May-29-15
 | | al wazir: I didn't get it. Never looked at 26. Rd7.
But what about 26. Nd7 ? If 26...Nxd7, then 27. Rxd7, with the same threats as in the game line. Now if 27...Qe6, then 28. Rf6! Qxg4 29. Rxg6+, with mate next. If 26...Qe6, then 27. Qf4 Nh7 28. Rd6 Qf7 29. |
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| May-29-15 | | dfcx: First attempt:
26.Rxf8+ Rxf8 (Kxf8? 27.Nd7+) 27.Nd7 Qf5 and white does not have any decent follow up.26.Nd7 does not work either. That leaves us with
26.Rd7!
A. 26...Nxd7 27.Nxd7 and the queen does not have a good place to go, black can't defend both Nf6+ and Bf6 A1. 27...Qe6 28.Rf8+ Rxf8 29.Qxe6 
A2. 27...Qd6 28.Bf6 Kf7 29.Be5+ Ke7 30.Bxd6+ Kxd6 31.Rd1+ A3. 27...Qd6 28.Bf6 Kh7 29.Qh4+ Kg8 30.Qh8+ Kf7 31.Bd8+ Ke6 32.Qh3+ and mates soon A4. 27...Qg7 28.Nf6+ Kh8 (Kf7/Kf8? 29.Nxe8+) 29.Qh4+ Bh7 30.Nxh7 B. 27...Nh7 28.Bf6 Qh5 29.Rg7+ Kh8 (Kf8? 30. Nd7#) 30. Rxg6+ Nxf6 31.Rfxf6 |
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| May-29-15 | | dfcx: <al wazir: ...
But what about 26. Nd7 ? If 26...Nxd7, then 27. Rxd7, with the same threats as in the game line...>27...Rf8 and white does not have any good follow ups. Now 28.Bf6? is refuted by Rxf6. |
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| May-29-15 | | agb2002: White is one pawn down.
Black threatens 26... Qxc5.
The first idea that comes to mind is 26.Rxf8+ Rxf8 (26... Kxf8 27.Nd7+ and 28.Nxe5) 27.Bh6 (27.Nd7 Qf5) but after 27... Qh5 28.Qe6+ Kh8 White looks bad. Another idea is 26.Nd7, to eliminate or deflect the black knight A) 26... Nxd7 27.Bf6
A.1) 27... Nxf6 28.Qxg6+ Kh8 (28... Kf8 29.Rxf6+ wins) 29.Rxf6 with a winning attack (threatens 30.Qh6+ and mate in three). A.2) 27... Qh5 28.Qxh5 Bxh5 29.Rxd7 and the black king looks in danger. For example, 29... Rab8 30.Kxh2 e3 31.Rg1+ Kf8 32.Bg7+ Kg8 33.Bd4+ Kf8 34.Bc5+ Re7 35.Rxe7 wins. Or 29... e3 30.Kxh2 e2 31.Rg1+ Kf8 32.Bg7+ Kg8 33.Bd4+ Kf8 34.Bc5+ Re7 35.Rxe7 b6 36.Ra7+ wins. B) 26... Qe6 27.Rxf8+ Kg7 (27... Rxf8 28.Qxe6 wins) 28.Qxe6 Rxe6 29.Rxa8 wins. C) 26... Qc7 28.Bf4, with the double threat 29.Bxc7 and 29.Nxf8, seems to win a piece (28.Nf6+ looks less convincing). Another option is 26.Rd7, with a similar idea:
A) 26... Qxc5 27.Bf6 and the threat 28.Rg7+ wins (28... Qh5 29.Rg7+ Kg8 30.Rxg6+ Kh7 31.Qxh5#). B) 26... Nxd7 27.Nxd7
B.1) 27... Qd5 28.Nf6+ and 29.Nxd5 wins.
B.2) 27... Qe6 28.Rxf8+ wins.
