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Tea Lanchava vs Anna Muzychuk
Calvia Olympiad (Women) (2004), Calvia ESP, rd 11, Oct-26
Dutch Defense: Fianchetto Attack (A81)  ·  0-1

ANALYSIS [x]

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sac: 35...Rxd3+ PGN: download | view | print Help: general | java-troubleshooting

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Kibitzer's Corner
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Dec-04-09  sleepkid: Lovely mate. Should be a Thursday or Friday problem from black's 35th move.
Jul-27-13  brulla: In the next move: 38.Kd5 Rd3#
Dec-03-14  perfessor: The knight + rook combo is deadly. Very nice!
Dec-03-14  lost in space: Got it until mate after 38. Kd5 Rd3 - but first I calculated a while on 36...Rd2+ but was not able to find anything after the simple 37. Ke3
Dec-03-14  Gregor Samsa Mendel: Cute mate. Of vital importance is the b7 pawn which prevents the white king's escape.
Dec-03-14  TheBish: Bosboom-Lanchava vs A Muzychuk, 2004

Black to play (35...?) "Medium/Easy"

35...Rxd3+! 36. Kxd3 Rc3+ 37. Kd4 c5+ 38. Kd5 Rd3#. Nice little mate in 4!

This just shows that even with queens off the board, the kings aren't necessarily safe to come to the center if enough pieces are still on the board. Instead of an endgame, this is really a queenless middlegame.

Dec-03-14  M.Hassan: "Medium/Easy"
Black to play 35...?
Black is a pawn up.

Exchanging a Rook with a Knight makes a huge difference:

35.............Rxd3+
36.Kxd3(forced) Rc3+ (not Rd2+??)
37.Kd4 c5+
38.Kd5 Rd3#
Neat

Dec-03-14  agb2002: Black is one pawn ahead.

Black can deliver mate in four with 35... Rxd3+ 36.Kxd3 Rc3+ 37.Kd4 c5+ 38.Kd5 Rd3#.

Dec-03-14  gofer: Boo Hoo, another simple forced mate...

<35 ... Rxd3+ 36 Kxd3 Rc3+ 37 Kd4 c5+ 38 Kd5 Rd3#>

...back to work then!

Dec-03-14  whiteshark: ♔♖♘♘♙♙ made a perfect team here.
Dec-03-14  dick50: Poor white pawn on c4. It was a Queen pawn opening. White c pawn was looking for early retirement after customary encounter with its foe Black d pawn, but d pawn never came on d5. At the end this pawn was embarrassed as it contributed to checkmate of his own King
Dec-03-14  morfishine: Nice corridor mate

*****

Dec-03-14  gars: "Medium/Easy"? More easy than medium I'd say, because it's been a long time since I last solved a Wednesday POTD.
Dec-03-14  zb2cr: Got the first move, missed the correct follow-up!
Dec-03-14  CHESSTTCAMPS: Black's active pieces are all better than the corresponding white pieces, with the attacking rook on c2 separating the white king from protection. With the WK having only one legal move, it makes sense to look for a mate.

35... Rxd3+! does the trick and the result is a forced mate with no branching lines: 36.Kxd3 Rc3+ 37.Kd4 c5+ 38.Kd5 Rd3#

And the extra pawn on b7 can claim full credit for the win.

Dec-03-14  patzer2: Maybe my middle of the board mate visualization is improving as evidenced by a quick 35...Rxd3+! 36. Kxd3 Rc3+ 37. Kd4 c5+ 38. Kd5 Rd3# mate-in-four solution to today's Wednesday puzzle.
Dec-03-14  TheaN: Wednesday 3 December 2014 <35....?>

Two knights around your king is always extremely risky. Knights shine because they take such a distinct space compared to the abstract pieces taking a file, rank and/or diagonal.

Black makes her knights count by sacrificing an abstract major piece:

<35....Rxd3+> and here white probably realized she should have taken the other knight more into the defense. After <36.Kxd3 Rc3+ 37.Kd4 c5+ 38.Kd5 Rd3# 0-1> the coordination of the black pieces is pure.

Dec-03-14  patzer2: For my taste, there's too many pieces moved too many times in the opening for White.

Instead of 8. Qa4 Nbd7 9. Qa3 e5! , I like 9. Nc3 to .

Dec-03-14
Premium Chessgames Member
  Bubo bubo: 35...Rxd3+ 36.Kxd3 Rc3+ 37.Kd4 c5+ 38.Kd5 Rd3# Interesting mating pattern!
Dec-03-14
Premium Chessgames Member
  Penguincw: Damn it! I thought I got this puzzle. I got as far as 35...Rxd3+ 36.Kxd3 Rc3+ 37.Kd4 (36...Rd2+, and the king sneaks through c3) and that's it <but>, show me the position after 37.Kd4 and I would've gotten the mate (couldn't quite visualize all of this in my head).
Dec-03-14  TheaN: For what it's worth, in my opinion after Bosboom decides to take the rook on move 36, she should have allowed the whole mate combination. Resign on the combination trigger or play on till mate.
Dec-03-14
Premium Chessgames Member
  paulalbert: Surprisingly found the Rxd3+ and forced mate very quickly. My first instinct was to try to divert white's R on e1 to get black's Rc2 to e2 for mate, but no sensible way to divert Re1, so fortunately didn't waste time on that. Saw I could drive white's K naked into black's territory and the weak P on b7 ( backward on an open file) kept the mating net closed deep in my own territory, so it worked.
Dec-03-14  Castleinthesky: CG's most difficult puzzle ever and I solved it, whoo hoo! (I have to do something to boost my ego on a Wednesday)
Dec-03-14  Cheapo by the Dozen: I looked at a number of other possibilities first. Cool problem.

(I'm back, after two weeks off grandparenting ...)

Dec-03-14  TheTamale: I saw 35)... Rxd3+ as the likely first move, but for some reason I could only see 36)... Rd2+ as the follow-up instead of 36)... Rc3+. I probably don't need to mention that I'm not a very good chess player.
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