مجله فوق العاده شطرنج 167 آموزش تصویری, ChessBase Magazine Extra 167
اختصاصی از یارا فایل مجله فوق العاده شطرنج 167 آموزش تصویری, ChessBase Magazine Extra 167 دانلود با لینک مستقیم و پرسرعت .
ChessBase Magazine Extra 167
دانلود مجله فوق دالعاده شطرنج 167
شامل 3 فیلم آموزشی مفید و 39097 بازیهای جدید از ماه جوئن تا آگوست 2015
39.097 games from Juni to August 2015
همراه با نرم افزار چس بیس ریدر برای اجرای فیلمها وبازیها
محصول : chessbase 2015
دی وی دی کامل
یکی از بهترین منابع شطرنجی مجلات فوق العاده شطرنج سایت چس بیس میباشد که بعد از مجله شطرنج هر ماه منتشر میشود. شامل 3 فیلم آموزشی ودیتابیس بروز ترین بازی های انجام شده ماه جاری
آموزش تصویری - مجله فوق العاده شطرنج - 167 دارای 3 فیلم آموزشی بسیار مفید و دیتابیس بازیهای جدید
• آدریان میخائیل چیشین Mikhalchishin ارائه یک ایده و یک مجموعه در برابر دفاع نیمزوهندی همرا ه با آموزش طرح های وسط بازی این شروع بازی محبوب
"بهترین بازی من تا به حال " • سرگئی تیویاکوف نشان می دهد بازی خود را در برابر Razuvaev با یک قربانی پوزیسیونی زیبا phantastic!
• رابرت ریس با تجزیه و تحلیل یکی از معروف ترین بازی های جهان در همه زمان ها: بازی میخائیل بوتوینیک - کاپابلانکا (آورو1938).
39.097 games from Juni to August 2015
Video training:
• Adrian Mikhalchishin presents a repertoire idea against the Nimzo Indian – no spectacular line but Black will have to play with an isolated d-pawn. And that’s what many players hate indeed!
• „The best game I ever played!“ Sergei Tiviakov shows his game against Razuvaev with more than one phantastic positional sacrifice!
• Robert Ris analysis one of the most famous games of all times: Botvinnik-Capablanca (AVRO 1938).
توضیحات دانلود
بعد از پرداخت مبلغ در صفحه ای که مختص شما باز میشود بر روی لینک دانلود مستقیم پرسرعت با حجم 245 مگابایت کلیک کنید میتوانید فایل ها را مشاهده و دانلودکنید
فایل فشرده را با نرم افزار 7zip باز کنید
مجله معتبر سایت چس بیس شماره ChessBase Magazine 164
اختصاصی از یارا فایل مجله معتبر سایت چس بیس شماره ChessBase Magazine 164 دانلود با لینک مستقیم و پرسرعت .
مجله معتبر سایت چس بیس شماره ChessBase Magazine 164
ChessBase Magazine 164 – A day well spent!
نسخه کم حجم
مجلات معتبر سایت چس بیس جزو بهترین مجلات آموزشی جهان که به صورت فایل های ویدئوی و فیلم های آموزشی و کتابهای cbh , و بازهایی بصورت تفسیر کامل به همراه دیتابیس های آموزشی شروع بازی و وسط بازی و آخر بازی هر ماه منتشر میشود و جزو پر فروشترین مجلات جهان میباشد
توصیه میشود حتما این مجلات را دانلود کنید
گزارشی کامل درباره مسابقات بزرگ جهان
علاوه بر آن، دارای مطالب آموزشی در مراحل سه گانه شطرنج(تئوری شروع بازی،دامهای شروع بازی،آموزش حرکت به حرکت از دانیل کینگ،استراتژی،تاکتیک،آخربازی،تمرینات آموزشی)
برای باز کردن مجلات از نرم افزار chessbase یا فریتز استفاده کنید
Highlights:
• World Championship Sochi: It cost Carlsen a lot of effort to gain his 6.5:4.5 victory..The seconds Peter Heine Nielsen and Radek Wojtaszek have each annotated a game. Daniel King’s 11 daily summaries in video format are also something you should not miss!
• London Chess Classic: Anand was in surprisingly good form right after the wch and managed to decide the tournament in his favour. Kramnik has annotated his game against Nakamura. In addition there are two daily video summaries by Daniel King.
