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JoshSpecht - Checkmating with B+N [14:20] 
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Post JoshSpecht - Checkmating with B+N [14:20]
Poster: JoshSpecht
Name: Josh Specht
Federation: USA
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Video Tags: Bishop Checkmate Checkmates Endgame Instruction Knight Training

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Liked By: gentlewhisper, cropduster, kamus, thechesser, Fox



Thu Aug 30, 2007 5:06 pm
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Here is the analysis:

1.Be5 Ke3 2.Bd4+ Ke4 3.Kc4 Kf3 4.Kd3 Kf4 5.Be5+ Kf3 6.Kd4 Kf2 7.Ke4 Kg2 8.Ke3 Kg1

[8...Kh3 9.Kf3]

9.Kf3 Kh1 10.Bg3 Kg1 11.Ne5 Kh1 12.Nd3 Kg1 13.Nf2 Kf1 14.Bh2 Ke1 15.Ne4 Kd1

[15...Kf1 16.Nd2+ Ke1 17.Ke3 Kd1 18.Kd3 Ke1 19.Bg3+ Kd1 20.Nc4 Kc1 21.Be1 Kd1 (21...Kb1 22.Kc3 Kc1 23.Ne3 Kb1 24.Kb3 Kc1 25.Bb4 Kb1 26.Bd2 Ka1 27.Nc4 Kb1 28.Na3+ Ka1 29.Bc3#) 22.Bc3 Kc1 23.Ne3 Kb1 24.Kc4 Kc1 (24...Ka2 25.Kb4 Kb1 26.Kb3 Kc1 27.Bb4 Kb1 28.Ba3 Ka1 29.Nc4 Kb1 30.Nd2+ Ka1 31.Bb2#) 25.Kb3 Kb1 26.Bd2 Ka1 27.Nc2+ Kb1 28.Na3+ Ka1 29.Bc3#]

16.Ke3 Kc2 17.Nd2 Kb2

[17...Kc3 18.Bd6 Kc2 19.Bb4 (19.Ke2 Kc3 20.Bc5 Kc2 21.Bb4 Kc1 22.Kd3 Kd1 23.Nc4 Kc1 24.Ne3 Kb2 25.Kc4 Kb1 26.Kb3 Kc1 27.Bc3 Kb1 28.Bd2 Ka1 29.Nc2+ Kb1 30.Na3+ Ka1 31.Bc3#) 19...Kd1 20.Nf3 Kc2]

18.Bd6 Kc3 19.Bc5 Kc2 20.Bb4 Kd1 21.Ne4 Kc1 22.Kd3 Kb2 23.Ba5 Kb1 24.Bd2 Kb2 25.Nc5 Ka2 26.Kc2 Ka3 27.Bc3 Ka2 28.Bb4 Ka1 29.Nd3 Ka2 30.Nc1+ Ka1 31.Bc3# Black checkmated 1-0

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Thu Aug 30, 2007 5:07 pm
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Rook

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Post 
Finally, the long awaited video! Good job, but it still takes practice to make it work. Once you understand the main patterns, you can do it. The hard part is getting the king to the edge of the board, but you gave a good example of that.


Thu Aug 30, 2007 5:54 pm
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I saw a video dealing with the same problem on youtube a few weeks ago. Your video is much clearer, your explanations a lot better. Really helpful.
Thank you!


Fri Aug 31, 2007 12:06 am
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Thanks, I'm glad you find the explanations clear! It's a pretty tricky checkmate to explain.

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Fri Aug 31, 2007 7:31 am
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Pawn

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Post 
I found the link you left on my Chess Lessons site to this video as a comment on this lesson and I like it very much.
It is indeed a difficult checkmate to explain, but you managed very well.

I think that a combination of both our explanations would be even better, because by showing the attacked squares the plan becomes more visible.


Fri Sep 28, 2007 10:47 am
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King Goo

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On move 22, the common way to checkmate would be Nf3, followed by Nd4, creating a quadrant trap.


