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| Jan-25-10 | | cyclon: 51.RD7 wins Queen (if f.e. -Qxd7, then 52.Qd  ). |
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| Jan-25-10 | | Stoned Knight: too easy even for a monday |
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| Jan-25-10 | | A Karpov Fan: qd3+ also wins queen for rook |
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| Jan-25-10 | | gropek: I finally spotted 51.Rd7, but i kept looking for several minutes for a sucessfuly king hunting... But, always frustrated by black queen, that could block my attacks and exchange queens, i started looking again other options, and then i finally saw the pin followed by a skewer. |
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Jan-25-10
 | | chrisowen: Rd7..very fluid play in the end from Wade, good temperament. For humor he got choleric opening up the kingside then it was a melancholic ponder during the middle game accessing the dfile. Black is sanguine time will allow him to check the king whilst white remains phlegmatic. |
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| Jan-25-10 | | Patriot: <<A Karpov Fan>: qd3+ also wins queen for rook> How? |
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Jan-25-10
 | | kevin86: First comes the pin,then comes the skewer. Unusual for Monday in that the queen is WON rather than sacrificed |
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| Jan-25-10 | | YouRang: A classic decoy: Sac the rook to set up a queen-winning skewer. |
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| Jan-25-10 | | VincentL: 51. Rd7 will win queen for rook.
51....Qxd7 52. Qd3+ followed by 53. Qxd7 |
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Jan-25-10
 | | Domdaniel: <Thean> -- < it does not fit a Monday puzzle to do a King hunt without a sac>
This kind of thing continues to nag at me. I've no doubt it's very good *life* practice -- looking round the edges of the problem, thinking laterally, taking the whole context into account, etc -- but it seems counter-productive in terms of a chess position. Since these are actual game positions, not composed problems, then ideally we shouldn't even know if there's a win -- never mind knowing that the win will start with a particular type of tactical flourish. I try to 'forget' what day of the week it is, with limited success. |
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Jan-25-10
| | Domdaniel: Wade vs R Sanguineti, 1958 ... Wading through Blood? |
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Jan-25-10
 | | Gypsy: The concluding combo is forced from <48.b4+...>. Finding the moves 50 and 51 from there would have given a bit bigger challenge. |
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Jan-25-10
| | Domdaniel: <Gypsy> Very true. The whole line is totally forced, but seeing Rd7 four or five moves in advance is a challenge. |
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| Jan-25-10 | | BishopofBlunder: <Domdaniel: Wade vs R Sanguineti, 1958 ... Wading through Blood?> Nice... |
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| Jan-25-10 | | David2009: Nice to see a Bob Wade win (Wade vs R Sanguineti, 1958). 51 Rd7 sets up a winning skewer. |
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| Jan-25-10 | | Patriot: <Domdaniel> With regard to your comment on <TheaN>'s comment and if I'm understanding you correctly, I agree that thinking "It's a Monday problem so therefore look for a sacrifice" is not really productive if you are solving puzzles as a means of improving OTB. As much as I try to emulate an OTB thought process when solving puzzles, there are huge differences. 1) There is no time limit on puzzles, unless you artificially set one (as <TheaN> does) 2) OTB you have to determine whether a tactic even exists, whereas in a puzzle you KNOW something is there. 3) OTB, even if you think a combination is there you have to determine within a reasonable amount of time whether it's feasible to pursue it. For example if you're winning and you only have 5 mins remaining, it's likely that going into a complicated line (though best according to Rybka) is not the best choice for you--playing for a simple win is better. However if the position is equal or worse, then playing a speculative move is good practice even if you can't calculate to the end. 4) OTB, just because it's Monday it doesn't mean you should look for a queen sac. It just doesn't work that way in practice. Similarly, just because it is Sunday it doesn't mean you should drill for crazy sacrifices for 20 minutes thinking something "might" be there. 5) Puzzles are always one-sided in that they show how combinations can be used against the other player, when in fact they are most often used to make sure the move you're considering is safe. So if you are considering whether candidate 'A' is better than 'B', you must first make sure that your opponent can't spring a combination on you with either candidate that you can't refute. I'm sure there are more items you can put on the list that we both agree on. But even as I try, if this same position were presented as a Sunday puzzle I would probably say "Rd7 wins, but since this is a Sunday puzzle...what more am I missing?" |
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| Jan-25-10 | | TheBish: Wade vs R Sanguineti, 1958 White to play (51.?) "Very Easy"
51. Rd7! Qxd7 52. Qd2+ (or Qd3+, Qd1+) wins the queen for a rook. This is maybe my favorite tactic, and I found it in about half a second! You can call it a pin followed by a skewer (or x-ray), but maybe there's a better, more exact name. One thing that comes to mind is "separating the queen from her king, then using the king to get to her", but that's a little wordy and will never catch on! |
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| Jan-25-10 | | sfm: As far as I can see it's a forced win all the way back from 35.Qe6+, as black has nothing better than what he plays. |
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| Jan-25-10 | | falso contacto: let me post a better example of sanguineti's skills:
R Sanguineti vs Fischer, 1959 |
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| Jan-25-10 | | turbo231: My first 2 second puzzle, normally it takes me several minutes (or more). I must be getting better! <Stoned Knight: too easy for even a Monday> That hurts. |
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| Jan-25-10 | | David2009: <sfm: As far as I can see it's a forced win all the way back from 35.Qe6+, as black has nothing better than what he plays.>
This is a perceptive and interesting comment and is true up to a point, except that White (and so Black) was wrong to
repeat moves. For example 40 Qd4+ allowed 40...Qc5! and it is suddenly unclear (e.g. 41 b4 allows Re2+ 42 Kb3 Qxd4 43 Rxd4 c5!).
Also Black could have played 39...Rd8 rather than ...Re8 since after 40 Rxd8 Qxd8 41 Qf7+? Kb6 42 Qxh7 Black has Qd4! and
either a perpetual check or regain of one or two Pawns. From move 42 on, the win is indeed forced. Black could have played 47...Rd8 (instead of 47...Qd8) which gives White more
chances to go wrong: e.g. 48 Qxh7? is met by 48...Qd6 49.Qe7 Qxe7 50.Rxe7 Rh8 51.Re2 Kd4 52.Kd2 Rb8 53.b3 Rd8
and the Rook ending is difficult to win. Even worse is the line 48.b4+ Kc4 49.Qe6+ Kd4 50.Qxc6 Rc8 51.Rd7+ Ke3 52.Rc7 Rxc7 53.Qxc7 Qxb4
54.Qc3+ Qxc3+ 55.Kxc3 
click for larger view "and wins" only for Black to play ...g5! Queening first and turning the tables. [I fell for this one hook line and sinker.] There is however a forced win after 47...Rd8 
click for larger view and this makes a good problem. On-line link to the Crafty chess computer to play the position at move 42:
http://www.chessvideos.tv/endgame-t...
You are white, drag and drop the move you want to make. Enjoy finding the win! If you follow the game line, Crafty
will play 47...Rd8 rather than 47...Re8, so you can test your solution out. |
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| Jan-25-10 | | WhiteRook48: 51 Rd7 is too easy |
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| Jan-25-10 | | turbo231: <WhiteRook48: 51 Rd7 is too easy> Another dagger to the heart. |
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| Jan-25-10 | | jackpawn: I love Mondays. I'm a tactical genius then, finding solutions in a couple of seconds. |
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| Jan-25-10 | | SufferingBruin: 1000 rating, trying to get better.
<jackpawn> I hear ya. I haven't been able to visit the puzzles in what seems like eons (hope the old gang is still here) and Monday's was always my favorite day. |
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