| Aug-17-16 | | yadasampati: GROB Beer hangover (see: https://www.amazon.com/GROB-Beer-Ce... ) |
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| Aug-17-16 | | Fish55: 32...Rxf2 was not hard to spot, but I was surprised that white took the black queen on move 33. |
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Aug-17-16
 | | Penguincw: Hehe, white avoided the Grob Attack and still lost.
Anyway, I missed all the puzzles last week. Can I really be 3/3 the following week? Well, I saw 32...Rxf2. If 33.Rxf2, then 33...Qxe3, white is in trouble. Black was already up a bishop and 2 pawns for a knight. I also saw 33.Rxe5 (the line played in the game) Rxg2+ 34.Kh1 Rxd2+ but didn't see 35...Rxf1+ or 36...Bc4+. I don't know if it's because it was too many moves for me to visualize/calculate, but 35...Rxf1+ is essential to make sure this game ends 0-1, not 1-0, and 36...Bc4+ just ensures that white doesn't have fighting chances (although being up 4 healthy pawns I'm sure isn't too difficult to convert). Of course, make sure to play 36...Bc4+, not 36...Bg2+, as staying on the a2-g8 diagonal ensures no back rank mate problems. I'll give myself half credit. 2.5/3 this week. |
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| Aug-17-16 | | saturn2: Rxf2 wins another pawn. The game continuation by white does not seem the best, anyway he is lost. |
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| Aug-17-16 | | plumbst: Black is already 2 pawns up, so 32...Rxf2! seems to liquidate into an easily won ending. 33.Rxf2 Qxe3 34.Nf1 Qxf2+
or
33.Rxe5 Rxg2+ 34.Kh1 Rxd2+ 35.Kg1 (35.Rxd5 Rxf1#) Rxf1+ 36.Kxf1 Rxb2 |
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Aug-17-16
 | | agb2002: Black has a bishop and two pawns for a knight.
White threatens Rxe5.
The bishop aims at g2. This suggests 32... Rxf2:
A) 33.Rxe5 Rxg2+ 34.Kh1 Rxd2+
A.1) 35.Rxd5 Rxf1#.
A.2) 35.Kg1 Rxf1+ 36.Kxf1 Rxb2 37.Rxd5 (37.Re8+ Bg8 - + [B+4P]) 37... c4 - + [4P]. For example, 38.Rxd7 h6 39.Ra7 Rb3 40.Rxa6 Rxc3 41.Kg2 Rb3 etc. A.3) 35.Rf3 Bxf3+ 36.Kg1 Rxb2 - + [R+B+4P].
B) 33.Rxf2 Qxe3
B.1) 34.Nf1 Qxf2+ 35.Qxf2 Rxf2 36.Kxf2 Kg8 - + [B+3P vs N]. B.2) 34.Nf3 Bxf3 35.gxf3 Rxf3 followed by 36... Qxf2+ - + [4P]. B.3) 34.Nb1(3) Qe1+ wins.
C) 33.Nf3 Rxf1+ 34.Kxf1 Qxe3 wins. |
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| Aug-17-16 | | YouRang: Wednesday 32...?
click for larger view
Observations:
- I (black) have a bunch of firepower aimed at white's king. My bishop has a strong diagonal that could work well in conjunction with a R or Q. - I notice that black has a material advantage of two pawns, and so a tactic that just simplifies to an endgame would probably be winning. - My Q is under attack, so I either have to move it, or more likely, find a tactic that makes a Q sac work. My first thought is <32...Rxf2>
click for larger view
This puts the question to white.
[A] Taking the queen <33.Rxe5> puts his K in a windmill with <33...Rxg2+ 34.Kh1 Rxd2+ 35.Kg1 Rxf1+ 36.Kxf1>
click for larger view
And now I save my bishop with <36...Bc4+!> before taking the Q <37.Ke1 Rxb2>, leaving me up a piece.  [B] Taking the rook <33.Rxf2> allows black to get the rook back with a pin <33...Qxe3>
click for larger view
The Rf2 is in danger, and white has to move the N to guard it with the Q, e.g. <34.Nf3>, but then <34...Bxf3 35.gxf3 Rxf3>
click for larger view
At a minimum, the pieces will all come off leaving black with an enormous pawn advantage, e.g. 36.Kf1 Rxf2 37.Qxf2 Qxf2 38.Kxf2 |
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| Aug-17-16 | | roentgenium: Like some of the other kibitzers here, I was able to find 32...Rxf2 and correctly evaluate the two key variations 33.Rxf2 and 33.Rxe5 as wins for Black, but missed the easy win at the last hurdle, failing to see 36...Bc4+! So I guess it's a pass mark, but not full marks for me today (although I do hope that in an actual game, I'd get to move 36 and then spot 36...Bc4 even if I hadn't seen it at move 32.) |
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| Aug-17-16 | | gofer: <32 ... Rxf2>
33 Rxe5? Rxg2+
34 Kh1 Rxd2+
35 Kg1 Rxf1+ (Rxd5 Rxf1#)
36 Kxf1 Bc4+
37 Ke1/Kg1 Rxb2
38 Re8+ Bg8
<33 Rxf2 Qxe3>
<34 Nf1 Rxf2>
35 Nxe3 Rxb2
36 Nxd5 Rb3
<35 Qxf2 Qxc3>
click for larger viewBlack is 4 pawns up and can easily defend against Qf8+! Time for white to get his coat... |
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| Aug-17-16 | | mel gibson: I saw 32... Qg5
& when I tried it with silicon it works too but not as fast. |
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| Aug-17-16 | | dfcx: Black already has two 2P+B against N, and wins with
32...Rxf2
A. 33. Rxe5? Rxg2+ 34.Kh1 Rxd2+ 35.Kg1 Rxf1+ 36.Kxg1 Bc4+ followed by Rxb2 wins a piece and pawn B. 33.Rxf2 Qxe3 34.Nf1 (Nf3 Bxf3) Rxf2 35.Qxf2 Qxf2+ 36.Kxf2 Black now wins easily with 3 extra pawns. |
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| Aug-17-16 | | YetAnotherAmateur: 32. Rxf2 looks like the right place to start.
