paths to f7, and I don't think the duals outweigh the second line.
I like the second one better, but indeed you should get rid of the dual.
I think there are other deficiencies like the key 1.h6 imprisons the black king which is considered bad.
Condensing the material, 9 pieces:
lichess.org/editor/7k/4N2p/8/7P/5p2/6P1/3KR3/6N1 w - - 0 1
This is far more elegant. Maybe you can condense further and make better use of the white king. As a bystander it can also be useful to prevent some move.