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Walter John vs David Janowski
Mannheim (1914), Mannheim GER, rd 7, Jul-28
Sicilian Defense: Old Sicilian. Open (B32)  ·  1-0
ANALYSIS [x]

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Kibitzer's Corner
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Feb-27-15  woody b: easiest friday ever!

got it right to the end

Feb-27-15  Caissas Clown: <al wazir: I got the first five moves, and I don't think I would have had any trouble finding 24. Qc3+.>

<weary willy: A Wednesdayish Friday (in other words, I got the key theme almost immediately)>

Me too ! Though I =was= thinking to exchange and go into an ending two pawns up . I like to think I'd have spotted the easy and best QC3+ OTB. In fact , once you spot Rxe7 , it is a relatively easy puzzle.

Feb-27-15  morfishine: All in all, not a very challenging Friday puzzle position since White's move is practically forced. First, lets count material: Black is up a piece at the price of an exchange and an uncastled King. Positionally, White has a 2-pawn majority on the Q-side

<19.Rxe7+> realistically, the only move to keep the initiative

<19...Kxe7> forced

<20.Re1+> Black has three choices, all losing

*****
Its understandable the impatient Janowski, lover of Babes, Booze, Betting & Bishops, but hater of the endgame, chose <20...Kf8>. This was the quickest way to move onto his favorite vices

*****

Feb-27-15  CHESSTTCAMPS: White has rook+2 pawns for N+B. Black is uncastled, cramped, and tied up with pins. White can convert these advantages to a won ending with a forcing combination.

19.Rxe7+! Kxe7 20.Re1+ leaves black with various unpleasant options:

A) 20... Kf8 21.Bd6+ Kg8 22.Re8+ Bf8 (Qxe8 23.Qxe8+ Bf8 24.Qxf8#) 23.Rxf8+ Kg7 24.Qc3+ Kh6 25.Rxh8 wins (exchange+2 pawns up)

B) 20... Kd8 21.Bg5+ f6 22.Bxf6+ Bxf6 23.Qxf6+ Kc7 24.Qxh8 or 24.Re7 are both winning (I pick door #1).

C) 20... Qe6 21.Bd6+! Kf6 (Kd8 22.Qc7+ Ke8 23.Rxe6+ Bxe6 24.Qe7#) 24.Rxe6+ fxe6 (Bxe6 25.Qc3+ wins Bg7) 25.Qc3+ Kf7 26.Qc7+ Kf6 27.Be5+ wins most of what's left.

Time for review....

Feb-27-15  fokers13: saw the whole combination in under a minute

much easier than yesterday with the Rxe6 pitfall.

Feb-27-15  houtenton: Like already many others, the most unbelievable easy one among easy puzzles. Such as: open the site and see the whole combination in some milleseconds. No hidden first move, no discussion. The yesterday one, with probably two solutions, for me it was far more difficult. So I did not believe my eyes. Much more fun when there are more lines in it.
Feb-27-15
Premium Chessgames Member
  chrisowen: The e7 fright is it safe in said the knowledge majesty on the run as have the point feng shui arrange rook foghorn foggy it beneath again bind feeble frugal off ghost eg oh sore us of ghoul e7 get off eg guff again erudite no respite machine eclipse exactly evermore in entered an exacted ave a pond of flesh eg i f4 ecumens at hand ash fane follow a path g5 or etc d6 eedjuts e8 monarch lizard it beset on all paths again back estimate energies used in

egghead elegies eminate dog in dig equates the equator a line of errands estrange essayed his notion entraps oven cook entropy god f4 low in eunichs eulogies the invader f8 as tender i d8 enact better eyeball sanguine monarch rook registers and redeploys left rook recounted regrouped redactors cog burn e8 rejoinder clinch eg renovated no reprieves in rerouters monarch f8 retravels rewritten in tense over feegood d8 amorph i dutifuls change effron gee flow cage fetch in a wave too sai armour as i aim in flurry it is a vow in avarice count up d8 effect efface up ineffort in a feel of fence off f4 eg lunge d6 feckless form said g5 other bind join the dots sage baulk black blink back gas brave balances gave book bank bags each lab buck badges ala bunk i rung up a stake-out.

19...Kxe7 20.Re1+ at honour in hope a read real check off in bore down drill why man healthy return aim in brevity ramble give ergo awave re apply it affinity again to each way ave i e8 could go d8 chooses wrong a boar charge hook man get too a d8 stood still as a boot 20...Kf8 or go 20...Kd8 21.Bg5+ hind glean maneovre abreast age in as i say vet hood wink gloss over ignoble mission success an go lathe peg bind gores a monarch dutifuls again i gg head give sway g5 baby give an a 21...f6 22.Bxf6+ hinch forges the path a lift flight angle fluffs in flipflop monarch f8 a gog hand i puff in away a mind fright over done hush off puppy choose a fog hoof if the shoe fits end save finish edifice ogle first am pact furnish in so 22...Bxf6 23.Qxf6+ wins at back rook ash h8 exchange and three pawns ahead to a 21.Bd6+ a hood dipoff winked a bug about duties a vow arrive hand plod really assured

