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Bartlomiej Macieja vs Roman Slobodjan
Bundesliga (2010/11), Aue GER, rd 11, Feb-27
Old Indian Defense: Tartakower-Indian (A54)  ·  1-0

ANALYSIS [x]

FEN COPIED

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sac: 30.Rxh7+ PGN: download | view | print Help: general | java-troubleshooting

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Kibitzer's Corner
Dec-31-20
Premium Chessgames Member
  FSR: 30.Rxh7+ Kxh7 31.Rh1+ Kg7 32.Be5+ dxe5 33.Qxe5+ Kg8 (33...Kf7 34.Rh7+ gets mated a move faster) 34.Rh8+ Kf7 35.Rh7+ Kf8 36.Qg7# (or 36.Qh8#).
Dec-31-20
Premium Chessgames Member
  thegoodanarchist: <FSR: 30.Rxh7+ Kxh7 31.Rh1+ Kg7 32.Be5+ dxe5 33.Qxe5+ Kg8 (33...Kf7 34.Rh7+ gets mated a move faster) 34.Rh8+ Kf7 35.Rh7+ Kf8 36.Qg7# (or 36.Qh8#).>

Agree that Rxh7+ just leapt off the page at me.

Dec-31-20
Premium Chessgames Member
  al wazir: Instead if getting harder as we go through the week, the puzzles are getting easier.
Dec-31-20
Premium Chessgames Member
  An Englishman: Good Evening: 17.g5 (preventing ...g5 now or later) proved more and more helpful as the game progressed, denying Knight access to f6, holding down the g6 pawn so that 24.h5 had a powerful effect, et cetera. Wondering much of that Macieja foresaw when he played the move.
Dec-31-20  Refused: 30.Rxh7+ Kxh7 31.Rh1 Kg7 32.Be5+ dxe5 33.Qxe5+ and the black king just gets hunted down by the Queen and the remaining Rook.

Edit: Forgot to write down Rh1+, saw it and played, simply forgot to write it down.

Dec-31-20  mel gibson: Black is snookered.
There are 2 solutions -
both mate in 7.

Solution 1 mate in 7
30. Rxh7+

(30. Rxh7+
(♖h1xh7+ ♔g7xh7 ♖d1-h1+ ♔h7-g7 ♗f4-e5+ d6xe5 ♕d5xe5+ ♔g7-g8 ♖h1-h8+ ♔g8-f7 ♖h8-h7+ ♔f7-f8 ♕e5-h8+) +M7/81 14)

Solution 2 mate in 7
30.Be5+

(30. Be5+ Bf6

(♗e7-f6 ♖h1xh7+ ♔g7-f8 ♖d1-f1 ♘c5-d3+ ♔c1-d1 ♘d3xb2+ ♗e5xb2 ♕e8-e7 ♖f1xf6+ ♕e7xf6 g5xf6 ♖b8xb2 ♕d5-f7+) -M7/74 8)

Dec-31-20  Mayankk: I think I would have wrongly played this attack in a real game by 32 Qd4+ instead of 32 Be5+, where the King can escape via the e4 square...
Dec-31-20  Brenin: Easy for a Thursday. 32 Rxh7+ Kxh7 (if 32 ... Kf8 then 33 Rh8+ wins the Q) 33 Rh1+ Kg7 are obvious, and the only slight subtlety is seeing 34 Be5+ dxe5 35 Qxe5+ rather than 34 Qd4+ which allows escape via Kf7 and Ke6.
Dec-31-20  morfishine: Got it, double combo, rook sac on <h7> followed by Bishop sac

Like an otter cracking open a clam

Dec-31-20  Walter Glattke: 32.-dxe5 33.Qxe5+ Kf7 34.Rh7+ Kf8 35.Qh8# /32.-Bf6 33.Bxf6+ Kf8 34.Rh8# / 32.Qe5+ not enough
Dec-31-20
Premium Chessgames Member
  agb2002: White has a rook for a knight.

White can force mate with 30.Rxh7+:

A) 30... Kxh7 31.Rh1+ Kg7 32.Be5+ dxe5 (32... Kf8 33.Rh8#) 33.Qxe5+ Kf(g)8 (33... Kf7 34.Rh7+ Kf(g)8 35.Qh8#; 33... Bf6 34.Qxf6+ Kg8 35.Rh8#) 34.Rh8+ Kf7 35.Rh7+ and mate next.

