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| Aug-12-16 | | agb2002: White has a bishop for two pawns.
Black threatens Qxf3 and Qg3+ with perpetual.
White can take advantage of the weak squares around the black king with 31.Ne7+: A) 31... Rxe7 32.Ra8+ Re8 (32... Nf8 33.Rxf8+ and 34.Qh8#) 33.Rxe8+ Nf8 34.Qxe3 + - [R+B vs N+P]. B) 31... Kf8 32.Nxg6+ (32.Qh8+ Kxe7 33.Ra7+ Kd8 34.Ra8+ Kc7 with the double threat Rxh8 and Qg3+ and perpetual) 32... fxg6 (32... Kg8 33.Qh8#) 33.Qh8+ B.1) 33... Ke7 34.Ra7+ (34.Qxh7+ Kf6) 34... Kd8 35.Ra8+ wins decisive material or mates (35... Kc7 36.Qxh7+ Qd7 37.Ra7+, etc.). B.2) 33... Kf7 34.Ra7+ Re7 35.Qxh7+ wins (35... Kf6 36.Qxe7+ Kf5 37.Qf7#). |
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| Aug-12-16 | | Cybe: 28. Ra1? 28… e2! Very interesting is 28. R:e3. |
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| Aug-12-16 | | gofer: Nice simple Friday...
<31 Ne7+ ...>
31 ... Kf8?
32 Nxg6+ fxg6 (Kg8 Qh8#)
33 Qh8+ ...
33 ... Kf7
34 Ra7+ Re7
35 Qxh7+ Kf6/Qf8
36 Qe7+ mating
33 ... Ke7
34 Ra7+ Kd8
35 Ra8+ Kc7
36 Qxh7+ mating
<31 ... Rxe7>
<32 Ra8+ ...>
32 ... Nf8
33 Rxf8+ Kxf8/Kh7
34 Qh8#
<32 ... Re8>
<33 Rxe8+ Nf8>
<34 Qxe3  >
click for larger viewBlack is not dead yet, but white is almost a whole rook up! ~~~
Yep! |
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| Aug-12-16 | | ozmikey: Nice and easy by Friday standards! |
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| Aug-12-16 | | macinalli: I don't think we can say it's solved without finding 32. Nxg6. I missed that move and after the King gets to c7, white runs out of checks and black gets a perpetual |
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| Aug-12-16 | | Hodor: cuoldn't suolve dis |
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| Aug-12-16 | | clement41: Got it. It's "relatively" simple to find even OTB because white's attack progresses step by step with the moves ie white doesn't have to foresee everything before going for Ne7+. A useful observation is that white'd better play checks else black has at least a perpetual that's quite easy to see |
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| Aug-12-16 | | Virgil A: Rather easy for a Friday. |
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Aug-12-16
 | | steinitzfan: I missed it completely. Didn't see the strength of 31Ne7. Even after being shown 31Ne7 I didn't see the necessity of Ng6. Good puzzle. I'll do better next Friday. |
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| Aug-12-16 | | rgr459: 31. Ne7 removes the black king's pants straight away. Half credit for me. |
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| Aug-12-16 | | Geronimo: It's rare for me to get a Friday puzzle without setting up a board to work it through. Either I'm getting significantly better (as probable without study as suddenly growing two inches taller in my 40s...) or this was on the easy side. An alternative explanation is that I didn't see certain serious complications that a stronger player would see, and would therefore have to work through before the text move. I wonder if there's a "fools rush in where angels fear to tread" collection of puzzles that lessor players can guess because of this reason! |
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| Aug-12-16 | | alshatranji: I had 34. Qg7+, which wins too. 44...Kd8, 45.Ra8+ Qc8, 46.Rxc8+ Kc8, 47.Kxh7 e2, 48.Bxe2 Rxe2, should be an easy win. |
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| Aug-12-16 | | mchess: Solved it but Nxg6+!!is not so obvious to find. |
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| Aug-12-16 | | David2009: J M Burke vs S Arun Prasad 31?
click for larger view
White starts off a piece up and will need it to win. 31.Ne7+ wins quickly. The N
cannot be taken: 31...Rxe7 32.Ra8+ Nf8 33.Rxf8+ Kxf8
34.Qh8+ mate which leaves only 31...Kf8 32.Qh8+! Kxe7 33.Ra7+ Qd7 34.Rxd7+ Kxd7 35.Qxh7 e2
and Whie can choose between two winning endings: 36.Qxf7+ Re7 37.Qxe7+ Kxe7 38.Bxe2 being a Bishop up, or the simple
36.Bxe2 winning with Q and Pawns against R and pawns. Time to check against Crafty End Game Trainer. Click on the
following link :
http://www.chessvideos.tv/endgame-t... You play White against a fast robot. Let's see what happens.
= = =
I was wrong- The N can be taken
31...Rxe7 32.Ra8+ Re8 gives up the exchange and is the EGT's choice.
We enter an ending a Rook up for Pawns. Even I can win that one (and do first time).