B.3) 27... Qd6 28.Bf6 Kh7 (28... Kf7 29.Be5+) 29.Qh4+ Kg8 30.Qh8+ Kf7 31.Bg5+ Ke6 32.Qh3+ Kd5 33.Rd1+ wins. B.4) 27... Qc7 28.Bf6 looks similar to B.3.
I think I'd play 26.Rd7. |
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| May-29-15 | | leow: How about 26Bf6 I think that wins in a spectecular way as well, or did I miss something? |
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| May-29-15 | | leow: Cancel the above, it is wrong |
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| May-29-15 | | diagonalley: ...looked at 26.R-Q7 but dismissed it <diagonalley>: nul points :-( |
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| May-29-15 | | Warrush: If
26.Rxf8+ Kxf8
Then Bh6+ Seems to lead to mate or the very least a loss of the Queen and Bishop with 27.Bh6+ Kf7
28.Rd7+ Kf6
29.Bg7#
But I don't see any lines that lead to black winning with Rxf8 Nd7 |
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| May-29-15 | | Warrush: Woops I meant I don't see White winning with RxF8 Nd7 then Qf5. |
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| May-29-15 | | Gryz: I thought Rd7 wasn't any good, because black could play Nxd7. 27. Nxd7, Qe6. This is the key position for me. White plays 28. Rf8+, and if black takes Rxf8, then the Qe6 is not covered anymore. I didn't see this, so I rejected Rd7 as a first move. |
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May-29-15
 | | chrisowen: a done deal again as booted 26.Rd7 Qxe5 or betcha 26.Re6 27.Rxf8+ jatha seek room trade away in light f8 an win e6 effects again effort in spade e6 josh around in serious business at hand job fancifuls at claws f8 in demand a common fistful again cruise a wave spark in flurries it crevice f8 ogle at dawn in light e6 win as heffa lump ave f8 in traders 27...Rxf8 28.Qxe6+ count effaces off at monster position ash hive abacus count e6 longer bill to rights again light win at e6 dog in dig ive white vet in efface up black baulk at back bucks e6 milly on ash in aims rove spark e6 bank i effects special care in spades d7 at among first f6 if then c5 and angle e6 win at everest mountain climb e6 trade effigy rate c5 knight good chance go build e6 arm fiefdom castle d7 at win efface off at now enters again safe fang tooth e6 fav lump in throat fester glide errands am give spark e6 at bullseye 28...Qxe6 29.Nxe6 piece ahead an monster 27.Bf6 at flip the script black looses e7 queen and rook for lady c5 in arrears am ply in team c5 avelights eg ment victor e7 i ment quarter back c5 good chance give jod hopper e7 headers aorta dip an mind jangle over c6 lesson slide away in light ive got able win jade jabbed e7 riguer ill ave healthy roi jabbed down jacked jedi c5 jed ace knight jaffa bled jossed e7 sticks eg ment quarter back c5 angled joshed ive jilted throne jocked around jellied eels c5 jaunted and jawed e6 jarred jostled for position ive at cream e6 jotted as hey judge e6 courts e7 ment quarter back c5 angle joie de vivre e6 juiced bed jaxed an joyed in light a bod ive coda do dance around a flood gate monarch eg unsafe although just win queen e6 liege nt around e7 a dog ho dunce knight aid on an c5 ever am dock load at again dominate the scene dove aorta quotad road and soak up holy in light f6 at monster drink flights soda water toad a dove an axled in light ave on day yoda man delivery am routed d7 at won diligent an dabblers key ash dash hand an deranges am deciders at deadflow an decadent debriefs ive in debonairs am flight decamped an deciders tree c5 of lifes and still e6 dead at be fine doghouse an doorknob in band doorbell an donglers banjo night leer c5 angled dumbells an duck e5 hovels hops ave daddybug an duffhead at danglers ive dojomats an dockhunt ramble d7 give spark f6 dullmood have in daquiris an dossheap at manages have