padre dreams off to get at monarch g8 a nest smoke dances around good huffle and shuffle go castle chip in do a 21...Kg8 22.Re8+ hunches a nut back evermore a culpa in h8 can get targeted among the sword force up erstwhile gotcha grin track back am padre f8 ill the gap how are you greet ok g8 majesty rambled give over it is bequeath in fat chance he effigies again rinse at f8 ho ho i st enteroff again bash in lush to go 22...Bf8 23.Rxf8+ i by proof festoons away vow rook flavour features among port of call safehoof majesty robbed g7 out of rooms h6 after ko c3 in us agree the coup de grace i band of men around padre dipoff queen creeps,

a f8 rook plum dress d6 source i f8 frogmarch home at g7 up hooks h6 a real around garners at bid 23...Kg7 24.Qc3 three pawns ahead h6 a mona on the run mates in due to come d7 thrown down the gauntlet monarch arch h5 and f4 low in h3 threaten it is

Feb-27-15  Marmot PFL: <All in all, not a very challenging Friday puzzle position since White's move is practically forced. >

I agree that white's attack almost, if not quite, plays itself, but his position is so good that even slower plans seem OK, like 19 Qc5, followed by Rad1 and Bg5 or Be5.

Feb-27-15  JimNorCal: <offramp>: yeah. I just hate those days when I suffer "total éboulement".

<morfishine> "Its understandable the impatient Janowski, lover of Babes, Booze, Betting & Bishops, but hater of the endgame"

Was he really a "babes" kind of guy? That relationship with the painter Nardus, who bankrolled his WC bids, seems dubious...

Feb-27-15  scormus: <Morf and several others> I don't want to know it was an easy Friday, it takes away my satisfaction about getting it quickly ;)
Feb-27-15  nalinw: %$#%&**&%$#

I can't believe that I didn't get this - the first move is so obvious. In my case I just didn't see the "x-ray attack" of the Q on e8 - through the Black Q!

Feb-27-15
Premium Chessgames Member
  Longview: Agree with <Morfishine> in his analysis. Also with <M.Hassan> "White should be careful of back rank mate on d1 and Bishop on d6 best to stay there to block Black Queen". The play seems well in hand though after the astute Qc3+ forcing the King to the h file and h3 will be a natural vent and pinion to control g4. Eventually Rxh8 will occur as well winnowing down the guard further.

Today I was at least awake/aware enough to recognize the pins in place. It is a chronic oversight of mine to miss the power of the piece that cannot move or defend because of the absolute or relative pin.

Bravo gang!

Feb-27-15  TheBish: W John vs Janowski, 1914

White to play (19.?) "Difficult"

This one looks vaguely familiar; I think I saw it once upon a time in a chapter of a tactics book about attacking the uncastled king.

19. Rxe7+! Kxe7 20. Re1+ Kd8

White is obviously winning after 20...Qe6 21. Rxe6+ Bxe6 22. Bd6+ Kf6 23. Qc3+, as well as 20...Kf8 21. Bd6+ Kg8 22. Re8+ Bf8 23. Rxf8+ Kg7 24. Qc3+.

21. Bg5+ f6 22. Bxf6+ Bxf6 23. Qxf6+ Kc7 24. Qxh8 (or 24. Re7), and if 24...Qd2 25. Qc3+ Qxc3 26. bxc3 simplifies to an easy R vs B endgame with three extra pawns.

Feb-27-15
Premium Chessgames Member
  Penguincw: I got 19.Rxe7+ Kxe7 20.Re1+ (any king move).

Although not winning, 19.Qxd7+ can't be bad. White will have a rook and 2 pawns vs. a bishop and knight, which should leave white as better.

Feb-27-15  zakkzheng: Kh6 Bf4+ Kh5 Qf3 Qg4 Qxg4 seems pretty convincing, but probably not the best
Feb-27-15  dfcx: Saw the first three moves right away, the rest are automatic.

19. Rxe7+ Kxe7 20. Re1+ Kd8 21. Bg5+ f6 22. Bxf6+ Bxf6 23. Qxf6+ Kc7 24. Qxh8

If black plays 20...Kf8 21.Bd6+ Kg8 22.Re8+ Bf8 23.Rxf8+ Kg7 24.Qc3+ mates

And 20...Qe6 21.Rxe6+ Bxe6 22.Bd6+ wins

This should be a Thursday or Wednesday POTD.

Feb-27-15  benjaminpugh: That seemed much more Wednesday-ish to me. Rxe7 was an obvious sacrifice and had to be taken by black's king. Once you realize that, each move thereafter was hard to mess up.
Feb-27-15
Premium Chessgames Member
  Gilmoy: I doodled it out this morning, then worked. Here's what I saw ...

