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Question: How Should We Use This Thread?

All solutions here ASAP

3 (25.0%)

Computer-aided Analysis & chat

3 (25.0%)

Finished solutions only

2 (16.7%)

Authors' solutions, ASAP

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Authors' solutions when ready

2 (16.7%)

Other (Pls explain)

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Total votes: 12

« Created by: Smyslov_Fan on: 08/16/09 at 10:51:37 »

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Serious Training Team Solutions to problems (Read 12702 times)

battleangel Ex Member	Re: Serious Training Team Solutions to problems Reply #32 - 12/19/09 at 21:01:42	Post Tools	Print Post
	yeah, that's right Girkassa wrote on 12/13/09 at 12:13:00: After 1...g5 2.fxg5 Rd5, White can play 3.b4 Rxe5 4.h4, when Black must be better, but material is equal, and creating enough winning chances looks hard. I think the intended solution is 1...Ra4. Both 2.Rc5 and 2.Rc7 are met by 2...Rb4 3.Rc2 Rb5, when White can't defend the a5 pawn. Interestingly, White's rook had to be chased away from b1!


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Girkassa Senior Member Offline I Love ChessPublishing! Posts: 433 Joined: 04/07/07	Re: Serious Training Team Solutions to problems Reply #31 - 12/13/09 at 12:13:00	Post Tools	Print Post
	After 1...g5 2.fxg5 Rd5, White can play 3.b4 Rxe5 4.h4, when Black must be better, but material is equal, and creating enough winning chances looks hard. I think the intended solution is 1...Ra4. Both 2.Rc5 and 2.Rc7 are met by 2...Rb4 3.Rc2 Rb5, when White can't defend the a5 pawn. Interestingly, White's rook had to be chased away from b1!


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Green YaBB Newbies Offline Tomorrow never comes Posts: 5 Joined: 12/10/09	Re: Serious Training Team Solutions to problems Reply #30 - 12/13/09 at 09:12:50	Post Tools	Print Post
	Answer to battleangel's position (posted on 11/30/09): 1.f4 g5 2.fxg5 Rd5 3.Rc7 Rb5 4.Rc2 Rxe5 Black picks up either the g5 or the a5 pawn. Is that correct?

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Smyslov_Fan God Member Correspondence fan Offline Progress depends on the unreasonable man. ~GBS Posts: 6902 Joined: 06/15/05	Re: Serious Training Team Solutions to problems Reply #29 - 10/11/09 at 18:34:44	Post Tools	Print Post
	To be honest I haven't made the time to study this position at all. I was kinda hoping others would take up the position this time. Maybe I'll find time on Monday; it's a holiday here in the US.


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Girkassa Senior Member Offline I Love ChessPublishing! Posts: 433 Joined: 04/07/07	Re: Serious Training Team Solutions to problems Reply #28 - 10/11/09 at 15:06:11	Post Tools	Print Post
	Any slightly more informed opinion coming up, Smyslov_Fan? 1...Rb2 is logical, but I doubt there is enough compensation after 2.Rxc4 and now 2...Rxc4 3.Qxc4+ Kh7 4.Qc3 or 2...Qd2 3.Rxc8+ Nxc8 4.Qe8+ Kh7 5.Rf1. Sure, Black has active pieces and decent drawing chances, but White can easily play for a win. I'm looking for something stronger.


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Smyslov_Fan God Member Correspondence fan Offline Progress depends on the unreasonable man. ~GBS Posts: 6902 Joined: 06/15/05	Re: Serious Training Team Solutions to problems Reply #27 - 10/03/09 at 15:08:49	Post Tools	Print Post
	Edited: Girkassa's position (10.02.09) Is up! My first impulse, seeing that the c-pawn is dead, is to play Rb2 intending Qd2. But that's a blitz response. I'll give my slightly more informed opinion later.


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Smyslov_Fan God Member Correspondence fan Offline Progress depends on the unreasonable man. ~GBS Posts: 6902 Joined: 06/15/05	Re: Serious Training Team Solutions to problems Reply #26 - 10/01/09 at 21:22:14	Post Tools	Print Post
	See, that's why I don't play 1.e4. There are so many junk lines. Still, I should have sen how 11.Bf7 works even late at night (3:30am local time).


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TN God Member Offline Posts: 3420 Joined: 11/07/08 Gender:	Re: Serious Training Team Solutions to problems Reply #25 - 10/01/09 at 20:43:15	Post Tools	Print Post
	Dink Heckler is correct: 1.e4 e5 2.Nf3 d6 3.d4 Nd7 4.Nc3 Ngf6 5.g4 Ng4 6.Rg1 Ngf6 7.Bc4 h6 8.Be3 c6 9.de5 de5 10.Qd3 Qc7? is the move order to reach the position in the game. It's an important trap to know if you play this line as White, although 10...b5 is the move which put me off this line.

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Dink Heckler God Member Offline Love-Forty Posts: 900 Joined: 02/01/07 Gender:	Re: Serious Training Team Solutions to problems Reply #24 - 10/01/09 at 14:37:10	Post Tools	Print Post
	Looks like a g4 Philidor to me...the Shirov line.

