Links

This form does not yet contain any fields.
    1948 World Chess Championship 1959 Candidates 1962 Candidates 2.c3 Sicilian 2.f4 Sicilian 2011 European Team Championship 2011 Russian Championship 2012 Capablanca Memorial 2012 Chess Olympiad 2012 European Women's Championship 2012 London Chess Classic 2012 U.S. Junior Championship 2012 U.S. Women's Championship 2012 US Championship 2012 Women's World Chess Championship 2012 World Rapid and Blitz Championships 2013 Alekhine Memorial 2013 Beijing Grand Prix 2013 European Club Cup 2013 European Team Championship 2013 FIDE World Cup 2013 Kings Tournament 2013 London Chess Classic 2013 Russian Championship 2013 Tal Memorial 2013 U.S. Championship 2013 Women's World Championship 2013 World Blitz Championship 2013 World Championship 2013 World Rapid Championship 2013 World Team Championship 2014 Capablanca Memorial 2014 Chess Olympiad 2014 London Chess Classic 2014 Petrosian Memorial 2014 Rapid & Blitz World Championship 2014 Russian Team Championship 2014 Sinquefield Cup 2014 Tigran Petrosian Memorial 2014 U.S. Championship 2014 U.S. Open 2014 Women's World Championship 2014 World Blitz Championship 2014 World Championship 2014 World Junior Championships 2014 World Rapid Championship 2015 Capablanca Memorial 2015 Chinese Championship 2015 European Club Cup 2015 European Team Championship 2015 London Chess Classic 2015 Millionaire Open 2015 Poikovsky 2015 Russian Team Championship 2015 Sinquefield Cup 2015 U.S. Championship 2015 Women's World Championship KO 2015 World Blitz Championship 2015 World Cup 2015 World Junior Championship 2015 World Open 2015 World Rapid & Blitz Championship 2015 World Team Championships 2016 2016 Candidates 2016 Capablanca Memorial 2016 Champions Showdown 2016 Chess Olympiad 2016 Chinese Championship 2016 European Club Cup 2016 Isle of Man 2016 London Chess Classic 2016 Russian Championship 2016 Sinquefield Cup 2016 Tal Memorial 2016 U.S. Championship 2016 U.S. Junior Championship 2016 U.S. Women's Championship 2016 Women's World Championship 2016 World Blitz Championship 2016 World Championship 2016 World Junior Championship 2016 World Open 2016 World Rapid Championship 2017 British Championship 2017 British Knockout Championship 2017 Champions Showdown 2017 Chinese Championship 2017 Elite Mind Games 2017 European Team Championship 2017 Geneva Grand Prix 2017 Grand Prix 2017 Isle of Man 2017 London Chess Classic 2017 PRO Chess League 2017 Russian Championship 2017 Sharjah Masters 2017 Sinquefield Cup 2017 Speed Chess Championship 2017 U..S. Championshp 2017 U.S. Junior Championship 2017 Women's World Championship 2017 World Cup 2017 World Junior Championship 2017 World Rapid & Blitz Championships 2017 World Team Championship 2018 British Championship 2018 Candidates 2018 Chess Olympiad 2018 Dortmund 2018 European Championship 2018 European Club Cup 2018 Gashimov Memorial 2018 Gibraltar 2018 Grand Chess Tour 2018 Grenke Chess Classic 2018 Grenke Chess Open 2018 Isle of Man 2018 Leuven 2018 London Chess Classic 2018 Norway Chess 2018 Paris 2018 Poikovsky 2018 Pro Chess League 2018 Shenzhen Masters 2018 Sinquefield Cup 2018 Speed Chess Championship 2018 St. Louis Rapid & Blitz 2018 Tal Memorial 2018 Tata Steel Rapid & Blitz 2018 U.S. Championship 2018 Wijk aan Zee 2018 Women's World Championship 2018 World Championship 2018 World Rapid & Blitz Championship 2019 Abidjan 2019 Aeroflot Open 2019 Biel 2019 Capablanca Memorial 2019 Champions Showdown 2019 Dortmund 2019 Du Te Cup 2019 European Championship 2019 Gashimov Memorial 2019 GCT Paris 2019 GCT