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Insane chess - puzzle 4

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  • Insane chess - puzzle 4

    White to move.
    Skype chess coaching? Send a message!
    Ever heard of The Hook and Ladder trick? Please refer to the famous game by Andriej Hook and James Ladder.
    Play as if you didn't understand chess. People always fear what they don't understand.

  • #2
    Any takers?
    Skype chess coaching? Send a message!
    Ever heard of The Hook and Ladder trick? Please refer to the famous game by Andriej Hook and James Ladder.
    Play as if you didn't understand chess. People always fear what they don't understand.

    Comment


    • #3
      OK. I'll take one step: 1.b4! and advice not to take this poisonous morsel...
      There are only three kinds of chessplayers: Those who can count and those who cannot.

      Comment


      • #4
        but what if black takes?
        Skype chess coaching? Send a message!
        Ever heard of The Hook and Ladder trick? Please refer to the famous game by Andriej Hook and James Ladder.
        Play as if you didn't understand chess. People always fear what they don't understand.

        Comment


        • #5
          Oh my, a brave move indeed!

          Then we will seize the b-line with 2.Rb1! and after something like 2...Bxd2 3.Nxd2 Ng6
          begin to sneak our queen on the b-file as well with 4.Qc1 Nf4 5.Bxf4 exf4 6.Qb2 ... and now we are firmly in control.

          After both 6...c6 or 6...b6 the move 7.Bxa6! makes black's life very, very difficult.
          There are only three kinds of chessplayers: Those who can count and those who cannot.

          Comment


          • #6
            To sum up some lines:

            position after 1. b4 Bxb4 2. Rb1 Bxd2 3. Nxd2 Ng6 4. Qc1 Nf4 5. Bxf4 exf4 6. Qb2 c6 7. Bxa6
            white is winning


            1. b4 Bxb4 2. Rb1 Bxd2 3. Nxd2 f5 4. c3 fxe4 (or Bxa2) 5. Rxb7
            white is winning

            ...but those defences wouldn't be accurate. If:

            position after 1. b4 Bxb4 2. Rb1 Bxd2 3. Nxd2 Bxa2 4. Rb2 Nc6 5. c3 Rxd2 6. Bxd2 Bc4 7. Bxc4 Qxc4 8. Bxh6 gxh6 9. Qg4+ Kb8
            white would be slightly better/better, but the attack would be over and it'd be a long way to secure that advantage. On top of that, look how it is in fact easy to defend, black just exchanges everything. There are also some lines with Qe8/Nf7/Bd7 as a defensive measures, and they also offer rock-hard resistance. Perhaps in faster games 1. b4 bxb4 2. Rb1 would indeed work, but we're looking for the best of the best of the best. Any ideas?
            Last edited by stachu71; 06-03-2014, 05:10 PM.
            Skype chess coaching? Send a message!
            Ever heard of The Hook and Ladder trick? Please refer to the famous game by Andriej Hook and James Ladder.
            Play as if you didn't understand chess. People always fear what they don't understand.

            Comment


            • #7
              The line you presented: 3...Bxa2 4.Rb2 Nc6 5.c3 etc, is good enough for a white advantage, but clearly better is 5.Bd3!
              Now white has a clear plan of Qa1,Rfb1 and dangerous, winning attack. For instance:

              5.Bd3 Be6 6.Qa1 Rxd3 7.cxd3 Qg6 8.Rfb1 Bxh3 9.g3 Nd8 10.Rxb7! Nxb7 11.Qxa6 etc. white is winning.

              However, I see that this plan of 1.b4 Bxb4 2.Rb1, although winning, is not insane enough for Stachu .
              So I leave it to more insane people to discover the correct solution,,,
              There are only three kinds of chessplayers: Those who can count and those who cannot.

              Comment


              • #8
                Originally posted by mrmip View Post
                ...but clearly better is 5.Bd3!
                Yes, I missed that move. However

                position after 1. b4 Bxb4 2. Rb1 Bxd2 3. Nxd2 Nc6 4. c3 Qe8 5. Qc2 Rd6 6. Qb2 Nd8 7. c4 Qg6 8. Kh1 Bd7 9. c5 Re6 10. Bc4 Re7 11. Bxa6 Bc6 12. Bb5 f5 13. Bxc6 Qxc6 14. Bg5 Re6 15. f3 fxe4 16. Nxe4 Nhf7 17. Bh4 h6
                white is slightly better (about one pawn) due to activity and b-file battery.
                Skype chess coaching? Send a message!
                Ever heard of The Hook and Ladder trick? Please refer to the famous game by Andriej Hook and James Ladder.
                Play as if you didn't understand chess. People always fear what they don't understand.

