< Earlier Kibitzing · PAGE 7 OF 7 ·
|Oct-15-17|| ||Magnus Kasparov: I guessed this one right away. Easiest Sunday ever.|
|Oct-15-17|| ||stacase: What I didn't see seven moves out is that after White's Rook, Bishop, and Queen remove themselves from row three White's a1 Rook can get to g3 in only two moves instead of three. |
I'm not claiming I saw seven moves out, I moved Bishop takes h7 right away since it was obvious and what I would have done over the board and then just played it out until I didn't do what Polugaevsky did.
|Oct-15-17|| ||An Englishman: Good Evening: 6/7 for the week. If only I hadn't flubbed Friday...|
|Oct-15-17|| ||newzild: 19. Bxh7+ is not only correct, but almost obligatory.|
White has a space advantage and is almost fully developed, while Black's knight and Queen's rook are out of play but will remain so for only a move or two.
White can give up a piece almost by intuition.
|Oct-15-17|| ||zborris8: Here I predicted the first several moves, but thought that 25.Ra3 would lead to mate in this variation. It shows that I'm not visualizing the best defenses for my opponents, so it's something I need to work on!|
|Oct-15-17|| ||QueenMe: Exact same analysis as <stacase>: though officially "insane", you can almost intuitively solve this puzzle one move at a time. The real tipping point is to have the guts to sacrifice your final (black) bishop, so that your remaining rook can safely make it to A3.|
|Oct-15-17|| ||mel gibson: Interesting - the computer did not pick the Bishop sacrifice so I put in that sacrifice and ran it anyway.
Black put up a stronger defense:
19. Bxh7+ Kxh7 (19.
.. Kxh7 (♔g8xh7 ♕f3-h5+ ♔h7-g8 ♖c3-g3 ♗e7-f8 ♗f4-g5 ♖e8-e7 ♗g5-f6 ♘b8-d7
♕h5-h6 ♘d7xf6 e5xf6 g7-g6 f6xe7 ♗f8xe7 ♖a1-c1 ♗e7-d6 ♖g3-f3 ♕d8-b6 ♕h6-d2
♕b6-d8 ♖f3-b3 ♕d8-d7 a4-a5 ♖a8-e8 g2-g3 ♖e8-b8 ♔g1-g2 ♖b8-e8 ♖b3-b6 ♔g8-g7)
score for black -1.55 depth 21.
|Oct-15-17|| ||Willber G: One thing is certain - whenever I get a Sunday puzzle somebody will say, "Easiest Sunday ever!" Sadly they are probably correct.|
|Oct-15-17|| ||gofer: By comparison with yesterday, today's POTD was <Easy>...|
<19 Bxh7+ Kxh7>
<20 Qh5+ Kg8>
<21 Rg3 ...>
Also there are two other moves that are going to happen at some point, Bh6 threatening mate and Ra3 followed by Rg3
when the mate threat of Bh6 means that black's DSB cannot defend against Ra3 AND still defend the mate threat of Bh6.
Did I see the entire sequence? Nope. Did I need to see the entire sequence to play the first three moves?! Well that
is a really good question...
Sorry <Willber G>...
|Oct-15-17|| ||patzer2: Black's decisive mistake appears to be the not-so-obvious error 18...Nb8? allowing 19. Bxh7+!! +-.|
Instead, 18...Qb6 19. Be3 ± gives Black practical drawing chances as play might go 18...Qb6 19 .Be3 Rec8 20. Bxh7+! Kxh7 21. Qxf7 Qd8 22. Qxe6 Nb6 23. h4 Rc6 24. Rxc6 bxc6 25. Qf5+ Kh8 26. b3 Qe8 27. Qe6 Qd7 28. Qg6 Qe8 29. Qxe8+ Rxe8 30. Rc1 Rc8 31. h4 ± (+0.96 @ 31 depth, Stockfish 8.)