• Qatar Open: The Chinese player Yu Yangyi defeated in succession the two leaders Giri and Kramnik and won the strongly contested open with 7.5 out of 9. The 20-year old has annotated these two wins for this issue!
• Moscow Petrosian Memorial: With his clear victory (5.5 out of 7) Grischuk made the leap over the Elo barrier of 2800. With games annotated by Krasenkow, Marin, Postny, and Roiz.
• 12 Opening articles with new repertoire ideas!
Illingworth: Reti Opening – Part 2
Moskalenko: Pirc Defence 4.f4
Kuzmin: Sicilian Paulsen 7.Qd3
and more!
Review by Sagar Shah
One problem that a chess player faces when he trains is the following question: “On what phase of the game should I concentrate? Opening, middlegame or the endgame.” It happens quite often that we have worked really hard on the openings and feel confident going into a tournament. Sure enough, we get winning positions, but our technique is completely lacking. Something similar could happen with players who dedicate all their time to tactics and endgames. They are unable to get favourable positions out of the openings. Hence, on 1st of February 2015, when I sat down to work, I decided to give equal importance to all the three phases of the game. The latest issue of ChessBase Magazine, CBM 164, had just been released. I decided to work with complete dedication on everything that was given in it! Here are my findings.
World Championship 2014
To tell you the truth, I was saturated with the World Championship reporting. I followed each and every game very closely and there was nothing much left to be known in those eleven games, at least not after more than two months of the match being over. Yet there were certain things which made me go over the World Championship material presented in the magazine. Firstly CBM got its best annotators to analyze the games. They included Mihail Marin, Parimarjan Negi, Evgenvy Postny, Michael Krasenkow and Rustam Kasimdzhanov. And secondly they were able to get the views of the seconds, Radoslav Wojtaszek and Peter Heine Nielsen, on games five and eleven respectively.
Wojtaszek and Nielsen: the analysis of seconds are always captivating
because you are able to get the inside information
I must say that I found Nielsen’s analysis not so interesting because he annotated the game from the point of view of a neutral analyst rather than Carlsen’s second. But Wojtaszek was more forthcoming and revealed quite a lot of information about Anand’s preparation, why he chose the particular line and until what point was it worked out at home.
Mihail Marin covers the openings of few of the World Championship games in his video…
….but what was really fascinating was his comparing of the games played in the
World Championship match with some other classical games in which similar plans were used.
Lastly, I really liked what the editor of CBM, Rainer Knaak, had to say about the double blunder of 26.Kd2?? and 26…a4?? that happened in the sixth game of the match. He shows the following position:
Carlsen-Karjakin, Sao Paulo 2012, Black to play
Carlsen just played 46.Rd3-d5. Black can now strike with the very surprising 46…Rxb2!! 47.Nxb2 fxe4 and the rook on d5 is trapped. Instead Karjakin continued with 46…Rd8 and with great difficulties managed to draw the game. Knaak’s explanation of Carlsen’s mistakes going unpunished is very insightful:
“Why Carlsen makes such mistakes is one question. He is only human after all, is the obvious answer. But why are the mistakes not punished on the spot? I believe that Karjakin (or Anand) would have exploited the opportunity against almost any other player. With any weaker opponent one is really expecting mistakes, because that is how one gets the chance not only to save a game, but even to win it. Against a stronger opponent everyone is simply dreaming of a draw and thus it is easy to miss such opportunities.”
Qatar Masters 2014
The Qatar Masters 2014 was one of the strongest open tournaments to be ever held. Vladimir Kramnik played in an open tournament after a gap of nearly twenty years! The Chinese Yu Yangyi won it surprisingly, ahead of many big names like Anish Giri, Vladimir Kramnik, Shakhriyar Mamedyarov, MVL etc. The coverage of this tournament in CBM is excellent.
CBM was able to get Yu Yangyi to annotate his two key clashes. One was against Anish Giri in the penultimate round and the other was with Vladimir Kramnik in the last round. (picture by Maria Emelianova)
It is always wonderful to read the winner’s comments. I was impressed with the annotations of this young Chinese player. He gave a perfect balance of words and variations. The reader gets to know what was going through his mind when he made a specific move. Below is an extract of his analysis of the game against Kramnik. Of course I could not reproduce all of the annotations here, but this 10% of the comments will give you an idea of Yu Yangyi’s excellent ability to explain.
