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| Sep-19-08 | | zb2cr: Wow, what a long and involved way to set up a winning Knight fork! I went with 23. Bxe5. Otherwise, the variations were (largely) as calculated and ably written up by <johnlspouge>. |
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| Sep-19-08 | | dakgootje: hmm saw this today as puzzle in my newspaper, could see it as alternative puzzle ;)
click for larger viewWhite to play |
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| Sep-19-08 | | sfm: I don't recall ever seeing such a fast cleanup of pieces. They all go in a few moves - except one. |
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| Sep-19-08 | | whiteshark: That's brilliant! |
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| Sep-19-08 | | ughaibu: Qe5, f6, Bd5 etc. |
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| Sep-19-08 | | johnlspouge: <<agb2002> wrote: [snip] By the way, I liked your paper on the evaluation of the gamma function.> Hi, <agb2002>. Thanks. |
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| Sep-19-08 | | TrueBlue: Easiest Friday I have seen in a long time. Not sure why this is a puzzle at all. The simple 23. Bxe5 fxe5 24. Nc6 wins. Maybe there is a better movie, but I would play those moves over the board right away and win. White is in a much better position and simple game simplification gives him even more material. |
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| Sep-19-08 | | TrueBlue: well, Bxe5 was obvious for me to see and how it wins material and the game. Last time I checked, I was a human and I didn't even consider Rxd7 (complicates the game unnecessary). My point is that to say that one move is easier to see than another for human is a wrong statement because it all depends on who is the human. |
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| Sep-19-08 | | stardust762: This one was amazing! |
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| Sep-19-08 | | stardust762: 23.Bxe5 may be the stronger move, but both moves wins and 23.Rxd7 is more beautiful. I agree with Susan Polgar: "win with grace, lose with dignity" |
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| Sep-19-08 | | JG27Pyth: A bit of a calculation test here... I didn't pass... I examined the correct move, but couldn't calculate it deeply enough to see that it wins cleanly. Bxe5 would have been my choice -- a good move... but I know missed some key points in Bxe5 line... I hate finding out that the move I played was a good move but for reasons I didn't actually appreciate when making it! |
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| Sep-19-08 | | patzer2: White's 13. Nd2! begins an instructive combination. Material is even at the end of the forcing exchange, but White probably has a decisive advantage in development after the forcing exchange that immediately follows (i.e. 13.
Nd2! Bc4+ 14. Bxc4 dxc4 15. Nb5!  ). |
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| Sep-19-08 | | JG27Pyth: <I agree with Susan Polgar: "win with grace, lose with dignity"> ... but take the draw against the higher-rateds. |
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| Sep-19-08 | | patzer2: Black's troubles begin with the greedy 11...Bc2?, which makes the mistake of going pawn grabbing before completing development. Instead, 11...a6 12. Bxc6 bxc6 13. Rhc1 f6 = gives Black decent chances. |
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| Sep-19-08 | | YouRang: We have a nice rook battery on the 7th rank in line with 2 black pieces and the king. It will spring to life once we move the knight between them, so it's a matter of finding the right moment to do that. Here's what I came up with: 23.Bxe5 <remove defender of knight> fxe5 <clearly not 23...Nxe5 24.Nd5+ & 26.Rxe7+ ; however now our d4-knight is in danger> 24.Nc6 <forking the rook and bishop (which will come under double attack once we play Rxe7), and it also hits d8, preventing the black rook from going there to defend the knight> Rbc8 <take rook out of attack and threaten our rook, at least I didn't anything much better> 25.Rxd7 <picking up knight and threatening Rxd7+> Rxc6 <only move to get piece back and remove threat> 26.Nd8+! <a good time to move that knight! We fork the K+R and open the rook battery to kill the pinned e7 bishop> Rxd8 <minimize the damage> 27.Rxd8 <wins exchange; bishop cannot recapture since it's pinned> Kf6 <break pin; not 27...Ke6 28.Re8 winning bishop> 28.Rxd5 <and now white is up the exchange plus a pawn; should be easily winning> It may not be the fastest way to win, but I'm pretty sure it's clearly winning. :-) |
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| Sep-19-08 | | Woody Wood Pusher: I went for 23.Rxd7, Nxd7 24.Nd6+?!, Bxd6 (24..Kf8? 25.Ne6+,Kg8 26.Rxd7, Bf8 +5.0 eval) 25. Rxd7+, Ke8 (25...Be7? 26. Bxb8, Rxb8 27.Nc6, Rxb2+ 28.Kf3,Rc2 29.Nxe7 + -) 26. Rxd6, Rxb2+ 27.Kf3 with a likely won endgame for white (+2.8 evaluation) The game continuation wins much more cleanly though.