Zagreb 2019 Gibraltar 2019 Grand Chess Tour 2019 Grand Prix 2019 Grenke Chess Classic 2019 Karpov Poikovsky 2019 Lindores Abbey 2019 Moscow Grand Prix 2019 Norway Chess 2019 Norway Chess blitz 2019 Pro Chess League 2019 Riga Grand Prix 2019 Russian Team Championship 2019 Sinquefield Cup 2019 St. Louis Rapid & Blitz 2019 U.S. Championship 2019 Wijk aan Zee 2019 Women's Candidates 2019 World Team Championship 2020 Candidates 2020 Chess Olympics 2022 Chess Olympics 2024 Chess Olympics 22014 Sinquefield Cup 22014 U.S. Championship 22016 Chess Olympiad 22019 GCT Zagreb 22019 Wijk aan Zee 2Mind Games 2016 2Wijk aan Zee 2017 60 Minutes A. Muzychuk A. Sokolov aattacking chess Abby Marshall Abhijeet Gupta Accelerated Dragon ACP Golden Classic Adams Aeroflot 2010 Aeroflot 2011 Aeroflot 2012 Aeroflot 2013 Aeroflot 2015 Aeroflot 2016 Aeroflot 2017 AGON Agrest Akiba Rubinstein Akiva Rubinstein Akobian Akshat Chandra Alejandro Ramirez Alekhine Alekhine Defense Aleksander Lenderman Aleksandra Goryachkina Alekseev Alena Kats Alex Markgraf Alexander Alekhine Alexander Beliavsky Alexander Grischuk Alexander Ipatov Alexander Khalifman Alexander Moiseenko Alexander Morozevich Alexander Onischuk Alexander Panchenko Alexander Stripunsky Alexander Tolush Alexandra Kosteniuk Alexei Dreev Alexei Shirov Alexey Bezgodov Almasi AlphaZero Alvin Plantinga Amber 2010 Amber 2011 American Chess Magazine Amos Burn Anand Anand-Carlsen 2013 Anand-Gelfand 2012 Anand-Gelfand World Championship Match Anand-Topalov 2010 Anastasia Bodnaruk Anatoly Karpov Anders Ericsson Andrei Volokitin Andrew Martin Andrew Paulson Android apps Anish Giri Anna Muzychuk Anna Ushenina Anna Zatonskih Anti-Marshall Lines Anti-Moscow Gambit Anti-Sicilians Antoaneta Stefanova Anton Korobov Anton Kovalyov apps April Fool's Jokes Archangelsk Variation Arkadij Naiditsch Arkady Dvorkovich Arne Moll Aron Nimzowitsch Aronian Aronian-Kramnik 2012 Arthur Bisguier Arthur van de Oudeweetering Artur Yusupov Arturo Pomar Ashland University football Astrakhan Grand Prix 2010 attack attacking chess Austrian Attack Averbakh Awonder Liang Baadur Jobava Bacrot Baku Grand Prix 2014 Baltic Defense Bangkok Chess Club Open Baskaran Adhiban Bazna 2011 Becerra beginner's books Beliavsky Ben Feingold Benko Gambit Bent Larsen Berlin Defense Biel 2012 Biel 2014 Biel 2015 Biel 2017 Bilbao 2010 Bilbao 2012 Bilbao 2013 Bilbao 2015 Bilbao 2016 Bilbao Chess 2014 bishop endings Bishop vs. Knight Blackburne Blaise Pascal blindfold chess blitz blitz chess Blumenfeld Gambit blunders Bob Hope Bobby Fischer Bogo-Indian Bohatirchuk Bologan Book Reviews books Boris Gelfand Boris Spassky Borislav Ivanov Borki Predojevic Boruchovsky Botvinnik Botvinnik Memorial Branimiir Maksimovic Breyer Variation brilliancy British Championship British Chess Magazine Bronstein Bronznik Brooklyn Castle Browne Brunello Bu Xiangzhi Budapest bullet chess Bundesliga California Chess Reporter Camilla Baginskaite Campomanes Candidates 2011 Candidates 2011 Candidates 2012 Candidates 2013 Candidates 2014 Capablanca Carlsen Caro-Kann cartoons Caruana Catalan Cebalo Charles Krauthammer Charlie Rose cheating Cheparinov chess and drugs chess and education chess and marketing chess books chess cartoons chess documentaries chess engines chess history chess in fiction chess in film chess in schools Chess Informant chess lessons chess openings chess politics chess psychology chess ratings chess strategy chess variants Chess24 Chess960 ChessBase DVDs ChessBase Shows ChessLecture Presentations ChessLecture Videos ChessLecture.com ChessUSA ChessUSA blog ChessVibes