Hey my bot got a kokushi

July 31st, 2009 by bps

I am just dropping by to point out how my Tenhou bot, mittens, got a kokushi. Replay is here: http://tenhou.net/0/?log=2009072922gm-0009-0000-378e13d4&tw=1&ts=2

If you are wondering, yes, it does play legitimately.

-arcturus.su guy

P.S. Holy shit osamu your blog's interface is atricous my god.

In conclusion I loathe blogs.

11 Responses to “Hey my bot got a kokushi”

  1. Harlaown Says:

    Well fuck.

  2. umai Says:

    Some pro AI there, next bot should be called 役満GET

  3. ron5 Says:

    Oh wow, he even riichi'd waiting on the hatsu. ENTERPRISE QUALITY
    Did you implement a specific kokushi function like i suggested yesterday or how does he decide when to go for kokushi?

  4. Speedwagon Says:

    As far as I know It always riichi.
    Gj mittens.

  5. Independent Observer Says:

    Sugoi riichi aniki

  6. bps Says:

    It just picks kokushi if it is the most efficient given the tiles drawn.
    Kokushi counts shanten too, etc.

  7. umai Says:

    yea so here's the log of its second yakuman

    http://tenhou.net/0/?log=2009080101gm-0089-0000-6bfb7b16&tw=0&ts=3

  8. harph Says:

    Really nice, good job. Does it have some learning AI (like a neural network or some pattern learning) or is it just based on counting probabilities compared to win amount?

  9. TRA Says:

    harph: It just picks the best discard from the draws which it gets and riichi's when it gets into tenpai. As of now, this is extremely simplistic. However, it manages to stay at the 1dan level on tenhou.

    On a related note, it got yet another yakuman. A kokushi again.
    http://tenhou.net/0/?log=2009080403gm-0089-0000-b8115dcf&tw=2&ts=4
    This hand got it from last with 5900 into 1st.

  10. drob Says:

    3rd kokushi in how many games?

  11. TRA Says:

    3rd kokushi in about 500 games, with about 4200 hands.

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