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| Feb-25-09 | | agb2002: The position of the white royal family and the black knight invites to play 23... Qd3: A) 24.Bxd3 Nxd3+ followed by 25... Nxf4 with B vs. P. B) 24.Ne3 Qxc2 25.Nxc2 Nd3+ like A).
C) 24.Rc1 Qxc2 25.Rxc2 Nd3+ like A).
D) 24.Qd2 Qf3 with the double threat ... Rxd2 and ... Qxh1. E) 24.Qc1 Qf3
E.1) 25.Rg1 Bxg4 (threatening 26... Qe2#)
E.1.a) 26.Ng3 Nd3+ 27.Bxd3 Rxd3 followed by ... Rfd8  . E.1.b) 26.Bd1 Nd3+ 27.Kd2 Nxc1+ .
E.1.c) 26.Rxg4 Qxg4 .
E.1.d) 26.Qe3 Nd3+ 27.Bxd3 Rxd3 28.Qxf3 Bxf3 29.Nd2 Bh5 followed by ... Rfd8, with a much better endgame. E.2) 25.Rh2 Bxg4 is similar to E.1).
F) 24.Bb1 Qxb1+ 25.Rxb1 (25.Qc1 Qxc1+ 26.Rxc1 Nd3+) Nd3+ like A). G) 24.Bd1 Bxa2 (24... Bc4, threatening 25... Qxf1+ 26.Rxf1 Nd3+, is interesting) 25.Be2 Qc2 26.Qc1 Qxe4 27.Ng3 (27.Rxa2 Nd3+) Qe6 and Black has a considerable advantage. I haven't found any immediate, forced win. Probably I've missed something but this puzzle looks to me more a strategic puzzle (methodic reinforcement of the position, as in line E.1.d) than a tactics one. |
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| Feb-25-09 | | agb2002: I overlooked 24.Bb3 but I think 24... Bxb3 25.axb3 Qc2 (threatening ... Nd3+, ... Nxe4, ... Qxb2, etc.) would win. For example, 26.Ne3 Nd3+ 27.Kf1 Qxb2 . |
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| Feb-25-09 | | A.G. Argent: <MenisfromVenis> <...more like... Friday, Saturday...> Yeah, I was thinking Friday. |
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Feb-25-09
 | | FSR: All I can see is 23...Qd3 24.Qc1! Bxg4! 25.Ng3! and there's no immediate win for Black. |
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Feb-25-09
 | | Domdaniel: Don't ask how he could play such a weak move - this was Mason, after all. He blundered horribly against everyone and was said to have played many games "in a hilarious condition" - a 19th century euphemism for 'drunk'. Yet, when he wasn't pissed or blundering, he could grind down anyone. A strange man. Author of one of the better chess manuals of the time as well. |
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| Feb-25-09 | | JediKush: i was thinking of a different move.. qd3 is amazing but what about Bc4 attacking Knight. followed by Bd3... if white accepts the trade its lost the queen... Bxd3 Nxd3+ forking queen.. Bc4.. any comments? :D |
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| Feb-25-09 | | Once: An odd one today. I couldn't find anything exciting or clear-cut. After a while I settled on 23...Bxg4 on mainly positional grounds (whilst being absolutely convinced that it wasn't going to be the solution). Fritz 11 struggles a little with this one too. It rates 23...Qd3 as -1.44 and 23...Bxg4 as -1.12. |
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| Feb-25-09 | | MiCrooks: This is not only too difficult for a Wednesday, it really isn't a very good puzzle. Now granted they occassionally slip in a ringer on us and throw out a position calling for Bxh7+ where the move loses i.e. an "anti"-puzzle, but this is in between. Qd3 is the best move in the position and it gives Black and advantage, but the only reason the game ends abruptly is that White played the honker Qd2??. After Bd1 the game goes on. Best play gives Black a slight but enduring advantage but no quick win is on the horizon. |
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| Feb-25-09 | | wals: James Mason - Richard Teichmann, Leipzig 1894- 0 1
Analysis by Rybka 3 1-cpu 32-bit: time 5min 14sec 14ply 1. (-1.93): 23...Qd3 24.Bd1 Rfe8 25.f3 Bxg4 26.Be2 Qc2 27.Ng3 Qxb2 28.0-0 Be6 29.Nh5 Qxc3 30.Rac1 Qd4+ 2.  (-1.04): 23...Bxg4 24.Ne3 Qd2+ 25.Kf1 f5 26.exf5 Nd3 27.Bxd3 Qxd3+ 28.Kg1 Bxf5 29.Rd1 Qe4 30.Qxe4 Rxd1+ 31.Nxd1 Bxe4 32.Rh2 Bd5 33.a3 Kf7 34.Ne3 Bf3 35.Rh3 (, 26.02.2009)
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Feb-25-09
| | Domdaniel: Thou Shalt Not Trust the Day of the Week.
