User Profile: dalbertz

dalbertz
Member since Apr-27-06 · Last seen May-22-13

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   dalbertz has kibitzed 1335 times to chessgames [more...]

   Mar-23-13 Carlsen vs Radjabov, 2013

dalbertz: <Why spend a tempo on this when it would always be available to a later check anyway?> Save a tempo for later when it's more important? Seems like both are playing a waiting game right now, waiting for something to crack. But it seems to me that Carlsen has all the pressure ...

   Mar-07-13 Louis F Stumpers

dalbertz: <Sneaky: <dalbetz> <So the answer is both guess $50 and that's the price agreed.> I think you've been led astray. If I was the seller, and I knew you were going to bid $50, I would then bid $100. 75% of the time you'd pay $50 and 25% of the time you'd pay $100 for an

   Mar-03-13 Kenneth Rogoff

dalbertz: (1) The intellectual stance that a missionary might take on a given issue. (2) The sexual meaning. (3) The location or physical stance assumed by a missionary.

   Nov-23-10 The World vs N Pogonina, 2010

dalbertz: < OhioChessFan: <dalbertz suggests: 33.h4 Ra3 34. Nc4 Ba4 35. Qd2 Bxd1 36. Nxa3 Bb3 37. Qc3 Bd5 38. Nc2 g6 39. Nb4 Kg7 40. Nxd5 cxd5 41. Bf1 e5 42. dxe5 Nxe5 43. Nxe5 Bxe5 > I've got my engine running on other things, but 40. Ng5 looks playable.> A definite improvement,

   Nov-18-10 World Blitz Championship (2010)

dalbertz: Did anyone else notice how much trouble Carlsen had playing against anyone named "Boris"? :)

   Jul-16-10 O De la Riva Aguado vs Ermenkov, 2008

dalbertz: <23. Qh3 (thus threatening mate 24. Qh8# the next move, with the help of the pawn sitting on f6. Note that Black has no meaningful checks in reply, and all it's pieces are cut-off). Am I missing something huge here?> 23. Qh3 Qxg5+ 24. Kb1 Qxf6 and the h8 square is covered.

   Jun-14-10 Nigel Short

dalbertz: Well done, GM Short. And thanks for all the Chessbucks! :)

   May-07-10 Battle of the Brains 3, 2009

dalbertz: If 28...Qb8 someone might want to take a look at 29.Bc4 [DIAGRAM] It attacks the knight twice and prevents black from putting the rook on a2. Would that be of any use?

   May-06-10 Anand vs Topalov, 2010

dalbertz: <Train: <Tablebase draw.> That doesn't mean that Topalov finds all the right moves.> Correct. There are losing moves for Black in the tablebase.

   Apr-16-10 E Schallopp vs Blackburne, 1887

dalbertz: <<What about 47...Re5+! instead of 47...Rh4+?> Then <48.Rg5>. Either Black exchanges, or he retreats his rook and white remove his own rook from the g file. In both cases the black king isn't stalemated anymore.> 48.Rg5 would be an illegal move, since white would ...

indicates a reply to the comment.

< Earlier Kibitzing · PAGE 14 OF 77 · Later Kibitzing>
May-30-07		lopium: This is the analyze of the position with Rybka v.2.3. working more than 2 hours. Depth: 25 ,Time: 2:09:42,514, Nodes: 1.294.537.088, Nodes/sec: 170.333, Value: -1,10, Mainline: 37.Qd1 Rf8 38.f3 Kh8 39.Bxd4 Bxh3 40.Qe2 Rd8 41.Bc3 Rd3 42.e6 Nc1 43.Qf2 Rxc3

May-30-07		lopium: The idea of Boomie (37...Kh8 instead of 37...Rf8) gives to Rybka the following infomations: Depth: 24, Time: 33:35,030, Nodes: 324.759.664, Nodes/sec: 165.036, Value:-0,93 Mainline: Kh2 Rf8 Bxd4 Rd8 f3 Qh5 Kh1 Bxh3 Bxh3 Qxh3+ Kg1 Qg3+ Kh1 Rf8

May-30-07		dalbertz: ********** Analysis Marker ******** Analyzing 37.Qd1 Rf8 38. h4 (and others) Position being analyzed is: click for larger view

Jun-01-07		dalbertz: ********** Analysis Marker ******** Analyzing 37...Kh8 38. Kh2 Rf8 39. f3 Rd8 (and others) Position being analyzed is: click for larger view

Jun-02-07		TefthePersian: 39. f3 Qh5 40. Qe2 Bxh3 41. Bxh3 Rxf3 42. Qg2 Nd2 43. Qg4 Nf1+ 44. Kg2 Rg3+ 45. Qxg3 Nxg3 46. Kxg3 Qg6+ 47. Kf3 Qf7+ 48. Kg2 Qd5 49. Bf5 d3 50. Bc1 d2 51. Bxd2 Qxd2+ 52. Kf3 Qd5 53. Ke3 Kg8 54. Bg6 Kf8 55. Bh5 Ke7 56. Be2 g5 57. e6 Qf5 58. Bg4 Qg6 59. Be2 h5 60. Bc4 g4 But the lines aren't important, the endgame is lost.

