MadChess 2.0 participated in Graham Banks’ 55th amateur tournament in division 6. 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 1 Jazz 840 64-bit ** ½0 11 10 01 11 10 1½ 11 1½ 11 11 ½1 11 11 1½ 23.5/30 2 K2 0.75 ½1 ** 11 ½1 10 11 ½0 1½ 11 0½ ½1 10 ½½ 11 11 11 22.0/30 3 MadChess 2.0 64-bit 00 00 ** 01 11 01 01 01 10 1½ 11 1½ ½1 11 ½½ ½1 18.0/30 4 CmcChess 2.6 64-bit 01 ½0 10 ** 11 11… Continue Reading
I have released version 2 of my chess engine. I’ve rewritten the engine from scratch in a more procedural style code- as opposed to the sub-optimal (for chess engines at least) object-oriented style I used in MadChess 1.x. The engine is about 115 – 160 Elo stronger than its predecessor, depending on time control. I estimate it is about 2350 Elo. Source code and EXEs available on the Downloads page. Continue Reading
I have added parameters to limit the playing strength of MadChess 2.0 Beta. The simplest way to limit the playing strength of MadChess 2.0 Beta is to set the LimitStrength and Elo parameters. The engine will automatically configure material scores and positional knowledge. In addition, the engine will configure search speed (Nodes Per Second), move error, blunder error, and blunder percent based on the Elo value. Continue Reading
MadChess 1.4 participated in Graham Banks’ 54th amateur tournament in division 6. 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 1 PikoSzachy Extreme ** 00 11 ½½ 1½ 11 11 10 11 01 11 ½1 01 11 1½ ½1 22.0/30 2 Lozza 1.15 64-bit 11 ** 01 01 ½½ ½½ 11 ½1 ½½ ½1 ½1 1½ 10 1½ ½1 ½1 20.5/30 3 Tigran 2.4n 64-bit 00 10 ** 00 10 1½ ½1 11 11 1½ 1½ ½½ 11 1½ 11 1½ 20.0/30 4 Jazz 840 64-bit ½½ 10 11 ** 01 ½½… Continue Reading
I added rook and queen on 7th rank evaluation to MadChess 2.0 Beta. The code awards a bonus for a rook or queen on the 7th rank if the enemy king is on the 8th rank (its 1st rank). Also, I removed late move pruning. (When I implemented late move pruning in build 44 it added 39 Elo to the playing strength of MadChess 2.0 Beta.) I replaced it with more aggressive null and late move reductions, and more aggressive futility pruning, but found it decreased the playing strength. Next, I restored late move pruning and left in the aggressive… Continue Reading
I work as a Software Architect at an insurance company. We're building a modern tech stack in the cloud using C#, Azure, ASP.NET Core, Angular, TypeScript, etc.
I've always been interested in chess (a game of complete information) and poker (a game of incomplete information). This is my attempt to write chess-playing software. I'll get to poker later.
You may be interested to explore my general programming blog, ErikTheCoder.