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Sep-19-08
 | | chrisowen: Bac on track for white as the hogs tie down the black defence. The unusual five in a row looks good for a combo so he throttles it by 23. Rxd7 Nxd7 Bxb8 rather than 23. Bxe5 which takes longer but is also sus. <An Englishman> Feeding your line it is mating for white with Rg7+? |
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| Sep-19-08 | | fyad reject: what an awesome combo |
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| Sep-19-08 | | AniamL: What if 17...e5?
In my very precursory analysis, it involves white sacrificing a bishop to strangle black's king... seems unclear though. What am I missing? |
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| Sep-19-08 | | AniamL: Never mind, it looks like dxe5 is strong enough. |
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| Sep-19-08 | | kevin86: "The Case of the Augmented Seventh"
At move 23 all squares are occupied-only two by pawns. After a comical series of exchanges,white picks off the last piece with a fork. 27...♔xe7 28 ♘c6+ ♔d6 29 ♘xb8-and wins with the extra pawn and knight. Also,the rank is now CLEAR of pieces in just five moves. |
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| Sep-19-08 | | patzer2: <What if 17...e5?> No sacrifice is necessary. After 17...e5 18. dxe5 Ndxe5 19. Nxb7 , White should have just enough to win. |
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| Sep-19-08 | | MiCrooks: Have to say that it is kind of a bad choice for a puzzle when 5 lines evaluate out to > +3 and at least 15 lines give you > +2!! That's an endurable advantage! I too found the Bxe5 line instead which evaluates essentially equal to Rxd7, though my follow up to Black's best fxe5 was going to be the relatively inferior Nd6 which "only" is > +3. I have to say the final position in the game is quite nice. Pretty clear when you have the only piece left on the board along with an extra outside passed pawn that victory is a sleep walk at that point. |
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| Sep-19-08 | | lost in space: Very late today!
I tried to find the most forcing line and an other one, extremly less forcing, but winning. The most forcing one:
23. Rxd7 Nxd7 24. Bxb8 Rxb8 25. Nxd56 Bxd6 26. Rxd7+ Be7 27. Rxe7+ Kxe7 28. Nc6+ und Black can resign The one which is like strangling:
23. Nf5 g6
or Bf8 24. Bxe5 fxe5 25. Rxd7 (also winning is 25. g4 g6 26. Rxd7 ) 25...Ke6 26. Sbd6 ( 26...Bxd6 27. Rxd6 Kxf5 28. Rf7+ Kg4 29. Rxg7+ Kf5 30. g4+ Ke4 31. f3#) Rg8 27. f4 ; 24. Nxe7 Kxe7 25. Bxe5 fxe5 26. Nc5 Kd6 27. Nxd7 Rxb2 28. Kf3 e4+ 29. Kg3 h5 30. Nf6 h4+ 31. Kh3 Rf8 32. Rd7+ Ke5 33. Ng4+ Ke6 34. Kxh4 I fully understand that this can not be called a solution of a puzzle as there are so many ways Black could play differntly. It was just fun to win in a differnt way. I don't think there is away out for Black after 23. Nf5. |
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| Sep-19-08 | | DarthStapler: I just chose Bxe5 |
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