B) 30... Kf8 31.Rh8+ Kg7 32.Be5+ dxe5 (32... Bf6 33.Bxf6#) 33.Qxe5+ Kf7 (33... Bf6 34.Qxf6#) 34.Rh7+ and mate next.

Dec-31-20
Premium Chessgames Member
  Messiah: Unusually easy. Maybe I had luck, maybe not, irrelevant.
Dec-31-20  AlicesKnight: Got it. Even more interesting if you start from move 26 - a fascinating, semi-forced, sequence.
Dec-31-20  malt: Start with 30.R:h7+ K:h7 31.Rh1+ Kg7
32.Be5+ de5 33.Q:e5+ and mate in 3.
Dec-31-20
Premium Chessgames Member
  chrisowen: Fragile vilificate i vantage 30.Rxg7+ afford point backbeat it wibble about harangue mates 6 kushdy chops pablo favour fragile vilificate i vantage quagmire meltz it zul dj lodz vilificate JOD it is keys ponyhest vilificate i vantages riddle claws me totup jenga block dabble fancy bribe it was a cloister 30.Rxg7+ advance!
Dec-31-20
Premium Chessgames Member
  chrisowen: Headache material no?
Dec-31-20
Premium Chessgames Member
  chrisowen: No flashing lights?
Dec-31-20  King.Arthur.Brazil: The strike 30.♖xh7+ is evident, since the previous moves prepare it. The immediate sequence: 30... ♔xh7 31. ♖h1+ ♔g7 32. ♗e5+ dxe5 33. ♕xe5+ ♔f8 34. ♖h8+ ♔f7 35. ♖h7+ ♔f8 36. ♕g7# encourages the sacrifice. I would like to thank everybody on Chessgames, where I finished the year with 670 kibitzings on this site (with this one), since Fev/2009 (11 years). I feel glad to contribute something to the chessplayers of your site. God bless you! Happy 2021, everybody!
Dec-31-20  StevieB: Is 13.O-O-O a legal move due to the black bishop?
Dec-31-20  cormier: no ... it only apply to the K, not to the R
Dec-31-20
Premium Chessgames Member
  moronovich: <StevieB: Is 13.O-O-O a legal move due to the black bishop?>

Yes it is legal.As long as it is only the rook that passes the covered square it is ok.But if we imagine the castling in slow motion and the king passes b1 it would not be allowed and considered as a check.

Hope this clarifies and Happy New Year !

Dec-31-20  StevieB: All these years playing and I didn't know this. However, judging by my playing skills, I have a lot more to learn. Thanks everyone and Happy New Year!!
Dec-31-20
Premium Chessgames Member
  Gregor Samsa Mendel: <StevieB> Even Grandmasters can be thrown off by the rules of castling. See these:

Averbakh vs Purdy, 1960

Korchnoi vs Karpov, 1974

Dec-31-20
Premium Chessgames Member
  perfidious: <StevieB>, as either Averbakh or Korchnoi said in the aftermath:

<'Only the king? Not the rook?'>

Jan-01-21  Nullifidian: A white to move and mate in 7 puzzle without a single silent move seems on the easy side for a Thursday. This is surely a Tuesday or Wednesday puzzle at most.

30. ♖xh7+ ♔xh7 (♔f8 31. ♖h8+ ♔g7 32. ♕d4+ ♔f7 (♗f6 33. ♕xf6#) 33. ♖h7+ ♔f8/g8 34. ♕g7# or 33... ♔e6 34. ♕d5#) 31. ♖h1+ ♔g7 32. ♗e5+ ♙dxe5 (♔f8 33. ♖h8# or ♗f6 33. ♗xf6+ or ♙gxf6+ ♔f8 34. ♖h8#) 33. ♕xe5+ ♔f8/g8 (♔f7 34. ♖h7+ ♔f8/g8 35. ♕g7# or ♗f6 34. ♕xf6+ ♔g8 35. ♖h8#) 34. ♖h8+ ♔f7 35. ♖h7+ ♔f8/g8 36. ♕g7#

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