Mon Oct 22, 2007 1:03 pm
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Post Great Video!!!
Awesome video, I have watched several videos on how to mate with B+N vs. K but never really got it. After a few tries on Chessmaster I finally got it! Thanks so much!!!


Sat Dec 01, 2007 12:20 pm
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a freind of mine (who is a master rated now about 2100) told me he couldnt force this because he didnt learn how to.he also had very little time left about 5 minutes.i told him he should learn how.he said it only happened once in forty years.the point of the story is its extremely rare but if you play long enough it will eventually happen sooooo LEARN HOW!!! well i watched the video and still cant do it but i still have over 30 years left until it happens to me :)

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Fri Jan 18, 2008 10:42 pm
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Post Re: JoshSpecht - Checkmating with B+N [14:20]
Thanks Josh. I have been playing chess for years and never learned this mate. The two times I have actually had a N & B against a lone K, I had to take a draw. Thanks to your video, if it ever comes up again, I now know how to kill that K!


Thu Apr 17, 2008 3:44 pm
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Post Re: JoshSpecht - Checkmating with B+N [14:20]
Glad you like it!

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Tue Apr 22, 2008 8:56 am
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Post Re: JoshSpecht - Checkmating with B+N [14:20]
Josh,

Very nice job! I couldn't help but notice that as you were explaining how the Black King can cooperate in running to the correct color corner for the bishop and that this makes things more difficult for the side with the Bishop and Knight, you suddenly realized that after Bd6 the Black King could actually return to d1 after the move Kc2 offering the possibility of escape, and the consequent longer variation of having to reign in the Black King again. If you would like to make your explanation crystal clear I suggest you take a look at Bruce Pandolfini's article in Chess Life & Review. I am sure they have it in their archives and easily accessible.

Just as a preview, it is delightful how he correlates the mating technique to Geometry by pointing out that the mating technique involves a series of three(3) concentric triangles(as the word "concentric" indicates each successive triangle smaller than the last) that the Enemy King is forced into, executed by the Bishop, helped by his King and his Knight. You did that without realizing it after the white moves Ke2, Bc5, Bb4. Or, the other possibility is that you already knew this concept, but forgot to mention it.

The concentric triangles for your particular example are: Triangle 1- hypotenuse( g1-a7) side1(a7-a1) side2(a1-g1),
Triangle 2- hypotenuse( e1-a5) side1(a5-a1) side2(a1-e1)
Triangle 3- hypotenuse( c1-a3) side1(a3-a1) side2(a1-c1)

After reading this article I thought to myself, " This is it!; I'm hooked!!


Tue Jun 10, 2008 1:36 pm
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Post Re: JoshSpecht - Checkmating with B+N [14:20]
It is really helpful video. I did not know how to mate like this, because when I played against computer, it always got away through c2-b3 squares. However, it was quite stunning to see how knight and bishop (placed on d2 and d6) close the lines for a king and it actually can't escape.

Here's a game from last year's FIDE World Cup, where exactly the same position ended in a draw.

http://www.chessgames.com/perl/chessgame?gid=1479874


Tue Jun 24, 2008 1:51 pm
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King

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Post Re: JoshSpecht - Checkmating with B+N [14:20]
Gregory Shahade (Our own Curtains!!!) found the answer to the B+N mate over the board!!! Just amazing: http://www.chessgames.com/perl/chessgame?gid=1211626

I had been practicing this mate for a while and a week after I fully mastered it I had the same ending on the Playchess server in a blitz game and I mated him. Getting your opponent to the edge of the board is the hardest part, the rest is all memorizing patterns and memorization.


Mon Jul 07, 2008 4:55 am
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Post Re: JoshSpecht - Checkmating with B+N [14:20]
Getting your opponent to the edge of the board can be tricky, but I just figure that if I can get all my pieces in the center, the enemy king will be near the edge :)

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Mon Jul 07, 2008 8:03 am
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