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Baskaran Adhiban vs Wei Yi
India-China Summit Match (2015), Hyderabad IND, rd 3, Mar-04
Sicilian Defense: Najdorf. Poisoned Pawn Variation (B97)  ·  1-0

ANALYSIS [x]

FEN COPIED

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Kibitzer's Corner
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May-28-16  faulty: that was cruel...
Dec-29-19
Premium Chessgames Member
  An Englishman: Good Evening: Maybe saw enough to claim credit--after White's 23rd, it became clear that Black had landed in horrible trouble.

One interesting question--after 16.Bxf6,gxf6!? how does White continue?

Dec-29-19  Whitehat1963: Although not the most efficient path, I love this line to finish it:

21...Bxe5 22. Rxf7+ Kd8 23. Nc4+ Bd6 24. Rxd6+ Qxd6 25. Nxd6 Bd7 26. Qc3 b6 27. Qxg7 Rg8 28. Qxg8+ Kc7 29. Nb5+ Kb7 30. Bf3+ Ka6 31. Nc7+ Ka5 32. Qxa8+ Kb4 33. Rf4+ Kc3 34. Qa3+ Kd2 35. Rd4+ Nd3 36. Rxd3+ Ke1 37. Qc1+ Kf2 38. Qg1#

Dec-29-19  Whitehat1963: This works, too:

21...Bxe5 22. Rxf7+ Kd8 23. Nc4+ Ke8 24. Qh5 g6 25. Qxg6 Nd3 26. Nxb6 Kd8 27. Rxd3+ Bd6 28. Rxd6+ Ke8 29. Rxb7+ Kf8 30. Rd8#

Dec-29-19  Walter Glattke: Refined manoeuvre against f7, most CG puzzles have and open f-line with rook, so here is.
Dec-29-19
Premium Chessgames Member
  agb2002: White has a bishop and a knight for the bishop pair and two pawns.

Black threatens exd4.

The position looks ready for the typical piece sacrifice on b5, 18.Ndb5. For example, 18... axb5 19.Nxb5 Qb8 20.Nd6+ Ke7 21.fxe5 Bxe5 22.Rxf7+ Kd8 23.Nxb7+ Ke8 24.Qh5 wins.

Dec-29-19  mel gibson: Wow - I didn't even consider that move but
Stockfish 10 saw it in only a few seconds.

18. Ndb5

(18. Ndb5 (♘d4-b5
a6xb5 ♘c3xb5 ♕c7-e7 ♘b5-d6+ ♔e8-f8 f4xe5 ♘c5-e4 e5xf6 ♘e4xf6 ♗e2-h5 ♗c8-d7 ♘d6xf7 ♔f8-g8 ♘f7-e5 ♗d7-e8 ♗h5xe8 ♖a8xe8 ♘e5-g6 ♕e7-f7 ♘g6xh8 ♔g8xh8 ♕h3-b3 ♕f7-c7 ♖d1-d4 ♕c7-e5 ♖d4-b4 ♕e5-e2 ♕b3-d3 ♕e2xd3 c2xd3 ♖e8-a8 ♖f1-a1 ♖a8-a7 ♖b4-b6 e6-e5 a2-a4 ♘f6-d7 ♖b6-b4 b7-b6 ♔h1-g1 ♔h8-g8 ♔g1-f2 ♔g8-f7 ♔f2-e3 ♔f7-e7 ♖a1-b1 ♖a7-a6 ♖b4-c4 ♘d7-c5 ♖b1-b5 ♘c5-d7 h2-h4 h6-h5 g2-g4 h5xg4 ♖c4xg4 ♔e7-f7 ♖g4-b4 ♖a6-a8) +3.18/37 222)

score for White +3.18 depth 37

Dec-29-19
Premium Chessgames Member
  agb2002: <An Englishman: ...

One interesting question--after 16.Bxf6,gxf6!? how does White continue?>

16... gxf6 softens the light squares and White can try to make the most of it with a plan based on f5 and Bh5.

Dec-29-19  malt: For 19...Qb6 (..Qc6 ..Qe7 )
I went with
20.Nd6+ Ke7 21.fe5 Rd8 22.Nc4 Qc7 23.ef6+ gf6 24.Q:h6

Missed 21...Nd7

Dec-29-19  Ceri Evans: <An Englishman: Good Evening: Maybe saw enough to claim credit--after White's 23rd, it became clear that Black had landed in horrible trouble. One interesting question--after 16.Bxf6,gxf6!? how does White continue?>

Probably with either 17. Bh5, or 17.f5

Cheers,

Ceri

Dec-29-19  RandomVisitor: White tries two lesser-played moves in the poisoned pawn: 8.Qd3 and 10.Be2. There is a reason they are not played as much.


click for larger view

Stockfish_19121008_x64_modern:

<38/69 06:47 -1.14 10...Nbd7 11.f5 Nc5 12.Qf3> Be7 13.0-0 Qa5 14.Nb3 Nxb3 15.cxb3 0-0 16.Kh1 Bd7 17.b4 Qd8 18.fxe6 fxe6 19.Bf4 a5 20.b5 e5 21.Bg5 Be6 22.Qd3 Rc8 23.Bxf6 Bxf6 24.Rbd1 Bg5 25.Nd5 Rc5 26.b6 Bxd5 27.exd5 Rf4 28.Rxf4 exf4 29.Qe4 g6 30.g3 fxg3 31.hxg3 Kg7 32.Rf1 Bf6 33.Kg2 Rc3

Dec-29-19  jith1207: <Chris Owen> is trying to communicate with this world in last few days.

Alas, those who are fortunate enough to be called seem to have him in ignore list to notice and respond.

Dec-29-19
Premium Chessgames Member
  chrisowen: <jith1207> dug-deep buddy.
Dec-29-19  messachess: difficult combination.
Dec-29-19  botvinnik64: 18.Ndb5!! Nice - poisoned pawn is really nasty even if you “get the queen back” into play.
Dec-29-19  20MovesAhead: If black play 16...g x f6

16...gxf6 17. f5 h5 18. fxe6 fxe6 19. Nf5 exf5 20. Nd5 Qa5 21. Qg3 Kf7 22. Bc4 Be6 23. exf5 Rag8 24. fxe6+ Ke8 25. Nxf6+ Bxf6 26. Qxd6 Be7 27. Qb8+ Bd8 28. e7 Kxe7 29. Qd6+ Ke8 30. Bf7#

Dec-29-19  Patriot: <<jith1207> <Chris Owen> is trying to communicate with this world in last few days. Alas, those who are fortunate enough to be called seem to have him in ignore list to notice and respond.>

I don't know why anyone would write like that for 9/10 years! A friend suggested he may be sipping his food thru a straw (in the case of some medical condition) but even then...why?? I don't have time to decipher his code but I will tell you this...around 2009 he was writing normal sentences on here. If he is doing that on purpose, what a horrible waste of time!

Dec-29-19  Patriot: <21...Nd7> I wouldn't be too concerned about a move like that as white is regaining material and maintaining an attack. Calculating beyond that seems a waste of time. However once you reach the position after <24.Nxf7 Kxf7 25.Bh5+>, it's interesting there is no good reply:

<25...Ke7 26.Qxg7#>

<25...Kg8 26.Rxf6>

<25...Kf8 26.Qg6 Qc7 27.Qe8#>

<24.Nxf7> is a nice move! I suppose <24...Rg8 25.Nxh6 gxh6 26.Rxf6+ Ke7 27.Qe5 or 27.Qh4>. Or <24...Rh7 25.Qg6 Ke7 26.Rxf6 gxf6 27.Qxh7>.

Dec-29-19  jith1207: <Patriot>: yes, Chris Owen used to write proper English, though it may have had some non native identity. But until very recently, didn't respond or call other posters which seems to have changed.

There were lot of proposals on the condition, like speech to text gone wrong, automated code to populate randomly formed words which I think it probably is. That wouldn't be a waste of time. But paying lifetime premium membership for these posts might be.

However, it is refreshing to see hand written individual posts of late.

Dec-30-19  jith1207: <20MovesAhead>: name checks out.

But, not sure about the 27.Qb8 when Black has rook in a8?!

Anyway, there seems to be an early mate in your line

25. Qxg8+ Bf8 26. Qf7+ Kd8 27. Qxf8#

Dec-30-19  Patriot: <jith1207> If it is speech to text gone wrong, it makes you wonder why he keeps doing it...literally for years. Automated code...as in a bot? That would be a logical conclusion since nothing else seems to make sense. It would have to be advanced enough to use actual analysis and phrases relating to it embedded in the sea of words because there is a connection there. I don't know...I think it's deliberate gibberish so either he sees it as an eternal joke or is endlessly amused by it. It's the craziest thing I've ever seen.
Dec-30-19  Patriot: <jith1207> But garbage or not, as long as he is a paying customer then who cares what is posted? Personally I wouldn't allow it if I were admin. Enough is enough.
Dec-30-19  saturn2: White can try to sacrifice a piece
18 Ndb5 

...axb5 (after Q moves 29 Nd6 is strong)19. Nxb5 Qb8 20. fxe5 Bxe5 21. Qh5 g6 22.-  Qxe5 and he gets back material with interest.
This seemed a bit hard for a monday puzzle.

Dec-30-19  saturn2: In writing down my analysis I forgot to insert 20. Nd6+ Otherwise the black bishop is covered by the queen and white cannot take it.
Dec-31-19  rdeckard: <jith1207> Broca's aphasia maybe?
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