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Markus Ragger vs Manuel Leon Hoyos
Mindsports (2008) (rapid), Beijing CHN, rd 6, Oct-13
Sicilian Defense: Alapin Variation. General (B22)  ·  1-0



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Kibitzer's Corner
Sep-17-23  agb2002: White has an extra pawn.

The black queen protects the bishop and the rook on e2. This suggests 30.Qxe2 Qxe2 31.Bxd4+:

A) 31... Kg8 32.Rg7+ Kf8 (32... Kh8 33.Re7+ wins a piece) 33.Rcc7

A.1) 33... Qd1+ 34.Kh2 Re1 (34... Qxd4 35.Rcf7#) 35.Bc5+ wins (35... Re7 36.Rgxe7; 35... Ke8 36.Rg8#).

A.2) 33... Qe6 34.Bc5+ wins decisive material.

B) 31... Re5 32.Re7 Qd2 33.Bxe5+ Kg8 34.Rc8+ and mate next.

Sep-17-23  Brenin: 30 Qxe2 wins, but isn't 30 Bxd4 Qxd4 31 Qxe2 more direct? Of course, 31 ... Rxe2 allows mate.
Sep-17-23  King.Arthur.Brazil: My try is: 30. Qxe2 Qxe2 31. Bxd4+ Kg8 32. Rg7+ Kf8 33. Rcc7 (threat 34. Rf7#) Qe1+ 34. Kh2 Qe6 35. Rh7 Re7 (Rd8 36. Rh8+ Qg8 37. Bc5+ Ke8 38. Rxg8#) 36. Bc5 Qe5 37. Rhxe7 Qf5 38. Re5+ Kg8 39. Re8+ Qf8 40. Rxf8#

Therefore B is forced to lose his ♕ with 37... Qxc5 38. Rf7+ Ke8 39 Rxc5 Kxf7 40. Rc7+ and 41. Rxa7, win.

Sep-17-23  King.Arthur.Brazil: <Brenin> Really, in your line, I didn't see an way to B sacrifice his ♕ for extend the game. E.g. <30. Bxd4 Qxd4 31. Qxe2> Qd8 32. Qc4 Qf6 33. Qc7 Kg8 34. Qh7+ Kf8 35. Rcc7 Rd8 36. Rf7+ Qxf7 37. Rxf7+ Ke8 38. Qg8#.
Sep-17-23  Brenin: <K.A.B>: After 30 Bxd4 Qxd4 31 Qxe2 Qd8 I think that 32 Qc2, aiming at g6, is stronger than Qc4, e.g. 32 ... Qf6 33 Qc7 Kg8 34 Qh7+ Kf8 35 Rc6, and the Black Q cannot guard all the mating squares.
Sep-17-23  mel gibson: I made the different but correct choice. 30. Bxd4

Stockfish 16 says:

30. Bxd4

(30. Bxd4 (Bc3xd4 Qe5xd4 Qf3xe2 Qd4-d8 Qe2-c2 Qd8-f6 Qc2-c7 Kh8-g8 Qc7-h7+ Kg8-f8 Rc1-c6 Re8-e1+ Kg1-h2 Re1-e6 Rb7-b8+ Qf6-d8 Rb8xd8+ Re6-e8 Rc6-f6+) +M10/91 22)

White wins _ mate in 10.

If I force SF to play the game ply:

30. Qxe2 Bxc3

(30. .. Bxc3 (Bd4xc3 Qe2xe5+ Bc3xe5 Rc1-e1 a7-a5 Rb7-b5 Kh8-g7 Rb5xe5 Re8-b8 Re1-b1 Rb8-a8 Re5-b5 Kg7-f6 h3-h4 Kf6-e6 Kg1-h1 Ra8-a6 Rb1-c1 Ke6-d7 f2-f3 Kd7-d6 Rb5-g5 Kd6-d7 Rg5-c5 Ra6-b6 Rc1-b1 g6-g5 Rc5xg5 Kd7-c6 Rg5xh5 Rb6-b4) -6.89/41 122)

score for Black -6.89 depth 41.

Sep-18-23  Nosnibor: I also think 30.Bxd4 is the best way to conclude the game.
Sep-18-23  Mayankk: Saw the 30 Qxe2 Qxe2 31 Bxd4 Kg8 32 Rg7+ Kf8 33 Rcc7 line, threatening 35 Rcf7# if Black tries 33 ... Qd1+ 34 Kh2 Qxd4.

Didn't see the 30 Bxd4 Qxd4 31 Qxe2 line which switches the first two moves but much prettier. Ah well.

Premium Chessgames Member
  chrisowen: I q mc its hang with broke suffered its z u v ply its Qxe2 abe leeway its Bxd4 account mic guff ace its me affix pin Qxe2 doh its Bxd4 cad :)

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