	'Am I any good at tactics?' 'Computer says No!'
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Smyslov_Fan God Member Correspondence fan Offline Progress depends on the unreasonable man. ~GBS Posts: 6902 Joined: 06/15/05	Re: Serious Training Team Solutions to problems Reply #23 - 10/01/09 at 13:34:01	Post Tools	Print Post
	Dink, You're right. I completely missed how strong 3.Nh4 is. So Bf7 wins. I wonder about two things: how could this position arise from a normal game and whether 0-0-0 also wins. Here's one possible solution to my first query: 1.e4 e5 2.Nc3 Nf6 3.d3 d5 4.Nf3?! de4?! 5.de4 Nd7?! 6.g4? Ng4? 7.Rg1? Ngf6 8.Bc4 h6 9.Be3 c6 10.Qd3 Qc7?


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Dink Heckler God Member Offline Love-Forty Posts: 900 Joined: 02/01/07 Gender:	Re: Serious Training Team Solutions to problems Reply #22 - 10/01/09 at 12:03:16	Post Tools	Print Post
	The problem is that this sort of problem (White to play and win, only one forcing candidate move) does give one a huge steer in the right direction....though of course, in this case, the solution doesn't just fall out, it does need to be analysed out, and is hence a worthy exercise.

	'Am I any good at tactics?' 'Computer says No!'
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Dink Heckler God Member Offline Love-Forty Posts: 900 Joined: 02/01/07 Gender:	Re: Serious Training Team Solutions to problems Reply #21 - 09/30/09 at 23:02:22	Post Tools	Print Post
	Bxf7 is by no means ridiculous...haven't analysed all lines exhaustively, but seems very strong....White can't immediately mobilise much force, but Black is terribly tied up...his possie looks like one of those sliding block puzzles. after 2. Qc4 Ke7, 3. Nh4 is strong.... after 2...Ke8, the lines look pretty clear too... I don't see a line that immediately wipes Black off the Board, but he can hardly move anything, and it looks like White can crank it up...I think this sac should be played on intuitive grounds (backed up by more analysis than I have provided...but I've satisfied myself)

	'Am I any good at tactics?' 'Computer says No!'
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Smyslov_Fan God Member Correspondence fan Offline Progress depends on the unreasonable man. ~GBS Posts: 6902 Joined: 06/15/05	Re: Serious Training Team Solutions to problems Reply #20 - 09/30/09 at 21:55:26	Post Tools	Print Post
	Edited: TN's Position, 9.30.09 Ok, My first instinct, after trying the ridiculous moves such as Bxf7, (AAFMF: always analyse forcing moves first), is 0-0-0. I'll have to look more closely tho, cos I don't see that as forcing a win.


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Girkassa Senior Member Offline I Love ChessPublishing! Posts: 433 Joined: 04/07/07	Re: Serious Training Team Solutions to problems Reply #19 - 09/05/09 at 09:30:34	Post Tools	Print Post
	Looks convincing enough, White should be winning after 3.Rb1 Bxe3 4.Qxe3. Still, I don't see any refutation of my 3.Rd1. I admit I forgot Black has 3...Bxe3 4.Rxd6 Qe1+, but still, the White king seems to escape the checks after 5.Kg2 Qxf2+ 6.Kh3 (e.g. 6...Qf1+ 7.Kh4 g5+ 8.Kxh5 Qh3+ 9.Kg6). Also, I'd like to see how you plan to defend against 1.Qxc6+ Rxc6 2.Bg5. The direct threat is 3.Rd1. 2...Bc5 is met by 3.Rc1 and 2...Bd4 by 3.Rd1, while 2...Bb8 3.Rb1, as I mentioned, looks strong I think.


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Smyslov_Fan God Member Correspondence fan Offline Progress depends on the unreasonable man. ~GBS Posts: 6902 Joined: 06/15/05	Re: Serious Training Team Solutions to problems Reply #18 - 09/04/09 at 19:53:00	Post Tools	Print Post
	Well, I seem to have single-handedly killed of this thread. Here's the solution to my position: I believe that White has a win only by keeping Qs and Rs on the board. White may be able to retain the pawn in a queenless endgame but he won't have any winning chances. I played: 1.Qb3 Qc5 2. Be3 Qa5 3. Rb1 Bxe3 4.Qxe3 Qd5 5.Qh6 Re6 6.Qg7 Rd6 7. Rb8 Rd8 8. Qg6+ Kd7 9. Qh7 Ke6 10.Qh6 Ke7 11.Qg5 Ke8 12.Qh5 Kd7 13.Qh7 Ke6 14.Qg6 Kd7 15.Qg7 Ke6 16.Rb6+ Rd6 17.Qg6+ Kd7 18Qxd6+ +- The critical line lasted 18 moves and even then Black didn't resign. What surprised me was how long Black was able to hold out against the mate threats, threats to win material and threats to trade down to a won endgame as finally happened. I would be curious to see the analysis of those who thought White is winning even if he trades Qs.


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