Jun-04-07		classF: after 39. f3 Qh5 40. Qe2 Bxh3 41. Bxh3 Rxf3 42. Qg2 Nd2 43. Qg4 Nf1+ 44. Kg2 Rg3+ 45. Qxg3 Nxg3 46. Kxg3 Qg6 TogaII 1.2.1a 24-ply (-2.32) <47.Kf4> Qf7+ 48.Bf5 g6 49.Bxd4 Qxf5+

Jun-04-07		dalbertz: Copy from main forum: <Tabanus: 38...Rf8 39.f3 Qh5 40.Qe2 Bxh3 41.Bxh3 Rxf3 42.Qg2 Nd2 43.Qg4 Nf1+ 44.Kg2 Rg3+ 45.Qxg3 Nxg3 46.Kxg3: Rybka 2.2, 23-ply: 1. (-1.90) 46...Qg6+ 47.Kf3 Qf7+ 48.Kg2 Qd5 49.Bf5 d3 50.Bc1 d2 51.Bxd2 Qxd2+ 2. (-0.75) 46...d3 47.Bc1 Qg6+ 48.Kf3 Qf7+ 49.Ke3 d2 50.Bxd2 Qb3+ 51.Kd4 Qxh3>

Jun-04-07		amadeus: Two f3 Qh5 ... Bxd4 lines: 39.f3 <Qh5> <40.Bxd4> Rd8 41.Kg1 Qf7 42. Kf2 Qd7 43.Ke3 Qd5 44.f4 Qc4 45.Bf3 Qxb4 46.Bb2 Qc5 47.Rd4 Nxd4 48.Bxd4 Qa3 49.Kf2 Qa2 50.Ke3 Qh2 (-5.80/17) 39.f3 <Qh5> 40.Qe2 Bxh3 <41.Bxd4> Bf5 42.Kg1 Bxe4 43.Qxe4 Nd2 44.Qg4 Nxf3 45.Bxf3 Qxg4 46.Bxg4 Rf4 (-4.17/21)

Jun-05-07		Tabanus: 38...Rf8 39.f3 Qh5 40.Qe2 Bxh3 41.Bxh3 Rxf3 42.Qg2 Nd2 43.Qg4 Nf1+ 44.Kg2 Rg3+ 45.Qxg3 Nxg3 46.Kxg3 Qg6+ <47.Kf3> Qf7+ 48.Kg2 Qd5 49.Bf5 d3 50.Bc1 d2 51.Bxd2 Qxd2+ 52.Kf3, 24-ply: 1. (-2.79) 52...Qd5 53.Ke3 Kg8 54.Bg4 Qb3+ 2. (-2.52) 52...Qd1+ 53.Kf2 Qd5 54.Bg6 Qe6 3. (-2.48) 52...Qd3+ 53.Kf2 Qd5 54.Bg6 Qe6 4. (-2.45) 52...Qc3+ 53.Ke2 Qb2+ 54.Kd3 Qb3+ 38...Rf8 39.f3 Qh5 40.Qe2 Bxh3 41.Bxh3 Rxf3 42.Qg2 Nd2 43.Qg4 Nf1+ 44.Kg2 Rg3+ 45.Qxg3 Nxg3 46.Kxg3 Qg6+ <47.Kf4> Qf7+ 48.Bf5 g6 49.Bxd4 Qxf5+ 50.Ke3, 26-ply: 1. (-2.98) 50...Qe6 51.Rf4 b5 52.Rf6 Qb3+ 53.Ke4 Qc2+ 54.Ke3 Qc1+ 55.Ke2 Kg7 56.Rf2 Qc4+ 57.Ke3 2. (-2.98) 50...Qh3+ 51.Kd2 Qe6 52.Rf4 Kh7 53.Rf6 Qa2+ 54.Kd3 b5 55.Bc3 Qc4+ 56.Kd2 h5 57.Rd6

