Morecoin Freeman
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December 14, 2015, 09:57:34 PM |
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We have to play that:
Bxc5+: 7 votes (mammut, galdur, hermesesus, XMRpromotions, Rolf Uhlhorn, languagehasmeaning, Morecoin Freeman)
Welcome Rolf Uhlhorn! Good that you join us.
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Ask the stranger he knows who you really are.
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languagehasmeaning
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December 14, 2015, 10:03:43 PM |
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We have to play that:
Bxc5+: 7 votes (mammut, galdur, hermesesus, XMRpromotions, Rolf Uhlhorn, languagehasmeaning, Morecoin Freeman)
Welcome Rolf Uhlhorn! Good that you join us.
Yes! It is good to see more players here.
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letsplayagame (OP)
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December 14, 2015, 10:26:12 PM Last edit: December 14, 2015, 11:02:46 PM by letsplayagame |
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I did not create this problem. It is from a famous game that occurred many years ago. Solve it and remember the pattern. White to move: ![](https://ip.bitcointalk.org/?u=http%3A%2F%2Fi63.tinypic.com%2Fn14bj4.jpg&t=665&c=qfJezp2gm6WYow) Lasker vs Bauer Amsterdam, 1889
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letsplayagame (OP)
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December 14, 2015, 11:01:27 PM |
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In most rook endings active defense is the best option. Black to move and draw: ![](https://ip.bitcointalk.org/?u=http%3A%2F%2Fi63.tinypic.com%2F29pt6x0.jpg&t=665&c=5n8vflWEUHZ9Cg) Caruana vs Anand London Chess Classic, 2015
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Chess, Bitcoin, Privacy and Freedom Make BTC Donations via XMR.TO or Shapeshift XMR: 47nMGDMQxEB8CWpWT7QgBLDmTSxgjm9831dVeu24ebCeH8gNPG9RvZAYoPxW2JniKjeq5LXZafwdPWH7AmX2NVji3yYKy76
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jjacob
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December 14, 2015, 11:08:48 PM |
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My vote for Bxc5 as well Bxc5+: 8 votes (mammut, galdur, hermesesus, XMRpromotions, Rolf Uhlhorn, languagehasmeaning, Morecoin Freeman, jjacob)
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boolberry
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December 15, 2015, 12:05:50 AM |
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My vote for Bxc5 as well Bxc5+: 8 votes (mammut, galdur, hermesesus, XMRpromotions, Rolf Uhlhorn, languagehasmeaning, Morecoin Freeman, jjacob)
Bxc5+: 9 votes (mammut, galdur, hermesesus, XMRpromotions, Rolf Uhlhorn, languagehasmeaning, Morecoin Freeman, jjacob, boolberry)
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boolberry
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December 15, 2015, 12:07:25 AM |
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Lasker vs Bauer Amsterdam, 1889
I have seen this game before. Good problem! In most rook endings active defense is the best option.
Based on your hint Ke6 seems likely to be the first move, but I am still trying to figure out the various possibilities to follow.
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tifozi
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December 15, 2015, 01:58:00 AM Last edit: December 15, 2015, 02:47:33 AM by tifozi |
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I did not create this problem. It is from a famous game that occurred many years ago. Solve it and remember the pattern. White to move: ![](https://ip.bitcointalk.org/?u=http%3A%2F%2Fi63.tinypic.com%2Fn14bj4.jpg&t=665&c=qfJezp2gm6WYow) Lasker vs Bauer Amsterdam, 1889 It's funny how when someone poses a problem with "Black/White to play and win" and all sorts of sacrifices start flying in the head (those are the solutions 99% of the time). It just never happens for us mortals during regular games ![Tongue](https://bitcointalk.org/Smileys/default/tongue.gif) 1.Bxh7+ Kxh7 2.Qxh5+ Kg8 3.Bxg7! Kxg7 4.Qg4+ Kh7 5. Rf3 And Black loses queen in defense of the checkmate threat with Rh3
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languagehasmeaning
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December 15, 2015, 02:31:13 AM Last edit: December 15, 2015, 02:54:46 AM by languagehasmeaning |
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It's funny how when someone poses a problem with "Black/White to play and win" and all sorts of sacrifices start flying in the head (those are the solutions 99% of the time). It just never happens for us mortals during regular games ![Tongue](https://bitcointalk.org/Smileys/default/tongue.gif) Bxh7+ 2. Kxh7 Qxh5+ 3. Kg8 Bxg7! 4. Kxg7 Qg4+ 5. Kh8 Rf3 And Black loses queen in defense of the checkmate threat with Rh3 Unfortunately nobody tells us in regular games when we have a winning combination available:( You might want to slightly revise your answer above as Kh7 (not Kh8) is required to be able to sacrifice the queen on h6 (and stop checkmate) after Rf3 and e5. 1.Bxh7+ Kxh7 2.Qxh5+ Kg8 3.Bxg7! Kxg7 4.Qg4+ Kh8 5.Rf3 e5 6.Rh3+ Bh4 7.Rxh4+ Qh6 8.Rxh6++ 1.Bxh7+ Kxh7 2.Qxh5+ Kg8 3.Bxg7! Kxg7 4.Qg4+ Kh7 5.Rf3 e5 6.Rh3+ Qh6 7.Rxh6+ Kxh6 8.Qd7
