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Robert Graham Wade vs Jose Vilardebo Picurena
Barcelona (1946), Barcelona ESP, rd 2, Nov-10
Bishop's Opening: Boi Variation (C20)  ·  0-1



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sac: 22...Rxc4+ PGN: download | view | print Help: general | java-troubleshooting

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Kibitzer's Corner
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May-23-14  Patriot: Black is up a piece. White threatens 21.Qe6+ or 21.Qxa7+.


21.dxe4 Qe3+ 22.Kb4 a4+ 23.Ka4 Rxc4+

21.Kb3 Nd2+ 22.Kc3 looks a bit tricky to me. Black could aim for a draw if needed with 22...Ne4+.

21.Kb3 Nd2+ 22.Ka4 Nxc4 23.dxc4 Rxc4+ 24.Kb3 Qe3+ 25.c3 and I'm not sure what is next.

Usually a move like 21.Kb3 is not an issue but given white's threats it is potentially a big problem.

May-23-14  Patriot: I missed the simple 21.Kb3 Nd2+ 22.Kc3 Nc5#. I guess I was still seeing the pawn on e4...
May-23-14  sombreronegro: I'd really like 20 ... Qg3 with the move to pin the pawn, but it looks like it can be defused by escaping to d2. The knight sac on e4 looks interesting. You get two center pawns in compensation and pressure on the pinned bishop. However that knight is an active piece. Sacking the exchange R x c4 looks most promising to me. You have the white bishop and the knights looks poised to control the black squares in pursuit of the king. With exposed kings I think you need to pounce and keep active pieces.
May-23-14  sombreronegro: So its the knight sac.

<kjr63: Does 20...Rxc4 win also?>

Looks like I am going to need to find out as well.....

Premium Chessgames Member
  kevin86: The white king, far from home, but protected is quickly defeated when black's sacrifices open up the position.
May-23-14  therevolver17: 20..Nxe4+ (21.dxe4 (21.Kb3 Nd2+ (22.Kc3 Nd5#) 22.Kb4 a5+ 23.Ka4 Rxc4+ 24.dxc4 Qxc4+ 25.Qb4 Qxb4#) Qe3+ 22.Kb4 a5+ 23.Ka4 Rxc4+ 24.Qb4 Rxb4#) 21.Kb4 a5+ (22.Ka4 Nc5+ 23.Qxc5 bxc5 ) 22.Kb3 Nd2+
May-23-14  BOSTER: <Once:Sometimes it's not about the best thing to do or the right thing -sometimes it's about whoever ends up with the most material> (the conclusion after divorce)
This is a <greedy> philosophy.

"Principle of Give and Take" is in our life, love and chess.

Every move in chess gives up something and takes something.

Like a <hole> is a weakness in the Pawn structure ,your <greedy> philosophy has many <holes>.

I can't support your <greedy> philosophy , but I like your imagination when you was talking about <holes> in the emmental cheese.

Believe me I feel the scent even today.

Premium Chessgames Member
  chrisowen: Aid in e4 stoop maybe for one knight each in every,

jut land in e4 a blow to be sure light will have to aim his queen a line cain c5 or face the consequences of being mated out in the open winning formula flag hive in portray to believe in a camp,

cedes a ne4 wins I be proof as tend in ar good jangle a mind free now in cop dipoff knight indeed a shot in the arm and could even be a bolt from the c8,

blew for c4 Bob elects to feed i vantage off re you c4 have zip cave in zag sight arm f4 old queen one two sucker king lade to punch in show boater at a3 kind of cuts off am c3 inclined to think a chap plain sight for honour in hope for free dig in clinch aim fold over time immersion select aking there to be had as he e4looms large at c4 wheel in et tu brute a mind as having kind of cramped a king steady march in suited and booted victor comes about pugilist and monk to see off in up a piece black needs only to consolidate or go for an immediate conclusion sense again f6 leaps into the fray if ive got this a f6 correct light gone now c4 bishop can be picked at will in peg back c8 gains on the horizon seek shelter kin at c3 humble band comes f6,

under fire c5 if an attempt to sidestep the pins coming good sock it to me baby b5 needed again to stay c7 as put kind dilemma c8 as carves up er a3 ground and pound in caught head lights queen at a3 off side a knuckle head to free see kingood family,

am route one c4 looks a gentile foe good bishop goes ado to herd it now in doozy gloat over head a do be see lay e4 an f4 huddled king in free cornered seekin to erst while doomed take a stab in e2 an d2 for search in c3the c4 word preach affable mission in a3 jail house of queen blues knight c7