a dovetail joint i dayhouse blues e6 ever c5 back e7 drink in light win a fed good dive gaff c5 lade e5 fag ive lode safe good fledged on fang dive dig efface up fled give eg diffuse flog deep account ive accent e7 accustom in a tour c5 niche queen ever c5 over am e7 gantry exactly again i dogmatic match eg win district an gumball came dig cad geminate flow c5 around angle f6 at win queen eg liege nt ampled e7 riguer ill ave mack dog at enact ramble give bad man d7 back rod dip shin etc hi in plans mind over e5 ram boat ja ship c5 back maxed in batch hand c5 said it sense in bailed e7 neck rever wallow with a good again sand rates receive f8 at enact won as hive is the f6game thod carry in light bath since success mmmm as have a choice d7 pray e5 mind alive spark over c5 angled beck and call am good bind choose give did beeline yes light eyes up d7 and back e5 bade c5 as not good i flurry it under the hammer e7 in ment bath reed bank id ghost f6 at monster accost a flinched eg win stop have get able mission select d7 over straight port of cull c5 angle f6 at win cap hive arrive danced d7 jig off. |
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| May-29-15 | | morfishine: <Warrush> If 26.Rxf8+ is answered by 26...Kxf8??? Then White forks the Queen with 27.Nd7+ ***** |
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| May-29-15 | | wooden nickel: 26.Rd7 is rather hard to pin down because there are so many other moves to consider with interesting ideas that "almost" work! |
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| May-29-15 | | kevin86: White threatens a windmill and a queen assault...black hang up the spurs after that. |
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May-29-15
 | | Jimfromprovidence: 26 Rd7 was a complete surprise. I thought black had adequate defenses for this move. First of all, I missed how powerful the line 26 Rd7 Nxd7 27 Nxd7 is for white. For example if 27... Qh8, then 28 Nf6+ Kg7 29 Qd7+ wins. 
click for larger viewI also missed the win after 26 Rd7 Re6.(which prevents against 27 Bf6). 
click for larger viewWhite wins a piece after 27 Rxf8+ (this removes one of the two defenders of the rook on e6) 27...Rxf8 28 Qxe6+. 
click for larger view |
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| May-29-15 | | BOSTER: 26. Rd7 e3. |
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May-29-15
 | | Richard Taylor: I spent a long time on Bf6 on the first move as I liked the idea of 26. Bf6 then if Qxc5 27. Qh3 and if Bh7 then 28. Bd4 or and Rfg1+ sacrificing the rook or rooks but Black can simply play 26...Qh5 so I had looked before at Nd7 and Rd7 and finally decided that Rd7 was the move I would play. The trouble with positions like this is that White has so many interesting lines. But I had seen that NxR would be fatal or pretty bad so the Bf6 idea sold me on it. |
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May-30-15
| | Richard Taylor: I'd seen that Rf8+ idea, it's nice. I was so sure even without calculating all the lines too much that Black couldn't take on d7. Interesting game. |
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| May-30-15 | | patzer2: Here's my look at the game and the Friday, May 29, 2015 puzzle position (26. ?) with Deep Fritz 14: <20...Nf8?> This appears to be where Black starts to lose it. Instead, Black has a slight advantage with the clever 20... Bg6! when play might go 21. gxh6 Kh7! 22. Nf4 Ne5 23. Qxh3 Qg5+ 24. Kf2 Ng4+ 25. Ke2 Nxe3 26. Qxe3 Qg4+ 27. Kd2 Rad8+ 28. Kc1 Qf3  (-0.51 @ 27 depth). <26. Rd7!!> This solves yesterday's Friday puzzle. Also winning, though not as strong, is 26. Nd7 when play might go 26...Nxd7 27. Bf6 Qh5 28. Qxh5 Bxh5 29. Rxd7 Re6 30. Rf5 Rxf6 31. Rxf6 e3 32. Re7 e2 33. Rf5  (+2.08 @ 22 depth) Weak is 26. Bf6? Qh5! =.
