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Manuel Madeira de Ley vs Julio Bolbochan
Rio de Janeiro it (1952), Rio de Janeiro BRA, rd 14, May-??
Indian Game: Kingside Fianchetto (A48)  ·  0-1

ANALYSIS [x]

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Kibitzer's Corner
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Sep-28-10
Premium Chessgames Member
  patzer2: For today's Tuesday puzzle, 23...h5! removes the guard over the Knight while simultaneously threatening the Rook. As <Life Master AJ> observes, this wins at least the exchange.

As such, 23...h5! combines the double attack and deflection (removing the guard or defender) tactics, threatening to win the Knight if the defending Rook moves off the rank or the Rook for a Bishop if the Knight moves to e3.

Sep-28-10  lost in space: Took me longer than usual on a Tuersday. First tried it with sucs and queen moves (23...Qc6 24. Ne3), but this is not working out (only 2 active black pieces, no serious mate threats).

After a while I saw 23...h5, winning at least the exchange.

Sep-28-10
Premium Chessgames Member
  Check It Out: <First tried it with sucs> Sucking usually doesn't work out ;)
Sep-28-10
Premium Chessgames Member
  whiteshark: The the key element is the overburdened defiant rook.
Sep-28-10  TheBish: M Madeira de Ley vs Julio Bolbochan, 1952

Black to play (23...?) "Easy"

Black wins an exchange after 23...h5 (removing the defender) 24. Ne3 (counter-attack) hxg4 25. Nxd5 Qg5 26. Nxe7+ Kh7 and Black threatens both 27...gxh3 and 27...Rfe8.

Sep-28-10
Premium Chessgames Member
  agb2002: Black has a bishop and a pawn for a knight.

The knight is protected by the rook, which only has a safe square to move (g3). Therefore, 23... h5:

A) 24.Rg3 Bxc4 followed by ... Bxf1 - + [R+P].

B) 24.Ne3 hxg4 25.Nxd5 Qd6

B.1) 26.Nxe7+ Kg7 27.Qc3+ f6 28.Re1 Rfe8 29.Qe3 gxh3 (29... Kf7 30.Qh6) 30.gxh3 Rad8 - + [R vs N]. Black threatens 31... Kf7 32.Qh6 Rxe7 33.Qh7+ Ke8 34.Qg8+ but the QR is protected now.

B.2) 26.Qe4 gxh3 27.Nxe7+ (27.gxh3 Rfe8 - + [R+P vs N]) Kg7 28.Nc6 Rfe8 - + [R vs N].

Sep-28-10  gofer: Well nothing came to mind immediately, then the rook trap looked possible, then it was obviously that the rook can move back to g3, but in doing so white loses Nc4 and also is forced to exchange down again after Bxf1! So I think the answer is the exchange, but that doesn't seem a huge advantage, but from small beginings great things are achieved!

23 ... h5
24 Ne3 hxg5
25 Nxd5 Qd6

and now Nxe7+ is not available (26 Nxe7+ Kg7 27 ... Nfe8) and white is struggling to hold onto the knight.

26 Ne3 gxh3
27 gxh3 Qe6 winning another pawn.

a RvN exchange up and 2 pawns up. Game over...

There are alternatives, i.e. taking Pa2 and then trying to promote Pa6, but this is probably a lot slower...

Time to check...

Sep-28-10  gofer: 25 ... Qg5 is so obvious when you see it played, but when will I find it OTB!??? Probably never...
Sep-28-10  zb2cr: Took me a while to find it, but find it I did. I have nothing to add to the commentary from <Formula7>, <VincentL>, <dzechiel>, <LifeMasterAJ>, <M.Hassan>, <Once>, <patzer2>, <lost in space>, <agb2002>, and <gofer>.

Oh, and <beginner64>, you wrote: "But, on 27. h4, what is wrong with 27.. Qxh4". There's nothing really wrong with it--but the move made traps the Knight, so that Black will finish by being up a full Rook, instead of being up by the excahnge and a Pawn.

Sep-28-10  Patriot: 23...h5 should at least win the exchange. 24.Re4 Bxe4 25.Qxe4

<gofer> <25 ... Qg5 is so obvious when you see it played, but when will I find it OTB!??? Probably never...>

Don't be so hard on yourself! I didn't even consider 24.Ne3, which even though it does not immediately avoid losing the exchange, it does provide some counterplay so it should be considered. There's nothing wrong with 25...Qd6 as you suggested (see <agb2002>'s post).

Sep-28-10  Patriot: <beginner64>, <zb2cr> explained it well. 27...Qxh4 is certainly tempting, but the pawn is an attempt of distracting black from bigger fish. It's a reminder for all of us not to play automatically on first instinct, but to look around to see if there is anything better.
Sep-28-10
Premium Chessgames Member
  beenthere240: The knight also gets hung up in the variations I've looked at, so it's more like the loss of a rook than the exchange.
Sep-28-10  zooter: 23...h5 wins the exchange after 24.Ne3

Don't think there is anything better in this position. Saw this instantly in a second and back after a week's break. Hope I'm right

Sep-28-10  YetAnotherAmateur: It's worth mentioning that Rg3 (abandoning the knight) makes things much worse for white, because after Bxc4 then white has no good way of preventing Bxf1.