really could have stayed put although a light army is already down a piece often a port of queen fare ye a3 well at share f6 in e4 corroborates a knight c7 fluffs at go be old house of card it ardent in aim f4 topple at e3 have heads to see line glean an edge good b5 knight remain c7 I suppose the qwuestion arises over ignoble at kinbe each at a good or bad senses call I wag on e2 you lately come to think up heads around address the nation why go to c3 are pastures cued in frontal assualt you step,

c5 up d7 and behold a nest of sneaky serpents swarm ay flee for the hills try one for aint duty monarch as tend take down d5 instead feel as have mind ja bind a ship to set sail in to bed feint a line d5 see kin would benefit left in level it is pick in pine too fetch effluent a flight ie rien to gain kin mash up a grand gesture to flee the scene oceans apart though in safety aim c-colomn gets widened by the fact b5 line grabs a hot pawn am c7 to be caught cleanoff at get away c8 for free change c7 back be choose a free chin be nip in the bud light is one baked bean can of worms a bet ran into trouble and biked around curtain rail king mack c5 proves to be a kind square off e4 up on time a leap light aid in c4 duty ramble give spark our energy rates encircled over straight port of a3 call must down dive on his sword bishop is no use nor betcha line b5 out of the equation dutiful king march a done for e2 sets off I would try a punt 14.Bd5 do the math keep kings tight and safe a stipulate again feast takes place odd choice to side a black plan now takes shape to feast on his flesh in c3,

feed just do plied in your arms d5 look deeds to dream of c3 a safe haven instead light faces at c4 dishop douse the flames a c8 plumped cushion cacheted bed to free add f4 queen comes alive once at d3 regains knight a mate seems to poke a head around the corner in e3 queen and bishop bemoans lack of room a f6 leap to do the deed a better glide biffed about red c4 in d5 for me king under more pressure a minder d7 I against in a3 que c4 to b5 ankled judge said aim ford the gap f4 act free cat a lone often eg liege nt I length curious again bind ratchet c8 strikes for cold gold said as I go aha drive in e4 after knight black f6 boots 20...Nxe4+ at beck and call to book eg get head c5

each in d3xe4 mate in 10 enter the centre d7 relatively safe whilst counter else where makes ends meat fabled able and willing a dabble to fled the scene as hive a c8 limpoff caught the train down bishop eg c4 hood wink he good deeds ever nearly one cross mind to a 21.dxe4 in deep trouble as to I 21.Kb3 Nc5+ line curl and flex bold king in bows like a chameleon cycle around to up clean as a3 a whistle mon amigo has to queen chuck aim a c5 in face off piece light black wins c5 her majesty.

Premium Chessgames Member
  Domdaniel: What do you get if you cross Misha with Mathers?


Premium Chessgames Member
  Once: <Sally> Like your Willy Nelson quote very much!

It's funny, but I read the Chernev quote a little bit differently. For me he isn't saying that you shouldn't look for mating combinations. What he seems to be saying is that when you have found a winning combination don't waste time looking for one that it a little bit quicker or flashier. Many a slip twixt cup and lip, and all that.

Premium Chessgames Member
  Once: <kjr63, sombreronegro...Does 20...Rxc4 win also?>

I wondered the same thing too! In human mode I spent a long time looking at 20...Rxc4, in the end deciding that the game continuation was more forcing.

Fritzie says that 20...Rxc4 21. Kxc4 Rc8+ is worth about -1.89. After 22. Kb3

click for larger view

Black is still ahead in material but has no easy way of getting at the white king. So I'd say that 20... Rxc4 was certainly playable and ought to lead to a black advantage but it is not as decisive as the text.

May-23-14  sombreronegro: < Once
wondered the same thing too! In human mode I spent a long time looking at 20...Rxc4, in the end deciding that the game continuation was more forcing.>

Thank you kindly, Once.

Yes that line looks quite like the best under the circumstances for white where in fact the king capture, even though it loses tempo, keeps the white pawn center.

Lesson learned here is the knight sac destroys the pawn formation by force whereas white has the option not to do so clearly with 20...Rxc4 21. Kxc4 . So it looks to me that the better principle was to open the position actively rather than assuming it will passively which is not in fact forced. Interesting....

May-23-14  eblunt: I had as per the text, but 22 ... Qc5 + followed by QxB+ and then taking the Knight. Putting Black to pieces up, and also removing any attack black possibilities. That's what I'd play OTB anyhow; wins without any sacrifice that I might have miscalculated !
Premium Chessgames Member
  Domdaniel: <Once> I thought, as much as any of us here, that you were *always* in <human mode>...

So what's the alternative? Inhuman mode?