Jun-06-07		Tabanus: Endgame after 39.f3 Rd8: RV's line is 40.Qd3 b5 41.h4 Qf7 42.Bh3 Bc4 43.Qd1 Bd5 44.Rg4 Bxf3 45.Qf1 Rf8 46.Rg3 whereafter this is pretty forced: 47.Qf2 Ne4 48.Qxf3 Qxf3 49.Rxf3 Rxf3 50.Bxd4 with this position: click for larger view Rybka 2.2, 20-ply: 1. (-1.72) 50...g6 51.Bb6 Rb3 52.Ba5 Rb2+ 2. (-1.70) 50...Kg8 51.Bb6 Rf4 52.Bd7 Rxh4+ 3. (-1.69) 50...Nf2 51.Bf1 Rf4 52.Bc5 Ne4 4. (-1.66) 50...Rd3 51.Bb6 Rd5 52.e6 Rd2+ 5. (-1.66) 50...Rf4 51.Bd7 Nf6 52.exf6 Rxd4 6. (-1.54) 50...h5 51.Bb6 Rb3 52.Ba5 g5

Jun-08-07		classF: <Tabanus> for the above position, meaning after 40.Qd3 b5 41.h4 Qf7 42.Bh3 Bc4 43.Qd1 Bd5 44.Rg4 Bxf3 45.Qf1 Rf8 46.Rg3 Nd2 47.Qf2 (or 47.Qd3) Ne4 48.Qxf3 Qxf3 49.Rxf3 Rxf3 50.Bxd4, 29-ply TogaII 1.2.1a (-3.41) 50...Rf4 51.Kg2 (51.Bd7 Rxh4 -3.41/26) Rxh4 52.Bc8 Ng5 53.Bc5 Re4 54.Bd6 Nf7 55.Kf3 Rd4 56.Bc5 Nxe5

Jun-10-07		dalbertz: ********** Analysis Marker ******** Analyzing ...Qf5 40. Kg1 Bd5 click for larger view

Jun-11-07		dalbertz: Here's a game I played out using Fritz9 after 40...Bd5 for what it's worth. The path to a black win seems unavoidable. Fritz9 continues to prefer Bd5 as the answer to 40.Kg1. 40. Kg1 Bd5 41. Qe2 Rc8 42. e6 Nc1 43. Qf3 d3 44. Qg3 Rg8 45. Qh4 d2 46. Qxh6+ Qh7 47. Qxh7+ Kxh7 48. Bf3 Nd3 49. Rd4 Bxf3 50. Rxd3 (if not Rxd3, it's mate in 5) 50... d1=Q+ 51. Rxd1 Bxd1 After this exchange, the end seems inevitable. 52. Bd4 b5 53. e7 Re8 54. Bc5 Kg6 55. Kf2 Rh8 56. Ke3 Kf7 57. Kd4 Rxh3 58. Bd6 Bg4 59. Kc5 (evals steadily moving upward) 59... Bd7 60. Kb6 Rh6 61. Kc5 Ke6 62. Be5 g6 63. Bg7 Rh4 64. Be5 g5 It's all over but the shouting here, I think. Superficial play from this points gets to click for larger view a tablebase win for black in 10.

Jun-12-07		Temugin73: 40...Bd5 41.Rxd4 Nxd4 42.Bxd5 Nc2 43.Qf3 Nxb4 44.Be4 Qxf4 45.Qxf4 Rxf4 46.Bg2 g5 47.e6+ Kg8 48.Be5 Kf8 49.Bd6+ Ke8 50.Bxf4 gxf4 51.Kf2 Nc2 52.Ke2 Ke7 53.Bd5 Nd4+ 54.Kd3 Nxe6 55.Ke4 b5 (-1,56) 41.Re2 Bxg2 42.Rxg2 Qxh3 43.Qe1 Rxf4 44.Qg3 Qxg3 45.Rxg3 Nd2 46.e6 b5 47.e7 Re4 48.Rd3 Nc4 49.Bxd4 Rxe7 (-1,81) 41.Qd3 Bxe4 42.Qxe4 Qxe4 43.Bxe4 Rxf4 44.Bd5 Nd2 45.e6 Nf3+ 46.Bxf3 Rxf3 47.Bxd4 Kg8 48.Kg2 Rf4 49.Bxb6 Rxb4 50.e7 Kf7 51.Bc5 Rb5 52.Bd6 h5 53.Kg3 Rd5 54.Bb4 g5 55.Kg2 Ke8 (-2,34) 41.Qc2 Bxe4 42.Qxe4 Qxe4 43.Bxe4 Rxf4 44.Bd5 Nd2 45.e6 Nf3+ 46.Kh1 Nh4 47.e7 Rf1+ 48.Kh2 Re1 49.Bxd4 Nf5 50.Bxb6 Nxe7 51.Ba8 Nf5 52.Kg2 Ne3+ 53.Kf2 Nc2 54.Bc5 Rb1 55.Be4 Rb2 56.Bxc2 Rxc2 (-1,91) by my archaeological fritz..

