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Later Kibitzing> |
| Sep-20-18 | | gofer: It's only when you realise how much work Be6 is doing that it becomes a little clearer that it is significantly overworked. So this starts to imply that Qd6 doesn't need to defend Nf5, because in some scenarios Nf5 is immune! <16 Rxb7+ ...>
White is already down a bishop and now throws a rook into the mixer too. Refusing the sacrifice leads to mate in about 8 or 9 more depending on where the king wanders off to. The nicest is probably <16 ... Kg8 17 Rxg7+ Bxg7 18 Ne7+!!! Kf7 19 fxe5+ Bf5 20 Rxf5+ Ke6 21 Qd5+ Kd7 22
Qxd6+ Ke8 23 Qc6+ Kd8 (Nd7 24 Qxa8+ mating) 24 Nd5+ mating> <16 ... Nxb7>
Okay, now I come to a slight cross-roads. Can I really risk going R+N+B down to open up black's king even more with Nxd6+??? Probably not, because that just brings Nb7 back into the action. But what about Nh6+!!! <17 Nh6+!!! gxh6> <18 fxe5+ Kg7>
<19 Bxh6! Kxh6> <20 Qxe6+ mating> ~~~
Yep. Very Pretty! |
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| Sep-20-18 | | mel gibson: What an amazing game.
The Black Queen got too greedy taking all those pawns -
letting the b file open up for White's Rook was the killer. |
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Sep-20-18
 | | patzer2: Completely missed this "medium" Thursday puzzle. I considered 16. Rxb7!! Nxb7 17. Qxb7?+ Kg8 18. Qxa8 Qc5+! (not 18...Bxf5?? 19. Qd5+ Be6 20. Qxe6#) 19. Kh1 Bxf5 -+ (-4.52 @ 30 ply, Stockfish 9), but that's obviously winning for black. What I missed was 16. Rxb7!! Nxb7 17. Nh6+! +- (mate-in-six, Stockfish 9) with a neat, 6-move or less mating web. I also did not expect 16...Kg8, when 17. Rxg7+! (mate-in-10, Stockfish 9) forces mate. P.S.: So where did Black go wrong? The losing move was 15...Be6?, allowing today's, Thursday solution 16. Rxb7+!! +- (mate-in-ten). Instead, 15...Ke8 ∓ (-0.92 @ 34 ply, Stockfish 9) would have left Black with the better game. Earlier, Black could have had winning chances with 12...Nxc3! 13. Nd4 Ne2+ 14. Bxe2 Qc5 15. Rfd1 f6 16. Rbc1 Qb6 17.Bh4 exd4 -?+ to -+ (-2.19 @ 34 ply, Stockfish 9). |
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| Sep-20-18 | | dumbgai: <mel gibson: What an amazing game.
The Black Queen got too greedy taking all those pawns - letting the b file open up for White's Rook was the killer.> Not really. As others have pointed out, black was winning until 15...Be6. |
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| Sep-20-18 | | Strelets: I really need to take a closer look at Kotronias' games. He's been in two puzzles this week and they've both been really impressive. |
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| Sep-20-18 | | Walter Glattke: 15.-Ke8 16.Nxd6+ (BxN Qf7#) Kd7 17.Nb5+ Ke8/Bd6 18.Nxc3 did you mean 15.-Ke8, and 15.-Be6 is a blunder!? |
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| Sep-20-18 | | Walter Glattke: Ah, I overlooked Pf4 |
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| Sep-20-18 | | Walter Glattke: 15.-Ke8 16.Nxd6+ Bxd6 17.Qxd6 Qd4+ 18.Qxd4 exd4 19.Rfe1+ Kf7!? 20.Re7+ Kf8
always better than 15.-Be6, The sac Bxf7+ seems to be incorrect. |
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Sep-20-18
 | | Jimfromprovidence: FYI...There are two beautiful ways for white to mate after 16 Rxb7+ Kg6.
click for larger view |
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Sep-20-18
 | | agb2002: White is one bishop and two pawns down.
Black threatens Bxd5.
The black knight protects b7 and e6. This suggests 16.Rxb7+: A) 16... Nxb7 17.Nh6+ (17.Qxb7+ Kg8 -17... Ke8 18.Nxg7+ Bxg7 19.Qe7#- and the attack seems to vanish -18.Qxa8 Qc5+ 19.Kh8 Bxf5-) 17... gxh6 (else 18.Qxe6+ looks winning) 18.fxe5 followed by Qxe6 seems to win. B) 16... Ke8 17.Qc6+ Bd7 (17...Nd7 18.Qxc3 wins) 18.Rxd7 Nxd7 (due to Re7+ etc.) 19.Qxc3 wins. C) 16... Kg8 17.Rxg7+ Bxg7 18.Ne7+ Kf7(8) 19.fxe5+ Ke8 20.Qxa8+ Kd7 21.Qc6+ Kd8 22.Qc8#. D) 16... Kh5 17.Nh4+ Kh5 18.g4+ Bxg4 (18... Kxg4 19.Qd1+ Kh3 20.Rf3+ and mate next) 19.Qf7+ g6 20.Qxh7+ Rxh7 21.Rxh7#. |
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Sep-20-18
| | agb2002: My line D should say 16... Kg6.