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| Feb-25-09 | | SamAtoms1980: I found 23 ... Qd3 after some thought. After checking to make sure I wasn't about to miss some ridiculous zwischenzug, I stuck with it. |
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| Feb-25-09 | | The Rocket: Waaaaaaaaaaaaaaaaaaaay TO HARD for a easy/medium |
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| Feb-25-09 | | SamAtoms1980: <MiCrooks: This is not only too difficult for a Wednesday, it really isn't a very good puzzle. Now granted they occassionally slip in a ringer on us and throw out a position calling for Bxh7+ where the move loses i.e. an "anti"-puzzle, but this is in between. Qd3 is the best move in the position and it gives Black and advantage, but the only reason the game ends abruptly is that White played the honker Qd2??. After Bd1 the game goes on. Best play gives Black a slight but enduring advantage but no quick win is on the horizon.> 23 ... Qd3 24 Bd1 Nxe4, to be followed up with 25 ... Rfe8 and Black is ready to unload on the center files, starting for instance with 26 ... Bc4. What may be now only a "slight but enduring advantage" in about 8-10 moves is going to turn into an A kicking. Black's forces have complete control of the game and White's uncastled King will only be able to hold them off for so long. |
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| Feb-25-09 | | YouRang: I got so wrapped up watching Linares, I almost forgot the daily puzzle. Anyway... After a few moments, I noticed the potential for the knight fork, and so I considered 23...Qd3. It's safe since 24.Bxd3 loses a piece to 24...Nxd4+ & 25...Nxf5. Of course 24...Bxd3 isn't forced, but now white must be concerned about the queen taking the bishop. One way or another, it looks like black at least wins a pawn... |
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| Feb-25-09 | | WhiteRook48: this was hard!! |
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| Feb-25-09 | | ZUGZWANG67: I found 23. ...Qd3 almost immediatly but then, (almost) nothin ! The problem with the attack is that once the WB gets to leave, the BQ must find a way to vacate while threatening something else. But how ? To me, there' s nothing obvious here. Of course, Black can' t answer 24. Bxd3. Nor can he respond 24. Qxc7, because of 24. ...Qxe4+. Okay. Say 24.Bb3 Bxb3 25.axb3 Nxb3, with the threat of 26. ...Nd2. Oops ! Double attack against the WR and d2. So b3 is not available to White here. Say 24.Bd1 Bc4, with the idea of snapping the WN while forcing the WR to recapture (and so to keep the importance of the d3-square). What could be the defense, now ? The Q must keep protecting e4. 25.Qf3 Hm. 25. ...Rd7 26.Qxd3 Nxd3+. And the WK must choose between e2 and d2 and a discovered check follows. But it seems to me that this is a bit complex for a wednesday. And honestly, I did not even consider 24.Qd2.
Peace ! |
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| Feb-25-09 | | johnlspouge: Wednesday (Medium/Easy)
J Mason vs Teichmann, 1894 (23...?) Black to play and win.
Material: Down a P. The White Ke1 has 1 legal move and is caught in the center. Black has a battery Rd8 and Qd7 on the open d-file. The White Bc2 is burdened with preventing …Nd3+, which forks Ke1 and Qf4. With Ra1, it also protects the invasion point d8. The Black Be6 can capture Pg4 to achieve material equality. The Black Rf8 can reload Rd8, but requires activation. The White Qf4, Bc2 and Rh1 are loose. The Black Kg8 is secure. Candidates (23…): Nxe4, Bxg4, f5
Nope. I was on another planet. |
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| Feb-25-09 | | Woody Wood Pusher: Wow I missed a Wednesday, I think I need a new hobby. |
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| Feb-25-09 | | Woody Wood Pusher: This puzzle is a joke for Wednesday, I'm looking for big material gain here, what a waste of time... |
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| Feb-25-09 | | newzild: I usually get Wednesdays pretty fast - but this one took me 12 minutes. The problem is that black's reply isn't forced, and white has to consider several responses. Granted, most of these fail to simple responses, but there's still a bunch of them to consider. The main line I considered was the one actually played in the game. |
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| Feb-25-09 | | muralman: I agree with Woody Wood Pusher |
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| Feb-25-09 | | TheBish: J Mason vs Teichmann, 1894 Black to play (23...?) Medium/Easy (2 stars)
Candidate moves: Bxg4, Nd3+, Qd3
One thing to note are Black's advantages: White is not castled, potential weaknesses around the king, pieces not coordinated. 23...Bxg4?! restores material equality, but at the cost of allowing counterplay with 24. Rg1 or 24. f3 and 25. Rd1. 23...Nd3+ 24. Bxd3 (forced) Qxd3 25. f3 followed by Rh2 and Rd2, and I think White is holding on. Up a pawn, if White can last till the endgame, this is potentially winning for White. 23...Qd3! exploits the weakness on d3. There is no good defense. A) 24. Bxd3? Nxd3+ 25. Ke2 Nxf4+ wins a piece for Black. B) 24. Qd2? Qf3! wins either a rook or queen for a rook. C) 24. Rc1? (or 24. Ne3) Qxc2! 25. Rxc2 (or 25. Nxc2 in the other line) Nd3+, and again Black emerges a piece up. D) 24. Bb3 Bxb3 25. axb3 Qc2! and White has no good answer to the threat of Nd3+, e.g. 26. Rh3 Nd3+ wins the exchange, and 26. Ne3? Nd3+ 27. Kf1 Qxb2 will win the rook, as White must save the queen. E) 24. Bd1 may be best, but then Black can choose between 24...Nxe4, continuing the attack, or 24...Qxc3+ 25. bxc3 Nd3+ 26. Ke2 Nxf4+ 27. Kf3 Nd3, with advantage to Black. |
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| Feb-26-09 | | RandomVisitor: After 15...Be6 White had:
[+0.10] d=20 16.Ne3 Bxe3 17.Qxe3 Qe7 18.O–O f6 19.Rd1 Rfd8 20.Nf1 Nc5 21.b3 a5 22.Ng3 Rxd1 23.Bxd1 b4 24.Be2 Rd8 25.Bb2 bxc3 (2:22.04) 158556kN [+0.03] d=20 16.Ng3 Bb6 17.O–O Qf6 18.Nf5 (2:55.23) 199413kN |
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| Feb-26-09 | | outplayer: <Dom Daniel> Mason's book is not one I should read. |
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| Feb-27-09 | | patzer2: For the Wednesday, Feb 25, 2009 puzzle solution, White plays 23...Qd3! using the threat of a Knight Fork to set up a winning discovered double attack after 24. Qd2 Qf3! (threatening both 25...RxQ and 25...QxR ). |
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