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| Sep-11-13 | | gofer: Its probably worth losing a knight to set up the discovered check AND stop
black's own discovered check! 27 Ng5+ (27 ... Kh8 28 Nf7+ Kh7 29 f6#) hxg5 28 f6+ ... Errr?? ...
Hold it a second. This is going nowhere fast. Okay back up and try again... I have the move order wrong! Black's discovered check is not as strong as I thought because Ng5 blocks
the check AND is a double check! Deadly stuff.
<27 f6 ...>
27 ... Nxf6 28 Nxf6++ Kh8 29 Qh7#
27 ... Bxf6+ 28 Ng5++ Kg7 29 Qh7+ Kf8 30 Qf7#
27 ... Kg6 28 Nd6+ Kh5 29 Qf5+ Kh4 30 Rf4#
27 ... Nf8 28 Ng5++ Kh8 29 Nf7#
<27 ... Kh8>
<28 fxg7 Rxg7+>
<29 Kh1 ...> 
click for larger viewWhite has so many good options...
30 Nxc5 Nxc5 31 Rf8+ Rg8 32 Bd4#
30 Bd2 Q anywhere 31 Bc3 skewering the rook
30 Bxh6 R anywhere 31 Ng5 threatening mate
Black can resign...
~~~
Black went for quick death... |
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| Sep-11-13 | | morfishine: After <27.f6> White has the double-threat 28.fxg7 winning a piece and 28.Ng5+ winning the game outright Black cannot prevent both
<27...Bxf6+> Black was probably hoping this would save him <28.Ng5+> same piece, same square; only now, the Knight is attacking and defending at the same time <28...Kg7 29.Qh7+ Kf8 30.Qf7#> *****
PM: Apparently also winning is the immediate check <27.Ng5+> due to 27...hxg5 28.f6+ Kh8 29.fxg7+ (also winning is 29.f7 Rf8 30.Bxg5 Bf6 31.Qg6 Bxg5 32.Qh5+ Kg7 33.Qxg5+ Kh7 34.Qh4+ Kg7 35.Rf3 Rxf7 36.Rg3+ Kf8 37.Qh8#)...Kxg7 30.Bd2 Qc7 31.Bc3+ Ne5 (31...e5 32.dxe6+ Nf6 33.Rxf6) 32.Qf5 Kh6 33.Bxe5 ***** |
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| Sep-11-13 | | cocker: I rejected 27 f6 because of the discovered check from the bishop. But 27 Ng5+ will probably win, more slowly. |
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| Sep-11-13 | | Nick46: <estrick: 27. f6 clears the diagonal for the queen check, which combined with a knight check on g5 will force mate. Black's discover check on the g-file is nothing to fear.
This was easier than yesterday.>
One man's meat is another man's poison.
I got yesterday's easily but missed today's, opting for 27. Ng5+ straight off. |
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| Sep-11-13 | | TheaN: Wednesday 11 September 2013
<27.?>
Ah darn, I can join in <sneaky>'s disamay. Typically to understand where the white win comes from but still miss the easiest of defenses because they are actually not true defenses. I missed that 27....Bxf6 is check and went with 28.Nxf6+. In an actual game, one would be allowed to play 28.Ng5+ and still win which kind of stresses the game's rules on this matter. White clears the b1-h7 diagonal by playing <27.f6>. If black would 'pass' or capture with the pawn or knight, white mates with Ng5+ (without Bxf6 I did consider Ng5+, including the smother after Nxf6 with 28.Ng5+ Kh8 29.Qh7+ (Nf7#) Nxh7 30.Nf7#). However, after 27....Bxf6+, 28.Ng5+ is the only way to mate. That g7 was cleared doesn't matter for 28....Kg7 29.Qh7+ Kf8 30.Qf7# 1-0. Another bishop move or 27....h5 lead to the same mate. The rook moves seem to delay mate but this is actually not the case: 27....Rf8 28.Ng5+ Kg8 29.Qh7#, 27....Rh8 28.Ng5+ Kg8 29.f7+ Kf8 30.Ne6#, 27....Ra-e8 28.Ng5+ Kg8 29.f7+ Kf8 (Kh8 30.Qh7#) 30.Ne6#. |
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| Sep-11-13 | | TheaN: Hm just walking out of the check with 27....Kh8 actually 'saves' the game, but this is dead lost after 28.fxg7+ anyway. |
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| Sep-11-13 | | bubuli55: Black piece down!
27. f6 Kh8 < capture of pawn leads to mate > 28. fxg7+ Rxg7+ 29. Kh1 This looks like a home invasion. They send a boy to knock on the door. If no one's home, they send the cavalry. |
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| Sep-11-13 | | Yogi Darwin: Just a quick thanks to Sneaky and others who posted the same mistake I made. N x f6 looked so obvious as long as it is permissible to pretend one's own K is not in check! Maybe someday I'll look at the entire board before making a move. The actual correct move, blocking the check, a discovered check, AND putting the black King in double check is stunning. |
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| Sep-11-13 | | Morttuus: I confess I had the same problem with 28... Nxf6. :-) 27. f6! was obvious, but I have totally overlooked the check! Well, a good lesson for me. An instructive ending, though. |
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| Sep-11-13 | | Abdel Irada: <Phony Benoni: Two checks are better than one!> Ain't that the truth!
