If you prefer to keep the original ECO code assignment already in PGN databases please uncheck this
option.
Online sources
By default HIARCS Chess Explorer will contact the HIARCS Chess Server (HCS) to retrieve information
about openings and endgames which are displayed by Opening Explorer and Analysis Explorer as
appropriate. If you want stop access to the HIARCS Chess Server this option can be unchecked.
The book license field allows HIARCS Opening Book subscribers to access additional content in the
Opening Explorer. A valid book license will enable access to powerful new opening books on the HIARCS
Chess Server. For security reasons actual licenses are never displayed and are always encrypted.
Troubleshooting
In the unlikely event you need to troubleshoot an engine added to HIARCS Chess Explorer you can set this
option. An engine.log file will then be generated in the HIARCS Chess/Explorer folder with details of the
communication between the GUI and engine. This option will only be applied until you exit HIARCS Chess
Explorer when the option is unset. This option should only be set by advanced users and only for
troubleshooting an engine as it will affect the performance of any engine used.
Clicking the Apply button will apply the current settings but keeps the dialog open. Clicking the Cancel
button will cancel any changes since the last apply and exit the dialog. Finally click the OK button to
apply the current settings and exit the dialog back to the main display.
Select move
When stepping through a game using the Ctrl+right arrow key, HIARCS Chess Explorer will give you a
choice when you reach a position which has more than one move option (ie. where there a variations). The
Select move dialog shows the move choices with the main continuation shown in bold. You can select the
next move using the mouse, using the keyboard letter for the variation (here A, B or C) or using the arrow
keys, up or down to change the choice and the right arrow or enter key to select the move.
Promote to
When a pawn reaches the eighth rank you will see the Promote to dialog displayed:
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