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< Earlier Kibitzing · PAGE 21 OF 74 ·
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May-09-12
 | | morfishine: <sevenseaman> Excellent problems, no solutions this morning, though close to 40600 |
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May-09-12
 | | sevenseaman: <LK> Good sol of the insoluble #91492, though you have left all to my imagination. You can leave the details to junior doctors when you become the Chief Surgeon. #40600
1...Nf3 is the commonest blunder.
2. Qxf3 and Black has nothing.
Shoddy. You have to review, the wound suppurates. |
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| May-09-12 | | Limpin Kt: The problem i got wrong- <1.Nf5!! Rf1 2.Nh6> my plan of blockading f file was correct, but the tactical variation was unsound then. |
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May-09-12
| | morfishine: <sevenseaman> Well, I was trying to solve 40600 as White to play. Hey, can you do me a favor: Use a 'capital' B or W for white to play or black to play...I'm not blaming you: Its my tired eyes after looking at a computer screen all day...I blame them :) sol 91492: <1...Qe2+!! 2.Qxe2 Rxh7+ 3.Rh3 Rxh3+ 4.Kxh3 Nxf4+ 5.Kg3 Nxe2+> leaves white's position a smoking ruin sol 40600 <1...Nf5!> opens an attack on <Rd1> plus blocks the f-file; <2.Nc2> covers <e1> but <2...Nh6> wins on the spot as the White Queen is overloaded covering <d1> and <f7> Lovely!
Thats all for now...maybe take a crack at the other 2-later :) |
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May-09-12
| | sevenseaman: <morf> Good work on #91492 & #40600. <LK> #40600 is rightly restitched now. I'll be out today whole day, missing even the POTD. Have crossed 2150 now and it looks too tough even staying on the peak. I hate slipping back after an incredible amount of hard work. My accuracy is up to 99% or better but my speed is down to 1/10th. It takes a whole day to solve mere 30 to 40 puzzles. So expect less but of very high quality. You too can take your time. |
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May-10-12
| | morfishine: <sevenseaman> sol 93153 I am at a loss to find an adequate response by Black to White's forking move: <1.Qd1> attacking the pinned knight and the rook on <h5> If <1...Rg5 2.Qxd5> wins a piece...If there is something more magical, shocking or illuminating, I'd love to see it... :) Soon, battle will be joined: Anand vs Gelfand...I know who you are pulling for! |
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May-11-12
| | sevenseaman: #93153 Man you have nailed it. What can be more magical? Que voulez vous pour les celebrations?. Here is the complete story if you wish; 1. Qd1
( 1. Qd1 Qxe6 2. Qxh5+ Kg8 3. Rxb7 Rf7 4. Rb8+ Rf8 5. Rxf8+ Kxf8 6. Bxe5 Kg8 7. a6 Nb6 8. a7 ) 1... Qxe6
2. Qxh5+ *
Of course, I.ll be rooting for Anand. Its for him to measure up. If Gelfand can best him, so be it. I know we both root for quality chess. |
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May-11-12
| | morfishine: <sevenseaman> I apologize for not giving you a complete line for 93153: This puzzle really is 'riveting' as you so eloquently put it; yet what is required is not brute force, but a quiet shift of the Queen to the right; (I was driving in to work when I realized Black had to play <1...Qxe6> giving up an exchange instead of a whole piece, but this capture allows an eventual <3.Rxb7> since the Black Queen moved...) |
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May-11-12
| | sevenseaman: #70883
My POTM for May. You need to go 8 precarious moves for the full solution. And you'll be able to gauge the probability of a slip. 
click for larger viewWhite to play and win. |
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May-11-12
| | sevenseaman: <morf> I am happy that we concur in the quality assessment of #93153. The puzzle completely enveloped your thoughts. I wish you found a way of putting it out of your mind while on the wheel. But I can appreciate how difficult would that be. I went past 2200 today. Had 2 slippages. Each slip takes another 10 games to recover. The penalties now are very exorbitant and rewards far too stingy. Let me see how long do I hold on to it. At times the mind goes into a kind of stupor and even knowing which direction White (or Black) is proceeding takes special effort. |
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May-11-12
| | sevenseaman: #51584
Complicated.
click for larger viewBlack. |
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May-12-12
| | sevenseaman: #53620
A clever problem for cleverer people.
click for larger viewWhite. |
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May-12-12
| | morfishine: <sevenseaman> How was your time off? I will try to solve your two latest puzzles in the morning. |
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May-12-12
| | sevenseaman: <morf> Note, there are 3 great puzzles and one of them is a POTM. Time off? Full 48 hours away from the post. Very nice, sort of <recharged> my batteries and improved inter-relationship orientation and perspective. <morf> I am at the cusp of 2300 (2292.7). Its tougher than I had thought. Say I play 5 successful games; my rank improves from 21 to 18 among 11500. From better than 99.82% I go better than only 99.85%, my rating from 2280.3 to 2292.7 and my correctly solved percentage from 70.03 to 70.05 %. Near the summit, a slow crawl looks ordained.
