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This looks like it could be a serious puzzle. What is the assignment?
To win!
It is called "Hourglass figure 7".
Tik tak...
DEAR MATES
White Rides
7 MOVE MATE
Sep 11, 2021
0
#5
Brilliant. I even love how 2.Rb4 is the only move. I wondered why 2.Rb3 was incorrect and took me a few minutes to see it. Bravo sir.
Thanks to you sir. for solving it! 
Sep 11, 2021
0
#7
You give me too much credit, I couldn't solve it but after I analyzed why the moves I did try were incorrect. Thanks for taking the time to post it.
Thank you again, and I applaud your honesty sir, which sometimes seems like an ancient lost art.
This is my first puzzle that I have shared with the wonderful community/family of chess.com. However it has being gathering dust for a while and, this puzzle being one of my absolute favorites, it kind of hurts seeing it being ignored for so long without someone actually taking a crack on it. Therefor I thought to relaunch it with that idea in mind. I hope you all bear over with me as it is all new to me and I am still trying to come with grip of how to do things in the forum.
Arisktotle wrote:
This looks like it could be a serious puzzle. What is the assignment?
To win!
It is called "Hourglass figure 7".
Tik tak...
Thats an interesting position, looks like blacks entire army got stuck on one side somehow.
Illbtu wrote:
Arisktotle wrote:
This looks like it could be a serious puzzle. What is the assignment?
To win!
It is called "Hourglass figure 7".
Tik tak...
The challenge is incorrect (dualed) under a win assignment because white has the alternative win of 7. Bd4. The assignment can only be "checkmate in 7 moves". Of course, it's even better to change the board setup such that black can draw after any attempt to deviate from the intended solution! Then the win assignment would be a valid choice.
Arisktotle wrote:
Illbtu wrote:
Arisktotle wrote:
This looks like it could be a serious puzzle. What is the assignment?
To win!
It is called "Hourglass figure 7".
Tik tak...
The challenge is incorrect (dualed) under a win assignment because white has the alternative win of 7. Bd4. The assignment can only be "checkmate in 7 moves". Of course, it's even better to change the board setup such that black can draw after any attempt to deviate from the intended solution! Then the win assignment would be a valid choice.
Thank you... what?! Uhhh... oh. aaaa ... ok
What?!!! 
Thanks to the always vigilant eye of my Master a catastrophe is corrected. I'll hope you all forgive my transgressions. Find the courage in heart to let it slide as a mere sin of omission than anything more serious.
Interestingly, on further analysis I found my suggestion to add a rook on a8 too optimistic. Because Rf5 is en prise the extra rook appears to unbalance the material equation. White can probably win traditionally by starting with 1. Qxf5. Unless this can be fixed it's probably best to return to the original diagram with the workable assignment "checkmate in 7 moves"!