Endgame Puzzle #4

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7th November 2009, 08:38am
#1
by master_in_panama
Düsseldorf Germany
Member Since: Jul 2009
Member Points: 300

Here is the next puzzle from my book!

ANWSER TO PUZZLE #3: B! 1. Be6! 1...Ke7 (1. Kf8 h6!) 2. h6 2...Kf6 (2...Kxe6 h7+-) 3. Bf5! 3...Kf7

(3...Kxf5 4. h7+-) 4. Bh7! 4...Kf6 5. Kg3 5...Kf7 6. Kg4 6...Kf6 7. Kh5! 7...g4 8. Kxg4 8...Kf7 9. Kg5 9...Kf8 10. Kf6 +-

 

PUZZLE:

A) White wins after 1. Bc4

B) White wins after 1. Bg6 

C) The Endgame is drawish

8th November 2009, 08:22am
#2
by Liburkin
Traverse City, Michigan United States
Member Since: Oct 2009
Member Points: 22

Is this a composed study? The Namilov tablebase tells me this is a win for white after Bc4.

8th November 2009, 08:47am
#3
by master_in_panama
Düsseldorf Germany
Member Since: Jul 2009
Member Points: 300

yep, its not from  a game...it is a study...and, please, dont use engines for those puzzles AND you will have to give analisys to prove your anwser ;)

8th November 2009, 08:54am
#4
by johnkorean
Charlottesville United States
Member Since: Jan 2009
Member Points: 48

I'm terrible at endgames, but 1. Bc4 d3 2. Kd6 d2 3. Ke7 d1=Q 4. f8=Q+ and the extra Bishop should be a win from there?

8th November 2009, 09:18am
#5
by kunduk
kolkata India
Member Since: Feb 2009
Member Points: 861

have you written a book on chess?

8th November 2009, 10:12am
#6
by MostWanted147
Ahwaz Iran
Member Since: Jul 2009
Member Points: 312

the answer is a and b not a drawish position though

but i like Bg6 its more exciting:D

simple

if white goes for Bg6 there is no way to capture white pawn unless the bishop is gone, and if it capture with king white easily promotes to queen.

so its win for white and i show it on diagram too

8th November 2009, 10:25am
#7
by Boring304
Israel
Member Since: Sep 2007
Member Points: 676
MostWanted147 wrote:

the answer is a and b not a drawish position though

but i like Bg6 its more exciting:D

simple

if white goes for Bg6 there is no way to capture white pawn unless the bishop is gone, and if it capture with king white easily promotes to queen.

so its win for white and i show it on diagram too

 


erm.. no

1.Bg6 d3! 2.Kd6 d2 3.Ke7 d1=Q 4.f8=Q+ KxB draw

1.Bc4 d3! 2.Kd6 d2 3.Ke7 d1=Q 4.f8=Q+ K(moves).. if Nalimov is saying that white can win this then he can, but it's not easy

8th November 2009, 10:30am
#8
by MostWanted147
Ahwaz Iran
Member Since: Jul 2009
Member Points: 312
Boring304 wrote:
MostWanted147 wrote:

the answer is a and b not a drawish position though

but i like Bg6 its more exciting:D

simple

if white goes for Bg6 there is no way to capture white pawn unless the bishop is gone, and if it capture with king white easily promotes to queen.

so its win for white and i show it on diagram too

 


erm.. no

1.Bg6 d3! 2.Kd6 d2 3.Ke7 d1=Q 4.f8=Q+ KxB draw

1.Bc4 d3! 2.Kd6 d2 3.Ke7 d1=Q 4.f8=Q+ K(moves).. if Nalimov is saying that white can win this then he can, but it's not easy


sorry my mistake friends, i didnt looked throughly, only the answer i gave about 6move was correct which is Bc6

thanks boring

8th November 2009, 12:58pm
#9
by xie1995
Canada
Member Since: Jun 2009
Member Points: 47

A

 

The solution is REALY long

1. Bc4 d3 (1. ... any other move 2. Kxd4) 2. Kd6 d2 3. Ke7 d1=Q 4. f8=Q+ with all kinds of threats, and it probably force the loss of the Black Queen

8th November 2009, 01:08pm
#10
by NM tonydal
United States
Member Since: Oct 2007
Member Points: 4225

I looked it up on Nalimov and yes, that's a very pretty and elegant win. And since I'm not Troitsky, m_i_p, it's not very likely that I would be able to come up with all of that myself (if you don't want people to use engines, post the solutions along with the problems, especially for such labyrinthine vars as that one was).  Particularly lovely btw was the variation ... Kh4; Qf2+.

