推荐回答(4个)
为了准确、快速、方便地反映产联众中国象棋玩家的实力水平,规范联众比赛,拟采用等级分制度。等级分是棋手真实水平的数学的量化,在很大程度上能反映棋手的实力水平。实施方案如下:
1. 等级分和对应称号
特级大师 >= 2600
一级大师 >= 2400
二级大师 >= 2200
三级大师 >= 2000
一级棋士 >= 1800
二级棋士 >= 1700
三级棋士 >= 1600
四级棋士 >= 1500
五级棋士 >= 1400 ,新手缺省分数
六级棋士 >= 1300
七级棋士 >= 1200
八级棋士 >= 1100
九级棋士 < 1100
无称号 下棋盘数小于 20 盘
2. 新手缺省的分数是 1400 ,无称号,和有级别的人下够 20 盘后才会有称号。
3. 特级大师和一级大师是通过联众组织的大型比赛授予的,平常的下棋不管分数多高是升不到这个称号的,一旦授予后就不会根据等级分的改变而改变称号。
4. 另外针对真实的棋手还有如下称号和他的真实称号对应:
· 国际特大
· 国家特大
· 国际大师
· 国家大师
这些带 · 的称号并不和他们的等级分有确切关系。
5. 有级别的人之间下棋分数的算法
Rn=Ro+K·(W-We)
其中:
Rn :新的等级分
Ro :老的等级分
W :对局得分,其中赢记 1 分 , 输记 0 分,和记 0.5 分
We :预期得分,根据象棋的两个人的分数的差别而不同, We=1/(1+10^((r2-r1)/400))
K :换算系数, Ro<2000 K=32 ,Ro<2400 K=24, Ro<2800 K=16, Ro>=2800 K=8
6. 有级别和无级别的人下棋的分数算法 :
有级别的人: Rn=Ro+Rd·(n/20)·(2/3)
无级别的人: Rn=Ro+Rd·(41-n)/20
其中:
n :无级别的人下过棋的有效盘数
Rd : =K·(W-We) 按正常两人都有等级分算出的等级分变化值
由上面的公式看出:
有级别的和无级别的人下棋,分数不会超过正常变化的 2/3 ,并且无级别的人下棋的盘数越少,对有级别的人的影响越小。无级别的人下棋分数变化开始会比较大,随着下棋盘数的增多,分数趋近真实水平时,分数的变化也趋近正常值。
7. 无级别的人之间下棋既不计分也不计盘数
就是和别人对局,赢的有积分的,评积分生计,主要靠自己的技术水平。
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