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Dec2508   arsen387: Terrific attack by great Nisi! Interesting is that in this (4..Be7) variation of French defense white has very high winning percentage according to Opening Explorer  46.2%. Few so often used variations have such a big winning percentage for either side. 

Feb1712   hedgeh0g: Beautiful double rook sac and finish. I can't get enough of this opening as White. 

Feb1812   Shams: <hedgeh0g> On 6...a6?! nobody can get enough as White. The question is, how do you do against 6...c5 when White wins the exchange on a8? I hate that line, Black has all the fun. 

Feb1812   hedgeh0g: I consider 6...c5?! to be a mistake. 7.Bxe7 is the natural followup, upon which recapturing with the king is probably best to avoid the Nb5 business. 7...Qxe7 is also playable, but I think White gets an advantage after 8.Nb5 OO 9.Nc7. The centre collapses, true, but I think White can get good piece play and retains attacking chances on the kingside with the advanced hpawn. Could you give an example line which you find problematic as White? I'm always interested in analysing the ChatardAlekhine. 

Feb2814
  Check It Out: What an exciting game. Interesting notes, <Shams> and <hedgeh0g>. 

Aug0118   birimbombum: So... what you say of 6...OO? 

Dec2819
  An Englishman: Good Evening: Figuring out the sacrifices required proved much easier than figuring out the order in which to play them. That took work. A little surprising that the gambit (in my youth called the AlbinChatardAlekhine Attack) has never become a main line in the French; White wins a lot of games including a lot of brilliancies. Maybe 6...h6 gives Black the best chances. 

Dec2819
  al wazir: What happens after 14...Nbd7 ? After 15. Rxh6 gxh6 16. Qxh6 Qe7, I don't see a win. If 17. b4, then 17...Qg7, and black is up an exchange. White can just play 15. the immediate b4, but after 15...Qxg6 16. bxc5, white has again given up an exchange for nothing much.. 

Dec2819
  Jimfromprovidence: This one is tough because the after 14 Rxd5, 14...exd5 is a terrible move. I guess the logic behind 14 Rxd5 is to give up the rook so white can gain access to d5 to play Nxd5 seeing Nf7+ sometime after Rxh6. How white saw all of this and in the correct move order is beyond me. Just a small note. Here is the position after 14 Rxd5 exd5 15 Rxh6. click for larger viewThe threat is 16 Rh8+ Kxh8 17 Qh2+ Kg8 18 Qh7# 

Dec2819   Walter Glattke: 17.Qxd5 18.gxf7+ Kxf7 19.Qh7+ Ke8 20.Nf6+ or 19.Qg7 20.Ne7+ Kf8 21.Ng6+ wins the queen, 19.Kf8 20.Nf3 wins. 

Dec2819   mel gibson: I thought Nxd5 and I was right.
Stockfish 10 says:
(14. Nxd5
(♘c3xd5 e6xd5 ♖d1xd5 ♘c5e6 ♖d5d3 ♕e8e7 ♖d3d6 ♘b8c6 ♘g1e2
♖f8e8 ♖h1h5 ♕e7f8 ♖h5xf5 ♕f8e7 ♖f5h5 ♕e7f8 ♕f4g3 ♔g8h8 f2f4 b7b5
♗c4b3 ♘c6xe5 f4xe5 ♕f8f1+ ♔c1d2 ♖a8a7 ♗b3xe6 ♗c8xe6 ♕g3f3 ♕f1xf3 g2xf3
♖a7d7 ♖d6xd7 ♗e6xd7 ♘e2d4 ♔h8g8 f3f4 ♔g8f8 ♔d2e3 ♗d7g4 ♖h5h2 ♗g4c8
♖h2d2 h6h5 ♔e3e4) +4.00/38 271)
score for White +4.00 depth 38 

Dec2819   goodevans: Well, I haven't seen it called <Rumania> for the longest time. Sometime in my youth it suddenly changed to <Romania> for reasons I've never got to grips with. I don't even remember a transition, just an instant switch. 

