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Later Kibitzing> |
Dec-16-14
 | | An Englishman: Good Evening: I also liked the sheer megalomania of White's central & King side pawn storm. |
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| Dec-16-14 | | morfishine: First, not 39.Rxg7?? due to 39...Rxa1!
Now, if you are thinking materially, like I was, and not pattern or positionally, you may get this: <39.Bxg7+> forces the win: 39...Rxg7 forced <40.Rxg7> (overlooking the mate starting with 40.Qd8+) 41...Kxg7 again forced or else Black is down a rook
<41.Qe7+> and Black may as well resign since 41...Kg8/h8 loses the Queen to Rd8+ and then the hanging rook on <a2> is eventually snared; and 41...Kg6/h6 leads to mate after 42.Rd6+ ***** |
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| Dec-16-14 | | M.Hassan: "Easy"
White to play 39.?
White has a Bishop for two pawns.
39.Bxg7+ Rxg7
40.Qd8+ Rg8
41.Rxg8#
OR
40...........Qxd8
41.Rxd8+ Rg8
42.R(any)xg8# |
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Dec-16-14
 | | Bubo bubo: Once again, a back rank motif: 39.Bxg7+ Rxg7 40.Qd8+ with mate after either 40...Qxd8 41.Rxd8+ Rg8 42.Rxg8# or 40...Rg8 41.Rxg8#. |
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Dec-16-14
 | | Once: Fritzie points out an earlier win for white. After 36...fxg5 ...
click for larger view37. Bxg7+ is apparently mate in 13.
As to the puzzle itself, it's a weak back rank. Deflect a defender from the back rank, invade with the queen, mate on g8. It's a Christmas cracker of a puzzle. The opening is like meeting an old girlfriend again after many years. The grand prix attack was my first defence against the Sicilian. The idea is very simple. With 1...c5, black has weakened his queenside so will almost certainly want to castle kingside. White's crude plan is to play f4 and, if allowed, f5. Then channel pieces into the kingside and deliver mate. The slightly unusual thing about today's game is that the f4 pawn never makes another step. |
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| Dec-16-14 | | TheaN: Tuesday 16 December 2014 <39.?> For a split second I missed black was a bishop down, but it is also the moment you see the white bishop and the solution to the puzzle. When capturing on a2, black forgot his king safety, after <39.Bxg7+ Rxg7 40.Qd8+ Qxd8 (Rg8 41.Rxg8#) 41.Rxd8+ Rg8 42.Rxg8# 1-0> which rook on the last move doesn't matter so I didn't specify it. The position before 38....Rxa2 is interesting. What does black do? Moving the h-pawn is pointless due to Qh6#, moving the g8 rook (not to d8) will lead to mate with 39.Bxg7+ Kg8 40.Bh6+ Kf7 41.Rg7+ Ke8 42.Qe7#. 38....Rcc8 looks passive, and white can try moves like Qh6!?. In fact, black should probably opt for 38....Qa7+! (has the same scope as the a1-bishop) which forces white to interpose, as 39.Kh1 Qa8+ does not do much instead. |
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| Dec-16-14 | | CHESSTTCAMPS: Black has two pawns for the bishop and would like to play b3-b2, or perhaps 39...Rxa1 defending. Regardless, white can now force mate with 39.Bxg7+! Rxg7 40.Qd8+ Qxd8 (...Rg8 41.Rxg8#) 41.Rxd8+ Rg8 42.R(either)xg8#. |
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Dec-16-14
| | patzer2: Took me a while to see the weak back rank mate theme and the mate-in-four in today's Tuesday puzzle with 39.Bxg7+! Maybe that's because with only two pawns on the back rank, I wasn't initially looking for back rank mate threats. <Once: ...37. Bxg7+ is apparently mate in 13> Fritz 12 gives 37. Bxg7+! as mate-in-ten. Eliminate a few computer sacrifices to delay mate, and it's mate-in-eight after 37. Bxg7+!! Kg8 (37... Kxg7 38. Rxg5+ Kf7 39. Rf5+ Kg8 40. Qe6+ Kh8 41. Qe5+ Kg8 42. Rg5+ Kf7 43. Rg7#) 38. Qe6+ Rf7 (38... Kxg7 39. Rxg5+ Kh8 40. Qe5+ Rf6 41. Qxf6#) 39. fxg5! Rcc7 (39... Qa7+ 40. Bd4 Qe7 41. Rd8+ Qxd8 42. Qxf7#) 40. Rxf7 Rxf7 41. Rd7 Qf8 42. Bxf8 Kh8 43. Qxf7 h5 44. Qg7#. |
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Dec-16-14
| | patzer2: Hard to say where to look for improvement for Black in this game. In the opening, instead of 3...e6, which is a perfectly fine move, I slightly prefer 3...g6 (most popular move in the OE database) as in Black's win in D Graham vs Y Zhou, 2014. Also in the opening, instead of 4...a6 an interesting alternative is 4...Nge7 as in Black's win in M C Pit-Rada vs R Skytte, 2014. In the actual game, Fritz indicates Black can improve with 23...h6 = to  or 25...e5 = to . After 25...exd5 (better is 25...e5! =) 26. Nf5!  White's initiative is difficult to stop. Fritz indicates the winning move for White is 28. exd5!  . |
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| Dec-16-14 | | Sally Simpson: Fits the bill for a Monday/Tuesday.
