Use this menu to show the rule and how to play this game.

This menu is unavailable now.

Use this menu to show the rule and how to play this game.

Uncheck this menu not to alert when the number is set which appears in the same vertical/horizontal lane or in the same 3x3 matrix.

Check / uncheck this menu to turn on / off the alert when the number is set which appears in the same vertical/horizontal lane or in the same 3x3 matrix.

This menu is unavailable now.

Check this menu to alert when the number is set which appears in the same vertical/horizontal lane or in the same 3x3 matrix.

Use this menu to see answer. 

This menu is unavailable now.

Use this menu to see answer. 

Use this menu to undo take one back.

This menu is unavailable now.

Use this menu to undo take one back.

Use this menu to take one back.

This menu is unavailable now.

Use this menu to take one back.

Help Menu

Take one back, its undo, see answer, broken rule input alert on/off, and show rule and how to play.

This command is unavailable until you respond to the alert or dialog box.

Help Menu

Take one back, its undo, see answer, broken rule input alert on/off, and show rule and how to play.

This menu is unavailable until you respond to the alert box or dialog box.

Help Menu

Take one back, its undo, see answer, broken rule input alert on/off, and show rule and how to play.

This menu is unavailable now.

Help Menu

Take one back, its undo, see answer, broken rule input alert on/off, and show rule and how to play.