And this kills it all:

Yes,here the things are not clear :

About the puzzle #117, Icy 001 you are probably right 

 

 

 

 

 

White to play and win

I have just spent half an hour doing this!!!!

XD Oh my.

As Icy 001 showed, #117  leads up only to a draw.

#269 is an attempt at improvement of #117 . I think Elona recognised the situation!

 

I solved this position on tactics trainer recently.

 

 

 

 

 

 

 

I don't remember players or (more likely) author of this study. But this is in chess.com database !

First move is Kf5! Qf8 etc.

Yes, black has more checks, instead of taking the rook:

 

Well since no-one has answered puzzle #247, I'll post my solution:

 

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lol pawn mate :) good puzzle

This is from the movie "Searching for Bobby Fischer" and is really nice.

Why does the king need to move before the pawns queen? Consider:

I quote #272 - I must say nearly all of the puzzles or positions in this topic are not mine.I have some books with puzzles and when i take from there i post the name of the author. But i have also a notebook where i have written interesting positions and puzzles i have met through the years and unfortunately i didn't record the names of the authors.I apologize for this.Some of the positions i try to complicate,but the basic idea is not mine.

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Here is a puzzle that is mine,but is not very hard :

 

 

 

 

 

Mate in 2 moves

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Thanks for the explanation.

 

 

 

Here is what Smiley has in mind -find the best continuation for White.

And may be a second question:

if you can add a black pawn - where to put it ?

nice

Yes, the move 3.Qe3 !!  is a kind of (quiet) chess- aerobatics .Thanks to Smiley for posting this puzzle