Automated Game Commentary Generator

Hirotaka Kameko, Shinsuke Mori, Yoshimasa Tsuruoka
The University of Tokyo, Kyoto University


We are aiming to build a system that can automatically generate a commentary for a Shogi game. Shogi (将棋) is a chess-like board game and is also known as Japanese chess. For detail rules, please refer to Wikipedia

The task mainly consists of two problems.

We propose a machine learning-based approach for generating comments. We generate comments by using a discriminative language model trained with a large amount of game records and comments by human experts.

Besides, comments of Shogi usually consist of textual descriptions and move expressions such as "P-7f" (7六歩) and "Bx8h+" (8八角成). These move expressions are generated not by a language model but by a game tree. We also propose a method that maps these move expressions and game states of Shogi.


Our system generates comments for Shogi games of professional players in real time.

@Gekisasi 's tweet

Selected Results

Move: P-4f
腰掛け (reclining)0.99
指 (action)0.99
方 (plan)0.99
銀 (silver)0.98
Generated: ▲4六歩から腰掛け銀を目指す指し方もあるところだが、
(trans: Black can play P-4f and aim for reclining-silver strategy, but...)


Shogi comment tools


Hirotaka Kameko, Shinsuke Mori, Yoshimasa Tsuruoka.
Learning a Game Commentary Generator with Grounded Move Expressions
Proceedings of 2015 IEEE Conference on Computational Intelligence and Games (2015 IEEE CIG), [paper] [slide] (to appear).