7. Annex: Advanced Filter Usage

Warning

This section is for advanced users of blunderDB who wish to fully leverage the position search features.

Filters are at the heart of position analysis in blunderDB. Their use allows for searching specific positions with great precision. In this section, the use of filters through the command line is detailed. The command line can be accessed by pressing the SPACE key. It allows users to quickly combine filters and use the filter library with ease.

7.1. Command-line search for positions

To perform a search using filters,

  1. Press the TAB key to open the search panel.

  2. Edit the current position.

  3. Open the command line using the SPACE key.

  4. Use the command s followed, optionally, by filters.

  5. Start the search with the ENTER key.

Warning

Don’t forget to clear the current position before starting a search (BACKSPACE key), if it isn’t the one you want, to avoid excessively filtering checker structures.

Note

The list of available filters in the command line is provided in Section 4.4.

7.2. Search in Current Results

It is possible to refine a search by searching among the currently filtered positions. This allows you to progressively narrow down the results.

In the command line, use the ss command followed by filters (e.g.: ss nc, ss E>40). The ss command works after a prior search.

The search window (CTRL-F) also offers a “Search in current results” checkbox for the same functionality.

7.3. Filter Library

The filter library allows the user to save search commands to facilitate their thematic studies.

To add a filter to the library,

  1. Press TAB to open the search panel.

  2. Open the filter library by pressing CTRL-K.

  3. Edit the current position.

  4. Give a name to the filter.

  5. Edit the search command.

  6. Save the search command using the “Add” button.

Tip

While editing the command, you can use the UP and DOWN arrow keys to navigate through the command history.

To use a filter saved in the library,

  1. Open the filter library by pressing CTRL-K.

  2. Search for the desired filter.

  3. Double-click on the filter to start the search.

7.4. Examples

Here are some examples of using filters in the command line:

Type de position

Structure de pions

Command

Courses

s nc

Courses petites

s nc P<70

Frapper au point 1

s m"6/1*"

Backgame 1-4

portes 24, 21

s p>35

Décision de Take/Pass à -2 -4

dés vides côté joueur du haut, score -2/-4

s s d

Envoi de too good

dés vides côté joueur du bas

s d e>1000

Blitz avec au moins 20% de gammon

portes dans le jan, hommes à la barre

s g>20

Erreurs du joueur 1 de plus de 40 millipoints

s E>40

Position du tournoi Aachen2024

s t"Aachen2024"

Un pion arriéré à ramener

s k1,1

Quitter le point 20

point 20

s m"20/"

Prime contre prime

indiquer les primes

s

Ace-point bear-off

point 1 pour l’adversaire

s P<60

Double avec au moins 20pip d’avance

dés vides côté joueur du bas

s d p<-20

Positions du match 5

s ma5

Positions des matchs 2 à 4

s ma2,4

Positions des matchs 23 et 43

s ma23 ma43

Positions du tournoi 1

s tn1

Erreurs dans le tournoi 2

s tn2 E>40

Examples of searching within current results:

Scenario

Command

After s nc, search for short races

ss P<70

After s g>20, keep only errors

ss E>40

After s tn1, search for cube decisions

ss d