ChessVideos Presentations Chigorin Variation Chinese Chess Championship Chithambaram Aravindh Christian faith Christiansen Christmas Colin Crouch Colle combinations Commentary computer chess computers correspondence chess Corsica Cristobal Henriquez Villagra Cyrus Lakdawala Dan Parmet Danailov Daniel Parmet Daniil Dubov Danny Kopec Danzhou Danzhou 2016 Danzhou 2017 Dave MacEnulty Dave Vigorito David Bronstein David Howell David MacEnulty David Navara Davies Deep Blue Deeper Blue defense Dejan Antic Delchev Denis Khismatullin DGT errors Ding Liren Dirk Jan ten Geuzendam Dmitry Andreikin Dmitry Gurevich Dmitry Jakovenko Dominic Lawson Donald Trump Dortmund 2010 Dortmund 2011 Dortmund 2012 Dortmund 2012 Dortmund 2013 Dortmund 2014 Dortmund 2015 Dortmund 2016 Dortmund 2017 Doug Hyatt Dragoljub Velimirovic draws dreams Dreev Dunning-Kruger Effect Dutch Defense DVD Reviews DVDs Dvoirys Dvoretsky Easter Edouard Efimenko Efstratios Grivas Eltaj Safarli Emanuel Lasker Emory Tate en passant endgame studies endgames Endgames English Opening Ernesto Inarkiev Erwin L'Ami Esserman Etienne Bacrot European Championship 2015 European Club Cup 2012 European Club Cup 2014 European Individual Championship 2012 Evgeni Vasiukov Evgeny Bareev Evgeny Najer Evgeny Sveshnikov Evgeny Tomashevsky Exchange Ruy expertise Fabiano Caruana Falko Bindrich farce FIDE FIDE Grand Prix FIDE politics FIDE Presidential Election FIDE ratings Fier fighting for the initiative Finegold Fischer Fischer-Spassky 1972 football Francisco Vallejo Pons Fred Reinfeld French Defense Fritz 15 Ftacnik Gadir Guseinov Gajewski Gaprindashvili Garry Kasparov Gashimov Gashimov Memorial 2017 Gata Kamsky Gawain Jones Gelfand Gelfand-Svidler Rapid Match Geller Geneva Masters Genna Sosonko Georg Meier Georgios Makropolous GGarry Kasparov Gibraltar 2011 Gibraltar 2012 Gibraltar 2013 Gibraltar 2014 Gibraltar 2015 Gibraltar 2016 Gibraltar 2017 Giorgios Makropoulos Giri Go Grand Chess Tour Grand Chess Tour 2017 Grand Chess Tour Paris 2017 Grand Prix 2014-2015 Grand Prix Attack Greek Gift sacrifice Grenke Chess Classic 2013 Grenke Chess Classic 2015 Grenke Chess Classic 2017 Grinfeld Grischuk Grob Gruenfeld Defense Grünfeld Defense Gukesh Dommaraju Gulko Gunina Guseinov Gustafsson Gyula Sax Hannes Langrock Hans Berliner Hans Ree Harika Dronavalli Hastings Hawaii International Festival Haworth Hedgehog helpmates Hennig-Schara Gambit Henrique Mecking HHou Yifan highway robbery Hikaru Nakamura Hilton Hjorvar Gretarsson Hort Horwitz Bishops Hou Yifan Houdini Houdini 1.5a Howard Staunton humor Humpy Koneru Ian Nepomniachtchi Icelandic Gambit Ignatius Leong Igor Kovalenko Igor Kurnosov Igor Lysyj Igors Rausis Iljumzhinov Ilya Makoveev Ilya Nyzhnyk Imre Hera Informant Informant 113 Informant 114 Informant 115 Informant 116 Informant 117 Informant 118 Informant 119 Informant 120 Informant 121 Informant 122 Informant 124 Informant 125 Informant 126 Informant 127 Informant 128 Informant 129 Informant 130 Informant 131 Informant 132 Informant 133 Informant 134 Informant 135 insanity Inside Chess Magazine Ippolito IQP Irina Krush Irving Chernev Ivan Bukavshin Ivan Sokolov Ivanchuk J. Polgar Jacek Oskulski Jacob Aagaard Jaenisch Jaideep Unudurti Jakovenko James Tarjan Jan Gustafsson Jan Timman Jan-Krzysztof Duda Jay Whitehead Jeffery Xiong Jennifer Yu Jeremy Silman Jim Slater Jimmy Quon Joe Benjamin Joel Benjamin John Burke John Cole John Grefe John Watson Jon Lenchner Jon Ludwig Hammer Jonathan Hawkins Jonathan Speelman Joop van Oosterom Jorden Van Foreest Jose Diaz Jose Raul Capablanca Ju Wenjun