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| Jul-12-06 | | DexterGordon: How should Black follow up after <panthercat's> line #8: 30. dxe4 Qg2+ 31. Ke1 Qg1+ 32. Nf1 Qxf1+ 33. Kd2? Perhaps 33...Kd7, and then push the f-pawn? There sure are a lot of checks if the White Queen gets behind the lines. |
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| Jul-12-06 | | RandomVisitor: <azchess>27...Nxf3 28.Nxf3 Qg7+ 29.Ng5 Bd7 30.Kf2 hxg5 31.h6 Qg6 32.h7 gxh4 33.h8=Q+ Kb7 34.Qxe5 or 34.Qxh4  |
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| Jul-12-06 | | Fezzik: I think White showed a bit too much respect for Black here. I would have waited for 31...Qg1+ to resign. After all, 31...Qf1+?? should give Black a perpetual! |
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| Jul-12-06 | | jahhaj: <DexterGordon> I would say 33...Kb7 so the black king can hide out on a6, followed by pushing the f pawn. |
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| Jul-12-06 | | Ziggy2016: Anyone wana take a look at my analysis? Appreciate any input. 30. dxe4 Qg2+ 31. Ke1 Qg1+ 32. Nf1 Qxf1+ 33. Kd2 Kb7 34. Qe7+ (34. Qe1 Qxe1+
35. Kxe1 Bg2) 34... Ka6 35. Qxe5 (35. b4 Qf2+ 36. Kc1 Qe3+ 37. Kb1) (35. Qe8 f3
36. a4 f2) 35... f3 36. Qg3 f2
<jahhaj: I would say 33...Kb7 so the black king can hide out on a6, followed by pushing the f pawn.> I followed the same path. |
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| Jul-12-06 | | mig55: dextergordeon, after Kd2 black plays Bd7 and wins... |
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| Jul-12-06 | | YouRang: Found it. I knew that I (black) had to get my knight out of the way of my queen, and do it forcingly, so the clearance-sac 29...Nxe4+ was rather obvious. The reply 30. Nxe4? was just a blunder, leading to quick mate. But after 30. dxe4, I can regain my knight a pawn to the good with 30...Qg2+ 31. Ke1 Qg1+ 32. Nf1 Qxf1+ Kd2, and now I am a pawn to the good with a dangerous passed pawn on f3. This should be a win as long as I don't allow white to get counterplay (potential for perpetual check). |
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| Jul-12-06 | | beenthere240: Perhaps after 33. Kd2 black plays Qd2+, 34. king any, then f3 (pushing the pawn and sealing in the white bishop. 35. Qe7+ is met by Bd7 |
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| Jul-12-06 | | YouRang: <Ziggy2016: Anyone wana take a look at my analysis? Appreciate any input.
30. dxe4 Qg2+ 31. Ke1 Qg1+ 32. Nf1 Qxf1+ 33. Kd2 Kb7 34. Qe7+ (34. Qe1 Qxe1+ 35. Kxe1 Bg2) 34... Ka6 35. Qxe5 (35. b4 Qf2+ 36. Kc1 Qe3+ 37. Kb1) (35. Qe8 f3 36. a4 f2) 35... f3 36. Qg3 f2> Hi Ziggy -- this is an example of what I was saying about not allowing counterplay. :-) In your line, after 34. Qe7+, we reach this position (black to move):
click for larger view
After 34...Ka6??, white has 35. Be2+! winning black's queen. |
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| Jul-12-06 | | DexterGordon: Thanks, <jahhaj>! Given <YouRang's> post, however, it looks like things aren't so easy. Maybe Kd7 is the better way to go after all, trying to stop the incursion with something like: 33...Qg2+ 34.Kc1 Kd7 35.Qf6 Be6 and White wins the e-pawn but has no checks. Pity that 33...Qg2+ 34.Kc1 Qg5 doesn't work (35.Qxg5 hxg5 36.h6!) |
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| Jul-12-06 | | Ziggy2016: Well, that refutes my lines. So now I'm thinking either 33...f3 with the same idea to evacuate the king to a6 if he gets chased around or 33...Bd7 perhaps. But on 33...f3 34.Qd1 looks stronger. |
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| Jul-12-06 | | YouRang: I am thinking that after the "main" line: 30. dxe4 Qg2+ 31. Ke1 Qg1+ 32. Nf1 Qxf1+ 33. Kd2, black is best with: 33...Qg2+
34. Kc1 Bd7 (bishop moves to safe place AND guards against queen check) Now, it appears that white's e-pawn will fall, and Black's king is adequately defended. The passed pawns should produce a win shortly. |
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| Jul-12-06 | | Ziggy2016: <YouRang>, your line (33...Qg2+) seems sound but there is still plenty of play in the position, eg: 30. dxe4 Qg2+ 31. Ke1 Qg1+ 32. Nf1 Qxf1+ 33. Kd2 Qg2+ 34. Kc1 (34. Kd3 Qf1+ 35.
