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Mar-28-09
 | | Jonathan Sarfati: I understand that old theory was that the defender should head for a "fortress" with ♘g7, yet computers showed that this could be broken. From what IMlday says, it was still by far the strongest resistance. Quite an elegant demonstration of the long-range power of the criss-crossing ♗s, I suppose with 101... ♘e7+ 102. ♔h7 ♘ any 103. ♗a3+ ♘e7 104. ♔h6 forcing ... ♔g8 losing the ♘. |
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Mar-28-09
 | | IMlday: Bent Larsen explained this ending to me in 1968 as a draw because of the 50-move rule and the N/g7, K/f6 extra obstinate as the light-squared ♗ is cramped off the e8-h5 diagonal. If d9 or i4 were available squares then progress would be faster. |
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| Mar-28-09 | | AnalyzeThis: It would have been a draw because I don't think that there were extensions to the 50 move rule then, were there? If he couldn't see how you could win in 50 moves he was right. I guess there are ways to win a longer time period. Me, I'll go to my grave not having taking the time to figure this one out. |
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| Mar-29-09 | | Benzol: This ending has cropped up more often than I realized. Endgame Explorer: N vs BB |
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| Oct-22-09 | | Manic: While the ending was well played by white, 63...Bd5?? seems to indicate black's endgame knowledge is quite poor. Almost anyone would straight away trade off for the wrong-colour bishop ending. If white's king blocks black's king from the corner the knight can always stop the advance of the pawn. |
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| Dec-04-10 | | kevin86: From what I understand,BB vs n is a draw because any winning procedure would exceed the 50 move limit. It is however,the best possible winning chances in the two pieces vs one scanario. Funny,two knights cannot even force a win against a bear king-two against a piece and a king,an absolute suicide is necessary for the one piece player to lose. Here is a joke position :
click for larger view |
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Feb-18-13
 | | FSR: Two bishops versus a knight was thought to be a theoretical draw until computers proved otherwise c. 1990. It is often possible (at least in theory) to win the ending within 50 moves. Even in practice, the superior side has often succeeded in winning - 10 wins out of 19 games in CG.com's database. Endgame Explorer: BB vs N As IM Day indicated, the correct defense is to plant your knight on one of the fianchetto squares (b2, g2, b7, g7) and hover around the outside of it with your king - for example, N on b7, king moving between b6 and c7. If your opponent breaks down that semi-fortress, pack your bags and head down the board to another fianchetto square. P Popovic vs Korchnoi, 1984 is a good example of successful defense. Play it out from move 70 on. |
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Feb-22-13
 | | mistermac: This is an ending which I have played around with for years. I never knew the improbable situation had cropped up until <perfidious> pointed it out today on my forum. To study it is of academic interest rather than practical, but perhaps it would yield an insight ito how the pieces co-operate when there is sparse extra material, especially a pawn or two. Any ideas, apart from comment here, as to how to go about completing the task in hand, whether assurance of a draw for N side, or win for BB side of argument? A little more complicated than mate with BN vs zilch. |
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| Jun-08-13 | | tbentley: 93...Nd6 is theoretically mate in 51, while 93...Kg7 is mate in 28. |
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| Sep-09-22 | | areknames: I was expecting this pun (or variation), the unkown was of course what game would be picked. At first glance, not a bad choice. |
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| Sep-09-22 | | Brenin: I would have preferred a game won with an active Q, rather than one where the Qs disappear in the opening.. |
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Sep-09-22
 | | OhioChessFan: It's after all a King's Indian, King's Knight Variation. |
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Sep-09-22
 | | HeMateMe: Seems to be a royals reference... |
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Sep-09-22
 | | Teyss: A most timely pun. <Brenin> Indeed, if it was intended as a metaphor that the Qs disappear, they should have stayed much longer on the board. I had to look why Black resigned, here it is for other patzers:
101...Ke7 102.Kg7 wins the N.
101...Ke8 102.Kg7+ and 103.Kxg8.
101...Ne7+ 102.Kh7 Nmoves 103.Ba3+ Ne7 (forced) 104.Kh6 Kg8 105.Bxe7. Or 102.Kh6 Nmoves 103.Ba3+ Ne7 104.B on a3 moves on the diagonal (not Kh7?? stalemate). |
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Sep-09-22
 | | MissScarlett: Long to Rayne over us. |
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Sep-09-22
 | | piltdown man: Who died and made this an appropriate pun? |
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Sep-09-22
| | ajk68: At move 36 white has a dominant position! Space, bishop pair, pawn structure. If black calculated move 33, he did so quite poorly. The subsequent exchanges leave black much worse off. And by move 41, white is even more dominant. Black's pawn structure is shattered. 63...Bd5?? , Bxa4 is clearly the right move. This removes the bishop which will control the queening square. |
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| Sep-09-22 | | goodevans: <FSR: [...] As IM Day indicated, the correct defense is to plant your knight on one of the fianchetto squares...> Ray Keene clearly knew this, hence his comment to Black's 86th move (which I didn't understand until I read <FSR>'s post). |
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Sep-09-22
 | | ray keene: Thanks / such long games don’t often get published. |
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Sep-09-22
 | | Retireborn: Personally I love playing over such games, and the longer the better! Ray, this is a bit of a long shot, but do you by any chance remember what round this game was played in? |
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Sep-09-22
| | ray keene: Yes it was memorably the last round and everyone ( apart from Pomar who had clearly won first prize) had to wait till way past midnight for their prizes since this game affected all positions from second downwards. |
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| Sep-09-22 | | Cheapo by the Dozen: Given how long Black's king survived, I find the pun to be very good, all timeliness concerns even aside. |
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Sep-09-22
| | Retireborn: Thanks Ray, good to hear from the horse's mouth, as it were. A crosstable can be seen here, for those interested:- https://www.belgianchesshistory.be/... |
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Sep-09-22
| | Teyss: Hi Ray, thanks for posting here and for your insight on the game. Impressive endgame technique; with this and <FSR>'s helpful comment I learned something about N vs 2Bs. Sincere condolences for the loss affecting your country. The Queen was respected worldwide and rightfully even more so in Britain. May she rest in peace. |
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Sep-28-22
 | | Fusilli: <FSR> <As IM Day indicated, the correct defense is to plant your knight on one of the fianchetto squares (b2, g2, b7, g7) and hover around the outside of it with your king - for example, N on b7, king moving between b6 and c7. If your opponent breaks down that semi-fortress, pack your bags and head down the board to another fianchetto square. P Popovic vs Korchnoi, 1984 is a good example of successful defense. Play it out from move 70 on.> Great to know this, <FSR>. I just played over the game you suggested. Great defense lesson from Korchnoi. |
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