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[DhtmlXQ_adddate]2012-03-07 14:35:01[/DhtmlXQ_adddate]
[DhtmlXQ_editdate]2012-03-07 14:35:00[/DhtmlXQ_editdate]
[DhtmlXQ_title]Cach tham dinh khai cuoc don gian[/DhtmlXQ_title]
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[DhtmlXQ_open]D50 中炮对列炮[/DhtmlXQ_open]
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[DhtmlXQ_refer]http%3A//w.mtwebcenters.com.tw/%0D%0Ahttp%3A//w.mtwebcenters.com.tw/jimpng/Basic_kills/basics_anatomy_2_evaluating_your_opening_01.html[/DhtmlXQ_refer]
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[DhtmlXQ_owner]clbdoiduong[/DhtmlXQ_owner]
[DhtmlXQ_oldowner]clbdoiduong[/DhtmlXQ_oldowner]
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[DhtmlXQ_comment0]This is a simple case to illustrate the concept of efficiency.[/DhtmlXQ_comment0]
[DhtmlXQ_comment2]Opposite direction cannons.[/DhtmlXQ_comment2]
[DhtmlXQ_comment6]Opposite direction cannon, big variation. So far ok[/DhtmlXQ_comment6]
[DhtmlXQ_comment8]This is a poor move for black. ||We shall examine this move and another move for black to understand the concept of efficiency more clearly. Please go through the following moves in variation A and then compare them with variation B.[/DhtmlXQ_comment8]
[DhtmlXQ_comment10]Up till now, red has moved one cannon move, 2 knight moves, and in addition to the 0.5 move advantage bestowed by default (red moves first), Red has effectively moved 3.5 moves.||Black however, has only moved only 2 moves. ||Therefore, Red has an intiative of 3.5 -2 = 1.5 moves. ||Conclusion: Up until this stage, red has expanded his initiave by one move. The reason for black's demise is the chariot exchange.[/DhtmlXQ_comment10]
[DhtmlXQ_comment12]Up till now, red has moved one cannon move, 2 knight moves, one pawn move, in addition to the 0.5 move advantage bestowed by default (red moves first), Red has effectively moved 4.5 moves.||Black however, has only moved only 3 moves. ||Therefore, Red has an intiative of 4.5-3 = 1.5 moves. ||Conclusion: Up until this stage, red has expanded his initiave by one move. The reason for black's demise is the chariot exchange.[/DhtmlXQ_comment12]
[DhtmlXQ_comment1_8]What happens if Black does not offer an exchange now?[/DhtmlXQ_comment1_8]
[DhtmlXQ_comment1_9]So far so good for both sides.[/DhtmlXQ_comment1_9]
[DhtmlXQ_comment1_10]Black offers an exchange only now, one move later.||What is the difference?[/DhtmlXQ_comment1_10]
[DhtmlXQ_comment1_12]In this scenario, ||Red's effective moves: 2 knight moves and one cannon move + 0.5 move advantage by default = 3.5 moves.||Black's effective moves : 2 cannon moves and one knight move = 3 effective moves thus far.||||Conclusion: there is no gain in initiative for red. ||||In both games, 6 moves were made by each side, but because of an unnecessary offer of exchange by black in variation one, Red has increased his initiative.[/DhtmlXQ_comment1_12]
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