Be2 c4+ 36. Kxc4 Qxe2+) 34... Bd7 35. Qe1 (35. Qf6 Qxe4 (35... Qg5 36. Qxg5
hxg5 37. h6) 36. Qxh6 Qe3+ 37. Kb1 Qe1 38. Kc1 f3) 35... Qxh2 36. c3 Bc6 37.
Bf3 b5 38. cxd4 cxd4 39. Qa5+ Kb7 |
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| Jul-12-06 | | wharfrat: <yourang> and <Ziggy>. I agree with <yourang>'s suggestion that 33...Qg2+ and 34...Bd7 is the simplest win for Black. I also agree with <ziggy>'s conclusion regarding 35.Qf6, Qe4; 36.Qh6. However, after 35.Qe1, isn't 35...f3 winning immediately? |
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| Jul-12-06 | | Castle In The Sky: This was much easier than Monday or Tuesday as problem presents only one possible correct move very clearly. |
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| Jul-12-06 | | Ziggy2016: <wharfrat> It appears to be. ;) |
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| Jul-12-06 | | YouRang: I think that one can safely say that today's puzzle doesn't lead to any quick win for black. At best, it leaves black 'better', and probably winning with very careful play. But White certainly has plenty of fight left. |
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| Jul-12-06 | | EmperorAtahualpa: I was first thinking of 29...Nf3, then spotted the refutation, and only then considered 29...Nxe4+! So it took me a little longer...a little more than a minute. |
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Jul-12-06
 | | LIFE Master AJ: A fairly nice puzzle.
The first move was obvious, but you still have to know the pattern, (epaulette mate) to be able to find the solution. Also - this is another good example of "linear calculation." (I.e., one or two candidate moves, and the variations don't have a lot of sidelines. You just have to be able to calculate!) I always work from the diagram ... or you could set up a chess board. (Its also best if you set yourself a time limit, and write down your ideas for complicated problems.) |
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| Jul-12-06 | | panthercat: <dextergordon> I don't think 33...Kd7 works to stop the incursion, as after 34. Bg4+ black either has to lose the bishop or exchange bishops with check, after which white gets the initiative to harass the black king in the back ranks. |
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| Jul-12-06 | | Ziggy2016: It's like <YouRang> says but it should be stressed that black crashes through in every variation. |
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| Jul-12-06 | | zb2cr: Found the solution. The line 30. dxe4 gives White some chances; to me, it looks as if once Black goes into <YouRang>'s line, 33. ... Qg2+; 34. Kc1, Bd7, White's
best is 35. Qf6. Then after 35. ... Qxe4, White can take off Black's KRP. Although the non-obvious move 36. Qf7, threatening to pile up on the pinned Bishop, might be better for White. |
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| Jul-13-06 | | kevin86: I performed the operation-and the patient died: I got the solution,but I don't know how to continue :( |
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| Jul-13-06 | | kevin86: <DutchDunce> I see the corn. Are you from Iowa? |
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| Jul-13-06 | | zb2cr: <kevin86>,
Try striving for ... f3. In the lines I have tried, once Black safely achieves that move, White's position comes apart like tissue paper. I think <YouRang>'s cautious line works well. Here's a sample variation: 30. dxe4, Qg2+; 31. Ke1, Qg1+; 32. Nf1, Qxf1+; 33. Kd2, Qg2+; 34. Kc1, Bd7; 35. Qf6, Qxe4; 36. Qf7, Qe3+; 37. Kb1, Qg1; 38. Kc1, Qg5. Now White
can't block the advance with 39. Bf3 because of 39. ... Qg1+; 40. Kd2, Qe3+ winning the Bishop. So I think he's forced to play 39. Kb1, e4 and to me it looks like White can no longer stop ... f3. |
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Kibitzing
sac: 29...Nxe4+