Judit Polgar Julio Granda Zuniga junk openings Kaidanov Kaido Kulaots Kalashnikov Sicilian Kamsky Karen Sumbatyan Karjakin Karpov Karsten Mueller Kasimdzhanov Kasparov Kateryna Lagno Kavalek Keanu Reeves Ken Regan Keres KGB Khalifman Khanty-Mansiysk Grand Prix Kim Commons king and pawn endings King's Gambit King's Indian King's Tournament 2010 Kings Tournament 2012 Kirsan Ilyumzhinov KKing's Gambit KKing's Indian Klovans Komodo Komodo 11 Komodo 12 Korchnoi Kramnik Krishnan Sasikiran Kunin Lajos Portisch Larry Christiansen Larry Evans Larry Kaufman Larry Parr Lasker Lasker-Pelikan Latvian Gambit Laurent Fressinet Laznicka Lc0 Le Quang Liem LeBron James Leinier Dominguez Leko Leon 2017 Leonid Kritz lessons Leuven Rapid & Blitz Leuven Rapid & Blitz 2017 Lev Psakhis Levon Aronian Lilienthal Linares 2010 Linder Liviu-Dieter Nisipeanu Loek van Wely Lombardy London 2009 London 2010 London 2011 London Grand Prix London System Lothar Schmid Luke McShane Macieja Magnus Carlsen Main Line Ruy Malakhov Malcolm Gladwell Malcolm Pein Mamedyarov Marc Arnold Marc Lang Marin Mariya Muzychuk Mark Crowther Mark Dvoretsky Mark Glickman Mark Taimanov Markus Ragger Marshall Marshall Gambit Masters of the Chessboard Mateusz Bartel Matthew Sadler Maurice Ashley Max Euwe Max Judd Maxim Matlakov Maxim Rodshtein Maxime Vachier-Lagrave McShane Mega 2012 mental malfunction Mesgen Amanov Michael Adams Miguel Najdorf Mikhail Antipov Mikhail Botvinnik Mikhail Golubev Mikhail Osipov Mikhail Tal Mikhail Zinar Mikhalchishin Miles Mind Games 2016 Minev miniatures Miso Cebalo MModern Benoni Modern Modern Benoni Moiseenko Morozevich Morphy Movsesian Müller Murali Karthikeyan music Nadareishvili Naiditsch Najdorf Sicilian Nakamura Nana Dzagnidze Nanjing 2010 Natalia Pogonina Navara NDame football Negi Neo-Archangelsk Nepomniachtchi New In Chess Yearbook 104 New York Times NH Tournament 2010 Nigel Short Nihal Sarin Nikita Vitiugov Nikolai Rezvov Nils Grandelius Nimzo-Indian Nino Khurtsidze NNotre Dame football Nodirbek Abdusattarov Nona Gaprindashvili Norway Chess 2013 Norway Chess 2014 Norway Chess 2015 Norway Chess 2016 Norway Chess 2017 Notre Dame basketball Notre Dame football Notre Dame Football Notre Dame hockey Nov. 2009 News Nyback Nyzhnyk Oleg Pervakov Oleg Skvortsov Olympics 2010 Open Ruy opening advice opening novelties Openings openings Or Cohen P.H. Nielsen Pal Benko Palma Grand Prix 2017 Parham Maghsoodloo Parimarjan Negi Paris Grand Prix Paris Rapid & Blitz passed pawns Paul Keres Paul Morphy Paul Rudd Pavel Eljanov pawn endings pawn play Pawn Sacrifice pawn structures Pentala Harikrishna Pesotskyi Peter Heine Nielsen Peter Leko Peter Svidler Petroff Philadelphia Open Philidor's Defense philosophy Phiona Mutesi Pirc Piterenka Rapid/Blitz Polgar Polgar sisters Polugaevsky Ponomariov Ponziani Potkin poultry Powerbook 2011 Praggnanandhaa Rameshbabu Prague Chess Train problems progressive chess prophylaxis Puzzle Rush Qatar Masters 2015 QGD Tartakower QQueen's Gambit Accepted queen sacrifices Queen's Gambit Accepted Queen's Gambit Declined Queen's Indian Defense Rabat blitz 2015 Radjabov Radoslaw Wojtaszek Ragger rapid chess Rapport Rashid Nezhmetdinov Rathnakaran Kantholi rating inflation ratings Ray Robson Raymond Smullyan Regan Reggio Emilia 2010 Reggio Emilia 2011 Reshevsky Reti Reuben Fine Rex Sinquefield Reykjavik Open 2012 Reykjavik Open 2017 Richard Rapport Richard Reti Robert Byrne robot chess Robson Roman Ovetchkin rook endings RReggio Emilia 2011 rrook endings RRuy Lopez RRuy Lopez sidelines Rubinstein Rubinstein French Rudolf Loman Rudolf