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Dec-21-10
 | | markbstephenson: Przepiorka can be excused for not seeing Augustin Neumann's beautiful mating combination - especially when the latter had twice offered the exchange of Queens in the previous few moves! Sometimes inspiration comes unexpectedly and I can imagine the joy in Neumann's heart when he perceived he could end the game so handsomely! |
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Dec-21-10
 | | Phony Benoni: This may be a case where a knowledge of mating patterns leads a player astray.
click for larger viewThere's a standard shot in this kind of position: 1.Rxh8+ Kxh8 2.Qxh6+ Kg8 3.Qxg7#. Except, of course, that the Re7 covers the mate in this case. Przepiorka may have seen this, and never considered that White would be able to reverse the moves on him. However, if this were made into a puzzle (probably Monday/Tuesday level), I'd bet a huge majority of players would find 1.Qxh6+ since they are so conditioned to look for queen sacrifices early in the week. Over-the-board, the majority would probably consider 1.Rxh8+ first. |
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| Jan-19-11 | | estrick: Indeed, it does seem like a Monday or Tuesday puzzle with a forced mate in 3, starting with a queen sacrifice, of course. |
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| Jan-19-11 | | dzechiel: White to move (43?). Material even. "Medium/Easy." This feels more like a Monday to me. As opposed to yesterday and the day before, the key move fairly leapt off the screen at me. White uncorks a mate-in-three starting with...
43 Qxh6+!
A very pretty sacrifice.
43...Kxh6
The move 43...gxh6 only hastens black's demise via 44 Rxh8#. 44 Rxh8+ Kg5
Forced.
45 Rh5#
Just beautiful. Nearly a pure mate (f5 is covered by both the pawn on g4 and the rook). |
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| Jan-19-11 | | rilkefan: Took me a minute or two because I was trying to make Rxh8/Qxh6 work, with Bxg7 sprinkled in, none of which wins unless black's flag falls while he laughs. |
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| Jan-19-11 | | Patriot: 43.Qxh6+ wins by force. <dzechiel>'s analysis covers it all. At first I looked for a way to win the rook, given that it is undefended. Then I saw the mate. |
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| Jan-19-11 | | meppi: yes i also saw Rxh8+ first and calculated it to ending in nothing. Then I found Qxh6+ after. A good move in this game is 14Nc4 - 17Ne3 - 18Nd5 exchanging the dark square bishop for a knight in an open game, with blacks king on the dark h8 square. White knows that if the f pawn moves the king will be in stalemate with a check along the dark diagonal being very dangerous, so he maneuvers the knight to exchange the enemies dark bishop while retaining his own. As it turns out this dark square advantage is decisive. |
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| Jan-19-11 | | VincentL: "Medium/Easy".
Material equal.
This is surely 43. Qxh6+ Kxh6 44. Rxh8+ Kg5 45. Rh5 mate. I saw this instantly, in contrast to yesterday, when I stared at the board forever trying
to get something to work.
Let´s check. |
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Jan-19-11
 | | gawain: At first I thought it would be the exchange sac at h8--but I saw how that fails. So what else is there? The queen sac at h6. Lovely! |
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| Jan-19-11 | | newzild: Easiest puzzle of the week so far! Monday was a lot tougher. |
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Jan-19-11
 | | An Englishman: Good Evening: Include me as another who looked at the Rook sacrifice first. Clever little red herring, but worthwhile; the final mating pattern is lovely to behold. |
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| Jan-19-11 | | M.Hassan: "Medium/Easy" White to play 43.?
White has Bishop for a Knight. Considered to be equal.
Taking the Knight by the Rook appeared to be attractive at first but did not culminate in good results
<43.Rxh8+ Kxh8 44.Qxh6+ Kg8 45.Bxg7 Rxg7 and Black will be ahead and White helpless>
It was after this that I found the forcing move:
43.Qxh6+ Kxh6 (if...gxh6 44.Rxh8#)
44.Rxh8+ Kg5
45.Rh5#
This must be it. |
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| Jan-19-11 | | goldfarbdj: Like many of the people here, I looked at Rxh8+ and Qxh6+ first, then couldn't find a followup after Kg8. Then I realized that switching the moves and playing Qxh6+ first won. |
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| Jan-19-11 | | Whitehat1963: Saw the basic idea, but couldn't make it work. I kept thinking the bishop had to be involved. |
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| Jan-19-11 | | TheBish: A Neumann vs Przepiorka, 1904 White to play (43.?) "Medium/Easy"
Beautiful! Just like a composed problem. I remember seeing this before, but only after I solved it again! I believe it was a problem on the back of "Rank & File" (So. Cal. magazine) a few years back. I tend to see these pretty fast, queen sacs leading to mate such as this, that is. 43. Qxh6+!!
