Apr-15-12
 | | Ulhumbrus: 27...f6 cuts Black's rook on g6 off from the queen side. This suggests that White is advised to switch his rooks to the queen side. |
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| Apr-17-12 | | Troller: I once read a GM calling Tregubov the "chopping block". It seems Moro is happy to wield the axe in the endgame here, having failed to close the deal vs Caruana earlier in the tournament. |
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| Apr-17-12 | | rilkefan: Stockfish agrees with 27...f6, and white's subsequent play, thinking he's up something like a pawn. It hates 29...Qb7, thinking white is up two pawns afterwards. It says 31.Qf3 maintaining tension was just winning: +5 at a depth of 24. Black's queen is embarrassed, I think, and he's almost in Zugzwang. 31...Nd8, the favored move, is met by 32.Ne7+. 31...Rg5 avoiding this is met by just 32.d7; if 32...Bxa3 then 33.d8=Q+ Nxd8 34.Nh6+ is crushing because of the weakness of the black kside, in particular f6. Basically black can't find moves that hold up the d pawn, don't drop the pinned rook, and prevent white's heavy pieces from mating him. After Qd5 instead of Qf3 the position is pretty equal. The overly defensive 33.Rd2 (instead of Rc5 threatening Rc8) left black with an advantage that increased over the next moves. I'm guessing both players had already been in Zeitnot for a while. 31.Qf3 might make a nice late-week or weekend puzzle, depending on how much one was expected to see. |
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Apr-17-12
| | Ulhumbrus: <rilkefan> In the sequence you have given I suggest giving two exclamation marks to the zwischenzug 34 Nh6+!! |
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| Apr-18-12 | | rilkefan: On the one hand, it's a terrific move; on the other hand, the patzer move 34.Rxd8+ is also very strong with best play after Kf7 (box) Qxa3, e.g., Kg6 Qd3. |
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Apr-19-12
 | | Honza Cervenka: I guess that 61.Ke5 did not happen and that white just resigned here, which was followed by putting of the white King on e5 (and black on d4) on the sign of black's win. |
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| Apr-21-12 | | rilkefan: Is the custom that if 1-0 the white king goes on e4 and the black king on d5 (or perhaps v.v.)? |
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| Apr-23-12 | | Troller: <rilkefan>
White win: White king to e4
Black win: Black king to e5
Draw: Both of the above.
All other pieces on starting squares.
So 61.Ke5 was probably the Black king being put on e5, but as it was White's move, the pgn got corrupted. |
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| Apr-28-12 | | rilkefan: Thanks for the explanation. |
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