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| Dec-23-07 | | patzer2: Dr. Spouge, did you enter the Medical field after studying Mathematics at Oxford? |
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| Dec-23-07 | | johnlspouge: <patzer2: Dr. Spouge, did you enter the Medical field after studying Mathematics at Oxford?> Hi, <patzer2>. You can call me "John", although I insist on "Dr. Spouge" from my enemies :>) Given the several posts making passing reference to my title, however, I have realized that I can accept "Dr. John" as a pleasant and jocular familiarity from the people here. No, I did the medical degree first and pithed myself thoroughly, to make the mathematics degree challenging (which it was). The two other MD-PhD mathematicians I have known did their mathematics degree first. I am nothing if not a committed masochist. chessgames.com is modestly elevating my social skills after 10 years focused on raising my two daughters, and I do welcome personal "conversation". My chessforum or an email might be a better venue, however. |
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| Dec-23-07 | | apple pi: <26. ♗xg7> When Nunn does this, its time to resign. |
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| Dec-23-07 | | dzechiel: White to move. Material even. "Insane."
Getting a late start on today, but let's see if we can offer anything original. At first glance the black king seems safe enough. But, compared with white, black's pieces are relatively uncoordinated. Black's rook is undefended should the e-file open somehow. The knight on d7 is only defended by the queen. Black's last move was likely ...Ng6, probably coming from e7, otherwise you wonder why black wouldn't have capured the e-pawn. Some candidate moves that come to mind are:
- 25 Nd4
- 25 Rc1
- 25 e6
In all the lines I'm looking at, pushing the e-pawn plays an important role. This makes me believe that 25 e6 might well be the key move. I have, however, learned from past "insane" positions, that I am out of my depth here. And while I would love to spend an hour finding the winning line, it's not clear to me that I could find it even given that much time. So, I'm going to turn over all the cards and check the game score. |
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Dec-23-07
 | | al wazir: How does white win after 25. e6 Qxe6! ? If 26. Nf6+ Nxf6 27. Rxe6 Rxe6 or 26. Neg5 Qxd1+ 27. Nxd1 hxg5, material is roughly even. |
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Dec-23-07
| | al wazir: <UdayanOwen>: You can use asterisks, e.g., @#$%! Or you can try foreign languages. <GM>'s Russian is weak and I doubt if they (or their swearword detector) know Magyar. But some of the kibitzers do . . . Maybe you know some Welsh? |
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Dec-23-07
 | | Jimfromprovidence: <patzer2> <25... fxe6 26. Neg5 hxg5 27. Bxg6 Re7 28. Qxg5 ;> I’m not seeing the win after 28…Qc4.
click for larger viewI think white should win, but I can't find a continuation that convincingly does this. |
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| Dec-23-07 | | patzer2: <al wazir> 25. e6 <Qxe6> 26. Ng3 26. Ng3 Nge5 27. Nxe5 Qd5 (27... Nxe5 28. Rxe5 Qxe5 29. Bxe5 Rxe5 30. Qd3 ) 28. Qxd5 Bxd5 29. f4 f6 30. Rd1 Nxe5 31. Rxd5  . |
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| Dec-23-07 | | willyfly: Even game. Insane Sunday.The focal point seems to be White's e5♙ which is attacked three times and defended only twice. I am also noticing Black's e8♖ is currently undefended. 25 ♘d6 talk about a multi-purpose move.
a) Opens the e-file to add a defender for the ♙
b) opens the b1-h7 diagonal for White's LS♗ to remove the g6♘
c) attacks the undefended ♖ and
d) also attacks the b7♗ which has formed a battery with the Black ♕ pointed directly at the mating square g2.
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Black will never stand for this.
25...♗xd6 26 exd6 ♖xe1+ then
27 ♕xe1 or 27 ♘xe1
alright - let's go back to move 26 and instead of capturing the ♗ we'll just push the ♙ 26 e6
if 26...fxe6 27 ♗xf6 wins a ♘ attacks a ♖
26 ♘f6 27 ♗xf6 gxf6 28 exf7+ ♔xf7 29 ♕xh6 Δ 30 ♗xg6+ and that's as far as I'm going - time to look
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okey - so it's Sunday |
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| Dec-23-07 | | patzer2: <Jimfromprovidence> Well I gave White the advantage after 25... fxe6 26. Neg5 hxg5 27. Bxg6 Re7 28. Qxg5  and not a win. However, after 28...Qc4 29. Ne5! (29...Nxe5 30. Rxe5 Qc6 31. f3 ) 29...Qd5 30. Be4 Qb3 31. Ng6 Nunn wins. |
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| Dec-23-07 | | aginis: looking for some input on the "cancelled" puzzle Spassky vs Beliavsky, 1988
thanks |
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Dec-23-07
| | Jimfromprovidence: <patzer2> <Well I gave White the advantage after 25... fxe6 26. Neg5 hxg5 27. Bxg6 Re7 28. Qxg5 and not a win. However, after 28...Qc4 29. Ne5! (29...Nxe5 30. Rxe5 Qc6 31. f3 ) 29...Qd5 30. Be4 Qb3 31. Ng6 Nunn wins.> I can’t refute it.