8th November 2009, 03:12pm
#11
by master_in_panama
Düsseldorf Germany
Member Since: Jul 2009
Member Points: 300
kunduk wrote:

have you written a book on chess?


No, I haven't written a book on Chess. Why? :D

And, btw, good job on trying to solve the puzzle...you guys are all very good...but remember, Im not gonna paste the answer until tomorrow ;)

9th November 2009, 08:01am
#12
by marvellosity
Portsmouth United Kingdom
Member Since: May 2009
Member Points: 1404

Argh, just typed out all my analysis and lost it :(

Let's try again, since I spent some time trying to work it out.

1.Bc4 (only try) d3 2.Kd6 d2 3.Ke7 d1=Q 4.f8=Q+. Now I will consider 4...Kg6 because I think 4...Kh7 tranposes after 5.Qf7+ Kh6 6.Qf6+.

Anyhow, 4...Kg6 5.Qf6+ Kh7 6.Kf8 seems to mate, so 5...Kh5. Now I spent a long time trying to make 6.Qf5+ and 6.Bf7+ work, but I couldn't (they might well be correct, but it was beyond me...) so instead I think maybe 6.Qe5+. Now 6...Kg6 Bf7+ seems to mate, 6...Kh6 7.Qe3+ seems to mate (Kh5 Be2+ winning the queen is an option, Kg6 Bd3+), so 6...Kh4 and now 7.Be2! wins. If the Black queen doesn't cover f4 White will play 8.Qf4+ and 9.Bf1+ winning, so 7...Qd2(c1) 8.Qh2+ Kg5 9.Qh5+ Kf4 10.Qh6+ wins the queen.

I fear I have missed something here, but that's my stab.

Edit: I now see 6.Qf5+ was correct from the answer in the next puzzle, going to have to check what went wrong with my analysis :(

9th November 2009, 02:05pm
#13
by marvellosity
Portsmouth United Kingdom
Member Since: May 2009
Member Points: 1404

I'd like to add to my post above that having checked it out with an engine, all my analysis was correct! 6.Qf5+ and 6.Qe5+ are both correct moves.

In fact, my analysis is pretty much flawless, except of course I couldn't make 6.Qf5+ work. Go me! Although I'd like to point out I did use an analysis board, but still to see moves like 7.Be2 and stuff I'm quite pleased with - I think I must have only had this idea after looking at Qe5, because it's why Qf5 works too.

I think 6.Qe5+ is much easier to 'decipher' as a human, because the Be2 is much more obvious with the queen already guarding the square.

9th November 2009, 02:15pm
#14
by master_in_panama
Düsseldorf Germany
Member Since: Jul 2009
Member Points: 300
marvellosity wrote:

I'd like to add to my post above that having checked it out with an engine, all my analysis was correct! 6.Qf5+ and 6.Qe5+ are both correct moves.

In fact, my analysis is pretty much flawless, except of course I couldn't make 6.Qf5+ work. Go me! Although I'd like to point out I did use an analysis board, but still to see moves like 7.Be2 and stuff I'm quite pleased with - I think I must have only had this idea after looking at Qe5, because it's why Qf5 works too.

I think 6.Qe5+ is much easier to 'decipher' as a human, because the Be2 is much more obvious with the queen already guarding the square.

well, then good job, u found an alternate anwser ;)

 


9th November 2009, 02:28pm
#15
by NM tonydal
United States
Member Since: Oct 2007
Member Points: 4225

There's also the mate after 7... Qa1.  Like I say, it was all a very nice win.

 

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