Jun-14-07		dalbertz: Thought I would save the old analysis from the last forum assignment here. Analysis by Fritz9 for 40... Bd5 and others: 1. (-1.82): 40...Bd5 41.Re2 Bxg2 42.Rxg2 Qxh3 43.Qe1 Rxf4 44.Qg3 Qxg3 45.Rxg3 Nd2 46.e6 b5 47.e7 Re4 4. (-0.82): 40...Rf7 41.Bxd4 Rd7 42.Kh2 Bd5 43.e6 Bxe6 44.Qg1 Nd2 45.Rxe6 Qxe6 46.Bxb6 5. (-0.72): 40...Kh7 41.Bxd4 Rd8 42.Qd3 Qg6 43.Qe3 Nxd4 44.Rxd4 Bxh3 45.Rd2 Rxd2 46.Qxd2 Bxg2 47.Qxg2 b5 48.Kh2 _________________________________________ Here is a more in-depth (20/98) look from Fritz9 at 40...Bd5 1. (-1.60): 41.Re2 Bxg2 42.Rxg2 Qxh3 43.Qe1 Rxf4 44.e6 Rg4 45.Rxg4 Qxg4+ 46.Kh2 Qh5+ 47.Kg2 Qg6+ 48.Kh2 Qc2+ 49.Kg3 Nd2 2. (-2.26): 41.Qe2 Rc8 42.Qd3 Qg6 43.f5 Qxf5 44.Rxd4 Nxd4 45.Qxf5 Nxf5 46.Bxd5 Rc2 47.Ba3 Re2 48.e6 3. (-2.43): 41.Rxd4 Nxd4 42.Bxd5 Ne6 43.Bxe6 Qxe6 44.Qf3 Qg6+ 45.Kh2 Qc2+ 46.Qg2 Qxg2+ 47.Kxg2 Rxf4 4. (-2.43): 41.Qc2 Nd2 42.Qxd2 Bxe4 43.Qxd4 Bxg2

Jun-14-07		dalbertz: ********** Analysis Marker ******** Analyzing 41.Qd3 Qg6 42.Kh1 and others Position being analyzed: click for larger view

Jun-16-07		dalbertz: ********** Analysis Marker ******** Analyzing 41...Qxf4 42. Rd3 Qxe5 43. Rxb3 and others Position being analyzed: click for larger view

Jun-19-07		Artar1: 42...Qxe5 42.Rf3 Qxe5 <43.Rd3> Bc4 44.Rxb3 Bxb3 45.Qxb3 Qe1+ 46.Kh2 Qf2 47.Ba1 Qf4+ 48.Qg3 Qxg3+ 49.Kxg3 d3 50.Bf3 d2 51.Bd1 Re8 52.Bd4 Re1 53.Bf3 b5 54.h4 d1Q 55.Bxd1 Rxd1 56.Bc5 Kg8 �+; Eval = -5.27 @ 21�ply

Jun-19-07		Tabanus: <42...Qxe5 43.Rd3 and others (not 43.Rf2, 43.Rxb3, 43.Qc2, 43.Kh1, and 43.b5)> Position after 43.Rd3: click for larger view From RV, 27-ply: 8. (-4.05): 43.Rd3 Bc4 44.Rxb3 Bxb3 45.Qxb3 Qe1+ From Artar1: 43...Bc4 44.Rxb3 Bxb3 45.Qxb3 Qe1+ 46.Kh2 Qf2 47.Ba1 Qf4+ 48.Qg3 Qxg3+ 49.Kxg3 d3 50.Bf3 d2 51.Bd1 Re8 52.Bd4 Re1 53.Bf3 b5 54.h4 d1Q 55.Bxd1 Rxd1 56.Bc5 Kg8 -5.27/21 After 43...Bc4 <44.Rf3> there is 44...Re8 45.Rxb3 (45.Rf2 Qg3 -3.93/18) Bxb3 46.Qxb3 Qe1+ 47.Kh2 Re3 -3.74/22