                Comment


                • #9
                  In the position on the first diagram indeed 1. b4 is the best move, and this is a clearance sacrifice making Rb1 stronger. But, before we play Rb1, we need to play another clearance sacrifice (actually it's a double clearance sacrifice) with 2. c3, which is opening the doors for the queen (Qa4) and the second rook (Rfc1). In other words, those three pawns (since the one on a2 will also fall) block more than help.
                  So we have the following:

                  position after 1. b4 Bxb4 2. c3 Bxc3 3. Rb1

                  One line goes like this (and 3. Bxa2 appears to be the best defensive try):

                  position after 1. b4 Bxb4 2. c3 Bxc3 3. Rb1 Bxa2 4. Rxb7 Kxb7 5. Qa4 Rd6 6. Rc1 Bxd2 7. Nxd2 Rb8 8. Qa5 Ng6 9. Nc4 Rc6 10. Qxa2 Ka8 11. Ra1 Qe6 12. Qa4 Nf4 13. Bf1
                  white is winning

                  But, there are many drawing lines after 3. Bxa2, some of them go like this:

                  position after 1. b4 Bxb4 2. c3 Bxc3 3. Rb1 Bxa2 4. Rxb7 Kxb7 5. Qa4 Rd6 6. Rc1 Bxd2 7. Nxd2 Kc8 8. Bxa6+ Kd8 9. Nc4 Bxc4 10. Bxc4 Qe8 11. Bb5 c6 12. Qa8+ Kd7 13. Qb7+ Ke6 14. Bc4+ Nd5 15. Bc5 Qd7 16. Qb6 Rd8 17. Ra1 Nf5 18. Ra7 Qe8 19. exf5+ Kxf5 20. Qb1+ Ke6 21. Bxd6 Rxd6 22. Rxg7 Rd7 23. Rxh7 Rxh7 24. Qxh7 Qf7 25. Qxf7+ Kxf7 26. g4 Ke6 27. h4 f5 28. f3 e4 29. gxf5+ Kxf5 30. fxe4+ Kxe4 31. Bxd5+ cxd5 32. h5 Ke5 33. h6 Kf6 34. h7 Kg7 35. Kf2 d4 36. Ke2 d3+ 37. Kxd3 Kxh7
                  draw?

                  position after 1. b4 Bxb4 2. c3 Bxc3 3. Rb1 Bxa2 4. Rxb7 Kxb7 5. Qa4 Rd6 6. Rc1 Bxd2 7. Nxd2 Rb8 8. Qa5 Nc8 9. Ra1 Ra8 10. Rxa2 Nb6 11. Bxa6+ Kb8 12. Ra3 Rc6 13. Qb4 Ng8 14. Nb3 Ne7 15. Nc5 Nc8 16. Bb5 Rxc5 17. Rxa8+ Kxa8 18. Bxc5 Kb7 19. Qa5 Qe6 20. Ba6+ Kb8 21. Qb4 Qc6 22. Bb5
                  black is advised to take a draw

                  1. b4 Bxb4 2. c3 Bxc3 3. Rb1 Bxa2 4. Rxb7 Kxb7 5. Qa4 Rd6 6. Rc1 Bxd2 7. Nxd2 Ra8 8. Qb4+ Rb6 9. Rxc7+ Kxc7 10. Qxb6+ Kc8 11. Bxa6+ Rxa6 12. Qxa6+ Kd7
                  black is advised to take a draw
                  However, I can guarantee that 99 times out of 100 black will go wrong trying to defend this. The 'going wrong potential' if 1. b4 Bxb4 2. Rb1 was to be played is indeed high, but against stronger opponents it just may not be enough.
                  Let's just check the defence that worked when 1. b4 Bxb4 2. Rb1 was to be played:

                  1. b4 Bxb4 2. c3 Bxc3 3. Rb1 Nc6 4. Qa4
                  white is winning. Nc6 is too slow, as the queen is already ready to assist with king annihilation.
                  Skype chess coaching? Send a message!
                  Ever heard of The Hook and Ladder trick? Please refer to the famous game by Andriej Hook and James Ladder.
                  Play as if you didn't understand chess. People always fear what they don't understand.

                  Comment


                  • #10
                    And one more thing: In general, the tactical approach in the position on the first diagram is:
                    1. very rare and in most cases used in positions with oposite-side castling.
                    2. such that we're going to use our opponent pieces to clear the path for us, to speed-up the hunt.
                    Skype chess coaching? Send a message!
                    Ever heard of The Hook and Ladder trick? Please refer to the famous game by Andriej Hook and James Ladder.
                    Play as if you didn't understand chess. People always fear what they don't understand.

                    Comment


                    • #11
                      However, I can guarantee that 99 times out of 100 black will go wrong trying to defend this. The 'going wrong potential' if 1. b4 Bxb4 2. Rb1 was to be played is indeed high, but against stronger opponents it just may not be enough
                      Ahhah! So the insanity here was that a line exists where 99 out of 100 opponents will go wrong. But for one of them (Strongest?) there is multiple ways to draw .

                      Credit is also given to 1.b4 Bxb4 2.Rb1 line except against 'stronger opponents', when it may not win.
                      For sanity's sake I must put on my shiny white armour of truth to defend further 'my' line.

