Abstract: A life and death judgment system for a go game played with a computer comprising an input reception unit that receives an input by a player, a life and death judgment processing unit that judges whether judgment subject stones or target stones are alive, and an output processing unit that outputs the result of the life and death judgment is provided. The life and death judgment processing unit tentatively determines the priority of a move at each point when implementing the judgment in a judgment realm, judges a point of a move with a high possibility and/or a move with a low possibility of a result of the judgment, changes the priority of the point of the move with a high possibility with respect to each priority of the tentatively determined point, and undertakes the move of each stone based on the priority after such change, thereby implement the judgment.

Abstract: A life and death judgment system for a go game played with a computer comprising an input reception unit that receives an input by a player, a life and death judgment processing unit that judges whether judgment subject stones or target stones are alive, and an output processing unit that outputs the result of the life and death judgment is provided. The life and death judgment processing unit tentatively determines the priority of a move at each point when implementing the judgment in a judgment realm, judges a point of a move with a high possibility and/or a move with a low possibility of a result of the judgment, changes the priority of the point of the move with a high possibility with respect to each priority of the tentatively determined point, and undertakes the move of each stone based on the priority after such change, thereby implement the judgment.

Abstract: A life and death judgment system for a go game played with a computer comprising an input reception unit that receives an input by a player, a life and death judgment processing unit that judges whether judgment subject stones or target stones are alive, and an output processing unit that outputs the result of the life and death judgment is provided. The life and death judgment processing unit tentatively determines the priority of a move at each point when implementing the judgment in a judgment realm, judges a point of a move with a high possibility and/or a move with a low possibility of a result of the judgment, changes the priority of the point of the move with a high possibility with respect to each priority of the tentatively determined point, and undertakes the move of each stone based on the priority after such change, thereby implement the judgment.

Abstract: A system is for assessing life and death in go games played on a computer, and includes an input-receiving unit for receiving input from a player, an assessment unit that assesses the life and death of target stones, and an output unit for outputting the results of the assessment in the assessment unit. The assessment unit receives input specifying one or more target stones, specifies the points on the board where a boundary and a board edge are within a prescribed distance from each other, revises the assessment area by expanding the assessment area, assesses an optional stone in the post-revision assessment area to be alive if said stone escapes and was a target stone, and if said stone was not a target stone, performs a life and death assessment after adding the condition that said stone is not captured and a target stone connected to said stone is alive.

Abstract: A system is for assessing life and death in go games played on a computer, and includes an input-receiving unit for receiving input from a player, an assessment unit that assesses the life and death of target stones, and an output unit for outputting the results of the assessment in the assessment unit. The assessment unit receives input specifying one or more target stones, specifies the points on the board where a boundary and a board edge are within a prescribed distance from each other, revises the assessment area by expanding the assessment area, assesses an optional stone in the post-revision assessment area to be alive if said stone escapes and was a target stone, and if said stone was not a target stone, performs a life and death assessment after adding the condition that said stone is not captured and a target stone connected to said stone is alive.

Abstract: A system is for assessing life and death in go games played on a computer. and includes an input-receiving unit for receiving input from a player, an assessment unit that assesses the life and death of target stones, and an output unit for outputting the results of the assessment in the assessment unit. The assessment unit receives input specifying one or more target stones, specifies the points on the board where a boundary and a board edge are within a prescribed distance from each other, revises the assessment area by expanding the assessment area, assesses an optional stone in the post-revision assessment area to be alive if said stone escapes and was a target stone, and if said stone was not a target stone, performs a life and death assessment after adding the condition that said stone is not captured and a target stone connected to said stone is alive.

Abstract: A life and death judgment system for a go game played with a computer comprising an input reception unit that receives an input by a player, a life and death judgment processing unit that judges whether judgment subject stones or target stones are alive, and an output processing unit that outputs the result of the life and death judgment is provided. The life and death judgment processing unit tentatively determines the priority of a move at each point when implementing the judgment in a judgment realm, judges a point of a move with a high possibility and/or a move with a low possibility of a result of the judgment, changes the priority of the point of the move with a high possibility with respect to each priority of the tentatively determined point, and undertakes the move of each stone based on the priority after such change, thereby out implement the judgment.

Abstract: A go playing system enabling the players to play go over a network. The system comprises player information storage means, dan/kyu grade information storage means, play processing means, point computing means for computing an increase/decrease of the points of each player according to the win or loss of the play with a basic point, point reporting means for reporting an increase or decrease of the points due to the win or loss to each player terminal point updating means for storing the new points corresponding to the win/loss in the player information storage means, dan/kyu grade changing means for changing the dan/kyu grade of the winner and the loser by comparing their points with the dan/kyu promotion point and dan/kyu demotion point, and dan/kyu grade reporting means for reporting the change of the dan/kyu grade to the player terminal used by the player if the dan/kyu grade of the player is changed by the dan/kyu grade changing means.