|Oct-29-17|| ||virginmind: 24.Qxd5! Ouch!|
|Dec-06-19|| ||Walter Glattke: 24.-Qe7 White advantage|
|Dec-06-19|| ||EIDorado: Idiotic comment:
The white has dominance over d and e columns.
24.Qxd5 Qxd5 25.Rxd5 Ree8 26.Rd1
After: 24. ... Bxd5 25.Rxc8+ Nd8 26.Bc4 Rxc4 27.bxc4 black is much worse.
|Dec-06-19|| ||areknames: 24.Qxd5 which either wins a pawn and probably the game (24...Qxd5 25.Rxd5 Ree8) or triumphs in a spectacular fashion after 24...Bxd5. Black's Kn is well placed on e4 so 21...Ng5 looks quite clumsy, why not a6 or Qe6 or another sensible move and let White come up with something.|
|Dec-06-19|| ||An Englishman: Good Evening: Solved it, but now have a new puzzle--why is this system called "Wimpy?"|
|Dec-06-19|| ||mel gibson: Dubious puzzle but an exciting line.
I chose the same move as Stockfish 10 which is different:
(24. Nd4 (♘f3-d4 ♖e4-e8
♘d4xc6 b7xc6 ♕d3-f5 ♘f7-h6 ♕f5-h3 ♘h6-f7 ♖d1-c1 ♖c8-c7 ♕h3-f5 ♘f7-e5 f2-f4
♘e5-g6 ♕f5-h5 ♖e8xe3 ♗b2-d4 ♖e3-e4 ♗d4-c5 ♕d6-d7 ♗e2-d3 ♖e4-e8 b3-b4 ♘g6-f8
♗c5-d4 ♕d7-f7 ♕h5xf7+ ♔g8xf7 ♖c2xc6 ♖e8-e1+ ♖c1xe1 ♖c7xc6 b4-b5 ♖c6-e6
♖e1-b1 ♖e6-e7 a4-a5 ♘f8-e6 ♗d4-f2 g7-g6 b5-b6 a7xb6 ♖b1xb6) +2.12/38 246)
score for White +2.12 depth 38
|Dec-06-19|| ||OhioChessFan: Found it, although I played 33. axb6.|
|Dec-06-19|| ||malt: 26.Ba3 looks good.|
|Dec-06-19|| ||King.Arthur.Brazil: I do not saw the direct 24.♕xd5 although the sequence after that was immediately found by me. However, I chose the move 29. ♗a3, where, the capture is quickly win to white with: 29...♕xa3 30. ♖xc7
♘c6 31. ♘d4 ♕f8 32. ♖xb7 then, a) 32...♘e5 33. ♘e6..., b) 32...♘e7 33.♘e6, c)32...♘xd4 33. ♖xd4 h6 34. ♖xa7 ♕a3 35. ♖dd7... easy end-of-game, d) 32...♘b4 33.♘e6..., e) 32...♘d8?? 33.Tb8 lose the ♘ and the ♕. Therefore, 32...♕c8} (is ▢), 33.♖dd7 ♘xd4 34. exd4 ♕f8 35. ♖xa7 g6 36. ♖xh7 g5 37. ♖ag7+ ♕xg7 38. ♖xg7+ ♔xg7 39. a5 end. For the case, where there is no capture, like 29... ♕f7 30. ♖dxd8+ ♗xd8 31. ♖xd8+ ♕f8 32. ♖xf8# or 29...♕e6 30. ♖xc7 ♘c6 31. ♖dd7 h6 32. ♖xg7+ ♔h8 33. ♖h7+ ♔g8 34. ♖cg7# win too.|
|Dec-06-19|| ||Ceri Evans: I found 24. Qxd5 easier to work out than 24. Nd4.|
I ran my SF to compare the lines and it reported:
click for larger view
Engine: Stockfish 10 64 Ceri (8192 MB)
38 +2.25 24.Nd4 Ree8 25.Nxc6 bxc6 26.Qf5 Rc7 27.Bd3 g6 28.Qxf6 Qxf6 29.Bxf6 Ne5 30.Ba6 Kf7 31.Bxe5 Rxe5 32.Rdc1 Kf6 33.Kg2 Re6 34.Rc5 Kg7 35.Bb5 d4 36.exd4 Rd7 37.Rxc6
38 +2.03 24.Qxd5 Qxd5 25.Rxd5 Ree8 26.Rd1 Be5 27.Nxe5 Nxe5 28.Bxe5 fxe5 29.a5 Kf8 30.f3 Ke7 31.Rc5 e4 32.f4 Red8 33.Rc4 h6 34.Kf2 Rxd1 35.Bxd1 Rd8
36.Rd4 Rd7 37.b4
38 +1.71 24.Bf1 Ree8 25.Bg2 Rcd8 26.Nd4 Bd7 27.Ne2 Qb4 28.h3 Be6 29.Nd4 Ne5 30.Qd2 Qxd2 31.Rcxd2 Bf7 32.Ne2 Nc6 33.Bxd5 a6 34.Kg2 Bxd5+ 35.Rxd5 Rxd5 36.Rxd5 Kf7 37.Kf3
best move: Nf3-d4 time: 9:55.157 min n/s: 14.119.052 nodes: 8.403.010.834
|Dec-06-19|| ||patzer2: As <mel gibson> observes, for today's Friday puzzle (24.?), Stockfish 10 evaluates 24. Nd4 +- (+2.50 @ 38 ply) as stronger than 24. Qxd5! +- (+1.93 @ 38 ply).|
I picked 24. Qxd5! because I was intrigued by the possibility of forcing Black into a pair of awkward pins after the game continuation 24. Qxd5! Bxd5?? 25. Rxc8+ Nd8 26. Bc4! +- (+6.93 @ 28 ply, Stockfish 10).
