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|May-26-05|| ||psmith: <patzer2> I was looking at 27... Qd7 28. Nc4 dc4 29. d5 ... 29. Qf3 looks better for sure. So now I wonder, what about 27... Qe8 immediately?|
|May-26-05|| ||black knight c6: I think that white's idea with leaving the c - pawn 22 Ke1 would that after 22... Qxc3+ kf1(d1) Qd3+ would be that if the queen stayed off the c-file, then white could capture the knight because Rook can't take because of
Rb8+ with mate to follow.
this doesn't work in two ways:
1) the queen can simply come back to the c-file
2) she can stay inline with the b1 Rook and intermezzo after Rxc6 with Qxb1 check! to stop the mate before simply retaking RxR.
This looks to me like a tactic that needed to be worked on before white can execute it but there may be more calculations to it... anyone see them?
|May-26-05|| ||maxundmoritz: <dzanone> 27...Qd7 28.Nxc4 dxc4 29.Qf3 with the idea 30.Qa8. The resulting attack looks very good for White.|
|May-26-05|| ||iron maiden: This is X-ray week, I guess.|
|May-26-05|| ||crafty: 28. ... ♖xd8 29. ♖xd8+ ♔h7 30. ♖bb8 g5 31. h5 (eval 8.01; depth 14 ply; 1000M nodes)|
|May-26-05|| ||patzer2: <psmith> If <27...Qe8>, White gets the upper hand after 28. Rxc8! Qxc8 29. Nxc4! dxc4 30. Qe7! f5 31. Qd6 Rc7 32. Rb6! Kf7 33. d5 Re7 34. a5 Re8 35. Rxa6 . White's passed pawn and space advantage appear decisive.|
|May-26-05|| ||Furdly: I don't understand why crafty doesn't report this as a forced mate. How does Black save himself?|
|May-26-05|| ||Marius: 28.Qd8+ Rxd8 29.Rxd8+ Kh7 30.R1b8 g5 31.h5 Rg8 32.Rxg8 f6 33.Rgc8 Qd7 34.Rh8+ Kg7 35.Rbg8+ Kf7 36.Rhh7+ Kxg8 37.Rxd7|
|May-26-05|| ||Catfriend: Reminds me of the famous
Alekhine vs Colle, 1925
|May-26-05|| ||halcyonteam: R1b7 should do it? why not?|
|May-26-05|| ||Catfriend: <halcy> 28.R1b7 Qe8 and what next? <Patzer2>'s idea 29.Nxc4 fails to direct 29..Rxb8, so black's safe here. Perhaps in a worse position, but it's surely not a solution.|
|May-26-05|| ||2ndNature: <Marius>
32... f6 33.exf6! and mate in 2.
|May-26-05|| ||ranchogrande: yes must be X-ray week.And a good found by <Catfriend> -thanks!|
|May-26-05|| ||OhioChessFan: <patzer> Yes, I tried the 28. Nxc4 line, with the idea of the 2 rooks chasing the Black Q up and down the c file. Qxc3+ is Black's answer, and the Q can give up the defense of the c8 Rook. Reminded me a little of the draw Kaspy missed against Blue.|
|May-26-05|| ||mgm329: Englishman: interesting--I wasn't aware you were the "teacher" responsible for deciding who gets credit on this "assignment"; obviously, nobody would play 28. Qd8+ unless they did see 31. h5.|
|May-26-05|| ||Marius: <2ndNature >
|May-26-05|| ||fenno: This took some time to solve, but on the other 28. Qd8+ was the only try that looked brutal enough. Then I stopped for a while because somehow I thought the position after 28... Rxd8 29. Rxd8+ Kh7 like this: "What black now do to prevent Rbb8?" The answer is of course: "Nothing, because it is not black's turn." and when I realized that the rest was clear.|
Hmm... That brings to my mind that humans actually use the "null move"-concept on purpose in similar way the best chess programs do. We often think like this: "If the opponent does nothing (=null move) to prevent this move, then..."
|May-26-05|| ||Shokwave: This was pretty easy for me today...first thing I looked for was getting heavy pieces onto that back rank, which meant moving the "capture" square from the queen-protected c8 to somewhere else. Qd8+ jumped right out at me. The rest was just mechanics, checking the line out and seeing if the king could escape.|
|May-26-05|| ||JohnBoy: Indeed, <gidguy, dzanone>, why did black not play 22...Qxc3+? Black can follow up any king move with the aggressive 23...Nxd4. White cannot afford to capture the e6 pawn with 24.Nxd4 Qxd4 25.Rxe6 as black can pick up the b1 rook with check by a double attack. How does white justify the move?|
Maybe just 22...Qxc3+ 23.Kf1 Nxd4 24.Nxd4 Qxd4 25.Kg1, and the white king is sheltered while black is playing a rook down.
|May-26-05|| ||kevin86: Just checking: is the sequel--28...♖xd8 29 ♖xd8+ ♔h7 30 ♖bb8 g5 31 h5 ♖g6 32 ♖h8+ ♔g7 33 ♖bg8# right?|
|May-26-05|| ||Milo: 31...Rg8, Kevin|
|May-26-05|| ||YouRang: Rats. Qd8+ was the first move I looked at, but once again, I dismissed it after failing to see the further threat of Rb8 and h5, etc.|
|May-26-05|| ||farrooj: what's the first thing you try? Sac your queen. nice find by chessgames, two Xrays in a week.|
|May-26-05|| ||kevin86: Milo-black can avoid the mate but must give up a second rook-and soon after,his queen. Thus an easy win for Chandler.|
|May-26-05|| ||midknightblue: Before looking at the answer I will give forth my suggested solution...and risk looking like a fool, if this Queen sac for some reason does not work. 28 Qd8 Rxd8 (or if Kh7 then RxR and win). 29 Rxd8 Kh7 30 Rb8 g5 31 h5 and should be a forced mate to follow, which black can delay but not avoid. I am trying to do this in my head to improve. If my answer makes no sense I apologize.|
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