|Nov-17-14|| ||Phony Benoni: "I must be in the back row!"
If Black gets stubborn with <26.Qxe8+ Ng8 27.Qxg8+ Kxg8 28.Rd8# does the trick.
|Nov-17-14|| ||lost in space: I love Mondays!
26. Qxe8+ Nxe8
(26...Ng8 27. Qxg8+ Kxg8 28. Rd8#)
|Nov-17-14|| ||thegoodanarchist: Why don't the 2325-rated players ever do this against me????|
|Nov-17-14|| ||M.Hassan: 26.Qxe8+ Nxe8
One of the most elaborate Queen sacs that i have seen.
|Nov-17-14|| ||agb2002: White has a rook, a bishop and a pawn for two knights.|
Black's only threat is ... Qxb2 since the white queen is untouchable: 26... Rxe7 27.Rd8+ Re8 (27... Ne8 28.Rf8#) 28.Rxe8+ Nxe8 29.Rf8#.
This suggests 26.Qxe8+ Nxe8 27.Rf8#.
|Nov-17-14|| ||Infohunter: <agb2002> In your line Black could make things tougher with 27...Ng8, as that would necessitate 28.Rxg8+; after 28...Kxg8 29.Bd5+ Black would have either 29...Rf7 or 29...Nf7. But of course, since it is White's move he can go ahead and take the Rook for the mating combination.|
|Nov-17-14|| ||patzer2: Black's in trouble early in this game. I like 10...0-0 = as an improvement to try and keep it level.|
|Nov-17-14|| ||morfishine: 26.Qxe8+ Nxe8 27.Rf8 mate
|Nov-17-14|| ||Swedish Logician: The vulnerability of Black's back row, and f8 especially, made me recall Reti vs Bogoljubov, 1924 .|
|Nov-17-14|| ||Oxspawn: I thought I was taking a long time to find this and even now I am not sure I have the ‘answer’. At first glance it appears that the one thing white must not do is to move the rook on f1 but the rook can deliver mate in the following…. |
26. Qxe8+ Nxe8
But what if
26. Qxe8 Ng8
Black can delay by sacrificing the queen in a number of ways but I don’t think can stop
28 (or later). Qxg8#
This seems less obvious than usual for a Monday (and all the better for that).
|Nov-17-14|| ||Oxspawn: I missed the best continuation after 26......Ng8. Must try harder even on a Monday.|
|Nov-17-14|| ||Cheapo by the Dozen: Less than 5 seconds to solve for those of us who have read Bobby Fischer Teaches Chess. :)|
|Nov-17-14|| ||Cheapo by the Dozen: Well, I wasn't thinking of ... Ng8 when I posted that. On the other hand, in the case of ... Ng8, Black is down a ridiculous amount of material even before he is swiftly checkmated.|
|Nov-17-14|| ||zb2cr: 26. Qxe8+ does the trick. Black can lose in one move with 26. ... Nxe8; 27. Rf8#. Or, he can lose somewhat less swiftly by 26. ,,, Ng8; 27. Qxg8+, Kxg8; 28. Rd8#.|
|Nov-17-14|| ||Penguincw: I saw this solution in a heartbeat, but if black plays 26...Ng8, I might have to think a bit.|
|Nov-17-14|| ||Once: Today's POTD is a delightful little British comedy entitled "Carry on up the e file".|
Here's the position one move earlier:
click for larger view
White's last move was 25. Qe7. This is a sort of delayed queen fork. The white queen threatens the Rf8 - that's one prong of the fork.
Incidentally, that's a lovely word. Prong. It's a Kenneth Williams word that cries out for a double entendre. I'll have to weave that word into at least one conversation today.
The second prong (ha! done it already!) is an x-ray threat along the e file. If black saves his rook with, say 25...Rg8, white wins with the vicious 26. Rde1
click for larger view
The black queen and Ne5 are being squished by white queen and Re1. Ooh, matron.
I think that's why black played the losing 25...Re8
click for larger view
He thinks to shore up the weak pieces along the e file with an x-ray of his own. From e8 the rook seems to protect the Ne5 and Rde1 doesn't work any more.
Unfortunately, white defends against one e file attack, but leaves himself open to another. After 25...Re8 26. Qxe8! Nxe8, we get to here:
click for larger view
We have the comical situation of black taking full control of the e file, but being totally unable to stop Rf8#.
If we exclude the king, in this little episode seven of the eight major pieces either visited the e file or threatened to do so.
Now that's funny.
|Nov-17-14|| ||gawain: This is particularly pretty because (as pointed out by <Phony Benoni>) there is a nice little mate even if Black tries to be stubborn.|
|Nov-17-14|| ||dfcx: Very easy? Monday with a variation.
There are two responses for black, both lead to mate.
26...Nxe8 27. Rf8#
|Nov-17-14|| ||Bubo bubo: Black is already down the exchange and a pawn, but above all he has neglected back rank safety, allowing White to play 26.Qxe8+!, as 26...Nxe8 fails to 27.Rf8#.|
Black can prevent mate only by playing 26...Ng8 27.Rd8 Qc4, but now 28.Qxg8+ Qxg8 29.Rf8 wins the queen gratis due to the still intact back rank threat, leaving Black down two rooks and a pawn.
EDIT: Points deduction for me today, as I missed 27.Qxg8+ Kxg8 28.Rd8# :-(
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|Nov-17-14|| ||kevin86: two things must be done to win: remove the black rook sentry along the back row and get the knight out of the way- so the rook can mate at f8.|
The queen sac at e8 does both!
The Monday queen sac is back!
|Nov-17-14|| ||kevin86: Black CAN interpose at g8, but the SECOND queen sac is followed by Rd8#|
|Nov-17-14|| ||Longview: Well after watching 122 moves of Carlson-Anand Game 7 I am glad to see a position I understand. It is a shame their game did not last at least 2 moves longer or they would have beaten the record for the most moves played in a World Championship Match Game.|
At least here the Queen is acting purposefully to remove by capture and distraction the last obstruction to her rook reaching the 8th rank of the f file and trading the black king behind his pawns. I see no way Black can extricate himself from lost material though 25....h6 would give him an escape square or 25....Rg8 met by 26. Be5 I suppose might prolong his and the rook's life a bit but it seems White has the upper hand completely.