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letsplayagame (OP)
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December 15, 2015, 01:09:58 PM Last edit: December 18, 2015, 07:27:54 PM by letsplayagame |
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Your move bitcointalk. You have the black pieces The current position is updated below Game 2 (letsplayagame vs bitcointalk): 1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Re1 b5 7.Bb3 O-O 8.c3 d5 9.exd5 Nxd5 10.Nxe5 Nxe5 11.Rxe5 c6 12.d4 Bd6 13.Re1 Qh4 14.g3 Qh3 15.Re4 g5 16.Qf1 Qh5 17.f3 Bf5 18.a4 b4 19.c4 Nf6 20.Re1 Rfe8 21.Be3 c5 22.Nd2 Rxe3 23.Rxe3 cxd4 24.Ree1 d3 25.c5 Bxc5+ 26.Kh1 ![](https://ip.bitcointalk.org/?u=http%3A%2F%2Fi68.tinypic.com%2F2usei5e.jpg&t=665&c=2o6RDXx4hgqxkw)
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Rolf Uhlhorn
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December 15, 2015, 02:05:49 PM |
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g4
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tifozi
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December 15, 2015, 02:24:30 PM |
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g4
27. Re5 will be too strong if we go with g4. White has the following potential attacks with move 27, all of them with strong follow ups. 27. g4 27. Re5 27. Bxf7 sacrifice
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Rolf Uhlhorn
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December 15, 2015, 03:59:43 PM |
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if:
27. Re5 - gxf3 28. Rxc5 - Ne4! and look what happens ...
There are several options, but White threatens to become active, I think we must act.
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XMRpromotions
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December 15, 2015, 04:11:02 PM |
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g4
27. Re5 will be too strong if we go with g4. White has the following potential attacks with move 27, all of them with strong follow ups. 27. g4 27. Re5 27. Bxf7 sacrifice Tifozi do you have another move to suggest? 1 vote g4 (Rolf Uhlhorn) 1 vote Rd8 (XMRpromotions)
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funnyman21
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December 15, 2015, 04:17:18 PM |
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1 vote g4 (Rolf Uhlhorn) 1 vote Rd8 (XMRpromotions)
if: 27. Re5 - gxf3 28. Rxc5 - Ne4! and look what happens ... There are several options, but White threatens to become active, I think we must act.
2 votes g4 (Rolf Uhlhorn, funnyman21) 1 vote Rd8 (XMRpromotions)
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Rolf Uhlhorn
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December 15, 2015, 04:22:34 PM |
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The problem is, if we go for the weak b2 square for example, then our Queen is not active. We need our Queen into the play. With our Queen active, the weak b2 square is still there. Then we have queenside an kingside attack possibilities.
If we play 26. ... - Bd4, white also has options. Bd4 doesn't go away. And for the f7 square, even not defending it can be an option, with Kh8.
So, either we act, or with for example Bg6, Rc/d8 or Bd4 we give white a chance to become active. I think all our options are still there after g4, but now we also have direct attack-option.
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Rolf Uhlhorn
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December 15, 2015, 04:29:50 PM |
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I forgot to write: the e4 square is important for white's defense; with g4 we can do something about that.
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galdur
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December 15, 2015, 05:04:26 PM |
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2 votes g4 (Rolf Uhlhorn, funnyman21) 2 votes Rd8 (XMRpromotions, galdur)
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Hueristic
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Doomed to see the future and unable to prevent it
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December 15, 2015, 05:26:53 PM |
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2 votes g4 (Rolf Uhlhorn, funnyman21) 2 votes Rd8 (XMRpromotions, galdur)
won't he push g4 and fork us?
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“Bad men need nothing more to compass their ends, than that good men should look on and do nothing.”
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tifozi
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December 15, 2015, 05:31:56 PM Last edit: December 15, 2015, 05:43:00 PM by tifozi |
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if:
27. Re5 - gxf3 28. Rxc5 - Ne4! and look what happens ...
There are several options, but White threatens to become active, I think we must act.
Not sure why 28 Ne4 is a good move? White will be up a Rook for a pawn and cancels any threat with 29. Nxe4 I'm sorry g4 is game over in 2-3 moves. @XMRPromotions, no move yet, still thinking how white will attack at the moment. 2 votes g4 (Rolf Uhlhorn, funnyman21) 2 votes Rd8 (XMRpromotions, galdur)
won't he push g4 and fork us? Agreed. I think we are better off retracting the queen or Bf as our next move while defending Bxf7+ possibility
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