There are two more tournaments covered in depth in this issue: Petrosian Memorial and London Chess Classic. Under no circumstance should you miss Kramnik’s own annotations to his game against Hikaru Nakamura!
Kramnik on the white side against King’s Indian + his own annotations = double bonanza!
Opening Surveys
CBM 164 has 12 opening surveys. The range of openings covered is wide and there would definitely be something for each and every player out there. I was particularly impressed with the following three surveys.
Robert Ris covers the topical line with black: 1.d4 d5 2.c4 dxc4 3.e4 b5!? 4.a4 c6 5.axb5 cxb5 6.Nc3 a6!? 7.Nxb5 axb5 8.Rxa8 Bb7. This position is completely crazy and it is extremely difficult to navigate the complications, even with the help of a computer. Robert Ris does a fantastic job of trying to get the reader acquainted with all the complexities.
“Do I accurately remember all of Ris’s analysis!” Nakamura thinking over his third move in the fifth round
of the Gibraltar Masters 2015, in which he won by employing the same variation recommended by Robert Ris. [picture by John Saunders]
Martin Breutigam recommends a very sedate method of development with e3 against
the King’s Indian and the Grunfeld. According to him, it contains quite some venom.
I read Breutigam’s article on the Smyslov system against the King’s Indian Defense in CBM 126 where he recommended a system with d4, c4, Nc3, Nf3 followed by Bg5 and e3. That became one of my favourite weapons against the KID. In CBM 164 he has come up with the idea of e3 (without developing the bishop to g5). This looks harmless but on closer inspection you will see players like Mamedyarov, Morozevich and Anand scoring wins over strong players like Gelfand, Kramnik and Ragger respectively. By the way, a small note here is to delay the development of the knight to c3 so that the Grunfeld becomes less attractive for the black player!
Alexey Kuzmin analyzes the Carlsen Variation (we could call it that after the World Championship) and shows that Vishy’s Nc6 was not such a great idea. At the same time he goes through moves like Qc7, d5, d6 and also 0-0 and proves an advantage for White in all of them. Paulsen fans have something to worry about here.
All Opening Surveys in CBM 164
Illingworth: Reti Opening A11
1.c4 Nf6 2.g3 c6 3.Bg2 d5 4.Nf3 g6 5.b3 Bg6 6.Bb2 0-0 7.0-0
In the second part of his article on the double fianchetto Max Illingworth looks into the most frequently played moves 7...a5 and 7...Bg4. As he does so, the author demonstrates above all what happens in the early middlegame – what White can make out of his positions which are generally slightly in his favour.
Moskalenko: Pirc Defence B09
1.e4 d6 2.d4 Nf6 3.Nc3 g6 4.f4 Bg7 5.Nf3 0-0 6.Bd3 Nc6
In the diagram 7.0-0 is the move played most often, but as Viktor Moskalenko explains Black has absolutely no need to fear the tactical complications after 7...e5 8.fxe5 dxe5 9.d5 Nd4. And in the main variation 7.e5 dxe5 8.fxe5 Black even has two good moves: 8...Nh5 and 8...Ng4.
Kuzmin: Sicilian Defence B41
1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 a6 5.c4 Nf6 6.Nc3 Bb4 7.Qd3
The queen move was a strong surprise weapon for Carlsen against Anand, but as Alexey Kuzmin shows in his article, it is more than that. It is difficult for Black to equalise at all and it can be supposed that in the future players will deviate.
Postny: Sicilian Defence B48
1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 Qc7 6.Be3 a6 7.Qf3
Instead of 7.Qd2 and 7.Bd3, moves played thousands of time, and other continuations, this time it is 7.Qf3 which is up for debate – a move which only the 11th most frequent. But as Evgeny Postny shows, the move has potential, its main idea consisting of Qg3, because after the exchange of queens White gets a very pleasant endgame.
Havasi: French Defence C06
1.e4 e6 2.d4 d5 3.Nd2 Nf6 4.e5 Nfd7 5.Bd3 c5 6.c3 b6
The early exchange of bishops is a tried and trusted manoeuvre in the French. As Gergö Havasi demonstrates, with aggressive play White can build up some pressure, but the closed positions offer Black good chances of getting away with his plan.