Jun-22-07		Tabanus: After 43.Qf1 Nd2 44.Rf8+ Bg8, Rybka 2.2 20-ply: 1. (-2.82) 45.Rf5 Qd6 46.Qf2 Qxb4 47.Ba1 Qb1+ 2. (-3.59) 45.Qf2 Rxf8 46.Qxf8 Qe1+ 47.Kh2 Qe3 3. (-3.59) 45.Qf4 Qe1+ 46.Kh2 Rxf8 47.Qxf8 Qe3 4. (-3.64) 45.Qf7 Qe3+ 46.Kh1 Rxf8 47.Qxf8 Nc4 5. (-3.64) 45.Qf5 Qxf5 46.Rxf5 Nc4 47.Ba1 d3

Jun-22-07		charms: Apparently, 43. Qf1 Nd2?! is not good as after 44. Rxf8+ Rxf8 45. Qxf8+ Kh7 46. Qf2 the Knight has to return to b3. I am currently looking at 43. Qf1 Bd5, which seems to keep a firmer grip. After 44. Rf2 Qe3 45.Qe2 (45.Qd1 loses to the simple 45... Rf8 46. Qe2 Rxf2 47. Qxf2 Qxf2+ 48. Kxf2 Bxg2 49. Kxg2, where Black can force the exchange of the bishop with d3-d2 and obtain a winning endgame.) 45... Qxe2 46. Rxe2 d3 47. Re1 d2 48. Rd1 Bf7 49. Bf3 Bg6 50. Kf2 Rf8! (50... Bc2 Rg1 is less clear) 51. Rg1 Rxf3 52. Kxf3 d1=Q+ 53. Rxd1 Bh5+ is a nice finish. I can imagine that there is a sensible alternative to Rf2, eg 46. Qf2! is a sensible move, as after 46... Bxg2 White can try the immediate 47. Qf8+ hoping for a perpetual. (MarkThornton has pointed out that alternatives are losing for WHite.) But here, Black must demonstrate some accuracy: 47... Kh7 48. Qf5+ Kg8 49. Qc8+ Kf7 (so far, this is forced) and now: a) 50. Qd7+ Kf6 51. Qd6+ (51. Qd8 Kg6) 51... Kg5 52. Qd8+ Kg8 53. Qxb6+ (for example) 53... Kh7 54. Kxg2 Qd2+ b) 50. Qc7 Kg6 is transposing into a). c) 50. Qf5+ is impossible because of 50... Ke7 51. Kxg2, and 51... Qg5+ is winning again. (We don't need 51.. Qd2+ 52. Kg3 Qxb2.)

Jun-22-07		charms: Okay, 43. Qf1 Bd2 is being played. 44. Rf5 Qe3+ 45. Kh2 Qd2 click for larger view a) 46. Rf8+ Rxf8 48. Qxf8+ Bg8 49. Ba3 is hopeless for White; b) 46. Qf2 Qxf2 47. Rxf2 d3 48. Bxd5 Rxd5 49. Rf8+ (after 47. Rf1 Nd2! all is over) 49... Kh7 50. Rf7 Nd4 51. Bc3 Nf5 52. Bd2 Kg6 53. Rb7 b5, and there is nothing to stop Nd4-b3, exchanging the bishop and reaching a clearcut winning endgame. c) 46. Rf2 Qxb4 47. Bxd5 Qd6+ 48. Kg1 Qxd5 is the variation that leaves the most pieces on the board. Nevertheless, Black has formidably placed pieces, and is three pawns up, so it is hard to believe that White wants to play on in this position. click for larger view

Jun-22-07		charms: After 44. Rf5 Qe3+, White has nothing better than 45. Kh2: a) 45. Rf2? cannot be better than the immediate 44. Rf2, which is losing. b) 45. Kh1 Bxg2+ 46. Qxg2 Qe1+ 47. Kh2 Qxb4 48. Rf3 Nd2! 49. Rf7 Rg8 50. Ba1 Qd6+ 51. Kh1 Qe5 . c) 45. Qf2 Qxf5+ 46. Rxf2 (Kxf2 Bxg2 is hopeless) 46... d3 and Black wins the endgame, as white must exchange everything to get rid of the passed pawn.

Jun-22-07		Tabanus: 43.Qf1 Nd2 44.Rf8+ Bg8 45.Rf5, 22-ply: 1. (-3.05) 45...Qd6 46.Qf2 Qxb4 47.Ba1 Qb1+ 2. (-3.00) 45...Qe6 46.Qf2 Nc4 47.Rf4 d3 3. (-2.38) 45...Qe3+ 46.Qf2 Nc4 47.Qxe3 dxe3

Jun-29-07		dalbertz: ********** Analysis Marker ******** Analyzing 45... Qf2 and others

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