Spielmann rules Ruslan Ponomariov Russian Team Championship Rustam Kasimdzhanov Ruy Lopez Ruy Lopez sidelines Rybka Rybka 4 S. Kasparov sacrifices Sadler Saemisch Sakaev Sam Collins Sam Sevian Sam Shankland Samuel Reshevsky Sao Paulo/Bilbao 2011 Sao Paulo/Bilbao 2012 satire Savchenko Savielly Tartakower Schliemann Scotch Four Knights Searching for Bobby Fischer Seirawan self-destruction Sergei Tiiviakov Sergei Tkachenko Sergey Erenburg Sergey Fedorchuk Sergey Karjakin Sergey Kasparov Sergey Shipov Sevan Muradian Shakhriyar Mamedyarov Shamkir 2015 Shamkir 2016 Shamkir 2017 Shankland Sharjah Grand Prix 2017 Shenzhen 2017 Shipov Shirov Short Shreyas Royal Sicilian Sinquefield Cup sitzfleisch Slav Smith-Morra Gambit Smyslov So-Navara Spassky spectacular moves Speelman sportsmanship Spraggett St. Louis Chess Club St. Louis Invitational St. Louis Rapid and Blitz 2017 stalemate Staunton Stephen Hawking Stockfish Stockfish 4 Stonewall Dutch Suat Atalik Super Bowl XLIV Susan Polgar Sutovsky Sveshnikov Sveshnikov Sicilian Svetozar Gligoric Svidler Svidler-Shankland match sweeper sealer twist Swiercz tactics Tactics Taimanov Tal Tal Memorial 2009 Tal Memorial 2010 Tal Memorial 2011 Tal Memorial 2012 Tal Memorial 2012 Tanitoluwa Adewumi Tarjan Tarrasch Tarrasch Defense Tashkent Tashkent Grand Prix Tbilisi Grand Prix 2015 TCEC TCEC Season 10 TCEC Season 11 TCEC Season 12 TCEC Season 13 TCEC Season 14 TCEC Season 15 TCEC Season 8 TCEC Season 9 TED talks Teimour Radjabov Terekhin The Chess Players (book) The Simpsons The Week in Chess Thessaloniki Grand Prix Three knights Tibor Karolyi Tigran Gorgiev Tigran Petrosian Tim Krabbé time controls time trouble Timman Timur Gareev Timur Gareyev Tomashevsky Tony Miles Topalov traps Tromso Olympics 2014 TTCEC Season 14 TWIC Tyler Cowen types of chess players Ufuk Tuncer Ultimate Blitz Challenge underpromotion Unive 2012 University of Notre Dame upsets US Championship 2010 US Championship 2011 US Chess League USCF ratings USCL V. Onischuk Vachier-Lagrave Valentina Gunina Vallejo value of chess van der Heijden Van Perlo van Wely Varuzhan Akobian Vasik Rajlich Vasily Smyslov Vassily Ivanchuk Vassily Smyslov Velimirovic Attack Vera Menchik Veresov Veselin Topalov video videos Vidit Gujrathi Vienna 1922 Viktor Bologan Viktor Korchnoi Viktor Moskalenko Vincent Keymer Viswanathan Anand Vitaly Tseshkovsky Vitiugov Vladimir Fedoseev Vladimir Kramnik Vladimir Tukmakov Vladislav Artemiev Vladislav Kovalev Vladislav Tkachiev Vlastimil Hort Vlastimil Jansa Vugar Gashimov Vugar Gashimov Memorial Walter Browne Wang Hao Wang Yue Watson Wei Yi Welcome Wesley Brandhorst Wesley So Wijk aan Zee 1999 Wijk aan Zee 2010 Wijk aan Zee 2011 Wijk aan Zee 2012 Wijk aan Zee 2013 Wijk aan Zee 2014 Wijk aan Zee 2015 Wijk aan Zee 2016 Wijk aan Zee 2017 Wil E. Coyote Wilhelm Steinitz William Golding William Lombardy William Vallicella Willy Hendriks Winawer French Wojtkiewicz Wolfgang Uhlmann Women's Grand Prix Women's World Championship World Champion DVDs World Championship World Cup World Cup 2009 World Cup 2011 World Cup 2011 World Junior Championship World Senior Championship WWesley So WWijk aan Zee 2012 Xie Jun Yasser Seirawan Yates Yermolinsky Yevseev Yoshiharu Habu Yu Yangyi Yuri Averbakh Yuri Razuvaev Yuri Vovk Yuri Yeliseyev Yuriy Kuzubov Zaitsev Variation Zaven Andriasyan Zhao Xue Zhongyi Tan Zug 2013 Zukertort System Zurab Azmaiparashvili Zurich 1953 Zurich 2013 Zurich 2014 Zurich 2015 Zurich 2016 Zurich 2017
    « The Daily Update: Poikovsky, Havana | Main | The World's Worst Opening »
    Wednesday
    Jun092010