Dec2819
  agb2002: Black threatens dxc4 and Qxg6.
The semiopen hfile and the bishop xraying the black king suggest 14.Rxd5 followed by Rxh6: A) 14... exd5 15.Rxh6
A.1) 15... gxh6 16.Qxh6
A.1.a) 16... Qe7 17.Nxd5 Qg7 18.Ne7(f6)#.
A.1.b) 16... Rf7 17.gxf7+
A.1.b.i) 17... Qxf7 18.Nxd5 Qg7 (18... Nbd7 19.Ne7#; 18... B(N)e6 19.Nf6+ Qxf6 20.exf6 Kf7 21.Qg7+ Ke8 22.Qe7#) 19.Ne7+ Kf8 20.Ng6+ Ke8 21.Qxg7 wins decisive material. A.1.b.ii) 17... Kxf7 18.Qf6+ Kg8 19.Nxd5 B(N)xe6 20.Ne7+ Kh7 21.Bxe6 N(B)xe6 22.Qxe6 with three pawns for the exchange and attack (threatens Nf3Ng5+). A.2) 15... dxc4 16.Rh8+ Kxh8 17.Qh4+ Kg8 18.Qh7#. B) 14... Nbd7 15.Rd6 Qxg6 16.Nf3 looks good for White (16... Qxg2 17.Rg1 is surely suicidal). C) 14... Ne4 15.Rd3 Qxg6 16.Nxe4 fxe4 17.Rg3 Rxf4 18.Rxg6 Rxf2 19.Rhxh6 and White looks better. 

Dec2819   Anjeneyar: Annotation at end says:
19.....Qd7. 20. Be6+ etc with value as +12.35.
There is a better continuation as follows:
20. f7+. Bxf7.(forced to avoid mate)
21. gxf7+.Qxf7.(forced to avoid mate)
22. Qg6+! Kh8 (forced to avert mate next move)
23. Bxf7. Nb/d3+ spite check to prolong mate
24. cxb/d3. Any move
25. Qh6#
All forced moves to try avoid immediate mate.
So the annotation should have said
If 19....Qd7. Then 20. f7+ and mate in five moves! Harry 

Dec2819   goodevans: <Anjeneyar> After 20.f7+ black has the option of playing 20...Qxf7, which loses horribly but avoids an immediate mate. So I'd say SF's 20.Be6+ and your 20.f7+ were roughly on a par. 

Dec2819   RandomVisitor: After 13...Qe8 Stockfish likes 14.Nxd5, since 14.Rxd5 can be met with token resistance by 14...Ne4 click for larger viewStockfish_19121008_x64_modern:
<45/72 29:25 +4.51 14.Nxd5 exd5 15.Rxd5 Ne6 16.Rd3> Qe7 17.Rd6 a5 18.Ne2 b5 19.Bd5 Na6 20.Nd4 Nac7 21.Nc6 Nxd5 22.Nxe7+ Nxe7 23.Qe3 Nxg6 24.Qb6 Ngf4 25.Rhd1 Kf7 26.Qxb5 Ng6 27.Rh1 Ra7 28.a4 Re8 29.g3 Rc7 30.f4 Bb7 31.Re1 Ngf8 32.g4 Be4 33.Rxe4 fxe4 34.f5 Nc5 35.e6+ Nfxe6 36.fxe6+ Ke7 37.Rc6 Rxc6 38.Qxc6 Nxe6 39.Qb7+ Kf6 40.Qxe4 g6 41.Qd5 Rc8 42.Qxa5 Rc4 43.b3 Rxg4 44.Qb6 Rf4 45.a5 Ke7 <45/88 29:25 +2.23 14.Rxd5 Ne4> 15.Nxe4 fxe4 16.Qg4 Nc6 17.f4 b5 18.Bb3 Ne7 19.Rd2 Qxg6 20.Qxg6 Nxg6 21.g3 a5 22.a3 Ne7 23.Ne2 Nf5 24.Rh3 b4 25.g4 Ne7 26.Rd4 bxa3 27.bxa3 a4 28.Bc4 Ra5 29.Rxe4 Nd5 30.Kd2 Rc5 31.Bd3 Bd7 32.g5 hxg5 33.fxg5 Ne7 34.Nf4 Rfc8 35.g6 Nf5 36.Kc1 Nh6 37.Rd4 Be8 38.Nxe6 Rxe5 39.Re4 Rxe4 40.Bxe4 Bc6 41.Rh4 Bxe4 42.Rxe4 Nf5 43.Rxa4 Ne3 44.Ra7 Rxc2+ 45.Kb1 Rc8 46.Rxg7+ Kh8 47.Rh7+ Kg8 48.a4 44/89 29:25 +1.74 14.b4 Qxg6 15.bxc5 dxc4 16.Na4 Nd7 17.Nf3 a5 18.Qxc4 Ra6 19.Kb1 f4 20.Rhg1 Rc6 21.Rge1 Nb8 22.Nd4 Rc7 23.Nb6 Re7 24.f3 Bd7 25.a4 Nc6 26.Nxd7 Rxd7 27.Nxe6 Rxd1+ 28.Rxd1 Qf7 29.Rd6 Re8 30.Qb3 h5 31.Kb2 h4 32.Kc3 Nxe5 33.Qd5 Nc6 34.Nxf4 Re5 35.Rd8+ Nxd8 36.Qxe5 Nc6 37.Qd5 Qxd5 38.Nxd5 Kf7 39.Ne3 Ne5 40.f4 Nd7 41.Kc4 Ke6 42.Kb5 

