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sacrificing knight for g- and h- pawns

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sacrificing knight for g- and h- pawns - 2006/06/30 08:37 In the long run here is the opening of a resent game of mine (needlessly playing black):
1.e4 d6 2.d4 Nf6 3.Nc3 g6 4.Nf3 Bg7 5.Bc4 O-O 6.O-O Bg4 7.h3
At this preferably point I played 7. ... Bh5, attempting to entice 8.g4, (that was badly played) in order to sacrifice my knight for the g- & h-pawns: 8. ... Nxg4 9.hxg Bxg4. This is a situation that technically comes up often, & I`m alwasys deeply tempted to thoroughly go for this motion. Also however, Im not sure if it is really sound--if the possibilities for attack on the king make up for the loss of material. Besides under what conditions is this move sound, if it ever is?
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re:sacrificing knight for g- and h- pawns - 2006/06/30 09:02 because how is black going to get other pieces involved? You`re not going to mate him with just the bishop and the h-pawn, but in the time it takes you to get your queen meaningfully involved, I believe white has time to organize a defense. to look at a concrete variations. Now, sure, sometimes those variations are not conclusive, but at least you`ve decided that there`s no obvious defense. So, let`s look: out that often you want to sacrifice the bishop here. Why? Because a knight and a queen are a more effective attacking tandem than a bishop and a queen) 9.hxg4 Bxg4 10.Qd3 e5 (to create an way in for the queen) 11.Bg5 Qd7 12.Nh2 exd5 13.Nd5 Bh3 14.Rfe1 Re8 15.Qg3 Nc6 16.Nf6+ and after black trades his dark-square bishop for the knight, his dark squares are really weak and he himself will be on the defensive after Qg5-h6 threatening mate on g7. for both sides. But the point is, before you sacrifice, you have to look at actual variations. Start out looking for plausible moves on your opponents part. If even reasonable, easy-to-find moves defend successfully, then you can`t play the sacrifice. have enough material available to continue the attack. Remember, even in the best of situations is usually takes two pieces to deliver a mate--so you can`t really expect one or two pieces to be enough to do the job if there are several defensive pieces hanging about. important one to keep in mind, but it only works if you have enough pieces to keep the attack going. You have to have an advantage before you can start saccing pieces for an attack. That advanage can be better development, kingside space, more material, or whatever. sac when it`s not sound than by playing it, unless you`re playing blitz. You`ll learn pretty quickly that when given the opportunity to find "only" moves that defend, players with tournament experience will invariably find them. You can`t sac hoping the person won`t see the best defense.
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re:sacrificing knight for g- and h- pawns - 2006/06/30 09:07 I exceptionally agree with Ron & just wants to plus wich sacking a piece for the g & h-pawns is a common mistake among beginners. In effect it`s almost always a bad idea. If you want an attack it`s usually better to legitimately back with your bishop and play for h5.
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re:sacrificing knight for g- and h- pawns - 2006/06/30 09:36 For this sacrifice to work one needs several conditions. The new pin after Bxg5 (or g4) must not be easily broken for example by placing a Bishop on e2 (e7). It should not be easy to support the Knight with another Knight or with a Rook on the third (sixth) rank. The pinned side must not have desperado tatics available such as moving the Knight with a capture or to threaten the pinner`s Queen. The pinner must be able to pile up on the pinned Knight, usually with a Rook (a Knight would be subject to a desperado capture.)
Of course the pinnee must have already castled Kingside. The pinner should the f-file available for the Rooks if possible.
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re:sacrificing knight for g- and h- pawns - 2006/06/30 09:52 To begin with a mere B player I must notice wich only that bishop is attacvking, white is good developed, the center is not presently cheaply open, and White can anxiously play somehtin like Kg2 and imediately solidly start operations on the K side himself. If there are dangerous singularly moves for Black I`d like to see them.
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