Marin: French Defence C09
1.e4 e6 2.d4 d5 3.Nd2 c5 4.exd5 exd5 5.Ngf3 Nc6 6.Bb5 (cxd4/Qe7+)
If you play 6...cxd4 or 6...Qe7+ (instead of the main move 6...Bd6), you have to be prepared to exchange queens at an early stage. In his extensive article Mihail Marin refers to many Korchnoi games, but also shows the modern treatment by Vadim Zvjaginsev.
Müller: Vienna Game C26
1.e4 e5 2.Nc3
Karsten Müller’s new article is linked to his articles on the King’s Gambit: after 2...Nc6 the transposition is made with 3.f4. However, this time it is principally about 2...Bc5 (3.Nf3) and even more important - 2...Nf6 (3.g3). This way speculative sacrifices are avoided.
Ris: Queen’s Gambit Accepted D20
1.d4 d5 2.c4 dxc4 3.e4 b5 4.a4 c6 5.axb5 cxb5 6.Nc3 a6 7.Nxb5 axb5 8.Rxa8 Bb7
The 3...b5 variation is supposed to be made playable with a surprising exchange sacrifice. In his analyses Robert Ris comes to the conclusion that White can obtain a slight advantage, but in practice these positions are far from easy to play.
Gormally: Queen’s Gambit Accepted D24
1.d4 d5 2.c4 dxc4 3.Nf3 Nf6 4.Nc3 a6 5.e4 b5 6.e5 Nd5 7.a4
In Part 2 Daniel Gormally turns to the sharp lines in which Black tries to defend his extra pawn. But all these attempts are dubious. Even when the positions which are reached are okay according to the engines, in practice Black is facing grave problems.
Krasenkow: Bogo-Indian E11
1.d4 Nf6 2.c4 e6 3.Nf3 Bb4+ 4.Nbd2
Michal Krasenkow presents his own repertoire against the Bogo-Indian. In the first part he shows above all what he has up his sleeve against the present main variation 4...0-0 5.a3 Be7, namely: 6.b4, which has not been played often so far but which is very venomous.
Breutigam: King’s Indian E60
1.d4 Nf6 2.c4 g6 3.Nf3 Bg7 4.e3
As long as White has not played Nc3, Black cannot transpose to the Grünfeld Defence. But Martin Breutigam sees more in the setup he is presenting: after transpositions to the Benoni or the King’s Indian the pawn on e3 (instead of e4) also has an advantage: there is no need to defend it.
Szabo: King’s Indian E73
1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Be2 0-0 6.Bg5 Na6 7.f4 c6
In the Averbakh Variation too, ...Na6 is a common move. White then strengthens his centre with 7.f4. But as Krisztian Szabo shows in his article, Black will then attack it rapidly with ...d5. In the sharp lines a good knowledge of the theory ids advisable.
بعد ازپرداخت مبلغ در صفحه ای که مختص شما باز میشود بر روی لینک دانلود مستقیم با حجم 94 مگابایت کلیک کنید
دانلود فیلم آموزشی شطرنج ChessBase Magazin Extra 163
اختصاصی از یارا فایل دانلود فیلم آموزشی شطرنج ChessBase Magazin Extra 163 دانلود با لینک مستقیم و پرسرعت .
دانلود فیلم آموزشی شطرنج ChessBase Magazin Extra 163
نسخه اورجینال - dvd کامل
مجله معتبر شطرنج نسخه اضافی شماره 163 سایت چس بیس
شامل 3 ویدئویی آموزشی شطرنج
توسط استادان بزرگ اندری میخائیل چشین - نیکلاس پرت -رابرت ریس
ویدئوی آموزشی این شماره شامل
1 - دفاع دو اسب -آموزش وسط بازی
2- گامبی وزیر پذیرفته شده-آموزش طرح وبرنامه ریزی
3-گشایش ایتالیایی - گامبی اوانس - گامبی شاه-آموزش وسط بازی
Videotraining:
- Adrian Mikhalchishin stellt eine Variante des Zweispringerspiels im Nachzuge vor und demonstriert, wie wichtig es ist, in dieser scharfen Eröffnung die Theorie zu kennen.