Dec2819   RandomVisitor: After 11.dxc5 black is ok
click for larger viewStockfish_19121008_x64_modern:
<42/74 06:33 0.00 11...Nc6 12.000 Nxc5> 13.Nf3 Qc7 14.g4 fxg4 15.Ng5 Rf8 16.Nf7 Nd8 17.Qxg4 Nxf7 18.gxf7+ Qxf7 19.Rg1 Bd7 20.Qxg7 000 21.Qxf7 Rxf7 22.b4 Ne4 23.Nxe4 dxe4 24.Bg2 Bc6 25.Bh3 Re8 26.Rg6 Rxf2 27.Bxe6+ Kc7 28.Rxh6 Re7 29.Kb2 Ba4 30.Bb3 Bxb3 31.Kxb3 Rxe5 32.Rh7+ Kc6 33.Rdd7 e3 34.Rhe7 Rxe7 35.Rxe7 e2 36.Kc4 Rf4+ 37.Kb3 

Dec2819
  chrisowen: Nackered out! 

Dec2819
  chrisowen: <RandomVisitor> fetal in utero? 

Dec2819   RandomVisitor: Should white have tried 9.dxc5 ...?
click for larger viewStockfish_19121008_x64_modern:
<52/78 1:48:07 +1.44 9.dxc5 Nc6 10.Nf3 Qe7 11.000> Qxc5 12.Qg3 Nf8 13.Bd3 Bd7 14.Nd2 000 15.Nb3 Qb6 16.Kb1 Be8 17.Rh3 Nd7 18.f4 Na5 19.Nxa5 Qxa5 20.Ne2 Nc5 21.Nd4 Kb8 22.Qe3 h6 23.Be2 Rc8 24.Rdh1 Na4 25.Nb3 Qc7 26.c3 Rg8 27.gxh6 gxh6 28.Bf3 Bb5 29.Rxh6 Qb6 30.Qxb6 Nxb6 31.Nd4 Bd3+ 32.Kc1 Be4 33.R1h2 Rg3 34.R6h3 Rcg8 35.Rxg3 Rxg3 36.Bxe4 dxe4 37.Rh7 e3 38.Rxf7 Rxg2 39.Nxe6 

Dec2819   catlover: What a beautiful game, from the opening all the way to the finish. 

Dec2819   scormus: Instructive game, for me at least. Playing it through I thought that B's opening play was rubbish, starting with 6 ... h6. But engine analysis shows, to my surprise, that most of the next several moves were definitely playable, and as <RV> pointed out B would be OK after 11 .... cxd4. The sac on d5 looked winning, so it was even more surprising to me that B's position was still just about defendable (according to the engine anyway) after 14 Rxd5. As long as he played ... Ne4, but not after .... exd5?? What makes this so instructive? I suppose the realisation that the engine eval is not the only indication for the position. Here B was one step away from totally lost 

Dec2819   dhotts: Tremendous precision was required to make the attack a success, very instructive! 

Dec2819   patzer2: For today's Saturday puzzle, I picked 14. Nxd5 as my solution. I thought I made a mistake when I checked Stockfish 9 at chessgames.com and saw Black as equal after 14. Nxd5 exd5 = (0.00 @ 23 ply analysis of move 14...?). However, <Random Visitor>'s much deeper 45 ply analysis with a stronger version of Stockfish confirms 15. Nxd5! +
is a winning best move. I learned a few useful tactics by plugging <RV>'s deeper analysis into my Stockfish 10 and exploring the side variations. P.S.: Looking at <Random Visitor>'s analsyis of an improvement over 11...00?!, castling into the attack, it appears deferring castling and developing with 11...Nc6 = gives Black equality. However, since 9. dxc5! ± to + improves earlier for White, Black needs to look for an earlier improvement. I'll explore and look for one later. For now I'm enjoying the semifinal game in the NCAA FBS football playoffs between LSU and OU and getting ready for the Clemson vs Ohio State. Go Tigers! 

Dec2919   patzer2: Early in the opening, instead of 4...Be7, I prefer the slightly more popular move 4...dxe4 as in Black's win in E de Haan vs A Donchenko, 2019. If Black must play 4...Be7, then after 5. e5 Nfd7 6. h4, instead of 6...a6 7. Qg4 ⩲, I prefer 6...Bxg5 7. hxg5 Qxg5 = with dynamic equality as in the drawn correspondence game A Kazoks vs J Cote, 2001. 


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