    A Fun Puzzle From Ken Regan - With Hints

    This is the fascinating position first presented yesterday, with Black to move. (There are hints below, so if you don't want to see them, go to the original post or don't look below the diagram!)

    Here are IM Ken Regan's hints:

    1. Can Black get away with the pawn snatch 1...Qxb2---?  White has a terrifying reply, but can Black survive it?
    2. What happens if White plays h3 or Nd4 after the terrifying move?  Or h3 right away?
    3. Is 1...Qxb2
    Black's best move in this position?  Is this a case where risky Pawn-grabbing is the only safe policy?

    I'll leave the comments open to anyone whose remarks aren't engine-based. Happy analysing!

    PrintView Printer Friendly Version

    EmailEmail Article to Friend

    Reader Comments (15)

    1) After Qxb2, the scary move looks to me to be Ne7+ (which I analysed as winning when you had it as white to play in original post). Then Kh7, Bxg6, fxg6 doesn't seem to clear and with the black threat on f2, maybe white has to play Rf1. But that seems to run into the queen exchange by Qe5 (threatening h2). This might be better for black with the extra pawn on the c-file and white's static king.
    2) Not looked at h3 (will do and get back to you)
    3) First move I looked at for black was Bxf5 to eliminate the dangerous knight, but after Bxf5, Nf6, white has the nice move h4 which seems to be winning. Next I looked at is Kh7, but after Nd4, Bxc2, Qxc2, Kg8 then Qf5, the knight on g4 is a goner so I would say Qxb2 looks good so far. Will look more tomorrow

    June 9, 2010 | Unregistered CommenterDr W

    After 1... Qxb2 I would guess that 2. Qf8+ is the "terrifying response" since 2... Kxf8 3. Rd8# follows. However, after 2... Kh7 it isn't clear how White can effectively follow up since the Black queen can retreat ot g7 (if the knight on f5 moves) or h8 in defense. Also, White has a bishop hanging on c2 and back rank difficulties keeping his rook at home. Looks like Black "survives" if he takes the pawn since the White attach is too slow.

