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Monty dev-20260512 - strong chess engine (Windows and MacOS)

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Monty is free and distributed under the GNU Affero General Public License (AGPL v3). Essentially, this means you are free to do almost exactly what you want with the program, including distributing it among your friends, making it available for download from your website, selling it (either by itself or as part of some bigger software package), or using it as the starting point for a software project of your own.

Author: Jamie Whiting  Rating Chess Engines Diary CEDR=3421

The only real limitation is that whenever you distribute Monty in some way, including distribution over a network (such as providing access to Monty via a web application or service), you MUST always include the license and the full source code (or a pointer to where the source code can be found) to generate the exact binary you are distributing. If you make any changes to the source code, these changes must also be made available under AGPL v3.

Monty dev-20260512 - what's new?

Fix comparator-ordering bug (#154)

The bug occurred when playing against a different opponent, because another opponent can sometimes play a less explored move. Passed 100 games vs a different opponent with no issues:

```
Results of MontyBugFix vs Minic (30+2, 384t, 48000MB, test_crashes.epd):
Elo: -59.64 +/- 33.91, nElo: -122.57 +/- 68.10
LOS: 0.02 %, DrawRatio: 54.00 %, PairsRatio: 0.21
Games: 100, Wins: 22, Losses: 39, Draws: 39, Points: 41.5 (41.50 %)
Ptnml(0-2): [2, 17, 27, 4, 0], WL/DD Ratio: 2.00
```

No functional change.
Bench: 1529336

Monty1.0.0 vs other engines:

Akira CE 1.1.14/4+44 Engines
KnightX 4.112.5/4+14 Engines
Vengeance 3.1.0 JA1.5/4-14 Engines
Vengeance 3.0.01/4-24 Engines
Stockfish 16.10.5/4-34 Engines
Ethereal 14.31 JA0.5/4-34 Engines
Marvin 6.3.00.5/4-34 Engines
Alexandria 7.0.00/4-44 Engines
Javelin 1.0.03/3+33 Engines
DoctorB 1.2.1 JA3/3+33 Engines
Yakka 1.02/3+13 Engines
Belette 3.0.02/3+13 Engines
MadChess 3.2.22/3+13 Engines
Delocto 0.71.5/3+03 Engines
Knightx 4.01.5/3+03 Engines
Clarity 7.2.01/3-13 Engines
Princhess 0.17.01/3-13 Engines
Stash 35.26 JA0.5/3-23 Engines
Motor 0.5.00/3-33 Engines
Vault 0.4.1 JA0/3-33 Engines
Lizard 10.40/3-33 Engines


Monty dev-20260512 download

Monty dev-20260111 for MacOS download: 

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