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Lars Schandorff vs Thomas Willemze
8th Batavia Chess Tournament (2016), Amsterdam NED, rd 5, Feb-23
Indian Game: Knights Variation. General (A46)  ·  1-0
ANALYSIS [x]

FEN COPIED

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Kibitzer's Corner
< Earlier Kibitzing  · PAGE 2 OF 2 ·  Later Kibitzing>
Nov-14-17  saturn2: RxN and black cannot retake
Nov-14-17  newzild: Took me longer than Sunday!
Nov-14-17
Premium Chessgames Member
  Once: It's a PPP - piece protects piece. The black bishop is defending against two threats - Rxb6 and Ne7+. Make him choose one and then impose the other.

Fun

Nov-14-17  leRevenant: Easyweek (at least for starters) is a pleasant change. <newzild:> surprises me.
Nov-14-17
Premium Chessgames Member
  morfishine: <27.Rxb6> and thats that

*****

Nov-14-17
Premium Chessgames Member
  thegoodanarchist: 27.? White to move would make a good Monday puzzle :)
Nov-14-17
Premium Chessgames Member
  Squire49: Agree, rather a Monday puzzle.
Nov-14-17
Premium Chessgames Member
  patzer2: <Once> Technically, I suppose 27. Rxb6! is an "overloading" or "overworked piece" tactic which exploits the fact that the Bishop on d8 cannot simultaneously protect the Knight on b6 and guard against a royal fork on e7.

However, I still like your PPP for helping novices learn the tactic. Maybe we could add PPP&S -piece protects piece and square as a separate category.

Nov-14-17
Premium Chessgames Member
  mjmorri: <FSR ♫♪♫ Basically, it's as easy as pie. ♫♪♫> Len Barry LOL.
Nov-14-17
Premium Chessgames Member
  WorstPlayerEver: The Knight dominates the Bishop. It only needs a little help.
Nov-14-17
Premium Chessgames Member
  chrisowen: Marks vet bin b6s barrage by minds 25...Bd8 cage man huff hove flud dankhangs o vis 3 4 auld gate taurus bull i vim by dangs 25...Qxd5 cage u duffas huff hovel flud vet 2 auld gate taurus bull i vim by baffles 27.Rxb6 jah us barrage 4 5 vet auld gate taurus bull i vim ave marks b6s baffles gram vam dink mag gad ram hq bits vis bint bin lip nib nip flu joe cave coe v it's vast gone hid vivas it's vast viva von guv hone vis luv dig vow deign oh ive ho die hong hint vim dine hog hind ego vis do neigh b6s baffles vis rack ram kram van mark mag luv gram vam gack mug gad dutch hq quest d8 danghunts bits vis bint quart c6 cuffarc vet bins hmm pint pin nip vis family blip vote puff vis frank flew law cow jet joe cave coe v it's vast gone hid vivas luv gram vam vow vet by baffles 27.Rxb6 jah us barrage 4 5 vet auld gate taurus bull i vim jah bah crash ave had flav flash hang huh vis hunt hah hack hall ham happy flav quash rah has hat b6s baffles babyhug backlug banghog barrage baylung belfry fab bafta buff luv buffy flubb fab by minds 25...Bd8 cage man huff hovel flud dankhangs o vis 3 4 auld gate taurus bull i vim by dangs 25...Qxd5 cage u duffas huff hovel flud vet 2 auld gate taurus bull i vim buffs baffles back frank vam dabs dubs bada vis flubbs dank dusty duffas u d8s danghands vis lust last walls vis wants lugs tawny tally talls far palm rum vet wads mid dip dive vote vim divine cab band us label back crack dusk vam bats chump dang band u nack by nah hang bat bantam but tubby tuba brat vam huff had hud dutch flav flash flush vis card it ok von guv cad had hud dutch cad dracula vamp rad dark darn curds ums eoyores d8s dankhungs iffy gaff vis jet ave marks b6s bluffas;
Nov-14-17
Premium Chessgames Member
  ChatGrognon: Got it :) ...The bishop had clearly too much to do!
Nov-14-17
Premium Chessgames Member
  morfishine: Classic overload: Can't be in two places at the same time!

*****

Nov-14-17  BOSTER: Maybe the best way to escape overloaded tactics was unpin black queen playing 23...Qe8.
Nov-14-17
Premium Chessgames Member
  kevin86: RxN and black must lose a piece or the queen will be forked at e7! Easy as pie, but not as easy as pi 3.14159265358979...
Nov-14-17  BOSTER: <notyetagm: 3 seconds>. What keep you so long?
Nov-14-17
Premium Chessgames Member
  FSR: kevin86 - pi isn't so easy, or at least (before computers) it didn't used to be. There were some people who spent decades of their lives calculating pi.
Nov-14-17  TheaN: <27.?>

A lot more clear than last week (typically the two puzzles I've done now in a week are two Tuesdays). Material is even, and white overloads Bd8 with <27.Rxb6> basically ending the game on the spot. Black has no reasonable lines to consider. He either goes down a full piece or more in all variations, the main point being <27....Bxb6 28.Ne7+ 1-0>

Nov-14-17  yureesystem: IM Willemze was asleep at the board, not seeing 24.d5! shouldn't be too difficult for a IM to see this very dangerous move 24.d5! coming, we can excuse a CM failing to see it. After 25.Nxd5 Bd8?? this move is a blunder and lose a piece, much better is 25...Qxd5 26.Qxd5 Nxd5 27.Rxa8 Rxa8 28.Ra8+ Kg7 and black just lose the exchange. Even strong players succumb to simple tactics; I believe tactical study should be done everyday, I know two very strong FM before a tournament concentrate on tactics study to keep sharp in their games.
Nov-14-17  DrGridlock: Took me a while to identify that black's bishop on d8 was over-worked. I first looking for a way to jam White's queen into g7 and ways to gain tempos to do that. Next I noticed that Black's queen was unguarded, and that an uncovered attack on it by a knight check from d5 to f6 would be lethal. Finally found the over-worked bishop which was the key to the puzzle.
Nov-14-17  AlicesKnight: Late seeing this today. Oh - not complex; Rxb6 wins a piece, as recapture by the B allows the N fork on K and Q....
Nov-14-17
Premium Chessgames Member
  Willber G: <FSR: kevin86 - pi isn't so easy, or at least (before computers) it didn't used to be. There were some people who spent decades of their lives calculating pi.>

Here is Kate Bush's rather nice take on it:

https://www.youtube.com/watch?v=W8R...

Nov-14-17
Premium Chessgames Member
  Cheapo by the Dozen: I found this to be of fair Tuesday difficulty, perhaps spending a full minute to solve it. The bishop didn't jump out at me as a candidate to be overloaded, so I didn't solve the problem until I ran through the list of forcing moves and their consequences.
Nov-14-17
Premium Chessgames Member
  Bubo bubo: The black bishop is overloaded: it has to protect the knight and must guard e7 against the royal fork. Hence 27.Rxb6 simply wins a piece.
Nov-14-17  Nullifidian: 27. ♖xb6

If 27... ♗xb6, then 28. ♘e7+ followed by ♘xc6

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