Awonder Liang vs Aleksandr Lenderman (2019)

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Awonder Liang vs Aleksandr Lenderman
US Championship (2019), St Louis, MO USA, rd 1, Mar-20
Sicilian Defense: Four Knights. Exchange Variation (B45) · 1/2-1/2

ANALYSIS [x]

FEN COPIED

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Mar-20-19		Sally Simpson: * Moves 43 to 88 are 45 trail blazing moves in a double Rook ending. A lot of endgames books do not go near this ending. Dvoretsky's Endgame Manual skips it. (of course I do own the wretched thing, I peeked inside and looked at the Table of Contents) https://www.amazon.com/Dvoretskys-E... Peter Griffiths in 'The Endings in Modern Theory and Practice.' says: “Sometimes they are nothing more than complicated versions of single Rook endings..." That helps. Sounds like it's best to swap off a pair of Rooks ASAP so the players can get on with it. However he does add: "..but in many cases they [Double Rook Endings] have their own special characteristics.” and you get one example. I know my Tarrasch rule, get the Rook behind the passed pawn, but what do I do with the other Rook? Stick it also behind the passed pawn? That sounds like a waste of a good Rook. All Rook endings are drawn, but are Rook, Rook, Rook and Rook endings also always drawn. (where is this infamous Russian Schoolboy when you need him.) Happy to report John Emms gives Double Rook Endings a whole chapter in his 'The Survival Guide to Rook Endings.' In this game do check out the play from here. click for larger view And see for yourself why White had to give up the Knight. Some good Chess going on there and the moves leading up to it. *

Mar-20-19		patzer2: The final position (121. ?) might make for a good Monday or Tuesday puzzle. White draws with 121. Rb2!, which leads to a stalemate after 121...Rxb2 = or a drawn position after 121...Rc3 122. Kxf2 =.

Mar-21-19		Sally Simpson: * Hi Patzer2, Good spot. click for larger view But I think the best way to draw it would be 121. Rf4+ *

Mar-21-19		An Englishman: Good Evening: Much more interesting game than most. Four Rooks seldom stay on the board this long. Feeling most puzzled by Black's sequence from moves 70-73 leading to the loss of the h-pawn, given that R & f-pawn and h-pawn v. R is notoriously difficult for the weaker side to hold.

Mar-21-19		woldsmandriffield: Liang clearly overlooked the piece drop when he played 38 Kxe3 (presumably in time pressure). Luckily for him, Black's K-side pawns are shattered and weak. Since the single-Rook ending is drawn and White can maintain a 4th rank blockade, it is hard to see a winning plan for Lenderman without assistance from his opponent. 63 Rc8 is a strange move but doesn't spoil anything. Liang decided to force things with 68 b4 (he could just sit tight with 68 Rg2+ & Rg3) - a good decision.

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