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|Jan-29-08|| ||chessgames.com: A fairly hard Tuesday puzzle. To have solved it, you should have seen the critical variation: 25.Bxh6! exf4 26.Bg7+! (not 26.Bxf8+? Bh4) Kxg7 27.Rh7#|
|Jan-29-08|| ||gilbertblondy: 1.h6 h6 2.h6+ g8 3.h7#|
|Jan-29-08|| ||JohnTal: This is a nice 1-star Monday problem. 25 Bh6..Ng7, 26 Bg7++.. Kg7, 27 Rh7# |
Or 25 Bh6..Bg7, 26 Bg5+
With open g & h files, White has an EZ win.
|Jan-29-08|| ||tjshann: Uh,yeah. I can certainly see the temptation for Bxf8+ This was Tuesday more like Thursday.|
|Jan-29-08|| ||areknames: This certainly was difficult for a Tuesday. Got it after several minutes, the key move is of course the elegant 26.Bg7+!|
|Jan-29-08|| ||Manic: Ahh damn it, I missed that the queen was en prise ><. When reading <CG's> post, I was like 25...exf4 what the hell? Went back to the main page and realised there was a pawn there =(.|
|Jan-29-08|| ||jovack: People, there is no immediate mate
25. Nxh6 Bh4 (and now queen must move or trade off)
26. Qd2 (let's say) Black will most likely interpose with his knight to e7
take the bishop, and white is up a piece
but no mate
This is the same for other variations.
If white snatches the bishop with his queen on 26. Qxh4
White goes into a 2 rook endgame instead, up a piece.
Solution for this puzzle: Win a minor piece, NOT mate.
|Jan-29-08|| ||THE pawn: <Manic> Same here! didn't even notice the black pawn threatening the queen. Sort of makes your decision easier haha! |
Since the theme or pattern of rook + bishop mating a king is fairly common, 26.Bg7 isn't that hard to find.
|Jan-29-08|| ||Abaduba: <People, there is no immediate mate>
On the contrary, after 25. xh6 h4 White can simply take with the Rook 26. xh4. If Black takes the Queen we have the same mate as in the main line with 27. g7+!, and on 26. … xh4 27. xh4 Black has lost a Queen and Bishop for a Rook and still has to face the same mating pattern.|
|Jan-29-08|| ||THE pawn: <jovack> this is true with the best defense, but the puzzle is both, since there is no additionnal text move after Bxh6.|
|Jan-29-08|| ||MostlyAverageJoe: < Abaduba: <People, there is no immediate mate> On the contrary ... If Black takes the Queen we have the same mate as in the main line>|
Wrong. Play it out. There is no black B on f6 blocking the escape.
<jovack> There is a bit more than one minor piece, but you'd need to analyze a couple more moves, and it would go way beyond the scope of the analysis expected on Tuesdays.
I think it is enough to see that untouchable white Q after Bxh6, and one piece gain.
|Jan-29-08|| ||Open Defence: oh no! I fell for the Bxh6 exf4 Bxf8?? trap :(|
|Jan-29-08|| ||weary willy: <jovack: People, there is no immediate mate> ? try 25 Bxh6 Bh4 26 Rxh4 and mate in a very few|
|Jan-29-08|| ||zooter: hmmm....
25.Bxh6 picks up the poor immobile black rook (and also threatens mate) while the defense 25...Nxh6 loses to 26.Qxh6+ Kg8 27.Qh7#
I also did find a nice sacrifice (due to a blunder in my calculations)
25.Bxh6 Nxh6 26.Rxh6!? Kg8 27.Rh8+! Kxh8 28.Qh6+ Kg8 29.Qh7#
Off course, thought the second continuation is a bit useless, I believe it helps one look at visualizing mating patterns...
|Jan-29-08|| ||zooter: Oh crap, i never noticed that black has 25...exf4 when the correct continuation is the killer 26.Bg7++ |
Cannot claim the point as i never noticed the queen was en prise :(
|Jan-29-08|| ||dzechiel: White to move. Material even. "Easy."
At first glance, it seems like pretty much everything wins.
I keep looking at the obvious 25 Bxh6 as a pretty good move. It threatens a nasty discovered check with 26 Bxf8+. Black doesn't have time to capture the bishop with 25...Nxh6 as 26 Qxh6+ leads to mate.
OK, let's try it out:
25 Bxh6 exf4 26 Bg7+! Kxg7 27 Rh7#
The combonation depends on the 26th move with double check, leaving black only one move and that exposes the king to mate.