However, what I missed is Black isn't forced to play the blunder <24...Bxd5??>, but instead can keep the material loss to only a pawn after 24. Qxd5! Qxd5! 25. Rxd5 Ree8 ± to +- (+1.96 @ 34 ply, Stockfish 10 diagram below):
click for larger view
This position (diagram above) may be possible for a strong player to win, but it's not a sure and easy win.
From the diagam position above, Stockfish 10 gives the continuation [Stockfish 10 64 +1.96@ 38 ply) 26.Rd1 Be5 27.Nxe5 Nxe5 28.Bxe5 fxe5 29.f3 Kf7 30.e4 Kf6 31.a5 Red8 32.Rxd8 Rxd8 33.a6 Rc8 34.Bf1 Ke7 35.Kf2 Bd7 36.Rxc8 Bxc8 37.Bh3 Kd8 38.Bf5 h6 39.Bxc8 Kxc8 40.axb7+ Kxb7 41.f4 Kc6 42.h4 h5 43.Ke3 Kd6 44.Kd3 a6 45.Kc4 g6 46.f5 gxf5 47.exf5 = (0.00 @ 37 ply, Stockfish 10) with a draw (despite White's extra pawn).
No doubt there are improvements to be found for white in this computer analysis, but it emphasizes the point that against strong play 24. Qxd5! is not a sure and easy win.
P.S.: In the opening, Black can improve over the awkward un-developing move <13...Bd8?>, allowing the game move 14. Rc1 ± (+0.65 @ 33 ply, Stockfish 10) or the computer suggestion 14. Nxc6 ± (+0.94 @ 33 ply, Stockfish 10), with 13...h6 = (0.00 @ 33 ply, Stockfish 10) or 13...Nxd4 = (0.00 @ 33 ply, Stockfish 10).
|Dec-06-19|| ||agb2002: The rook on c8 is defenseless. This suggests 24.Qxd5:|
A) 24... Bxd5 25.Rxc8+ Nd8 (25... Qd8 26.Rxd8+ Nxd8 27.Rxd5 + - [B+P]) 26.Ba3
A.1) 26... Qxa3 27.Rxd5
A.1.a) 27... Re8 28.Rdxd8 Rxd8 29.Rxd8 Kf7 30.Rxb8 Qxb3 31.Bb5 + - [R+B+N vs q] (31... a6 32.Bxa6).
A.1.b) 27... Kf7 28.Rdxd8
A.1.b.i) 28... Bd6 29.Bc4+ Kg6 (29... Ke7 30.Re8+ Kd7 31.Bb5#) 30.Bd3 f5 31.Bxe4 fxe4 32.Nd4 +/ - [2R+N+P vs q+b].
A.1.b.ii) 28... Be5 29.Bc4+ Ke7 (29... Kg6 30.Bd3) 30.Nd2 Rg4 31.Re8+ Kd6 (31... Kd7 32.Be6+ Kd6 33.Bxg4 wins decisive material) 32.Be6 with the double threat Nc4+ and Bxg4.
A.2) 26... Qd7 27.Rxb8 with the threat Bc4 looks good for White.
B) 24... Qxd5 25.Rxd5 drops a pawn (25... Bxd5 26.Rxc8+ wins two pieces).
|Dec-06-19|| ||patzer2: <King.Aruthur.Brazil>'s 29. Ba3! +- (+6.05 @ 32 ply, Stockfish 10) is a good alternative winning follow-up.|
<Malt>'s 26. Ba3! +- (+5.45 @ 32 ply, Stockfish 10) is also a good alternative win.
|Dec-06-19|| ||ClassZPlaya: Found 24. Qxd5 for White very quickly, but Black need not lose so much material as in the game: 24. Qxd5 Qxd5 25. Rxd5 Ree8 escapes with the loss of just a pawn, although White should have good winning chances.|
|Dec-06-19|| ||mel gibson: <However, what I missed is Black isn't forced to play the blunder <24...Bxd5??>, but instead can keep the material loss to only a pawn after 24. Qxd5! Qxd5! 25. Rxd5 Ree8 ± to +- (+1.96 @ 34 ply, Stockfish 10 diagram below):>|
True 24...Bxd5 is a blunder.
That is what makes the line chosen a winner.
|Dec-06-19|| ||beatgiant: <An Englishman>
<a new puzzle--why is this system called "Wimpy?">
Maybe because White will gladly allow an attack next Tuesday for an isolani today?|
|Dec-06-19|| ||perfidious: Believe there was a piece on this line in a BCM, long ago--if my old brain is not totally shot, the system was conjured up in a Wimpy Bar, hence the name. |
Whatever the truth of the above paragraph, this is simply a quiet line of the Tarrasch QGD in character, if not outright by transposition.
|Dec-07-19|| ||Cheapo by the Dozen: Once again, I got the general idea, and am glad I didn't long persevere looking for a win more crushing than was actually there.|
|Dec-07-19|| ||Cheapo by the Dozen: As for "Wimpy": There used to be a hamburger chain called "Wimpys". I even recall seeing one in Europe in 1973, when I was on a bus full of teenaged American tourists some of whom were in a group chaperoned by somebody nicknamed "Uncle Wimpy". Imagine the cheering as we passed it. Imagine the disapproval of a local guide who misunderstood the enthusiasm's reason. :)|