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Ian J Wallis vs Nino Maisuradze
Hastings (2014/15), Hastings ENG, rd 3, Dec-31
Sicilian Defense: O'Kelly Variation. Maroczy Bind (B28)  ·  0-1
ANALYSIS [x]

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sac: 38...Rxh3+ PGN: download | view | print Help: general | java-troubleshooting

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Mar-29-16
Premium Chessgames Member
  Phony Benoni: Just as a point of interest, note that after the inferior <39...Rxh3+ 40.Qh2>


click for larger view

Black can't take the queen immediately. Either 40...Qe1+ or 40..Qxf3+ are good alternatives, but Black will still have to be a little careful of cheapos on the g/h files.

Mar-29-16  dfcx: Rook battery on the file!

38...Rxh3+ 39.Bxh3 (Kg1? Rh1#) Qxh3+ 40.Qh2 Qf1#

or 40.Kg1 Qh1#

Black also wins with 39...Rxh3+ but no quick mate.

Mar-29-16  morfishine: <38...Rxh3+>
Mar-29-16  stst: The double R on h-file should be sufficient for a brute-sac: 38..........Rxh3+
39.BxR (if 39.Kg1 Rh1#) QxB+
40.Qh2 Qf1#
Mar-29-16  diagonalley: good tuesday puzzle
Mar-29-16
Premium Chessgames Member
  patzer2: I was struck by Chess blindness on today's Tuesday puzzle (38...?). I found the first move 38...Rxh3+, but after 39. BxR I didn't consider the simple 39...Qxh3+ which initiates mate-in-two.

By overlooking the simple and easy mate 39...Qxh3+ 40. Kg1 (40. Qh2 Qf1#) 40...Qh1# and considering only the reply 39...Rxh3+, I calculated an unnecessarily harder win.

My difficult winning line went 39...Rxh3+ 40. Qh2 Qe1+ 41. Kg2 Rxh2+ 42. Kxh2 Qg3+ 43. Kh1 Qxf3+ (-6.89 @ 20 depth) when the computer indicates play might continue 44. Kg1 Bh6 (-9.71 @ 21 depth, Deep Fritz 15).

P.S.: So where does White go wrong? White's game takes a serious turn for the worse with the game continuation 34. Rcc2? Rg6 (-1.58 @ 22 depth, Deep Fritz 13) or the computer suggestion 34. Rcc2? Qh4 (-2.39 @ 23 depth, Deep Fritz 15). Instead, 34. Nf6 Bxc4 35. Nxg8 Qxg8 = (0.00 @ 24 depth, Deep Fritz 15) keeps it level.

Mar-29-16
Premium Chessgames Member
  agb2002: Black is one pawn down.

White threatens 39.Qxg3.

Black delivers mate in three with 38... Rxh3+ 39.Bxh3 (39.Kg1 Rh1#) 39... Qxh3+ (39... Rxh3+ 40.Qh2 Qe1+ 41.Kg2 Rxh2+ looks also winning but nowhere near as effective) 40.Qh2 (40.Kg1 Qh1#) 40... Qf1#.

Mar-29-16  alphee: An easy attack of the king after a careful preparation. 38... ♖xh3+ 39.♗xh3 ♕xh3+ 40.♕h2 40 ♕f1#. For a few moves, white was really locked in with almost no possibility to escape
Mar-29-16  Virgil A: As ESPN commentator Jalen Rose would say...

"Wallis! Wallis! Wallis!"

Mar-29-16  not not: I saw rook takes h3, but not the follow ups - I am a bad tactician

I would play bishop takes h3 as a proper pawn grabbers do

Mar-29-16
Premium Chessgames Member
  CHESSTTCAMPS: Black is down a pawn, but the attacking major pieces rule the g and h-files. Black finishes with 38... Rxh3+ 39.Bxh3 (Kg1 Rh1#) Rxh3+ 40.Qh2 Qxf3+ (not 40... Rxh2+?? 41.Rxh2+ Kg7/g8 42.Rhg2) 41.Rg2 (Kg1 Rxh2 42.Rxh2+ Kg7) Qd1+ 42.Rg1 Qxc2 43.Rg2 Qxe5 and the BQ falls next.
Mar-29-16  saturn2: I got this one after about 2 minutes of trial and error: 38...Rxh3
a. 39 Kg1 Rh1
b. 39 BxR QxRh3
b1. 40 Kg1 Qh1
b2. 40 Qh2 Qf1
Mar-29-16
Premium Chessgames Member
  CHESSTTCAMPS: Also missed the quick mate. Why make things easy when you can make them complicated?
Mar-29-16
Premium Chessgames Member
  alfiere nero: Another one here in the camp of the double rookers. The lesson for me: remember to consider better options before committing.
Mar-29-16  not not: after black played pawn to f5 on move twelve, why didn't white respond pawn to f4? to respond to aggression with aggression? is it losing move? 13 f4?
Mar-29-16  not not: why he goes passive with 13 f3? he is white, he got d5 square with his monster king, he is the boss of the centre, he rules the board

why he plays as if he was defending worse position?

Mar-29-16  not not: monster knight sorry
Mar-29-16  mel gibson: so easy.
Mar-29-16
Premium Chessgames Member
  patzer2: <not not> The computers give 13. f3 as slightly better than 13. f4 =.

However, best according to Deep Fritz 15 is the provoking 13. Be3 when 13...f4?! is met with 14. Bb6 Qg5 15. f3 Nd4 16. Bc7 Be6 17. Bxd6 Rf7 18. Qd2 Bf8 19. Bxf8 Raxf8 (+0.79 @ 20 depth).

Of course it may be a matter of playing style and playing strength, as to which move is better.

If you are a more comfortable and familiar with the types of positions after 13. f4 = than after 13. Be3 then that might be the better move for you.

Mar-29-16
Premium Chessgames Member
  paulalbert: As some who posted have discovered, one must do a little precise calculation to get the clearly best move. 39....Qxh3+ not 39....Rxh3+. I've learned even on Monday and Tuesday where the initial move is usually obvious ( but even Monday is not always an immediate Q sacrifice ) to spend a little extra time to make sure I calculate all the followup moves correctly. That's really more instructive than saying I saw the first move in two seconds.
Mar-29-16  not not: patzer so computer wants to go after d6 pawn? I think it will still subject white to be faced with strong kingside pawn storm

anyway, thanks for answering my post

Mar-29-16
Premium Chessgames Member
  Once: A fun little puzzle. The key is to make multiple mate threats until there are too many for white to defend against.

38...Rxh3+ threatens a mate with a queen on h2 and the rather nasty 39. Kg1 Rh1#.

Then after 39. Bh3, the "automatic" rook reloader 39...Rxh3+ isn't so strong because black doesn't have a double mate threat.

Instead, 39...Qxh3+ has multiple threats such as Qh1# and Qf1#.

Fun.

Mar-29-16  morfishine: <paulalbert> Yes, one must calculate, thats what chess players do, or attempt to do
Mar-30-16
Premium Chessgames Member
  kevin86: If white tries to block the check at h2 with queen, the black queen mates at f1.
Mar-31-16
Premium Chessgames Member
  HeMateMe: Does the Marshall have landmark status? I am assuming it does, the building, just west of 5th Ave on 10 street must be worth $10M as a residential property. I don't think yearly membership fees can generate that much money...
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