    June 9, 2010 | Unregistered CommenterWildman

    I sort of like Rd8+, and the idea is to play Rh8+ followed by Qf8+ and Qg7. But the problem is that the Queen covers h8. So all of the other ideas in part three seem to be blocking the long diagonal so that you can play Rh8.

    I haven't looked deeper than that, but white does have back rank issues to worry about, so my first feeling is that it doesn't work since Ra1 would seem to win for black, but that was just after 5 minutes.

    I could be totally wrong too :)

    June 10, 2010 | Unregistered CommenterKyle Askine

    Upon further review, Qf8+ first is simply better in every way.

    June 10, 2010 | Unregistered CommenterKyle Askine

    Thoughts on the initial position: White has lots of threats. For one, there's Nxh6+ followed by Bxg6, when the bishop is invulnerable due to the fork Qc4+. There's also the threat of Ne7+, eliminating the Bg6 and further exposing the black king. Finally, Black's back rank is vulnerable; if the Queen leaves, there's Qf8+ or Rd8+. I looked at this for a long time yesterday and decided I'd play 1...Kh7, avoiding the various threats. White can follow with 2.Nd4 or 2.Ne7, after which 2...Bxc2 3.Qxc2+ Kg8(g7) is better for White, but I don't see anything immediately crushing (although I would not be surprised if I missed something that is).

    Maybe Black can get away with Qxb2, though. 1...Qxb2 2.Qf8+ Kh7 and now if White tries 3.Ne7, threatening Qxf7+ and mate on g8, Black can defend with 3...Qg7. What if White plays h3, though? After 1...Qxb2 2.h3, 2...Qxc2 is impossible due to 3.Qf8+ and mates. The Ng4 cannot move due to 3.Qf8+ followed by 3.Qxh6+ and 4.Rd8#. Therefore 2...Bxf5 seems forced and good after 3.Bxf5 Nxf2 (not 3...Qxf2+? 4.Qxf2 Nxf2 5.Rf1 and the knight is trapped). But what if White inserts 2.Qf8+ Kh7 3.h3? Now 3...Bxf5 is impossible, but there is another defense: 3...Qh8! 4.Qxh8+ Kxh8 5.hxg4 Rxc2 6.Nxh6 with what looks like a winning endgame for Black.

    In conclusion, it looks like Black can get away with ...Qxb2; the Queen generates threats and guards key squares from b2. I doubt I'd have the stones to play it in a game, though!

    June 10, 2010 | Unregistered CommenterDan Malkiel

    i'm thinking qxb7 rb1 qf6 (qxr bxq ra1 qc2 seems to hold and there may be something better) qf8+ kh7 ne7 and the mate is hard to stop on g8.

    June 10, 2010 | Unregistered Commentertim

    i knew there was an oops and probably still is with this: qxb2 (not rb1 because you need the rook to end up on d7 with check) qf8+ kh2 ne7 qg7 (that's what i missed in the last post) nxg6

    June 10, 2010 | Unregistered Commentertim

    Eh, are we having a blind moment for some reason lol. For Q1, how is Qxb2 not a instant loss for Black.

    2. Qf8+, Kh7 3. Q7#. The knight's g7! O^o

    June 10, 2010 | Unregistered CommenterMrriddler

    Oh f-it, I'm being blind, nvm lol. Teach me not to jump the gun. Neat trick!

    June 10, 2010 | Unregistered CommenterMrriddler

    Good start, fellas! The "terrifier" is meant to be 2.Qf8+. In reply specifically to Dan Malkiel, after 1...Qxb2 2.Qf8+ Kh7 3.h3 Qh8 4.Qxh8+ Kxh8, White has a strong Zwischenzug (in-between move, while still attacking Black's Knight). Look instead at Move 3 for a "Zwisch" of Black's own, and ditto after 1...Qxb2 2.h3.

    After the "safe" 1...Kh7, you're right to consider moves by White's Knight---look at some other ones too...

    June 10, 2010 | Unregistered CommenterKenneth W. Regan

    Sorry for the triplet, Dennis, but I thought I should at least contribute something substantive. Feel free to delete earlier posts (or not to show my patzer-like first impressions) :P.