Quickly: <19.Rxe7+ Kxe7 20.Re1+> is too thematic to miss. I note that the Bc8's support nullifies the Tuesday-ish cut-the-Q trick.

<20..Kd8 21.Bc7#> is easy. Hence the K does get chased:

<20..Kf8> and now the Bg7 is actually a hole-plugging traitor, like Naka's Rh2. White has weak back rank of his own -- don't play 21.Re7??

Ah -- the photon mate pattern tinkles softly. Black almost has WBR, except his K defends e8 -- so you force him to bounce off a mirror. <21.Bd6+> neatly shields White's WBR (if that still matters; it turns out it will not). <21..Kg8 22.Re8+> is a pretty X-ray protection. <22..Bf8 23.Rxf8+ Kg7 24.Qxc3+> looks sufficient.

White must have had this in mind from 14 or so, given his earlier sacs.

Feb-27-15  M.Hassan: <Longview:Also with <M.Hassan> "White should be careful of back rank mate on d1 and Bishop on d6 best to stay there to block Black Queen". The play seems well in hand though after the astute Qc3+ forcing the King to the h file and h3 will be a natural vent and pinion to control g4. Eventually Rxh8 will occur as well winnowing down the guard further.>

Thanks for the comment, but do not fully understand it. Can you elaborate please?

Feb-27-15  TheaN: Friday 27 February 2015 <19.?>

Black is just a move away from consilidating his position with O-O, due to the attack on his queen and behind two pieces for a rook white doesn't have all the time in the world, nor the moves, to prevent black from saving his cramped position.

<19.Rxe7+!> crashes through to immediately voiding black from safeguarding his king. <19....Kxe7> ignoring the sacrifice is out of the question (Rxd7 at least) <20.Re1+>. 20....Be5 just loses a crucial defender after 21.Rxe5+. Black can play 20....Qe6, but after 21.Qc7+! Bd7 22.Rxe6+ fxe5 23.Qxa7 white disrupts the black position and will win.

The main variations are the king moves. <20....Kd8<>> is relatively easy because it leaves no squares for the king; <21.Bg5+ f6 22.Bxf6+ Bxf6 23.Qxf6+ Kc7 24.Qxh8 <>> up an exchange and three pawns should be easy.

<20....Kf8> seems worse but gives black the g8 square as resource <21.Bd6+ Kg8 22.Re8+ Bf8> the black position is paralyzed. White should not make the mistake that after 23.Rxf8+?! Kg7 he goes into an opposite colored bishop ending after 24.Qxd7 Bxd7 25.Rxh8 Kxh8 and methods to win are slim, and very complex at least. Instead, white can turn it into a won rook ending with <23.Rxc8!> keeping the pin active and continue defending d6, whilst attacking d7 <23....Qxc6 24.Rxc6 Bxd6 25.Rxd6 > and white should win this. A more decisive combination I cannot find.

Feb-27-15  Cheapo by the Dozen: I'll go with

19 Rxe7+ Kxe7
20 Re1+ Kd8
21 Bg5+ f6
22 Bxf6+ Bxf6
23 Qxf6+ Kc7
24 Re7/Qxh8

Both of the alternatives on Move 24 look like they give won endgames, so I'd plan to evaluate which was better if the game actually got that far.

If Black's king heads to the kingside instead, we get

19 Rxe7+ Kxe7
20 Re1+ Kf8
21 Bd6+ Kg8
22 Re8+ Bf8
23 Qxd7 Bxd7
24 Rd8 (B moves)
25 Bxf8 h5

White will get to a bishops of opposites ending, up 3 pawns, for example in the sequence:

White spends a tempo to avert a threat against a light-squared pawn. Black spends a tempo to avert the thread of Bc5+/Rxh8/Bxa7 White kicks off the sequence

Bc5+ Kh7
Bd4+ f6
Rxh8 Rxh8
Bxf6+

Feb-27-15  morfishine: <Longview> Your comments are much appreciated. I did find some fun and challenge in trying to prolong resistance for Black, and think best would've been <20...Qe6> (instead of 20...Kf8 which leads to a quick forced loss). Position after 20...Qe6


click for larger view

Black can play on for awhile, but the pawn majority on the Q-side wins for White

*****

Feb-27-15  TheaN: Calculation blindness I guess, I pictured the rook on e8 in the 23.Rxf8+ Kg7 24.Qc3+ line, which then would allow 24....f6 without much trouble. Now, black will get hunted on and get mated eventually. My line wins, but not as decisively.
Feb-27-15
Premium Chessgames Member
  Mating Net: This puzzle was 11 ply from the given position, and it's still not over, not exactly easy IMHO.
Feb-27-15  stst: some plausible "first" move for White, e.g.
(A) QxQ+
(B) RxN+
(C) Qe4

But only (B) has the potential and pressing on with momentum,

So, after (B) RxN+ Black will be too reluctant to hide the K without a bite-back, hence KxR

following will be
(oh, what move number?)

Re1+ Kf8/d8 will invite the B's attack etc etc will lead to loss of material if not mate.

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