Solving this puzzle depends on one feat: seeing that Black's discovered check can be trumped with a double check of our own (<27. f6!, Bxf6†?? 28. Ng5††>), swiftly followed by the big sleep for the black king. After <27. f6!>, Black's most durable defense seems to be 27. ...Kh8, in which case he "only" loses a bishop. This once again proves the theory that the best defense against a double check is not to allow one. ∞ |
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| Sep-11-13 | | Nightsurfer: <gofer> and <cocker>
I have to confess that I did not consider that - great!! - move <27.f6!! ...> ... whereas my idea was <27.Ng5+!?!? ...> too, and at least it looks like as if that would have been a second way of winning ... |
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| Sep-11-13 | | Abdel Irada: <Nightsurfer>: I believe you are correct: 27. Ng5† also appears to win, although it does so rather more slowly than the text. ∞ |
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Sep-11-13
 | | gawain: I was in the 27 Ng5+ crowd, hoping to follow up with f6. But I knew that couldn't be the solution. I have no idea why I did not look longer at 27 f6! |
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| Sep-11-13 | | notyetagm: R Garcia vs E Figueroa, 1963 <Sneaky: ... If that was an actual game, due to touch-move I'd then be forced to move my knight to g3 :-P> In a blitz game I would let you play ♘e4x♗f6++ so I could reply ... ♖g8x♔g1. :-) |
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| Sep-11-13 | | notyetagm: R Garcia vs E Figueroa, 1963 <gawain: I was in the 27 Ng5+ crowd, hoping to follow up with f6. But I knew that couldn't be the solution. I have no idea why I did not look longer at 27 f6!> Yes, 27 f5-f6! <LINE CLEARANCE> vacates the diagonal b1-h7 to create a <DISCOVERY CHAIN> White c2-queen + White e4-knight + Black h7-king. ----
<TACTICAL RULE OF THUMB: FOUR UNITS IN A ROW IS <<<CLEARANCE>>> FOR A DISCOVERY OR PINNING CHAIN>. |
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| Sep-11-13 | | notyetagm: R Garcia vs E Figueroa, 1963 <patzer2: Today's Wednesday solution 27. f6! prepares a discovered double check for mate-in-four> Yes, I particularly like the second move of the tactical sequence, 27 ... ♗g7xf6+ 28 ♘e4-g5++!, meeting a <DISCOVERED CHECK> with a <DOUBLE CHECK>. ----
<<GC: THE DISCOVERER CAN GO ANYWHERE AND DO ANYTHING => BLOCK A CRITICAL LINE> |
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| Sep-11-13 | | notyetagm: R Garcia vs E Figueroa, 1963 <stacase: Double check is always fun.> Game Collection: DOUBLE CHECK: THE DIVE BOMBER OF THE CHESS BOARD 28 Ne4-g5++! 1-0 interposes Black's discovered check on g-file |
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| Sep-11-13 | | notyetagm: R Garcia vs E Figueroa, 1963 Game Collection: DISCOVERER CAN GO ANYWHERE AND DO ANYTHING 28 Ne4-g5++! 1-0 interposes Black's discovered check on g-file |
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| Sep-11-13 | | kevin86: The pawn sac sets up the lethal double check...its components then will mate. |
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Sep-11-13
 | | chrisowen: I peg one for caddy up pawnf6 bad light knight,
cuffed g5 can gained a down graded bishop delve f6,
in bullshin knight each in dipped good be devious soothed fun to flurry knight safety aid g5 ail great harvest back and call look bone in the thorat, incede f6 pawn be bishop evermore knight do g5 ie,
see one f6 king harbour intentions accustom flow again you see queen dig afraid every too ambitious afetch in damage g7 goofed for exchanged knight pawn guffaw now farmed gg bishop king h7 back in h8 or, deem locker c2 a roof top view f6 free feels family, fetch in a rook f8 slide good pawn eddy over suffix femur fessed up eg bind king as h7 each sensed I ment rook fatefuls enough in g8 whence cabled an glibbed 27.f6 accustom makes way for knight and queen clucky again be effects 27...Kh8 drops a beauty piece down so bluffed 27...Bxf6+ bad double, checks from c2 choose a mission fleet of f6 in pocket gaffer c2 screws undone knighte4 a fog reach in across to g5 ie see mating h7. |
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| Sep-11-13 | | M.Hassan: Missed the solution by playing 27.Nxc5 |
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Sep-11-13
 | | Penguincw: I got f6 and Ng5+ mixed up. :| |
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| Sep-11-13 | | dark.horse: Touche! Ng5+ is remarkable. Here is a piece that is attacked 3 times, is the only shield for his king, yet is inviolable and provides the springboard for the counter-attack. The game of Chess amazes again. |
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| Sep-11-13 | | Patriot: 27.f6
27...Nxf6 28.Nxf6++ Kh8 29.Qh7#
27...Bxf6 28.Ng5++ Kg7 29.Qh7+ Kf8 30.Qf7#
27...exf6 doesn't change things either. |
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Sep-11-13
 | | FSR: 27.f6!, threatening both 28.Ng5 double check followed by 29.Qh7# or 29.Nf7#, and simply 28.fxg7 with an extra piece, crushes: 27...Kh8 28.fxg7+ ;
27...Bf8+ 28.Ng5 double check Kh8 29.Qh7#;
27...Bh8+ 28.Ng5 double check and mate;
27...Bxf6+ 28.Ng5+ Kg7 (28...Kh8 29.Qh7#) 29.Qh7+ Kf8 30.Qf7#; 27...gxf6 28.Ng5 double check (or 28.Nxf6 double check Kh8 29.Qh7#) Kh8 29.Qh7# or 29.Nf7#; 27...Nxf6 28.Ng5 double check (or 28.Nxf6 double check Kh8 29.Qh7#) Kh8 and now either (a) 29.Nf7# or (b) 29.Qh7+ Nxh7 30.Nf7#. |
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Kibitzing
sac: 20.Bxg6+