Premium Chessgames Member
  perfidious: Not so difficult as advertised.
May-23-14  LIzzard: Did anyone else go with 23: Rc8+ instead of Be2+? I still like that more than that used in the game.
May-23-14  sombreronegro: <Domdaniel: So what's the alternative? Inhuman mode?>

On a good day I can get as close to human mode as a Border Collie opening a door latch. Most of the time I can only smell the difference between chicken and pork.

May-23-14  saniloma: Would not 22...Qc5+ cause mate in 2 with any response? Why sacrifice the rook?
Premium Chessgames Member
  scormus: <Once> your words are the wisdom of the old bull :)
May-23-14  Madman99X: <salinoma> after 22... Qc5+ 23. Ka4 Qxc4 24. Qb4 Qxb4 25. Kxb4

click for larger view

This certainly wins because black is up material, has better pawn structure, and better piece placement, but the white king has lived to fight another 20 moves or so.

May-23-14  Capacorn: <Sally Simpson: I know the Chernev quote very well. I've often wrestled with it...

The advice is good but perhaps out of place in a book for a student of the game. The good player with a win by technique on the table very rarely screws it up...>

Irving's advice is well taken, but I tend to agree with you, Sally. In the end, like everything else on the board, judgement reigns supreme; and practical continuations don't always equal boring continuations.

In this particular puzzle, I analyzed the first couple of possible replies to 21...Nxe4+. I saw the general outline of the mating net -- not every single move -- but that was enough. The remaining moves all clearly suggested themselves. One would've had no problem finding them over the board. It's intuition, but certainly not any kind of profound feel for tactics.

In this specific example, I consider the knight sac and the ensuing tactics a matter of practicality. It's there. Take it. As Steinitz taught: If you have an advantage, you must attack. Otherwise, you risk losing the advantage. Looking for a "safe" way to win might mean throwing away the tactical solution right under your nose. Fortune favors the brave.

May-23-14  stingray0104: <saniloma> 22. ... Qc5+ also wins but it is not a mate in 2; for instance, 23. Ka4 Qxc4+ 24. Qb4
May-24-14  TheBish: Wade vs J Vilardebo Picurena, 1946

Black to play (20...?) "Difficult", Black is up a piece.

The fact that Black is already up a piece should make this not so difficult! Having said that, Black can finish things quickly.

20...Nxe4+! and now:

(A) 21. dxe4 Qe3+ 22. Kb4 a5+ 23. Ka4 Rxc4+ 24. b4 Rxb4+ and wins White's queen.

(B) 21. Kb4 a5+ 22. Kb3 (or 22. Ka4 Nc5+ wins the queen) Nd2+ 23. Ka4 (or 23. Kc3 Nd5#) Rxc4+! 24. dxc4 Qxc4+ 25. b4 Qxc2+ 26. Qb3 Nxb3 wins the queen.

(C) 21. Kb3 Nd2+ 22. Ka4 (or 22. Kc3 Nd5#, or 22. Kb4 Rxc4+ 23. dxc4 Qxc4#) Nxc4 23. dxc4 Qxc4+ and now 24. b4 Qxc2+ 25. Qb3 Qxb3+ or 24. Qb4 Qxb4+ 25. Kxb4 Rxc2 and wins.

Premium Chessgames Member
  Once: <Domdaniel> In human mode we dream, experience fear, make mistakes, receive divine inspiration from one or more of the muses, remember fondly childhood sweethearts, ponder the meaning of the universe, doodle ...

.. and we try to solve CG POTDs with little more than our own noddle and a mug of strong black coffee. Sometimes two. Mugs, that is, not noddles.

In Fritzie mode, we turn on the unblinking silicon servant and find out what we really should have played. Fritzie can't be reasoned with. He doesn't feel pity, or remorse, or fear. And he absolutely will not stop, ever, until you are beaten.

Once upon a time, or maybe twice (I don't know tech stuff), some of our dear colleagues on this site have insisted that we should make it clear when we are using computer assistance.

So I do. Human mode = no Fritzie.

May-24-14  kjr63: Thanks Once. I though about 21...Nxe4 variation that looked promising. I thought only Qd6+ and did not see Qxa7+. However Computer gave still 0.00 ,white escapes to draw: 1. ... Rxc4+ 2. Kxc4 Nxe4 (Stckfish at depth 30) 3. Qxa7+ Ke6 4. Qxb6+ Nd6+ 5. Kb3 Nf5 6. Rae1 Rc8 7. a3 Qd2 8. Ka2 Rxc2 9. Nxd6 Nxd6 10. Qb3+ Kd7 11.Rxe5 Bg4 12. Qa4+ Kc7 13. Qa7+ Kc8 14. Qa8+ Kd7 15. Qa7+ Kc8 (score: 0.00) *
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