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Strange name, real hobbies
Strange name, real hobbies
drtimer
16 ( +1 | -1 )
Lasker rule Hi, I keep reading that one shouldn not pin one's opponents queen knight with you bishop before they have castled, a so called Lasker rule. Why not?
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ganstaman
75 ( +1 | -1 )
Do you mean king's knight? If so, I believe it's because of two possible reasons.
1) They haven't committed to castling kingside, so there's potentially not a problem with going all out to break the pin (playing h3 and g4 as white).
2) There are some positions that I can never seem to actually find, where after Nf3 ...Bg4, h3, black plays ...h5! Yes, it sacrifices the bishop. But after hxg4 ...hxg4, black has his rook on an open h-file (b/c black hasn't castled) and will swing his queen over. This only creates mating threats when white has castled. But like I've said, I've only managed to lose a bishop through this -- maybe someone could post the move order that makes this trap work.
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bucklehead
94 ( +1 | -1 )
Ruy Lopez, Krol Variation I knew this sounded familiar to me, though perhaps it's not quite what you'd heard. In any event, the line runs 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Ng4?!
Here the apparent intention is to continue 6. h3 h5 7. hxg4? hxg4 where black has a decided edge given the tactical possibilities involving ...Qh4. Of course, if white plays something less greedy (such as 7. d4), black may find himself wrong-footed. The interesting thing about the Krol Variation, though, is that its major proponent is not some let's-throw-a-monkey-wrench blitz fanatic, but a well-known correspondence player, Poland's Wladyslaw Krol.
There's not a lot of data on the opening...indeed, niether the ChessGames nor ChessLab public databases has a single game with 5...Ng4. ChessBase has 13 games by Krol with the variation, where he is 5+ 5- 3=. So feel free to draw your own conclusions.
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buddie
19 ( +1 | -1 )
Ruy Lopez, exchange variation This is one of the "main lines" in the RL exchange:
1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Bxc6 dxc6 5.0-0 Bg4 6.h3 h5
White can't take the Bishop immediately - e.g.
7.hxg4? hxg4 8. Nxe5? (Nh2 stops the mate but W is still losing) Qh4 9. f4 g3 and Qh1# mext move.
far1ey
14 ( +1 | -1 )
Or that Steintz game where he wins after Bg5 when black hasn't castled, I forget who its against but, anyone know?
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ionadowman
50 ( +1 | -1 )
The Lasker rule... ... Is mentioned in one of Dan Heisman's Novice Nook articles. Check out the Novice Nook #37 thread.
This 'rule' goes: Don't pin your opponent's King's Knight against the Queen before your opponent has castled.
I suppose the reasoning is that if the opponent biffs the bishop by advancing the h-pawn 1 square, followed by the g-pawn 2 squares, there is no question of weakening the castled king's position. So, if you wait until the K has castled, then the pin is a bit harder to break by such means.
I guess...
Cheers,
Ion
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far1ey
38 ( +1 | -1 )
Found it! Here is the game I mentioned it can be found at chessgames.com:
Serafino Dubois vs Wilhelm Steinitz London 1862
1.e4 e5 2.Nf3 Nc6 3.Bc4 Nf6 4.d3 Bc5 5.O-O d6 6.Bg5 h6 7.Bh4 g5 8.Bg3 h5 9.Nxg5 h4 10.Nxf7 hxg3 11.Nxd8 Bg4 12.Qd2 Nd4 13.Nc3 Nf3+ 14.gxf3 Bxf3 15.hxg3 Rh1# 0-1
I would put picture thingies but I don't know how so sorry. Discussion of the game can be found at:
-> www.chessgames.com
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