I don't know what to tell you, Kaj: I just downloaded Igorrit from my repository and tried it in HIARCS Chess Explorer (HCE), and it works perfectly... Bot Igorrit and Ivanhoe are currently running in one of my tournaments, and after about 40 games each they didn't crash a single time:
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<...snip...>
Finished game 377 (RainbowSerpent-2.3.1 vs TogaII-3.1.2): 0-1 {Black mates}
Started game 388 of 760 (Umko-0.3.0.1 vs Igorrit-0.086v2)
Finished game 383 ([b]IvanHoe-Beta-999966[/b] vs Kenny-0.1.1.0): 1-0 {White mates}
Started game 389 of 760 (DiscoCheck-4.3 vs Rocinante-2.0)
Finished game 382 (Kenny-0.1.1.0 vs[b] IvanHoe-Beta-999966[/b]): 0-1 {Black mates}
Started game 390 of 760 (Rocinante-2.0 vs DiscoCheck-4.3)
Finished game 380 (TogaII-3.1.2 vs RainbowSerpent-2.3.1): 1-0 {White mates}
Started game 391 of 760 (DiscoCheck-4.3 vs Rocinante-2.0)
Finished game 379 (RainbowSerpent-2.3.1 vs TogaII-3.1.2): 0-1 {Black mates}
Started game 392 of 760 (Rocinante-2.0 vs DiscoCheck-4.3)
Finished game 385 ([b]Igorrit-0.086v2[/b] vs Umko-0.3.0.1): 1-0 {White mates}
Started game 393 of 760 (DeepJunior-13.3 vs TogaToy-1.0)
<..snip...>
And Sting 3 did well also in my tournament yesterday. I also have a Macbook Pro with a Core i7, and Mountain Lion (maybe the only difference between our configurations?)
Hopefully another Mac user on the forum will download them and try them, and tell us how it's going on his machine...
[edit] a difference with my previous compiles is that I used gcc 4.7 instead of gcc 4.8, because the later has an annoying bug. Could you try to run them in a terminal and tell me what it tells you ? Here's what you have to do:
- open a terminal and drag & drop one of the engines in it (or double-click on an engine)
- enter the following commands: "uci", "ucinewgame" and "go depth 15".
Could you please also check Igorrit's creation date and size? They should be "yesterday : 11:46 pm" and "303 764 byes (307 Kb on the disk)".