chess online

chess online
Chess related: Forced mate?
« Back to forum
FromMessage
ecob
08-Feb-09, 07:17

Forced mate?
So I was playing a game against my computer, and I got to this position here:

smg.photobucket.com

I couldn't find Mate, so I did 25.Qh7, Kf8 26. Qh8, Ke7 27. Rh7, Rf7 28. R*Rf7+, K*Rf7 29. Q*Qd8

is it possible to find mate here? White to move.
baronderkilt
08-Feb-09, 14:31

ecob ...
Today when I tried to look at it all I got was Action Failed. I don't know if that just applies to me, or to me just now today, or to everyone.
ganstaman
08-Feb-09, 22:48

Yeah, the link is weird. The url reads at one point without quotes: "?action=view" followed by a symbol of some sort followed by "t=Chessmotha"... (don't want myself to get banned from the forum). Not exactly sure what that symbol should be. When I changed it to a & it wanted me to log-in.
paranoidyoshi
10-Feb-09, 12:29

Is this it?
smg.photobucket.com

A forced mate isn't immediately apparent here. Then again, I'm just a patzer. Heinzkat, where are you when we need you most?  
baronderkilt
10-Feb-09, 14:10

huh?
"I couldn't find Mate, so I did 25.Qh7, Kf8 26. Qh8, Ke7 27. Rh7, Rf7 28. R*Rf7+, K*Rf7 29. Q*Qd8"

That's like saying "I Couldn't find Mate, so I mated it" ! Not a bad choice to have  )
Congrats by the way, on so humbling your mechanical monster~! I suspect that the URL for the photo perhaps contains its "Name"? I hope so, for then I think we feel the same way about them. (When we played Chess in the back of the horse cart, we didn't need Chess computers. Besides there was no plug in  

After the Queen comes off in the line you played, Blacks pieces fall like popcorn at the Cineplex. Tho not Forced in the sense that every move of black is dictated, forced in the sense that there is nothing BL can do to stop it vs correct moves ... so its just a matter of Mate In What. And working out a Tree Analysis would solve for that. (If you need to decimate the Q-side first, well some things you just gotta do.)

If you are asking if there may be a Shorter way to Mate ... something Bronstein-like maybe. I'd take a look at the fact that you have dominated the h-file for at least two moves for him to contest it directly, by getting a supported Q or Rook to it, and by then you could have tripled there yourself. Do you have time for a quiet move to bring in a piece or two? (Unfortunately this doesn't work well immediately from the pre-Q+ position because after his Indirect contesting of the h-file with Qg8, it seems we don't win a Queen and that is...well use a favorite expression there.
So how about if you take a check at Qh6+ or Qh7+ first and force his King to the back rank to prevent Qg8 as well as connection of the Q to a R (since the King then blocks that) ... then can you add a piece to the fray? Can he save the Queen then while avoiding mate?

That's how I'd approach it. A sort of carpentry of Questions to solve, build an Analysis Tree ala Kotov ("Think Like a GM". Besides being Olympiad boss for Bronstein And Tal, he has practiced what he preaches there as well, in competition.) Once upon a time I'd spend a fun afternoon looking at these things, honing analytical skills, and feeling gratified if something is there that exceeds the diabolical box's horizon. But I leave that joy to you or someone who will see it quickly! }8-)
Sorry so wordy, still recovering from a bad case of superfluousness ...
baronderkilt
10-Feb-09, 14:40

Forgot to mention ...
for anyone still here who would wonder. After the Queen win sequence WT threatens 30.Rh1 , looks the "natural". (Thats what brings to mind ideas about What If it could be tripled first or after a check.) Didn't really look at what piece(s) to take if BL tried Bd7 or such after the game line.