How strong is Maverick 0.2?
Maverick 0.2 has been out a couple of days now. I’ve run some test games and I really quite surprised at how strong it seems to be.
Fruit 1.0:
The first test was against Fruit 1.0. I played this match using Shredder’s GUI. As I expected Fruit won. I really was dazzles by Fruit’s silky smooth search as it carved it ways through each ply (especially in the endgame).
- CCRL Rating = ???? (between 2300 and 2400)
- Time = 1 minute plus 1 second per move
- Result for Maverick: Wins = 24, Loses = 63, Draws = 13
- Percentage = 30.5%
- ELO Difference = -146
I was pleased with this result. However, it would seem Fruit’s strength is not well established. As far as I can tell it us somewhere between 2300 and 2400 ELO on the CCRL scale. This would put Maverick 0.2 between 2150 and 2250 ELO.
Phalanx XXIII:
The second opponent was Phalanx XXIII. Another classic engine. As I watched them play it is clear Phalanx has much more knowledge than Maverick. Yet Maverick did well to win some game based on its speed.
- CCRL Rating = 2387
- Results for Maverick: Wins = 36, Loses = 49, Draws = 15,
- Percentage = 43.5%
- ELO Difference = -45
Once again I was pleased. Based on this result Maverick is over 2300 ELO, which is probably too high but let’s see.
And remember, at this stage Maverick is lacking some standard features:
- No mobility in the evaluation
- No passed pawn code
- No king safety
- No pawn structure code
- No late move reduction
- No Internal Iterative Deepening
- Lots of endgame evaluation missing
So I’m encouraged by Maverick’s strength. If you run any sort of ratings test I’d be interested in the results.
I will not release another version until it has gained 100 ELO. This may be some time.