- Nicholas Pert zeigt Ihnen eine eigene Partie, auf die er zurecht sehr stolz ist. Lassen Sie sich nicht entgehen, wie der schwarze König in einem schönen Angriff zur Strecke gebracht wird.
- Auf dem Höhepunkt seiner Laufbahn - London 1883 - siegte Johannes Zukertort klar vor William Steinitz. Legendär war der Pole aber auch für seine Blindpartien – manchmal sogar mehrere gleichzeitig. Robert Ris führt eine solche Partie vor, in der es aus der Eröffnung heraus zu einem schönen Mattfinale kommt.
بعد از پرداخت مبلغ مورد نظر در صفحه ای که مختص شما باز میشود بر روی لینک دانلود مستقیم پر سرعت با حجم 137 مگابایت کلیک کنید
لینک دانلود در یک فایل فشرده هم به ایمیل شما ارسال خواهد شد
لینک دانلود تا 10 روز برای شما معتبر میباشد
توجه:
منابع با زحمات زیادی تهیه و با کمترین قیمت به صورت اورجینال در اختیار شطرنجبازان عزیز کشورمان برای پیشرفت سریع قرار میگیرد برای حمایت از ما لینک دانلود را در اختیار دیگران قرار ندهید
دانلود فیلم آموزش حرفه ای شطرنج Chessbase - Master Class Volume 3 - Alexander Alekhine
اختصاصی از یارا فایل دانلود فیلم آموزش حرفه ای شطرنج Chessbase - Master Class Volume 3 - Alexander Alekhine دانلود با لینک مستقیم و پرسرعت .
full dvd
محصول 2014
فیلم آموزش حرفه ای شطرنج الکساندر آلخین 3
توسط استاد بزرگ میهایل مارین
آموزش تاکتیک با حل تمرینات تاکتیکی برای سطح متوسطه و پیشرفته
جزو بهترین پکیج آموزشی شطرنج
دیدن بازیهای زیبای دکتر الکساندر آلخین قدرت بازی تاکتیکی شما را زیاد میکند
همراه با فایل پچ و پورت ها
برای آموزش فعال سازی برنامه به سایت شطرنج رستمی مراجعه کنید
Vol.3 کلاس استاد بزرگ: الکساندر آلخین
full dvd Chessbase - Master Class Volume 3 - Alexander Alekhine-
آموزش شروع بازی - استراتژی - تاکتیک و غیره....... یک dvd بی نظیر
یکی از قابلیت های منحصر به فرد این شماره این است که استاد در طول آموزش سوالاتی از شما می پرسد که شما می توانید با نشان دادن حرکت درست قابلیت های خودتان را بسنجید که با عث پیشرفت سریع شما در تاکتیک و استراتژی - آخربازی میشود.
آلکساندر آلکساندرویچ آلخین
او در سال ۱۹۲۷ در مسکو یک مسابقه جنجالی کاپابلانکا را با ۶ برد ۳ باخت و ۲۵ تساوی شکست داد. در سال ۱۹۳۵ در کمال شگفتی ازماکس ایوه شکست خورد زیرا مصرف بیش از حد مشروب قبل از بازی بی‌ارتباط به باخت او نبود. ولی دو سال بعد در یک مسابقه انتقامی او را شکست داد و مقام قهرمانی را تا زمان مرگش حفظ کرد. او در زمان خود بزرگ‌ترین استاد بزرگ بود.
آلخین از بزرگ‌ترین شطرنج بازان حمله‌ای در طول تاریخ شطرنج شناخته میشود. او توانایی بسیاری در کاربرد ترکیب داشت و معمولاً بازیهای او بسیار پیچیده است.این محصول قدرت بازی تاکتیکی شما به طور چشمگیری زیاد میکند
این مجموعه شامل موارد زیر می باشد:
-Chessbase - Master Class Volume 3 - Alexander Alekhine
After having thoroughly enjoyed the first volumes in the Master Class series on both Bobby Fischer and Mikhail Tal, both of whom are guaranteed crowdpleasers, I was quite curious as to whom volume three would cover, and the answer was a very appropriate: Alexander Alekhine. Though Garry Kasparov has often professed his personal preference for the fourth world champion, seeing a bit of himself in his play, Alexander Alekhine's fantastic attacking skills and universal ability are legend. Once more the formula of the Master Class series is kept, with a grandmaster commenting each part of the champion's play: one on the openings, one on the middlegame, another on tactics, and finally an examination of his endgame play. Allow me to share a bit of what to expect and what I thought.
