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Oct-13-11
 | | al wazir: I got the first two moves and think that I had at least a 50-50 chance of seeing the forced  swap and the win -- so I give myself 3 points out of a possible 4.But what does white do after 38...Rxh2 ? Black is threatening 39...Qf2#. If 39. Qxf8+ Kxf8 40. Rd8+ Ke7 41. R1d7+, I think the  can escape. |
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Oct-13-11
 | | sevenseaman: It took me about 5 seconds to play 51. Qf6+ and the game goes to the Czech. But I cannot take <any credit> as I at least part-remembered the denouement from the very recent 'Airports Authority of India, 2011' tournament. Interesting shot though. |
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| Oct-13-11 | | jackalope: Am I missing something with 35. Rd8? Looks like it either leads to mate or the loss of Black's queen. It was the move I expected while following the game moves. 35. Rd8 Qb7+
36. Kh1 Rc1
37. Rxf8+ Kxf8
38. Rd8+ Qxd8
39. Qxd8#
Or...
35. Rd8 Rc1
36. Rxf8+ Kxf8
37. Rd8+ Qe8
38. Rxe8+ Kxe8
White has a queen and a bishop vs a rook and a knight. 39. Qxd8# |
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| Oct-13-11 | | jackalope: Sorry - that last 39. Qxd8# is a typo. It's the pits doing this on an iPhone sometimes. |
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| Oct-13-11 | | ounos: This was hard. Quickly saw Qf6+ and the easy variations, but I couldn't finish it for 4 minutes, checked the solution. DAMN, now I see it. I was staring the final position, seeing nothing, and finally asking myself "could it be there is a queen exchange somehow? but how", and duh, "obvious" :P Hard for a Wednesday. |
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Oct-13-11
 | | morfishine: <51.Qf6+>
<jackalope> You stated: <Am I missing something with 35.Rd8? Looks like it either leads to mate or the loss of Black's queen> 35...Rc8 36.Rxf8 Rxf8 37.Rd8 Qb6+ and now Black is winning |
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Oct-13-11
 | | Honza Cervenka: <shivasuri4> <I found it strange that Negi missed the obvious 14...cxd4 unleashing a discovered attack on the white queen.It was done on the subsequent move,of course,but wasn't as effective.> Well, what to do after 14...cxd4 15.Qe2? Bishop on d6 is hanging and if 15...Bb8, then 16.Nxd4 gives white clear edge due to extra Pawn. |
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| Oct-13-11 | | Jose Ortiz Elias: This is a wonderful position! Here is my idea: 51. Qf6+ wins. Let's see:
a) 51.
, Rg5; 52. Qxg5 checkmate.
b) 51.
, Kh5; 52. Qxf7+,
b.1.) 52.
, Rg6; 53. Qf5+, Rg5 (o Kh4); 54. Qh3 checkmate.
b.2.) 52.
, g6; 53. Qd5+, Rg5 (53.
, g5; 54. Qf7+, Kh4; 55. Rxh6 checkmate) 54. Qd1+, Rg4 (54.
, Kh4; 55. Rxh6+ and checkmate to follow); 55. Bh3, an incredible position: white stop all checkmates, there's only 55.
, Qxf4; 56. Qxg4+,Qxg4; 57. Bxh4+,Kxh4; 58. Rxh6, winning.
b.3.) 52.
, Kh4; (the acid test of the puzzle) 53. Qe7+, Kh5; (53.
, Rg5; 54. Qxg5 checkmate); 54. Qc5+, Qxc5; 55. bc, Rxf4; 56. Be2+, Kh4; 57. c6, goes for coronation and wins.
Amazing! Time to check. |
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| Oct-13-11 | | Jose Ortiz Elias: Right! This puzzle gave me a great time at the beginning of my day! |
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Oct-13-11
 | | King Sacrificer: <whiteshark> I preferred sacrificing the Queen and Rook before resigning. :) |
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| Oct-13-11 | | Jose Ortiz Elias: If 46. ..., Qf2, there is a nice win: 47. Qd1+, Rg4; 48. Bh3, Qxf4; 49. Qxg4+. |
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| Oct-13-11 | | SimonWebbsTiger: @<al wazir>
I'm not entirely certain what happens after 38...Rxh2. 39. Qxa7 looks forced, to defend f2. Looks hairy but white probably can consolidate. |
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Oct-13-11
 | | rhickma4: After a dificult week, something more clear cut.
