i have heard that one who has finished 50 games loses less points as one who has finished only 5 games if they lose. so it's understandable that one with a high ranking and a lot of finished games loses less points as a person with lower ranking and a few finished games. maybe???
i've read the shogi-rules and i go along with ughaibus proposal.
Otherwise it is possibile to write in the rules that's not a good manner to threat with continuos check.
what do you think about situations, where your opponent offers you a draw, because he threats time after time with "checkmate" and so there is no progress.
i speak about this situation:
http://brainking.com/game/ShowGame?g=494533
(esconder) Se clicar no nome de uma pessoa e depois em Jogos Terminados terá uma lista dos tipos de jogos já terminados; clicando sobre o tipo de jogo pretendido, terá um sumário de todos esses jogos. Clique no nome do jogo e terá um jogo para ver e analisar. (Servant) (mostrar todas as dicas)