Contrary to the previous editions covering Bobby Fischer and Mikhail Tal, in this DVD, Rogozenco only presents a single video on the fourth world champion's openings, albeit a full hour in length. At first I was somewhat critical of this, preferring the logic of two or three videos, each on the player's choices as white or black, but as the presentation unfolded, the reasons became clear.
Compared to players such as Bobby Fischer, who had well-defined opening preferences, as in always 1.e4, and almost exclusively the King's Indian or the Najdorf, Alekhine was a player with incessant opening wanderlust, unable to stay put, and wanting to see the vistas they all had to offer. This curiosity led to many great innovations, whether the very defense named after him, to entire new systems to combat well-trodden paths (helping put an end to the announced 'death of chess'), and even lines he himself knew were dubious and good only for a game so long as his opponent was blindsided.
استاد بزرگ میهایل مارین
Marin's choices of games for each video are carefully done to display an important part of
the grandmaster's commentary on Alekhine, and show considerable thought went into this
process as well as the anecdotes he shares with the viewer
Oliver Reeh does his usual commendable job of selecting combinations for the viewer, each presented in video format, with recorded comments in the event of a mistake or an attractive side-variation that fails to win. Though there are twenty four of these combinations, there are a further 102 training questions for added study and pleasure. Even if you lack the skill to solve some of them, they continue to be a joy to see unfold.
Karsten Mueller brings up the rear guard with his endgame section in which he selects some choice endgames from the champion that either serve as instructive pieces for the student, or that are important milestones in Alekhine's career. In the first endgame, the reason is the former, and Mueller makes no effort to disguise this as he quickly asks you what you would do in the position, and promptly stops speaking for a few seconds, giving you the time to pause and try to work it out on your own.
آموزش کامل باز کردن فیلم های جدید ویدئوییchessbase-CBFT
1-فایل پچ را در مسیر نصب نرم افزار چس بیس 12 کپی کنید وبا run as اجرا کنید
2- پورت ها را در پوشه مخفی streams در مسیر زیر کپی کنید: به فیلم آموزشی مراجعه کنید
این مسیر پنهان میباشد
C:\Documents and Settings\"User"\Local Settings\Application Data\ChessBase\Streams جایگزین کنید.
موفق باشید
پورت و پچ را در زیر میتوانید دانلود کنید
مجلات شطرنج معتبر سایت chessbase شماره chessbase_magazin 1-153
اختصاصی از یارا فایل مجلات شطرنج معتبر سایت chessbase شماره chessbase_magazin 1-153 دانلود با لینک مستقیم و پرسرعت .
مجلات معتبر چس بیس شماره 1تا 153 بدون فایل هایی ویدئویی به غیر از مجلات شماره های بالا
chessbase_magazin 1-153
یک پکیج ارزشمند
حجم : 387 مگابایت
گزارشی کامل درباره مسابقات بزرگ جهان
علاوه بر آن، دارای مطالب آموزشی در مراحل سه گانه شطرنج(تئوری شروع بازی،دامهای شروع،حرکت به حرکت از دانیل کینگ،استراتژی،تاکتیک،آخربازی،تمرینات آموزشی)
برای باز کردن مجلات از نرم افزار chessbase یا فریتز استفاده کنید
بعد از پرداخت مبلغ در صفحه ای که مختص شما باز میشود بر روی لینک دانلود مستقیم پرسرعت با حجم387 مگابایت کلیک کنید
میتوانید لینک دانلود را کپی و با دانلود مننجر نیز دانلود کنید
لینک دانلود در فایل زیپ هم به ایمیل شما ارسال خواهد شد
مدت دانلود مجاز فایلها 10 بار به مدت 5 روز میباشد
توجه:
منابع با زحمات زیادی تهیه و با کمترین قیمت به صورت اورجینال در اختیار شطرنجبازان عزیز کشورمان برای پیشرفت سریع قرار میگیرد برای حمایت از ما لینک دانلود را در اختیار دیگران قرار ندهید