The game line looks like the best fight white could put up after 23. ... h5

Sep-28-10
Premium Chessgames Member
  kevin86: No clue on this one-rare for a Tuesday.
Sep-28-10  YouRang: White with two ugly rooks:

- One exposed and bearing sole responsibility for guarding the attacked knight.

- The other is paralyzed, a sitting duck waiting to be shot along the diagonal.

So kick the exposed rook 23...h5, and white must save the knight lest 24...Bxc4, winning the N with an indefensible attack on the paralyzed rook.

Sep-28-10  psmith: This took me too long to find. Not expecting a pawn move, I guess.
Sep-28-10
Premium Chessgames Member
  chrisowen: Chacun a son gout? Hammy again discovered push navigator h5 all support you gall rook g4. Case is fortifies in king land er swanny ko finish after delivering 30.fxg6. Off break near Ne3 prefect black saw leg end. The fall steed it nomad ie you scent Nd5 victory cashing sac e7. Lo, bullets used however horse jig that fault he rook down. Julio nack dont equal a trade. Sitting duck, De Ley hands segregate stallion timber. Material eternal, sac entwine whites decorum over.
Sep-28-10  slithytove: I would think in general it is better to lose the exchange than a piece, so would consider Ne3 even if Rg3 didn't result in the loss of the other rook after Bxc4. Otherwise, <chrisowen> says it all.
Sep-28-10
Premium Chessgames Member
  Domdaniel: <Once> A fine witter, as witterings go. Routinely, in these positions (even easy ones) there's some kind of follow-up that needs to be examined. Not here: 23...h5, end of story. Choose your own continuation. Anyone who awards themselves points for these things can take the full point after ...h5: White has various ways to play on for a while, and they're all bad.

I agree completely about the value of the pieces: it's a small miracle that a Bishop and Knight, with such totally different powers, should be so close in value that books are written about the difference. I love these imbalances: when a minor piece is better than a Rook, or how a bunch of pieces can bamboozle a Queen.

If these are witters, we must be weeting...

Sep-28-10  wals: Didn't get the text moves

Analysis Rybka 4 x 64

White: depth 18 : time 4 min:
(-1.22):10.Na3.
Best,

1. (-0.52): 10.Nc3 Bf5 11.a4 Rc8 12.Ra3 cxd4 13.exd4 Re8 14.Be3 e6 15.Bd3 Qd6 16.Re1 Nxc3 17.Rxc3 Be4 18.Bxe4 dxe4 19.Ng5 f5 20.Rb3 Na5

White: depth 22 : time 15 min :
(-1.98):13.Nxd4.
Best,

1. (-1.25): 13.c3 Nxe2+ 14.Qxe2 Bf5 15.Rbd1 Rad8 16.Rfe1 Rfe8 17.Be3 Qc7 18.Ng5 Nxg5 19.Bxg5 f6 20.Be3 e5 21.g4 Be6 22.Nc2 Qc4 23.Bb6 Rd7

2. (-1.29): 13.Be3 e5 14.Bd3 Nc5 15.Nxd4 exd4 16.Bf4 Re8 17.b4 Na4 18.Qf3 Qe6 19.b5 Nc3 20.Rb3 b6 21.Ra1 a5 22.Bg3

White: depth 15 : 3 min ;
(-2.59):23.Rg4.
Best, Rg4 is the best, Nd2, Qe3 are
-2.84.

White went further down with 28.Qe4,
-4.69, and resigned move 31, with a pawn for a Rook.

Sep-28-10
Premium Chessgames Member
  Domdaniel: There's also an important point here about Rooks, and their comfort zone. A Rook on any of the first three ranks is reasonably safe from attack and is a good long-range weapon; a Rook that has penetrated to the 6/7/8 ranks is probably inflicting damage on the enemy position, having broken through the pawn shield. But a Rook in the middle - the 4th or 5th ranks - is always liable to get trapped like this. It's what makes a Rook lift via e4 so much riskier than one via e3.
Sep-28-10  rapidcitychess: 23...h5 is pretty easy to find once you get the idea.
Sep-29-10  turbo231: It's amazing how simple it is after you see the proper move. And you wonder why you didn't see it in the first place. Or I didn't see it.
Sep-30-10
Premium Chessgames Member
  chrisowen: Foot mon amis <slithytove> nd5 la garde de nuit? We've a dammd stranded string rook g3 bxc4 cats nip bud stacd zion knight ear dress piece down it eliminated room, phenome soul nxd5 gets MM up in polyester> dandy
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