Trying to improve an old chess bot by experimenting with various interesting techniques.
You can play (or watch) the bot on lichess: https://lichess.org/@/CodingAdventureBot/playing
This is a sequel to: https://youtu.be/U4ogK0MIzqk
If you’d like to support my work (and get early access to new videos and projects) you can become a patron of the channel over here: https://www.patreon.com/SebastianLague
Source code: https://github.com/SebLague/Chess-Coding-Adventure
A really fun video about various algorithms for playing chess by @tom7:
Music and other credits:
https://github.com/SebLague/Misc-Project-Info/blob/main/Chess-2/Credits.txt
Chapters:
00:00 Intro
00:38 Battle of the Bots
03:18 Maybe Don’t Throw Away the Best Move?
07:13 Transposition Troubles
10:55 Search Extensions
14:01 Refactoring and Recapping
15:51 Tweaking Kings and Pawns
19:35 Bitboards!
23:54 Passed Pawns (and more)
28:32 Magic Bitboards (minus the magic)
34:40 The Magical Part of Magic Bitboards
39:00 Testing and Optimizing Move Generation
41:50 Killers, Reductions, and Repetitions
45:56 Creating a Lichess Bot
49:30 Let’s Play!
54:54 Existential Crisis
55:02 The Bot’s First Game Online
56:12 Can Our Bot Beat Stockfish? (No)
56:59 Rating Speculation
59:28 Outro
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