<26... Qxc5>
If 26... Nxd7, then White wins after 27. Nxd7 Qe6 (27... Qg7 28. Nf6+ Kh8 29. Qh4+ Bh7 30. Nxh7 Qxh7 31. Bf6+ Kg8 32. Qg5+ Kf7 33. Bg7+ Ke6 34. Qe5+ Kd7 35. Rf7+ Re7 36. Qxe7+ Kc8 37. Qc7#) 28. Rf8+ Rxf8 29. Qxe6+ (+21.48 @ 22 depth). <27. Bf6! 1-0>
Black resigns in lieu of 27...Qh5 28. Rg7+ Kh8 29. Rxg6+ Kh7 30. Qxh5#. |
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| May-30-15 | | morfishine: <patzer2> You beat me to it! I didn't have much time yesterday to work on
this problem, and what time I had I spent on 26.Rxf8+ Only after spending some time this morning with a PGN viewer did I
fathom the strength of <26.Rd7> combined with <Bf6> and found the final
killing combination as you noted: 27...Qh5 28. Rg7+ Kh8 29. Rxg6+ Kh7 30. Qxh5#. <Richard Taylor> At least for me, this one was extra hard to visualize for some
reason
***** |
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May-31-15
| | Richard Taylor: <<morfishine><Richard Taylor> At least for me, this one was extra hard to visualize for some reason> Yes. I have positions I simply cant seem to see. I didn't actually see all the moves. I think in an OTB, esp. at the time control I'm playing now which I think is too fast ( that is 75 minutes and 30 sec increments for the whole game ) I find I sometimes have simply or almost guess my moves, trying simply to ensure I haven't made an error or blunder. I think I might have gone into this attack but whether I would have found the right plan I don't know... I think that even if you see some interesting ideas you are doing well in these problems. I think I'll leave the insane one as they take up too much time. I sometimes just look those up. Sometimes I have trouble working out those: this takes this, then that takes that, and so on... A kind of exchange which I suppose a Master or strong player would see more or less instantly. Also the psychology of being OTB is significant. Hang in there! |
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| Jun-06-15 | | morfishine: <Richard Taylor> Thanks for the reply, sorry for the slow response. I enjoy reading your posts. I spent about 2-years straight recently, solidly working on "my game", and had decent results gaining ~200 rating points. Its striking that when one backs off of "chess training" how quickly rust sets in. When I was "in training" I would work through the POTD in my head while driving to work. This is very hard to do if one is not working through 10-15 problems per day. Good point about the 'psychology of OTB'. No doubt, one can visualize better if one has played all the moves up to that point (ie: actually playing that game). So, to visualize a continuation from someone else's game, this takes some special skill, more of a positional awareness skill, that can be either natural or acquired (with constant work) ***** |
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Jun-10-15
| | Richard Taylor: <morfishine> That's a good increase. I increased about that much in 2010 but then for psychological reasons I had a disastrous tournament. So lately when I play I am almost too cautious. But I achieved a target of 50% in the recent NZ Open. Now my attitude was I was prepared to lose games. But when I did lose (or make draws when it was needless as in one game when I made a silly oversight). Also I made fewer outright blunders. In game one I was very close to beating a GM but missed an intermezzo that enabled him to get a better game. But then I had some interesting games and concentrated on every game: game by game. My aim was not to go "ape" as I did say in 2011 and a few other tourneys. But I increased my rating this way 1) Luck. 2) By studying many master games on here and on YouTube or in books and putting a lot of effort into solving calculations and problems etc 3) I studied openings more seriously (but I have never really been able to study openings for long, it seems such a massive task, but it paid off in this case - 2010) 4) Up and until 2011 I had a fairly good approach. I don't have the ability to solve problems while driving to work, that sounds a bit dangerous! I don't do that. I need a board or a diagram. Now even when I started out, I used to work out all the lines in the notes "in my head"...so that has always helped. I play over master games. For me though, chess is a hobby and not my main interest but I like the odd tourney and play club chess. All the best! |
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Kibitzing
sac: 26.Rd7