Extra exclam is for aesthetic as well as surprise value. Must have come as a shock to Przepiorka! 43...Kxh6
Or 43...gxh6 44. Rxh8#.
44. Rxh8+ Kg5 45. Rh5 mate. |
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| Jan-19-11 | | TheaN: Wednesday 19 January 2011
<43.?>
Material: White ♗ vs ♘
Candidates: Rxh8†, <[Qxh6†]> -ML-
This puzzle in itself is not that hard, maybe a consilidation of the last two days being very different than usual. Still, it's not my week cause I kinda messed up this one as well. The first moves are clearly easy to see, considering the Rxh8 manouver jumps out big time. The other way around it doesn't work because of an escape to g8. The key move follows: <43.Qxh6†! Kxh6 (gxh6 44.Rxh8‡ 1-0) 44.Rxh8†> however in my confident thoughts I actually noted ‡ here instead of † and went to click on the game! In a real game, I would have most probably work up to this combination and play it out just fine, but in a puzzle it's a bit of a shame to miss: <44....Kg5 45.Rh5‡ 1-0> I will consider it solved but it is sloppy at the least. |
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| Jan-19-11 | | Once: So just how do you win a chess game? Sometimes, like my good friend <patriot>, you get in a slump. Results don't go your way, your chin drops, more bad results follow, and you start to wonder why you play this impossibly capricious game of ours. It turns out that the answer to this question is the same as the answer to "how do I live a good life?". And that answer is - do the good stuff, have faith, and results will follow. It's a little bit of magic. In today's game, white does the good stuff. He spends most of the game grabbing space on the kingside. And in this he is following our formula for success. He doesn't know when or how the kingside space will pay off - that's the magic bit - but he trusts that it will do him some good eventually. Spin through the game and you see white pushing his pawns at every opportunity. First we get a standard KP plan of c3-d3-d4-e5 and the e5 thrust pushes black back. The white pawns quickly die, but in return white gets control of the central files. How is he going to win from here? I don't know ... wait for the magic to happen. Then we get the march of the kingside pawns g4-f4-f5. Again, we don't know why. White might later queen one of those pawns. Or he might cramp black's pieces and win material. Or he might force a mating combination. Do the good stuff and magic happens. Then white finds good squares for his pieces. The eight rank is a tasty home for the white rook - whether it is to mate or grab pawns. The white bishop on e5 could either assist in a mate or dominate the black knight in a minor piece endgame. We still don't know how white is going to win. He offers the exchange of queens to transition into a winning endgame - black dare not accept. And then it all pays off. White spots a mating combination which uses nearly all of his forces. By the time we get to the puzzle position, black has somehow contrived to castle on the side of the board rather than on the more traditional back rank. So white "invites" him to move to a second pseudo castle position on g5. And we see that white's advanced kingside pawns, aggressive rook and well placed bishop combine to mate. It almost certainly wasn't a deep plan from white, many moves long. Instead it was a case of opportunism. Chances happen in good positions. Or, in other words, do the good stuff, have faith, and magic will happen. Usually. |
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| Jan-19-11 | | gourav27: A brilliant queen sac by taking advantage of passive positions of rook&knight |
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| Jan-19-11 | | Formula7: 43.Qxh6+ and now:
A) 43...gxh6 44.Rxh8#
B) 43...Kxh6 44.Rxh8+ Kg5 45.Rh5# |
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| Jan-19-11 | | paavoh: This puzzle seemed to be on the easy side rather than medium. |
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| Jan-19-11 | | woody b: great forecast, <phony benoni>! although my first thought was trying to win the exchange somehow with bxg7.
then i tried Rxh8+ and it took me a while to see the mate (i was looking for mating moves with the h-pawn...) |
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Jan-19-11
 | | scormus: Lovely #ing sequence, whether B captures with K or p. I think much easier to see when its POTD than OTB. |
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| Jan-19-11 | | plateos: I have been watching for a while and decided to start posting. Luckily a rather simple on (for Wednesday). I was just wondering whether it is possible to post before seeing the game? 43. Qxh6!
43. ... gxh6 allows 44. Rxh8#
43. ... Kxh6
44. Txh8+ Kg5
45. Th5# |
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| Jan-19-11 | | gmalino: After yesterdays desaster I found this one within 10 sec.
Maybe this was supposed to be the tuesday puzzle?
43. Qxh6+ gxh6
44. Rxh8#
A forced mate in two is a little bit too easy for wednesdays, so something is going wrong at cgc puzzle-selection. |
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| Jan-19-11 | | gmalino: ok, at least I should have wasted a thought about this line..... :-( |
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Kibitzing
sac: 43.Qxh6+