Black's last move must have been e7-e5. This explains why black didn't capture the bishop on g5 the previous move.
|Jan-29-08|| ||patzer2: It's Tuesday, and today's puzzle solution is 25. Bxh6! which leads to a pretty double check and mate after 25...exf4 26. Bg7+ (double check) 26...Kxg7 27. Rh7#.|
It's not often you see a mate-in-three possibility involving such a picturesque Queen and piece sacrifice. One unique feature of the double check tactic is that the King must either capture one of the checking pieces or flee. Interposition is never an option for the King exposed to double check.
Of course, in this particular combination, there are a few other options:
Black can play 25...Nxh6 and make it a routine mate-in-three after 26. Qxh6+ Kg7 27. Qh7#;
Or make it another pretty double check and mate-in-four after 25...Bg7 26. Bxg7 (double check) Kxg7 27. Rh7+ Kf3 28. Qh4#;
Or make it a more difficult mate-in-eight after 25... Bg5 26. Bxg5+ Nh6 (26...Kg7 27. Rh7#) 27. Rxh6+ Kg8 28. Rh8+ Kg7 (28... Kxh8 29. Qh4+ Kg8 30. Qh7#) 29.
Qg4 Rg8 30. Be7+ Kxh8 31. Qh5+ Kg7 32. Qh7#.
Or try and spoil all the quick mates with 25...Bh4, when it's a clear win after 26. Qxh4 (perhaps the easiest for us humans to see), 26. Rxh4 (<weary willy>'s suggestion), or 26. Qd2 (the strongest move according to my computer), 26. Qg5 (which wins with flair), 26. Qg4 and several other Queen moves.
P.S. Including silly options like 25...a4 26. Bg7+ Kxg7 27. Rh7#, my computer program (Fritz 8) indicates there are at least 23 mating possibilities (fortunately, they all conform to the four patterns discussed here). While 25...Bh6 loses quickly and decisively, it apparently avoids an immediate mate (eight moves or less).
|Jan-29-08|| ||zenpharaohs: Yikes. The right move is obvious:
but then it gets complicated. The only way for black to avoid mate is
25 ... Bh4
Now in order to solve the puzzle you have to know what white plays in response to this. The line seems to be
26 Qd2 Ng7
27 Bg5 Nxf5
28 Bxd8 f6
29 exf5 Kg7
White is up queen and pawn, with initiative and black has no bullets left in the gun.
|Jan-29-08|| ||DaveyL: White can sac the queen with 26. Rxh4 in that line and still win with a Bg5 discovered check; white is miles ahead.|
|Jan-29-08|| ||HeMateMe: I thought it was quite easy. It's one of the first themes you see in tactics books, the discovered double check, give up the queen, and the other two pieces smother the king.|
theres a gazillion puzzles with this theme, and I feel happy to have solved one of the dailies, for a change.
|Jan-29-08|| ||Zorgach: 25.Bh5xh6 Bh4, - obvious moves!
Now it is important descision for White side!
26.Bh6 (less likely) or
26.Qd2 (better move, move the White Queen from direct danger and to keep it from Knight check in the future).
|Jan-29-08|| ||Tactic101: Took a while (a minute or so). Had all the ideas (a mate on h7 with Rh7, a discovered check and a queen sac), but putting it together was harder. Bg7+! is the critical move (not Bxf8+?). Glad I found this one.|
|Jan-29-08|| ||patzer2: <zenpharaohs: Yikes...25 ... Bh4...>|
Well actually, there's more wins here than you can shake a stick at, but the easiest is the simple 26. Qxh4 going up a piece with decisive advantage. It's true 25...Bh4 26. Qd2 is probably the strongest, but you don't have to see that to solve the puzzle. One simple combination I like is the amusing 25...Bh4 26. Qg5 (diagram) decisively putting the Queen enprise.
click for larger view
(Position after 25...Bh4 26. Qg5! )
|Jan-29-08|| ||DarthStapler: Didn't see all the lines|
|Jan-29-08|| ||jovack: A minor piece and a winning position.
People, after bishop h4, the black bishop is gone, and black's king runs away like a slippery fish. I laughed when someone accused me of using a chess program, <us humans>. Qd2 was a logical move for me at quick glance to maintain the pressure. I am past my days of relying on computers solely.
<A fairly hard Tuesday puzzle. To have solved it, you should have seen the critical variation: 25.Bxh6! exf4 26.Bg7+! (not 26.Bxf8+? Bh4) Kxg7 27.Rh7#> Sorry Chessgames.com, you missed the critical variation where black has no more bishop to block his path.
Why are people trying so hard to find a "beautiful and quick" mate when black can narrowly escape (after losing enough material and quality to safely resign)?
All your tactics books have gone to waste if you missed this.
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