#Chessbase opening book how to#

Simple stuff, but then we also have to factor in the database games which end in an evaluation symbol (such as +/=) instead of in a result. Adding these together we get 600, and then dividing by the total number of games (ten) we get 600/10 = 60, for a final success rate of 60%. Now letвЂ™s say that six more games are played and all of them were draws. For example, if in the present position the move 6.h4 had been played just four times and White won three of the games, then the success rate would be 75% (White wins score as 100вЂ™s, Black wins as zeroes thus 100Г—3 = 300 and 300/4 = 75). In the most basic form the percentages are just straight statistics. This can be changed (and IвЂ™ll show you how in a minute), but we need to first take a short detour to learn how these percentages are derived. The default view always shows the statistics from WhiteвЂ™s viewpoint, meaning that success rates closer to 100% are better for White while percentages closer to 0% are good for Black. In this post weвЂ™re going to focus specifically on the success rate percentages. WeвЂ™ve previously examined and described the statistics which appear in the opening tree. Go to the top of the Notation pane and click the вЂњOpenings bookвЂќ tab and you should see the following view: Next weвЂ™ll open a new board window (by clicking the вЂњBoardвЂќ button in the ribbon under the вЂњHomeвЂќ menu):ДЇor our example, weвЂ™ll make the following moves on the chessboard:ДЎ.e4 c6 2.d4 d5 3.Nc3 dxe4 4.Nxe4 Bf5 5.Ng3 Bg6 Put a check in the box beside вЂњDefault bookвЂќ now CB11 will use the Powerbook automatically when any functions involving the opening book are invoked. Right-click on PowerbookвЂ™s icon in ChessBaseвЂ™s database desktop and select вЂњPropertiesвЂќ from the pop-up menu: WeвЂ™ll use Powerbook 2011 for our examples, and start by making it the default opening book for ChessBase 11вЂ™s statistical use. Today weвЂ™ll look at the numbers themselves, as well as an additional (and very useful) statistical display.

#Chessbase opening book how to#

In our last blog post, we saw how to get extended opening statistics from a ChessBase 11 tree.