The only bright lining is that I've gone 44 games w/o dropping one. 6 more and I'll have my dream green page. I have to take lots of breaks, a mere 10-15 puzzles a day, whereas I used to knock off 300 to 400. I think you too have your hands full. Take your time, things change. How is the health? |
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May-12-12
| | morfishine: <sevenseaman> Thats fantastic that you are moving ever upward! Sure, there are limits to how many one can solve per day, but we are mere mortals, except perhaps you? Health is fine now; I've received some help at work which has much reduced the stress: after all, a 300% increase in case-load necessitated some kind of support These latest two puzzles look very good so I want give my keenest attention...did I overlook one?...oh, the POTM...overlooked it :) |
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May-13-12
| | morfishine: <sevenseaman> Good morning! Sol 51584 <1...Ng5> (A) <2.Qe2 Nxh3+ 3.Kf1 Bxg2+ 4.Rxg2 Qxf4+ 5.Ke1 Rfe8> (B) <2.Qf5 Bc8> |
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May-13-12
| | sevenseaman: #51584 Hurray on finding 1...Ng5 and in one variation even 2. Qf5. This is the solution. You can see the logic as well as anyone. 1...Ng5
( 1... Ng5 2. Qxg5 hxg5 3. fxg5 cxd6 4. Nd2 Rae8 5. Nf3 Bxf3 6. Rxf3 Qxg5 7. Rf5 Qe3+ 8. Rf2 Qc5 ) 2. Qf5 Bxg2
3. Qxg5 hxg5
*Refutation of <2...Bc8> 1...Ng5 2.Qf5 Bc8 3. d7
A sundry illustrative comment;
<kaji, 13th Sep 09 17:18: (1987.7)
after 1...Ng5, there are not a lot of variations possible either for white or for black.
Black has to defend the h3-pawn and therefore the answer 2.Qf5 is logical
But after that no one move for black is suitable and if white has time to plat Nd2, the attack is finished.
Only a radical move can help black. Thus 2.Bxg2> And here is my comment on the solution;
<sevenseaman, 12th May 12 02:20:(2323.2)
The moment I found 1...Ng5, I knew things were going to happen. f4 cannot take it. The N at g5 works better as a threat(it has to defend h7 too) than using it for Nxh3+ which is a vague temptation until after the B arrives on g2.> <morf > solve these quality puzzles in peace. You will get VIP treatment and I will not stampede you with anymore till we finish the two remaining. That is, if these catch your fancy. |
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May-14-12
| | morfishine: <sevenseaman> Now I see it! Chase the Black Queen to force a break in communication with the black rook: sol 53620 <1.Red1 Qf4 2.g3> and the rook is lost; <1...Qc3> doesn't help due to <2.Rb3> |
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May-14-12
| | sevenseaman: Its a bit more complicated. Your thought process & the first move was close. See if the sol helps; 1. Rbd1
( 1. Rbd1 Qc3 2. e6 fxe6 3. Qxe6+ Kh8 4. Qf7 Qf6 5. Qxc4 Qxf2+ 6. Kh2 Qf6 7. Rd7 Ra8 8. Ree7 h6 9. Qe4 Rg8 ) 1... Qc3
2. e6 fxe6
3. Qxe6+ Kh8
4. Qf7 Qf6
5. Qxc4 *
4. Qf7 is a magic move. Threatening one R then surprisingly going for the other a distance away. Its like a rugby player throwing the ball in the air, squeezing through two powerful defenders and catching it again in his stride out. Beautiful, isn't it.
I am devoting all my energy so that you stay in touch with the latest developments. I know life is tougher now and that you are a very busy man. But I also know its not every other guy who will still find the time & energy to sustain your high level of application to this beloved pursuit. Now only #70883, the POTM remains. (Delighted with the good news on the health front). |
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May-15-12
| | morfishine: <sevenseaman> Thanks for the lengthy response. Very nice. I overlooked that Black can play his Queen to <c2> barely holding on. I am taking my time on the POTM as one must be very careful: You gave one clue: 8 precarious moves. This can only mean that the first move is of paramount importance (or it all tumbles like a house of cards in the slightest wind) |
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May-15-12
| | sevenseaman: #72806
Although rated at 2243.2, this one is not all that tough. Most solvers overlook one small detail and the problem wins. 
click for larger viewBlack. |
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May-15-12
| | morfishine: <sevenseaman> Thanks for dropping by! I finally solved the last of <AJ>'s puzzles. Now its on to your POTM...perhaps I can squeeze in 72806 before then! Both are very good and "mind-occupying" to say the least Thank you dear friend for these :) |
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May-17-12
| | sevenseaman: #76653
Computer's sol is brilliant. Its enough if one can merely follow the idea. Besides there can be alternate ideas of equal force. The one actually played was different. 
click for larger viewBlack.
If there's no sol I will give it out on Monday. |
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May-18-12
| | sevenseaman: #98442
A problem at which I was the 7th to try and the first to succeed. Tough but 9 logically flowing moves take you home. 
click for larger viewBlack. |
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May-19-12
 | | Jimfromprovidence: <Sevenseaman> <Thanks <jim>. These kind of endings are really scary for me. Too much scope for a slip. How do I access the tablebases and what do they tell us? Can these be used in a real game or one has to build up the proficiency.> The tablebases give you the solution to every combination possible for any chess ending with six pieces or less. This link connects to the site that I use.
http://www.k4it.de/index.php?topic=...
You can't use them in a game; they are rather an answer key. Regarding that puzzle yesterday, there was more to that than met the eye. in the position after 84...Kb6!, I thought that white had to take the knight, taking the king out of the game, but that really was not the case. 
click for larger viewWhite could play 85 Ke5, for example and the king would not be shut off from trying to stop the pawn advances. It turns out that that one tempo black gains by 84...Kb6 is just enough to win. Generally in this type of endgame, it's a draw as the side behind captures one pawn with knight and king and then sacrifices the knight to stop the other pawn. I honestly can not say yet why that does not work here. That's where the tablebases come in. |
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