2000 иероглифов
2 тысячи мало, пробелов много будет из незнакомых иероглифов, значения которых будут не очевидно по контексту, миниму 4 надо.
Можно увеличить до 4000, но вторые две наверное дольше будут даваться из-за низкой частотности, хотя опыта больше будет.
Я тапримерно такую статистику читал.
1000 - 90%
2000 - 95%
3000 - 98%
4000 - 99%
Хотя можно как раз сразу попасть на эти 5% (свыше 2000)
Вот, допустим 30 знаков по частотности
2000 痕 [hén] 痕迹 hénjì mark, trace, vestige; 伤痕 shānghén scar
2001 遣 [qiǎn] 派遣 pàiqiǎn send, dispatch; 先遣 sent in advance
2002 驳(F駁) [bó] contradict; 驳斥 bóchì denounce; 反驳 refute
2003 绳(F繩) [shéng] (绳子, 绳索) rope, cord
2004 彭 [Péng] (surname)
2005 娱(F娛) [yú] 娱乐 yúlè amuse; amusement, recreation
2006 卿 [qīng] minister or high official in ancient times
2007 忌 [jì] envy; avoid; quit; 忌讳 jìhui taboo
2008 赔(F賠) [péi] compensate, pay for; lose money; 赔不是 apologize
2009 赠(F贈) [zèng] (赠送 zèngsòng) give as a present
2010 妨 [fáng] (妨碍) hinder, impede; harm; 不妨 no harm in...
2011 抖 [dǒu] (发抖 fādǒu, 颤抖 chàndǒu) shiver, tremble
2012 膨 [péng] 膨胀 péngzhàng expand, swell
2013 艇 [tǐng] light boat
2014 泄 [xiè] leak, drain; divulge [yì] 泄沓
2015 柏 [bǎi] (柏树) cypress [Bó] 柏林 Berlin [bò] (檗)
2016 糟 [zāo] rotten; 糟糕 zāogāo bad luck! 糟踏 zāota waste, spoil
2017 嫩 [nèn] tender, delicate; light; inexperienced
2018 枚 [méi] (量) (measure word for small objects)
2019 矮 [ǎi] short (not tall); low; 矮子 ǎizi dwarf
2020 摔 [shuāi] fall down; 摔交 shuāijiāo wrestling
2021 愧 [kuì] (惭愧 cánkuì) ashamed
2022 悦(F悅) [yuè] (喜悦 xǐyuè) happy, joyful
2023 趁 [chèn] take advantage of; while; 趁机会
2024 漆 [qī] lacquer, paint; 油漆 paint; 漆黑 pitch-black
2025 谅(F諒) [liàng] (原谅 yuánliàng) forgive
2026 绵(F綿) [mián] 连绵 unbroken; 海绵 sponge [miān] 软绵绵 soft
2027 冤 [yuān] injustice; 冤枉 yuānwang do wrong, treat unjustly
2028 棍 [gùn] (棍子) rod, stick; 拐棍 guǎigùn walking stick
2029 拆 [chāi] take apart, dismantle [cā]
2030 饥(F飢) [jī] starve, be hungry; famine; 饥饿 hunger, starvation
2000 痕 [hén] 痕迹 hénjì mark, trace, vestige; 伤痕 shānghén scar
2001 遣 [qiǎn] 派遣 pàiqiǎn send, dispatch; 先遣 sent in advance
2002 驳(F駁) [bó] contradict; 驳斥 bóchì denounce; 反驳 refute
2003 绳(F繩) [shéng] (绳子, 绳索) rope, cord
2004 彭 [Péng] (surname)
2005 娱(F娛) [yú] 娱乐 yúlè amuse; amusement, recreation
2006 卿 [qīng] minister or high official in ancient times
2007 忌 [jì] envy; avoid; quit; 忌讳 jìhui taboo
2008 赔(F賠) [péi] compensate, pay for; lose money; 赔不是 apologize
2009 赠(F贈) [zèng] (赠送 zèngsòng) give as a present
2010 妨 [fáng] (妨碍) hinder, impede; harm; 不妨 no harm in...
2011 抖 [dǒu] (发抖 fādǒu, 颤抖 chàndǒu) shiver, tremble
2012 膨 [péng] 膨胀 péngzhàng expand, swell
2013 艇 [tǐng] light boat
2014 泄 [xiè] leak, drain; divulge [yì] 泄沓
2015 柏 [bǎi] (柏树) cypress [Bó] 柏林 Berlin [bò] (檗)
2016 糟 [zāo] rotten; 糟糕 zāogāo bad luck! 糟踏 zāota waste, spoil
2017 嫩 [nèn] tender, delicate; light; inexperienced
2018 枚 [méi] (量) (measure word for small objects)
2019 矮 [ǎi] short (not tall); low; 矮子 ǎizi dwarf
2020 摔 [shuāi] fall down; 摔交 shuāijiāo wrestling
2021 愧 [kuì] (惭愧 cánkuì) ashamed
2022 悦(F悅) [yuè] (喜悦 xǐyuè) happy, joyful
2023 趁 [chèn] take advantage of; while; 趁机会
2024 漆 [qī] lacquer, paint; 油漆 paint; 漆黑 pitch-black
2025 谅(F諒) [liàng] (原谅 yuánliàng) forgive
2026 绵(F綿) [mián] 连绵 unbroken; 海绵 sponge [miān] 软绵绵 soft
2027 冤 [yuān] injustice; 冤枉 yuānwang do wrong, treat unjustly
2028 棍 [gùn] (棍子) rod, stick; 拐棍 guǎigùn walking stick
2029 拆 [chāi] take apart, dismantle [cā]
2030 饥(F飢) [jī] starve, be hungry; famine; 饥饿 hunger, starvation