If white ignores it, that leads to a very fun sequence:
A) 32. ... Rxe5 33. Rxg2+ Kh1 34. Rxd2+ Kg1 35. Rxf1+ Kxf1 36. Bc4+ Kmoves 37. Rxb2 winning back the queen and the knight. if 37. ... Rd8+ 38. Bg8 and black is safe. If white takes it, he's still in trouble:
B) 32. ... Rxf2 33. Qxe3 Nf1 34. Rxf2 Nxe3 35. Rxb2 and black is up the exchange. |
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| Aug-17-16 | | Virgil A: Nice game.
Grob a Beer! |
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Aug-17-16
 | | varishnakov: missed the necessary check to keep the bishop |
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Aug-17-16
 | | kevin86: Black will regain the queen and be a bishop (and a pile of pawns) ahead! |
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Aug-17-16
| | kevin86: Grob me a beer! |
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| Aug-17-16 | | YouRang: <varishnakov: missed the necessary check to keep the bishop> It's one of those moves that you'll probably see "when you get there". But even if you don't see it, black is still winning. <33.Rxe5 Rxg2+ 34.Kh1 Rxd2+ 35.Kg1 Rxf1+ 36.Kxf1>
click for larger view
If now <36...Rxb2 37.Rxd5>
click for larger view
Black's huge pawn advantage should make this an easy win. |
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Aug-17-16
 | | Domdaniel: Re: seeing the win when you get there: In this case, I reckon most people would "get there" -- the alternatives aren't very promising. |
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| Aug-17-16 | | Patriot: With the bishop aimed at g2 and the rooks battering f2, the gun is aimed and the hammer is cocked--all you have to do is pull the trigger. 32...Rxf2
33.Rxf2 Qxe3
33.Rxe5 Rxg2+ 34.Kh1 Rxd2+ 35.Rxd5 Rxf1#
33.Rxe5 Rxg2+ 34.Kh1 Rxd2+ 35.Kg1 Rxf1+ 36.Kxf1 Rxb2 37.Rxd5 - The game move, 36...Bc4+ is much better. 33.c4 Rxg2+ 34.Kh1 Qh2# |
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| Aug-17-16 | | Cheapo by the Dozen: My write-up:
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Black is basically 2 pawns up, with a nice position. So 32 ... Qf5 probably wins. Can we do better?
Attacks on g2 are unlikely to work, for lots of reasons.
But what about ... Rxf2? If White declines the sacrifice with: 32 ... Rxf2
33 Rx2 Qxe3
Black is now up 3 pawns or so, with a variety of dangerous pins. This is not a viable line for White; he has to take the queen. So what happens if he accepts? 32 ... Rxf2
33 Rxe5 Rxg2+
34 Kh1 Rxd2+
35 Rxd5 Rxf1#!
Alternatives for White involve, at best, crushing material loss. |
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Aug-18-16
 | | HeMateMe: Grobbed a Beer, he did. |
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Jun-17-19
 | | FSR: 8.Nd5! is very strong. https://en.wikipedia.org/wiki/Englu... |
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| Jun-17-19 | | actinia: starting at move 16 white really starts heading south. inexplicable for a correspondence game. just push the a pawn. if Re8 then exchange bishop for knight. the e5 pawn is doing a great job of cramping black. the c8 bishop has to get out. if black's d pawn moves then exd6 to open up the long diagonal. if black pushes the b pawn then white uses the a and c pawns to open up the b file for his rook. I don't understand white's play |
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| Jun-17-19 | | goodevans: <actinia> I agree. In fact I think white probably had several ways to take advantage of a dominant position but managed to avoid them all. Most strange was the manoeuvre 19.Rd4/20.Rg4/21.e4 taking the R to a pretty useless position and locking it there. When black later offered to trade off this dire R white even declined! |
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Kibitzing
sac: 32...Rxf2