                      Here's the claimed 'refutation' of the line:
                      position after 1. b4 Bxb4 2. Rb1 Bxd2 3. Nxd2 Nc6 4. c3 Qe8 5. Qc2 Rd6 6. Qb2 Nd8 7. c4 Qg6 8. Kh1 Bd7 9. c5 Re6 10. Bc4 Re7 11. Bxa6 Bc6 12. Bb5 f5 13. Bxc6 Qxc6 14. Bg5 Re6 15. f3 fxe4 16. Nxe4 Nhf7 17. Bh4 h6
                      white is slightly better (about one pawn) due to activity and b-file battery.
                      I concur up to the move 8. Kh1, when 8. Kh2 may actually be better - see later.

                      The actual 'fault' in the analysis is 10. Bc4 (?), which leads only to slight plus for white. Significantly better is 10.Nc4! with idea of 11.Na5 putting pressure to b7 and c6.
                      An example line goes:
                      1. b4 Bxb4 2. Rb1 Bxd2 3. Nxd2 Nc6 4. c3 Qe8 5. Qc2 Rd6 6. Qb2 Nd8 7. c4 Qg6 8. Kh1 Bd7 9. c5 Re6 10. Nc4 Bc6 11. f3 f5 12. Na5 fxe4 { Had white played 8. Kh2 then now 13. Bxa6! would be crushing }
                      13. Nxc6 Rxc6 14. fxe4 Rf6 15. Bf3 ... and white is clearly winning.

                      All in all I think black's best bet for survival is to leave the b-pawn be and try to proceed with his own plans: 1.b4! f5!?...
                      There are only three kinds of chessplayers: Those who can count and those who cannot.

                      Comment


                      • #12
                        Originally posted by mrmip View Post
                        Ahhah! So the insanity here was that a line exists where 99 out of 100 opponents will go wrong. But for one of them (Strongest?) there is multiple ways to draw .
                        Yes, that is precisely what I meant. If you risk more you:
                        1. give yourself more chances to win,
                        2. give your opponent more chances to go wrong,
                        3. give yourself more chances to go wrong, too, but this is exactly why we practice it here. I wrote about a quality of a move as a function of time (I also showed a graph, it looks like a sin(x)) to show that what goes up (the quality) must also go down. Using this knowledge (looking for the most forced lines so the attacker would have the calculation simplified, and the defender would have the toughest time [defending is not the same as attacking in terms of pressure, I hope we agree on that]) may bring us the advantage, but..........and we go back to the beginning of a circle. And to break that circle, we simply have to practice. It's important to get this across, as the more advanced a chess player, the more this knowledge should be used. This is what Tal and Kasparov did, the former could become the world champion if it wasn't for his premature demise, the later did. There are a lot of better defences to Kasparov's attacks that one played during the actual games (eg. rook sac, Kasparov vs. Topalov, 1999), but still, there must be some reason they weren't played. On the other hand, this is what Karpov and Korchnoi couldn't understand, the former was beaten by Kasparov (when? during highly tactical games, as it wasn't his cup of tea, during 'standard' games he played well) and the latter never became the champion (my guess is he also rejects the idea to play by gut).
                        Chess aside, most equations in quantum mechanics that work brilliantly and are fundamental to the description of our world were thought of without any kind of experiments, by the people sitting by their desks. As much as science is not deterministic, chess is not too.
                        Originally posted by mrmip View Post
                        Here's the claimed 'refutation' of the line:
                        I concur up to the move 8. Kh1, when 8. Kh2 may actually be better - see later.
                        The actual 'fault' in the analysis is 10. Bc4 (?), which leads only to slight plus for white. Significantly better is 10.Nc4! with idea of 11.Na5 putting pressure to b7 and c6.
                        An example line goes:
                        1. b4 Bxb4 2. Rb1 Bxd2 3. Nxd2 Nc6 4. c3 Qe8 5. Qc2 Rd6 6. Qb2 Nd8 7. c4 Qg6 8. Kh1 Bd7 9. c5 Re6 10. Nc4 Bc6 11. f3 f5 12. Na5 fxe4 { Had white played 8. Kh2 then now 13. Bxa6! would be crushing }
                        13. Nxc6 Rxc6 14. fxe4 Rf6 15. Bf3 ... and white is clearly winning.
                        Yes, 10. Nc4 is the correct continuation. Still, I think that white should opt for 2. c3 realizing how strong of an attack he has. In practice 2. c3 is going to win the game for white - it's easier to be inclined about lines during the analysis, but this is an actual chess position and I think that OTB no one would hold this as black.
                        Originally posted by mrmip View Post
                        All in all I think black's best bet for survival is to leave the b-pawn be and try to proceed with his own plans: 1.b4! f5!?...
                        Great we agree on that.`
                        Last edited by stachu71; 06-17-2014, 07:06 PM.
                        Skype chess coaching? Send a message!
                        Ever heard of The Hook and Ladder trick? Please refer to the famous game by Andriej Hook and James Ladder.
                        Play as if you didn't understand chess. People always fear what they don't understand.

                        Comment


                        • #13
                          Originally posted by stachu71 View Post
                          This is what Tal and Kasparov did, the former could become the world champion if it wasn't for his premature demise, the later did.
                          Ahem! ... For Your information Misha Tal did become the World Champion by defeating Mihail Botvinnik in a match in 1960, although he lost the title in the return match a year later.
                          There are only three kinds of chessplayers: Those who can count and those who cannot.

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