Black either loses his queen for a rook and a bishop 29...Qd5 30. Be4 Qxe4 31 Rxe4 Bxe4 or a rook for a bishop. 29...Qd5 30. Be4 Qb3 31. Ng6 etc. Well done!
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| Dec-23-07 | | traderdan: As a newbie and a relatively weak player, I would appreciate a brief comment which would explain why black resigned so quickly. I see white's relative position of strength, given some of the proposed continuations, but black does not appear to be a definite loser. What am I missing. |
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Dec-23-07
| | al wazir: <patzer2>: I think you meant 25...Qxe6 26. Ng3 Nge5 27. Nxe5 Qd5/Nxe5, etc. Thanks, that seems to work. |
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| Dec-23-07 | | patzer2: <al wazir> Thanks for correcting my poor job of copying and pasting. You're right. I meant 25... Qxe6 26. Ng3! Nge5 27. Nxe5 Qd5 (27... Nxe5 28. Rxe5 Qxe5 29. Bxe5 Rxe5 30. Qd3 ) 28. Qxd5 Bxd5 29. f4 f6 30. Rd1 Nxe5 31. Rxd5 . |
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| Dec-23-07 | | johnlspouge: <dzechiel>: Hi, David. Late, in desperation, I looked at Rc1 but did not mention it, so thanks for sharing your processes again. Misery loves company. The alternatives you examined I would call the "positional" ones. Your first (and my last) choice Nd4 seems to lead to incredible central domination. I would be very happy behind such a position, but it was not good enough for Nunn. <I have, however, learned from past "insane" positions, that I am out of my depth here.> Thanks for the calibration, but also the hope that I can learn something from Sunday puzzles. |
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| Dec-23-07 | | TrueBlue: I stared at the puzzle for 5 minutes and BLANK! Doesn't happen that often, usually I at least get wrong ideas. So let's see the solution ... |
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| Dec-23-07 | | TrueBlue: ok, I was trying to free the b1-h7 diagonal when I should have been considering the a1-b8 diagonal. Go figure :( Insane is just about right for this puzzle. |
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| Dec-24-07 | | patzer2: I find it interesting that the game Nunn vs E Shvidler, 1988 follows this one for the first twenty moves, when Nunn improves with 21. Ne4. Leads me to think it's possible Nunn did some analysis of this game and prepared an improvement for which Greenfeld was the lucky recipient (free pawn and free Bishop in exchange for his King). Black's last chance, not suprisingly was to prevent the bombshell 25. e6!! with 24...Ne6  with decent chances of equalizing. |
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| Dec-24-07 | | Boerboel Guy: I could see the threats but ...
this was just too tough for me!
Well played GM Nunn! |
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| Dec-24-07 | | znprdx: Although this was posted Sunday the 23rd - I timed out having rejected 25.e6 as not being convincing enough - failing to see Nunn's brilliant Bxg7 concept . There are numerous candidate moves which although quite dramatic fail miserably. Nevertheless I still believe 25.Nd6 to be both tactically, but more importantly strategically sound. This move guarantees either the win of the major exchange N+P for R or the minor exchange of N for B. At worst for white, the loss of the initiative: 25.Nd6 Bxd6[N] 26. e5xd6[B] Rxe1[R] 27.Nxe1[R](holds g2!)This delightful possibility could follow: 27...N(g)e5 28. Qd4 Qd5 29.Qh4! N(d)f3 30.Qd4 Nf5? 31.Qxd5[Q]:)
Merry Xmas indeed ... |
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| Dec-24-07 | | alphee: I saw and choose 25.e6 but that's the only one of the solution: "Passed pawns must be pushed" is the rule that convinced me even if I wasn't sure of the following moves. |
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| Dec-24-07 | | Riverbeast: Nunn is one of my favorite players, he was a brilliant tactician...also I think the youngest man ever to matriculate at Oxford University |
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| Dec-26-07 | | kevin86: A nice conclusion to this week's theme:Sacs in front of the enemy king. |
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| Feb-22-16 | | Jim Bartle: Nunn says there was a "beautiful forced win" with 27. exf7+ Kxf7 28. Qxh6 Bxg7 29. Nfg5+. |
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