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David Janowski vs John Stuart Morrison
9th American Chess Congress (1923), Lake Hopatcong, NJ USA, rd 5, Aug-11
Queen's Gambit Declined: Semi-Tarrasch Defense. Symmetrical Variation (D30)  ·  1-0
ANALYSIS [x]

FEN COPIED

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sac: 32.Bh6+ PGN: download | view | print Help: general | java-troubleshooting

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Kibitzer's Corner
< Earlier Kibitzing  · PAGE 2 OF 2 ·  Later Kibitzing>
Oct-29-13  MountainMatt: Nice one. 32. Bh6+ Nxh6 33. Qh8+ followed by 34. Rf6#.

First?

Oct-29-13  MountainMatt: Shucks
Oct-29-13
Premium Chessgames Member
  bharat123: 32.Bh6+ Nxh6(if 32.. Kf7 33.Qg7#) 33.Qh8+ Nf8 34 Rf6#
Oct-29-13
Premium Chessgames Member
  al wazir: 31. Qh8+ would have put black out of his misery sooner.
Oct-29-13  stst: Brute force (RxR+) does no good.
Try
32.Bh6+
IF (A).... Kf7, 33.Qg7# is real easy; BUT
IF (B).... NxB, 33.Qh8+ Kf7, 34.Qxh7+ Kf8
35.Rf6#
Oct-29-13
Premium Chessgames Member
  FSR: I had a little difficulty with this one for some reason. 32.Bh6+! Nxh6 (32...Kf7 33.Qg7#) 33.Qh8+ and 34.Rf6#.
Oct-29-13
Premium Chessgames Member
  FSR: <al wazir: 31. Qh8+ would have put black out of his misery sooner.>

True enough. Surprising that Janowski missed it.

Oct-29-13  stst: < 31. Qh8+ would have put black out of his misery sooner.> True, not sure why Janowski moved the B in 31. He didn't see that? or he intentionally prepared for the move by the B in move 32? etc.
Oct-29-13
Premium Chessgames Member
  Infohunter: <stst: < 31. Qh8+ would have put black out of his misery sooner.> True, not sure why Janowski moved the B in 31. He didn't see that? or he intentionally prepared for the move by the B in move 32? etc.>

Probably he had already decided on a plan that would win, and therefore simply was not looking for a better one. That would be my first guess.

Oct-29-13  M.Hassan: "Easy"
White to play 32.?
Equal in materials.

32.Bh6+
<if...Kf7 33.Qg7#>
32...........Nxh6
33.Qh8+ Ng8
34.Rf6#
Quite neat!

Oct-29-13
Premium Chessgames Member
  agb2002: White has the bishop pair for a bishop and a knight.

Pattern recognition finds the mate scheme


click for larger view

Therefore, 32.Bh6+ Nxh6 (32... Kf7 33.Qg7#) 33.Qh8+ Ng8 (or 33... Kf7) 34.Rf6#.

Oct-29-13
Premium Chessgames Member
  diagonalley: "easy" it may have been, but it took me an inordinate amount of time to envisage the sequence to disable that pesky knight
Oct-29-13
Premium Chessgames Member
  gofer: Nice and simple...

32 Bh6+ Nxh6 (Kf7 Qg7#)
33 Qh8+ Kf7 (Ng8 Rf6#)
34 Rf6#

Oct-29-13  Kikoman: <Puzzle of the Day>

32. Bh6+! Nxh6 (32...Kf7 33. Qg7#) 33. Qg8+ Kf7/Ng8 34. Rf6# and that's it! :D

Oct-29-13
Premium Chessgames Member
  morfishine: Nice deflection <32.Bh6+>

(1) 32...Nxh6 33.Qh8+ Kf7 34.Rf6#

(2) 32...Kf7 33.Qg7#

*****
<FSR> I was thinking the same thing

*****

Oct-29-13  zb2cr: Found this one quickly. I have nothing to add to the comments by <dick50>, <Bartimaeus>, <MountainMatt>, <bharat123>, <stst>, <FSR>, <M.Hassan>, <agb2002>, <gofer>, <Kikoman>, and <morfishine>.
Oct-29-13
Premium Chessgames Member
  gawain: Nice puzzle. I had only one false start before finding the right road via Bh6+ abd Qh8+
Oct-29-13
Premium Chessgames Member
  kevin86: Mate to come quickly-either by pin or by epaulette.
Oct-29-13
Premium Chessgames Member
  chrisowen: I reverse the trend for one chaff in chooser-

vantage h8 looks key after enter knight ghost see along back rank first h6+ off in que entombed at,

enact basically free que incede rook eg it is old 23...Ne7 liege nt a gains other by in a gurgle at fad gives a go be que etc am duffed really a king fetching f8 effect check free harangue aim blow quest cuffed bishop came ghosting h6 efface ogling tripling pieces in along efile seals the deal unusual bishop deployment in fifth if ive got this right 5.Bd3 reroutes to g2 at now in jam chook,

binding eg accounted for cabling g8 allows ground made up pay again best bishop cap off me tender h8 spot in g8 accustom que e5 nicely placed rook effectively swing e6 over f6 see a fog h6 biffed about fob off g8 boot a kind gg host came particular,

h8 its the bill in front h8 queen's at in be ensues a knight enough indeed believe it is to hint,

in gen 23...Ne7 oh ho verificated be cuff e5 in square rook fine reflect back in definately boots e5 ode won flow at ooh fertile ground g8 after h8 to mission b4 lade to rest I mate one in f6 at tergid hive covet lap free for eg in apostle a finger h8 said upright que neat finish starting in hip to 32.Bh6+ king heffa lump in f8 caged so,

knight grab see bishop ha flop over e5 bed cuffed h8 a bet black packs it up for lop 33.Qh8+ aim delivering jet hog 33...Ng8 34.Rf6#.

Oct-29-13  LIzzard: This one took me much longer than it should have - a little relieved to see it seemed the same for a few others
Oct-29-13
Premium Chessgames Member
  Penguincw: I was thinking of 32.Bxh6+ Nxh6 33.Qf6+.
Oct-29-13  Patriot: I see a line but it's kind of tricky for a Tuesday.

32.Bh6+

32...Nxh6 33.Qh8+ Ng8 34.Rf6#

32...Nxh6 33.Qh8+ Kf7 34.Rf6#

32...Kf7 33.Qg7#

Oct-29-13  Patriot: <agb2002> <Pattern recognition finds the mate scheme...Therefore...> If the pattern led you to the sequence, I'm impressed. I had to work out a sequence before visualizing the position as a win.
Oct-30-13
Premium Chessgames Member
  patzer2: I saw 32. Bh6+! forces 32...Kf7 33. Qg8# or 32...Nxh6, which decoys the Knight to h6 and deflects it away from g8.

After visualizing the forcing 32. Bh6+! Nxh6, it wasn't too difficult to find the unusual two-move mating pattern 33. Qh8+ followed by 33...Ng8 34. Rf6# (using the pin to protect the checking piece and force mate) or 33..Kf7 Rf6# (cutting off the King's escape squares with check and mate).

Oct-31-13
Premium Chessgames Member
  agb2002: <Patriot: <agb2002> <Pattern recognition finds the mate scheme...Therefore...> If the pattern led you to the sequence, I'm impressed. I had to work out a sequence before visualizing the position as a win.>

You surely have already noticed that in competition chess you never have enough 'stored' patterns.

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