    The most interesting continuation seem to be what happens after 1...Qxb2 2. Qf8+, Kh7. Seems people already looked at it, so this makes it easier for me hehe. The queen, bishop and rook can't move at risk of dropping material or mate so that leaves the knight. (Ok, h3 is possible, but I can't follow that so if that's the best continuation... then I've no hope...)

    Ne7 threatens Qg8 mate but Black has the Qg7 retreat if nothing else so he'd have gotten away with the pawn grab. Or is there a tailend sting somewhere that I can't see? Dan's Nd4 seems to be the best other choice and I think he got most/all of it! It keeps the Black queen from coming back and defends the c2 bishop so Black has to take back with the bishop instead:

    3.Nd4, Bxc2 (I tried to find his Qxc2+, but that's an illegal move, I assume he meant Qxf7!) 4. Qxf7+, Kh8. I thought wrongly(again) that White had a win with 5. Rd8#!!! but then I saw that the knight's blocking the way. White doesn't have time for anything but a check or mate threat since his rook is hanging and mate's being threatened on the backrow. I tried Ne6 and Nf5 but that doesn't seem to work since g7 is again covered by the Black queen. So best I got was draw by repetition for White.

    1...Qxb2 2. Qf8+, Kh7. 3.Nd4, Bxc2 4.Qxf7+, Kh8 5. Qf8+, Kh7 6. Qf7+ etc...

    Well, is a draw for white good enough a refute for Qxb2?

    June 10, 2010 | Unregistered CommenterMrriddler

    Ken: Of course - after 1...Qxb2 2.Qf8+ Kh7 3.h3 Qh8? 4.Qxh8+ Kxh8 5.Bb1 wins for White. Black must play 3...Ra8 4.Qxa8 (4.Qc5 Ra2 =/+) Qxc2 5.Rf1 (5.Qf3 Ne5 -+) Qxf5 6.hg Qxg4. White will win the c-pawn and a draw seems likely. If White goes for 2.h3, I missed 2...Qe5, which looks good for Black.

    It looks like Black has to take the pawn because my original intention 1...Kh7? simply loses to 2.Qd4.

    What a rich position!

    June 11, 2010 | Unregistered CommenterDan Malkiel

    Oops, no it doesn't! 1...Kh7 2.Qd4? Qxb2 with the x-ray. I still don't see what's wrong with 1...Kh7.

    June 11, 2010 | Unregistered CommenterDan Malkiel

    Good, you (Dan and all) found the flashy---and needed---reply 3...Ra8! (after 1...Qxb2 2.Qf8+ Kh7 3.h3).! It is totally fine to assess the resulting position as a draw, even if Black loses the c-pawn. Which is not a given---Black sometimes has tricks with ...c6! in positions where Qxc6 is met by ...Be4 with a fork on g2.

    This is one of four interesting qualitative decisions that animate this position along with the tactics. The second is reached after 1...Qxb2 2.Qf8+ Kh7 3.Nd4 and your 3...Bxc2. Here I must admit my own assessment was just "Qxf7+ and Nxc2 and Black is gonna get mated"---and I didn't even include this in the PGN file I sent Dennis. It's not that bad for Black, and White has to be accurate, but look a little further and see if you agree at least with a verdict that Black is in unwelcome trouble. A different Black reply to 3.Nd4 leads to the last exchange of flashy moves I've found in the position---and these two have a nifty symmetry!

    The third comes up after 1...Kh7. Try 2.Ng3! First see what happens if Black plays 2...Bxc2? So Black's Bishop must stand its ground on g6, and needs support. Thus 2...Qb6 3.Bxg6+ Qxg6, then 4.h3 Nf6, and what do you think about the position?

    The fourth occurs after a line that wasn't included in a hint, but now that you've found the idea Bb1! in one thematic line, try it earlier in others. Comparing this to the third is the issue my questions in "hint 3." are driving at.

    Thanks for the props, and enjoy further! ---Ken R.

    June 12, 2010 | Unregistered CommenterKenneth Regan

    This was fun.

    June 13, 2010 | Unregistered CommenterKenneth Chen

    PostPost a New Comment

    Enter your information below to add a new comment.
    Author Email (optional):
    Author URL (optional):
    Post:
     
    Some HTML allowed: <a href="" title=""> <abbr title=""> <acronym title=""> <b> <blockquote cite=""> <code> <em> <i> <strike> <strong>