Earlier, Black could have kept it fully equal with the simple positional maneuver 15...Bxf3 16. Qxf3 Nb8 = (0.00 @ 39 depth, Stockfish 8.) Black probably had something like this in mind with 17...Bxf3 18. Qxf3 Nb8? but under estimated the strength of 19. Bxh7+!!
|Oct-15-17|| ||morfishine: I figured <19.Bxh7+> followed by <20.Qh5+> and even 21.Rg3/22.Rxg6+ but not the next 12 moves|
|Oct-15-17|| ||Kyudaime: I also got the first 3 moves 19. ♗xh7 ♔xh7 20. ♕h5+ ♔g8 21. ♖g8... and now what if Black 21st move is 21...♗f8 rather than the weak 21...g6? ;)|
|Oct-15-17|| ||Marmot PFL: Looks like a fairly straightforward bishop sac, aided by some dubious defensive moves by black (17...Bg6 prevents the sac, 18...Nf8 defends the king, Nb8 doesn't, 21...g6 looks like desperation when 21..Bf8 at least holds out longer. The hard part is getting the rook to a3 by diverting the bishop which Polu solves.|
|Oct-15-17|| ||Walter Glattke: 18.-Nb8?? Looks like a corrupt match, and 33.-Rf6!? should be commented.
Every club player would play 18.-g6, I think.|
|Oct-15-17|| ||Jimfromprovidence: As discussed back in September 2011 as well as today, 21...Bf8 makes this puzzle immensely harder.|
click for larger view
Now one has to analyze 22 Bg5 and 22 Bh6 and it gets real complicated.
|Oct-15-17|| ||scormus: Looking it at 19 W to play, I immediately went for 19 Bxh7+ simply because it was a puzzle. Then the moves in the sequence Qh5+, Rg3, Rxg6+, Qxg6+, Qh6+, .... were rather easy to find, too easy. |
<Jim> Yes, good thinking. B didn't have to play 21 .... g6? The best and most natural move is 21 .... Bf8! Then it looks like 22 Bg5 with the aim of Bf6.
|Oct-15-17|| ||drollere: black ends up cursing that pawn at e5!|
|Oct-15-17|| ||zborris8: <chrisowen> It's not stream of consciousness writing, but a task that your brain is now performing out of a sense of habit. |
Times Word used
Your 10 key words of habit since 2016:
|Oct-15-17|| ||zborris8: Breaking the cycle of habituation is like breaking ice - once it cracks, it shatters. (Joyce planned every single word he wrote.) Good luck!|
|Oct-15-17|| ||Muttley101: I saw this combination played live :)|
|Oct-15-17|| ||Amulet: <chrisowen>
Will you please enlighten me as what your intention may be in doing this foolishness of commenting on a game, that do not make sense. You always make a fool of yourself.
Once is good enough, twice may be pardonable, thrice makes one to raise an eyebrow. You already made a career doing this nonsence.
|Oct-15-17|| ||Murky: I greatly enjoy and appreciate chrisowen's commentary. - Murky|
|Oct-15-17|| ||JimNorCal: Muttley101: Really?!?
What a treat. Did Polu pause at any time or did the combination pretty much flow after Bxh7+?
|Oct-15-17|| ||stst: Late, give two possible lines, both starts with 19.Bxh7+ to kick off series of actions
(A) if KxB, it's easier for White:
20.Qh5+ Kg8 (Kf8 is obviously smothered..Qh8#)
22.Rxg6+ (have to sac to open fire) fxR
23.Qxg6+ Kh8 (Kf8==> Bh6#)
24.Ra3 (supply more ammunition) Bf8 (if Rg8, Qh6#)
25.Rg3 .... Nothing saves
20.Qg4 (Qh5 somewhat inferior position wise) Bf6
22.Rc7 QxR ==> Q lost, Nd7 ==> Bd6+... nothing saves the mate Qg8#
see if Polu gave some other more beautiful attack ...
|Oct-15-17|| ||stst: got it, basically the same, Polu simply "wandered" the Q a little bit, but at last, Ra3 is necessary to deliver.|
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