Some selfmates I've made

9 selfmates [+2 new: my selfmate corner] I've created (most easy, I think, and progressively improving I hope). Probably the ideas are not new, but I didn't copy them. I doublechecked them through olive-popeye software. If someone uses this program please let me know for a question.
I hope you'll enjoy them...

4 really simple... first draft for start

#1 selfmate in 2

#2 selfmate in 3

#3 selfmate in 4

#4 selfmate in 3

2 more beautiful with key moves

#5 selfmate in 3

#6 selfmate in 4

1 overloaded

#7 selfmate in 3

1 big line but maybe easy as has zero variations

#8 selfmate in 7

my first jewel 
#9 selfmate in 5 [it's in 6 but this line is better I think]

Very clever puzzles

Nice works. Since you seem pretty experienced, one suggestion is to aim for more subtle key-moves that are non-checking, especially in the shorter problems.

I also use Popeye though with a different interface program called APwin, rather than Olive.  

Ty tzima and @Rocky64 for your kind words.

@Rocky64 Of course you are right about key moves and I got it in mind. They are my very first attempts. I tried for key moves on the last half of them although I don't know if they are subtle enough. I hope I will get better

I had some problems with n.7 cause of the many pieces. Always something wasn't proper. So I searched for software online. I found olive with popeye that is proved trustworthy. But I wondered if there is some function in there, to show you somehow mistakes. Meaning something like "this is not at all a selfmate cause of this line..." And again thank you.

For your second problem, after 1. Bxb2+ axb2 2. Nb3+ Rxb3 3. axb3+ isn't 3...Ba3 just not mate? Maybe move the Bd6 back to f4 or further.

Yes, Popeye has a huge number of Options and you should find these useful: (1) Try - you may know this one already - it will display any white move that is defeated by a unique black move. So if your intended key is stopped by one black move only, the refutation will be shown. (2) Defence N - similar to 'Try' but you specify the N number of defences that would defeat a white move. So if you indicate 'Defence 3' and your intended key is stopped by 2 or 3 black moves, these refutations are all shown. 

Not only this, but had two black darksq. bishops... and I was so sure about it. My very first thats why. I edit it and replaced the d6 B with a N at d7. Thanx.

@Rocky64 thank you. Defence is possibly what I was looking for... shows me some "but..." lines, so I think I'll know if I'm close or not. I hope I'll come back with better ones soon.

I hope that these 2 new are a little more tricky ?!

#10 selfmate in 4

#11 selfmate in 6

Good play by black, but white missed 1.Rf5# on puzzle 8.

Just kidding, your puzzles are incredible! You're talented for sure. How do you created these puzzles, do you start with a certain idea then find a way to implement it in a concrete position?

Somehow like this I think...

Just kidding

Thank you for your really kind words!

I've made too few problems to know or even think about "my composing process". I'm just having fun. All I can tell is that I felt the need of an actual small and handy chessboard (idea copied from pics in solving contests). It's far better and quicker for the first setup and then check it and transform it on pc. I was about to buy one but I rediscovered the one you see above in my attic, from my childhood years.

#12 selfmate in 4 (the above gif position, I hope you'll enjoy it)

Cool one! By the way, the picture in the first post, from what anime is it?

Didn't know it. Found it through google pics. It's from "Yuki Yuna is a Hero" 

#13 selfmate in 6 [a good one I think]

#13.1 selfmate in 3 [an early stage while making the above, more easy]

I don't understand... What is a selfmate?

Selfmate is a chess problem, where white play first and try to oblige black to checkmate white, while black trying to avoid it. All chess rules are applied.

If you want check it in wiki.

A simple example that I think will help you

introuble2

introuble2 I found some of your work humbling. More than 50 years ago I first contemplated the idea of forcing the chess opponent to win. I began the exploration of this concept by giving white the king and the king pawn in their original positions and giving black the full compliment in its original deployment. The problem became white to move, black to selfmate within 25. While this evolved into a lucrative hustle the ultimate challenge became forcing an opponent of comparable skills to win in a regular game. Admittedly I always insisted on WHITE unless the stakes were harmless *****

'humbling'? I'm glad that you got interested in these of my old tries of exploring chess possibilities.

As you can see they're old [of 2018] and probably of primitive level. But as far as I can remember, I had fun.

Perhaps using less pieces could make the ideas seem/feel more neat

White to move and selfmate within 1,352

This position evolved from legitimate play in which black converted all 8 pawns to rooks