First, as always, look at the checks.
There is only one. Anymore after that, Qf8+ is stupid. Qd8+....solved. Easy-peasy.
The hard bit, the very hard bit, the very very hard bit is getting into positions like the one above so you can play the easy-peasy checks and mate. (did I mention how hard it is to set these up in your own games?) Good Game. |
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Dec-16-14
 | | Penguincw: (facepalm) I should've spent more time on this puzzle, as 39.Rxg7 is not the answer. |
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| Dec-16-14 | | zb2cr: I was all set to play 39. Rxg7, but then I noticed the sly defense 39. ... Rxa1!
SO I decided to try 39. Bxg7+, Rxg7; 40. Qd8+, Qxd8; 41. Rxd8+, Rg8; 42. Rgxg8#. |
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| Dec-16-14 | | JG27Pyth: Sure, it's a Tuesday puzzle -- but there's a Sunday pun in there somewhere. |
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| Dec-16-14 | | Chess Dad: 39. Bxg7+ Rxg7 40. Qd8+ Qxd8 41. Rxd8+ Rg8 42. Rxg8# (either rook) |
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| Dec-16-14 | | varishnakov: Black threatens mate so forcing moves are called for. 39.BxP+ RxB 40.Q-Q8+ and if 40...R-N1 41.RxR mate and if 40...QxQ 41.RxQ+ R-N1 42.RxR mate |
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| Dec-16-14 | | varishnakov: <Black threatens mate so forcing moves are called for.> Nevermind, black doesn't threaten mate. I missed the white rook holding the square. |
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| Dec-16-14 | | RookFile: I like this, because it has a little trap for white to avoid. |
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Dec-16-14
 | | kevin86: A forced mate in four! The x-ray attack on g8 by the white rook is paramount |
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Dec-16-14
 | | Longview: Amazing, I saw this one with really no trouble at all. My initial "gestalt" of the position said it had an easy finish for White and the problem was to find the first move forcing the others to follow. Start with the check and pawn capture that opens the g file is in actuality a removal of the guard to the back rank. The rest is seeing the forcing calculation through. Well explained all. I do like that the discussion involves how to improve the game for both players<patzer2> and names for the attack<Once>. This is very helpful. I must admit I missed seeing any trap<Rookfile> and unless there is something in the last name of the Black player, I am also too dull to recognize the pun <JG27Pyth>. |
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| Dec-16-14 | | BOSTER: < JG27Pyth:but there's a pun in there somethere>.
Certainly, she knows this better that <bra-is-fit>. |
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| Dec-16-14 | | ragtag: What's wrong with 39.Qh6? |
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| Dec-16-14 | | Chichiboy: What about 28....Re8 instead of Rc7. |
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| Dec-16-14 | | morfishine: <ragtag> If 39.Qh6?? Black wins with 39...Rxa1 and Black is two pawns up with the White Queen en prise |
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Dec-16-14
| | patzer2: If 28...Re8, then White wins after 29. Ne6! Qd7 30. Nexg7 . |
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| Dec-16-14 | | dfcx: white to move. White is already ahead in material, also have a mate in 4 starting with
39.Bxg7+ Rxg7 40.Qd8+ Qxd8 (Rg8 41. Rxg8#) 41. Rxd8+ Rg8 42. Rxg8# 39.Qh6? allows black to draw with perpetual checks
39...Qa7+ 40. Kh1 Qa8+ 41. Kg1 ...
If white plays 40. Bd4? Qxd4+!followed by gxh6. |
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Kibitzing
sac: 39.Bxg7+