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Wei Yi vs Yu Yangyi
8th Hainan Danzhou (2017), Danzhou CHN, rd 5, Jul-13
Russian Game: Classical Attack (C42)  ·  1-0
ANALYSIS [x]

FEN COPIED

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Kibitzer's Corner
Jul-13-17
Premium Chessgames Member
  tamar: 22 Rh5 has the look of preparation, although the engines prefer 22 Bxf5 Qxf5 23 Rh5 Qe6 24 Nxf7!
Jul-13-17  7he5haman: I've never seen a combo like that before! Does anyone know of any similar examples?
Jul-13-17  widjaja70: 22 Bxf5 Qxf5 23 Rh5 Qb1+ 24. Re1 (24 Ke2 Qxb2+) Qa2.
Jul-13-17  fisayo123: Fantastic domination of the dark squares with the Queen. Wei Yi uses his Queen to dominate the light squared bishop and the rook on the 5th rank. And it seems to me the rook is "stuck" on that rank as if say 50... Rd7 51. a4! Bxa4?! 52. d5! and white is winning. If black neglects to take, then just (a5, a6) and white makes serious progress.

It's cool to see this sort of domination of the queen over the rook and bishop in a position that seemingly looked like a fortress.

Jul-13-17  Sargon1: 22 ♗xf5 ♕xf5 23 ♖h5 ♕b1+? 24. ♖e1 ♕a2 25.♘d7+ ♔g8 26.♖he5
Jul-13-17  starry2013: why did black move the bishop from c6, seemed solid
Jul-13-17
Premium Chessgames Member
  morfishine: A great game, just another incredible <Wei Yi> game

*****

Jul-13-17  Whitehat1963: Early masterpiece for the youngster!
Jul-14-17  fisayo123: GOTD : Where there's a will there's a Wei.
Jul-17-17
Premium Chessgames Member
  patzer2: <7he5haman: I've never seen a combo like that before! Does anyone know of any similar examples?> I classify 22. Rh5! Qxh5 23. Nd7+ as a "discovered attack with check."

A discovered attack with check differs from a discovered check in regard to which piece is giving check (i.e. the hidden piece or the discovering piece.)

According to http://www.uschess.org/content/view... <A discovered check occurs when a player moves a piece that reveals a hidden piece behind it that attacks (i.e. checks) the enemy king.> In contrast, according to https://en.wikipedia.org/wiki/Disco..., <When the moving piece gives check to the opponent's king, the maneuver is often described as a discovered attack with check.>

Some examples of the discovered attack with check tactic can be found at http://www.chess-game-strategies.co....

I also have a short collection of 9 games (including this one) with this tactic at Game Collection: Discovered Attack with Check.

Jul-17-17
Premium Chessgames Member
  patzer2: Correction: "A discovered attack with check differs from a discovered check in regard to which piece is giving check (i.e. the hidden piece or the <moving piece.>)"
Jul-17-17
Premium Chessgames Member
  patzer2: Categories of discovered attack:

Discovered check -- hidden piece giving check, while the moving piece attacks the target piece or square.

Discovered attack with check -- moving piece giving check, while the hidden piece attacks the target piece or square.

Double discovered check -- both the moving piece and the hidden piece give check or checkmate.

Discovered attack without check -- moving piece uncovers a hidden attacking piece without giving check.

Jul-17-17
Premium Chessgames Member
  takchess: http://en.chessbase.com/post/the-we...
Jul-18-17
Premium Chessgames Member
  patzer2: After looking at the chessbase.com analysis, it's now apparent to me that the computer choice 22. Bxf5! to is much stronger than the game continuation 22. Rh5!? to .

A long move-by-move analysis with Stockfish 8 indicates White is winning after 22.Bxf5! Qxf5 23.Rh5 Qe6 24.Nxf7 Qa6+ 25.Kg1 Kxf7 26.Rhe5 Kg8

[26...Qd6 27.Qc4+ Kf8 (27...Kf6 28.Re6+ ) 28.Rf3+ ]

27.Rxe7 Rxe7 28.Rxe7 Rf8 29.f3 Qd3 30.Qd5+ Kh8 31.Kh2 c6 32.Qe5 Qg6 33.Rxb7 a5 34.a4 Rf5 35.Rb8+ Kh7 36.Qe4 Rg5 37.Qxg6+ Rxg6 38.Rd8 Re6 39.d5 cxd5 40.Rxd5 Ra6 41.Kh3 g5 42.Rc5 Kh8 43.g4 Rf6 44.Kg2 Rb6 45.Rb5 Ra6 46.Kf2 Kh7 47.Ke3 Kg6 48.Kd4 h5 49.gxh5+ Kh6 50.Ke4 Ra7 51.b3 Re7+ 52.Kf5 Kxh5 53.Kf6 Re3 54.f4 Rc3 55.Rxg5+ Kh6 56.Rxa5 Rxb3 57.Ra8 Rb6+ 58.Ke5 Kg7 59.a5 Rb7 60.f5 Re7+ 61.Kd6 Re1 62.a6 Re4 63.f6+ Kf7 64.a7 Re6+ 65.Kd5 Ra6 66.Rh8 Ra5+ 67.Kc6 Ra6+ 68.Kb7 Rxa7+ 69.Kxa7 .

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