Black threatens 3 different mates, so everything has to be forced.51.Qf6+ Kh5 52.Qxf7+ Kh4 53.Qe7+ Kh5 54.Qc5+ and White ends a clear piece ahead. The only options seems to be
51.Qf6+ Kh5 52.Qxf7+ g6 53.Qd5+ g5 54.Qf7+ Kh4 55.Rxh6# or
51.Qf6+ Kh5 52.Qxf7+ Rg6 53.Qf5+ Kh4 54.Qh3# |
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| Oct-13-11 | | zb2cr: I went for 51. Rxh6+, the same line as M.Hassan. |
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| Oct-13-11 | | pogotheclown: I love these kind of positions and spotted Qf6+ immediately but I rushed into analyzing specific variations so quickly that I failed to note that white was a whole piece up and so persisted with trying to find a mate instead of satisfying myself with a pawn and trading off material. Oh well... |
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Oct-13-11
 | | Memethecat: I found this to be much easier than yesterdays, I'm sure pattern recognition is important but my brain defenitly works better at different times & on different days... <51Qf6+! a51...gxf6. 52Rxh6#.
b51...Rg5. 52Qxg5#.
c51...g5. 52Rxh6#.
d51...Kh5. 52Qxf7+> if black tries to draw by perpetual <52...Kh4. 53Qe7+ Kh5. 54Qc5+> black must swap Qs leaving white a piece & passed pawn up. <e51...Kh5. 52Qxf7+ g6. 53Qd5+ g5. 54Qf7+ Kh4. 55Rxh6#. (53...Rg5. 54Qxg5#)> |
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| Oct-13-11 | | jackpawn: Wow, it really helps to wake up from a 10 hours sleep (extremely rare for me!). I found the Qf6+ solution almost immediately. |
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Oct-13-11
| | sevenseaman: < Memethecat> An integrated, comprehensive solution today. Good. |
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Oct-13-11
 | | Patriot: Black threatens mate several ways so white's move must be very forcing. It looks like 51.Qf6+ will at least draw. |
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| Oct-13-11 | | gofer: This a game of two halves... ...at least!
White is a full Bishop up, but Black has the white king in a mating net, but White has the black king in a mating net, but Black is threatening mate starting with Qxf1#, Qg1# and Rg1#, but can even play Qf3+ mating. White has no immediate mating threats, some useful tries, but nothing concrete. Now we come to the most important factor. It is white to move. <51 Qf6+ Kh5>
<52 Qxf7+ Kh4>
<53 Qe7+ Kh5>
<54 Qc5+ ...>
White forces the exchange of queens into a won endgame. Time to check... |
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| Oct-13-11 | | newshutz: <jackalope> how about ...Rc8 instead of ...Rc1. 35.Rd8 Qb6+ to bring more cover to d8
36.Kh1 Rc8 to guard the Rf8 with an x-ray
And I think black fine. |
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Oct-13-11
 | | Treestar: Blacks king is nicely hemmed in. Can white achieve more than a draw by perpetual? I think so by forcing the black king to h5 and then check with Qc5. The manoeuvre is logical, Black cannot take the Queen or put any pawns or pieces between or else mate follows. So, <51 Qf6+, Kh5 52 Qxf7+ (snack on pawn) Kh4. 53 Qe7+! Kh5 54 Qc5+ etc> time to compare notes
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Oct-13-11
 | | agb2002: White is a bishop up.
Black threatens 51... Qxf1#, 51... Q(R)g1#, 51... Qf3+, etc. The position of the black king suggests the possibility of a corridor mate. Therefore, 51.Qf6+: A) 51... gxf6 52.Rxh6#.
B) 51... g5 52.Q(R)xh6#.
C) 51... Rg5 52.Qxg5#.
D) 51... Kh5 52.Qxf7+ (52.Qf5+ Kh4 but not 52... g5 53.Qxf7+ Kh4 54.Rxh6# nor 52... Rg5 53.Qxg5#) D.1) 52... g6 53.Qd5+ g5 (53... Kh4 54.Rxh6#; 53... Rg5 54.Qxg5#) 54.Qf7+ Kh4 55.Rxh6#. D.2) 52... Rg6 53.Qf5+ Kh4 (53... Rg5 54.Qxg5#) 54.Qh3#. D.3) 52... Kh4 53.Qe7+ Kh5 (53... g5 54.Qe8+ Kh4 55.Rxh6#; 53... Rg5 54.Qxg5#) 54.Qc5+ Qxc5 55.bxc5 Rxf4 56.Bg2 + - [B]. I have repeated ... Rg5 Qxg5# five times because quite often there is a subtle detail which may avoid the winning move (Qxg5#) in one of the lines but one still thinks that it is possible. It's some kind of discipline. |
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Oct-13-11
| | awfulhangover: <ounos: Hard for a Wednesday.>
Agree,that's why they published it on a thursday:-/ |
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| Oct-13-11 | | jackalope: <morfishine> and <newshutz> - Thanks! The embarrassing part is I probably would have missed the simple refutation OTB. Rd8 just looked too tasty :-) |
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