李世石 VS AlphaGo 第二局看法 - 圍棋

By Anthony
at 2016-03-11T15:56
at 2016-03-11T15:56
Table of Contents
看很多不下棋的在那邊放話好像電腦每一步都是對的,覺得可以細想一下程式的原
理,畢竟目前的程式離真理還是有很大的差距的。我也只是個十幾年前的業四,也
不敢說要評棋,但一些簡單好壞應該還是可以講講。
棋類不像POKER、麻將、或撲克牌遊戲是機率遊戲,棋類很多地方是有唯一解的。用
死活詰棋當例子,如果電腦真的只是用機率判斷,勝率最高的那點可能是:
[對手應的若是那唯一解電腦必死,下其他任何點電腦都活,勝率99%]
電腦應該選擇這變化嗎?當然不該!
當然我相信AG程式裡會對必勝必敗的點做排除(不然可能連簡單攻殺都會出錯),但
我只是強調AG用所謂"最高勝率"判斷落子的策略也正是目前電腦應該還可以被擊敗
的原因。越早期的著手你要用勝敗機率來判斷越是困難,也很好理解為什麼電腦前
期容易出現惡棋。
柯潔講話那麼托大我覺得也是有原因的(當然我覺得他來下也不見得會贏),就是因
為電腦還是有出現明顯的壞棋。AG有些疑問手有可能是好棋,像11虎完13手拔,或
37尖沖這種過去普遍覺得不太好的,也許事實上並不太虧。
(解釋給X日棋迷:通常13要手拔不會先虎,因為那會把棋下重容易被攻。尖沖通常
認為對方若在3路你尖沖合理,對方在4路你讓人4路圍空通常是虧的,也就是為什
麼評論會認為小李怎樣都該往4路那邊壓而不該實戰往5路壓)
但43黏到61是黑不好的型這應該是沒甚麼爭議的。若實戰李沒有之後幾個緩手讓黑
下到73,而是早一步攻擊那塊弱棋,那應該會是白主動的局面。換個方向想,電腦
中間那坨單官下半天最後還要多花一手73來連回,想也知道不可能好。
因為棋不是機率遊戲,但電腦是用機率來判斷,因此人若能把握這點下出局部最佳
解應是可以在佔些便宜的。
--
理,畢竟目前的程式離真理還是有很大的差距的。我也只是個十幾年前的業四,也
不敢說要評棋,但一些簡單好壞應該還是可以講講。
棋類不像POKER、麻將、或撲克牌遊戲是機率遊戲,棋類很多地方是有唯一解的。用
死活詰棋當例子,如果電腦真的只是用機率判斷,勝率最高的那點可能是:
[對手應的若是那唯一解電腦必死,下其他任何點電腦都活,勝率99%]
電腦應該選擇這變化嗎?當然不該!
當然我相信AG程式裡會對必勝必敗的點做排除(不然可能連簡單攻殺都會出錯),但
我只是強調AG用所謂"最高勝率"判斷落子的策略也正是目前電腦應該還可以被擊敗
的原因。越早期的著手你要用勝敗機率來判斷越是困難,也很好理解為什麼電腦前
期容易出現惡棋。
柯潔講話那麼托大我覺得也是有原因的(當然我覺得他來下也不見得會贏),就是因
為電腦還是有出現明顯的壞棋。AG有些疑問手有可能是好棋,像11虎完13手拔,或
37尖沖這種過去普遍覺得不太好的,也許事實上並不太虧。
(解釋給X日棋迷:通常13要手拔不會先虎,因為那會把棋下重容易被攻。尖沖通常
認為對方若在3路你尖沖合理,對方在4路你讓人4路圍空通常是虧的,也就是為什
麼評論會認為小李怎樣都該往4路那邊壓而不該實戰往5路壓)
但43黏到61是黑不好的型這應該是沒甚麼爭議的。若實戰李沒有之後幾個緩手讓黑
下到73,而是早一步攻擊那塊弱棋,那應該會是白主動的局面。換個方向想,電腦
中間那坨單官下半天最後還要多花一手73來連回,想也知道不可能好。
因為棋不是機率遊戲,但電腦是用機率來判斷,因此人若能把握這點下出局部最佳
解應是可以在佔些便宜的。
--
Tags:
圍棋
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