Time to view the kibitzes:
= = = = =
I see that the EGT has defended using <gofer>'s analysis. The game ended differently from my own analysis. Egg on my face: I have missed the win (31.Ne7+ Kf8 32.Qa8+? only draws). Can you do better using this further Crafty EGT link? http://www.chessvideos.tv/endgame-t... Moral: put not your trust in robots! The "best" defence to a robot is not the best defence for a human! |
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Aug-12-16
 | | gawain: Sweet combination.
I lazily put in a Tuesday's worth of effort and did not solve this one. I looked at 31 Ne7+ of course but I never saw the knight sac at g6. I did notice that the white rook could cause trouble on the 7th rank but did not get beyond an immediate 31 Ra7 which does not work. |
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Aug-12-16
 | | Jimfromprovidence: FWIW, in the line 31 Ne7+ Rxe7 32.Ra8+ Re8 33.Rxe8+ Nf8, white also has 34.Bg2, below.
click for larger view |
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| Aug-12-16 | | YouRang: Friday (for real this time) 31.?
click for larger view
My (white) Q has a menacing diagonal to black's king, which creates back rank mating potential since the K can't escape to g7 (and I happen to have a rook ready to hit the back rank). Also, the K can't go to f7 due to Qh8#. Really, noticing these points pretty much solves the puzzle: <31.Ne7+!> checks the beleaguered K and it can't be taken (31.Rxe7 Ra8+ 32.Nf8 Rxf8! 33.Kxf8 Qh8#; or 32.Re8 Rxe8 33.Nf8 Qxe3 removes black passed pawn and guards LSB, and I'm up a rook). The trickier reply is <31...Kf8>
click for larger view
Now, Qh8+ doesn't work, and I have to keep attacking because I have two pieces en prise. But following the "monkey see check, monkey give check" principle, I tried <32.Nxg6+!> which demands <32...fxg6> (or elset Qh8#).
click for larger view
The removal of the Pf7 had the wonderful effect of opening the 7th rank for my rook, and thanks to Pd5, black's K can't get off the 7th rank. The rest is easy, with white's Q+R working together: <33.Qh8+ Ke7 34.Ra7+ Kd8 35.Ra8+ Kc7 36.Qxh7+>
click for larger view
There's no point blocking check with <36...Qd7> due to <37.Ra7+ and 38.Qxd7 ~#> |
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| Aug-12-16 | | kevin86: The knight sac looked obvious, but not the second one. After that, the game goes on ice. |
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| Aug-12-16 | | King Harvest: I didn't bother analyzing the declined sac line, a major no-no... but when forced to, I found the continuation Nxg6 to the finish (actually, I improved on the finish IMO, as noted below) in not too much time. I'm sure it's in the kibitz's previously, (unless I'm somehow mistaken) but the text.. 34.Ra7+ etc. is slightly inaccurate... better was 34.Qg7 Kd8 35.Ra8# |
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| Aug-12-16 | | King Harvest: Lolzorz... no "improvements" for me over the young 2600's play! (see previous post) -- My quicker mate isn't... pays to look at the whole board don't it? |
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| Aug-12-16 | | dfcx: 31.Ne7+ and black has no good defense.
A. 31...Rxe7 32.Ra1+ Re8 (Nf8 33.Rxf8+ Kxf8 34.Qh8#) 33.Rxe8+ Nf8 34.Qxe3 wins B. 31...Kf8? 32.Nxg6+ fxg6 33.Qh8+ Ke7 34.Ra7+ Kd8 35.Ra8+ wins |
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| Aug-12-16 | | newzild: I made the same mistake as <al wazir> |
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| Aug-12-16 | | Patriot: Black threatens ...Qxf3 and ...e2 is in the air.
The white queen's control of a1-h8 and rook on the open a-file leads me to consider 31.Ne7+: 31...Rxe7 32.Ra8+ Nf8 33.Rxf8+ Kxf8 and thanks to the rook on e7, 34.Qh8 is mate. 31...Kf8 32.Qh8+ Kxe7 33.Ra7+
a) 33...Qd7 34.Rxd7+ Kxd7 35.Qxh7 e2 36.Bxe2 Rxe2 37.Qxf7+ b) 33...Kd8 34.Ra8+ Kc7 35.Qxe8 Qg3+ 36.Bg2 Qe1+ =
Ok, I think line b) is why 32.Qh8+ is wrong and 32.Nxg5+ works. Earlier I looked at this problem and analyzed it but wondered what was wrong with 32.Qh8+. Now to check against the computer... |
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| Aug-12-16 | | Patriot: Sorry about quoting wrong move numbers--I meant 32.Nxg6+ in the last paragraph (not 32.Nxg5+). I was right about 32.Qh8+ being a draw and other's have caught on to this as well. |
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| Aug-12-16 | | drollere: black has traded a piece for two pawns, one of them advanced to the third rank, and has demolished the white K pawn defenses. the immediate threat is Qxf3 and pawn advance; or just e2 and the white B is pinned on the hanging Q. white wants Ne7+ but the R at e8 prevents. wait ... if Rxe7 then Ra8+, and either mate or white wins the R and captures at e3. 31. Ne7+ Kf8
32. Nxg6+ fg6
33. Qh8+ Kf7
34. Ra7+ Re7
35. Qxh7+ and mate shortly.
and so it was, at least three moves deep! 11/15 |
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