<Jim> I don't see the second way. |
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Sep-20-18
| | agb2002: I overlooked the black bishop in my line D: 21.Rxh7+ Bh6 22.Rxh6#. |
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Sep-20-18
| | Jimfromprovidence: <agb2002> <Jim> <I don't see the second way.> It's really sublime, Antonio.
After 16 Rxb7+ Kg6...
1) mate-in-6 (21 ply) 17.Nh4+ Kh5 18.g4+ Bxg4 (18...Kxg4 19 Qd1+ etc.) 19.Qf7+ g6 20.Qxh7+ Rxh7 21.Rxh7+ Bh6 22.Rxh6# 
click for larger view |
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| Sep-20-18 | | BxChess: <agb2002> <Jim>
There is a third line:
16. Rxb7+ Kg6
17. Nh4+ Kh5
18. Qd1+ Bg4
19. Qxg4+ Kxg4
20. h3+ Kg3
21. Nf5# |
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Sep-21-18
| | agb2002: <Jimfromprovidence: <agb2002> <Jim> <I don't see the second way.> It's really sublime, Antonio.
After 16 Rxb7+ Kg6...
1) mate-in-6 (21 ply) 17.Nh4+ Kh5 18.g4+ Bxg4 (18...Kxg4 19 Qd1+ etc.) 19.Qf7+ g6 20.Qxh7+ Rxh7 21.Rxh7+ Bh6 22.Rxh6#> That's the one I saw, except that Black's dsb disappeared momentarily from my mind! <BxChess: <agb2002> <Jim> There is a third line:
16. Rxb7+ Kg6
17. Nh4+ Kh5
18. Qd1+ Bg4
19. Qxg4+ Kxg4
20. h3+ Kg3
21. Nf5#>
I discarded this one due to 20... Qxh3. |
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Sep-21-18
| | agb2002: <Jim> The second line you mentioned is the one I was unable to find. |
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| Sep-21-18 | | mel gibson: <Sep-20-18 dumbgai: <mel gibson: What an amazing game. The Black Queen got too greedy taking all those pawns - letting the b file open up for White's Rook was the killer.> Not really. As others have pointed out, black was winning until 15...Be6.> Still - many a game was won by luring a Queen out to take pawns. |
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| Jun-10-22 | | Brenin: Another recycled POTD. 16 Rxb7+ is an obvious first move, but the follow-ups are harder to see, e.g. 16 ... Nxb7 17 Nh6+ (opening the f-file) gxh6 18 fxe5+, or 16 ... Kg6 17 Nh4+, or 16 ... Kg8 17 Rxg7+ Bxg7 18 Ne7+ Kf8 (or Kf7) 19 fxe5+. Black was doing fine until 15 ... Be6?, but his advantage was very delicately balanced: one error, and kaput. |
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| Jun-10-22 | | mel gibson: <Jun-10-22 Brenin: Another recycled POTD. 16 Rxb7+ is an obvious first move, but the follow-ups are harder to see, e.g. 16 ... Nxb7 17 Nh6+ (opening the f-file) gxh6 18 fxe5+, or 16 ... Kg6 17 Nh4+, or 16 ... Kg8 17 Rxg7+ Bxg7 18 Ne7+ Kf8 (or Kf7) 19 fxe5+. Black was doing fine until 15 ... Be6?, but his advantage was very delicately balanced: one error, and kaput.> Yes - I didn't find it easy to analyse. |
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| Jun-10-22 | | Cellist: I saw the first two moves, but then, as usual, I threw away the win with the simple 18. Qxa8: -2.72 (20 ply) 18...Kf7 19.Qa7+ Bd7 20.Qc7 Kg6 21.g4 Qd3 22.Ne7+ Kf7 23.fxe5+ Ke6 24.Qxd6+ Qxd6 25.exd6 Be5 26.Be3 Ne4 27.Nf5 Rg8 28.h3 Rb8 29.Bf4 Bxf4 30.Rxf4 Rb1+ 31.Rf1 Rxf1+ 32.Kxf1 Ke5 33.Nh4 Nxd6 34.Kg2 Kf4 35.Nf3 |
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Jun-10-22
 | | chrisowen: I bank log um fell Rxb7 abridge axled its achtung munch I eel garcon javelin c no sense buccaneer wc beowulf bad canyon Rxb7 ear; |
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| Jun-10-22 | | ByrneBabyByrne: Great game name. Could have also gone for Vas Defer-Ne5. |
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Jun-10-22
| | agb2002: Level 3: 16.?
Steinitz vs A Mongredien, 1862
click for larger view |
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Jun-10-22
 | | Bishoprick: At random times while on CG I get this message,"Internal Server Error
The server encountered an internal error or misconfiguration and was unable to complete your request. Please contact the server administrator at chess@chessgames.com to inform them of the time this error occurred, and the actions you performed just before this error. More information about this error may be available in the server error log. Apache/2.4.41 (Ubuntu) Server atwww.chessgames.com Port 443" Can't figure out how to contact Chessgames.com]
Please help. This is a real nuisance. |
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| Jun-11-22 | | mel gibson: <Jun-10-22
Premium Chessgames Member Bishoprick: At random times while on CG I get this message,"Internal Server Error The server encountered an internal error or misconfiguration and was unable to complete your request.>Yes -
yesterday it was really bad.
There is something wrong. |
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Later Kibitzing> |
Kibitzing
sac: 14.Bxf7+