Sungorus 1.3

[Pablo Vazquez]

Hi,

Sungorus 1.3 is out. The main changes are:

- Fixed a bug in TransRetrieve(): score wasn't being adjusted before checking for cutoff

- Removed lmr for now (too many inaccuracies)

- Null move: changed R from 3 to 2

- Full pv to the tip by not allowing cutoffs from exact scores inside the window

- Code cleanup

- Real time instead of CPU time

- Best move returned from last iteration, even if incomplete, since best move from previous iteration is tried first

- Pv displayed as soon as best move changes, not at the end of the iteration

- 4-way associative transposition table

- Added isolated pawns and tuned passed pawns

Regards

[Jorge Garcia]

Hi Pablo,

Congratulations for your new release, how much stronger do you think is sungorus 1.3 from your last release ?

Best regards

[Pablo Vazquez]

Hi Jorge,

In my own tests it scored around 55% against 1.2, so that would be 30-40 elo. But it could be less because it was at fast time controls and not many games.

Regards

[Graham Banks]

Thanks Pablo.

[Jorge Garcia]

Thanks Pablo,
congratulations for your improving

[swami]

Sungorus 1.3

by Pablo Vasquez, Spain.

Strategic Test Suite Conditions:

Core2Quad 32 bits, Q6600, 2 GB RAM, 2.4GHZ
10 seconds per position
900 positions
Engine uses 129 Mb Hash.
Single CPU
Arena GUI


Overall Performance:

• Total Score: 439/900 [...] Average : 48.77% [...] Grade: D [...] Total Rated Time: 82.98/150 minutes [4979 Seconds/9000 Seconds] [...] Percentage Time Used: 55.32%

Subject-wise Scores:

STS (v1.0) - Undermining:
54/100, Grade: C+

STS (v2.1) - Open Files and Diagonals:
36/100, Grade: ?

STS (v3.0) - Knight Outposts/Centralization/Repositioning:
51/100, Grade: C

STS (v4.1) - Square Vacancy:
51/100, Grade: C

STS (v5.0) - Bishop vs Knight:
57/100, Grade: C+

STS (v6.0) - Re-Capturing:
63/100, Grade: B

STS (v7.0) - Offer of Simplification:
47/100, Grade: D

STS (v8.1) - Advancement of f/g/h Pawns:
42 /100, Grade: E

STS (v9.0) - Advancement of a/b/c Pawns:
38/100, Grade: ?

Best Wishes,
Swami

[swami]

Partial - Credit Scores Calculation:
Using STS Stat 2.5

Sungorus 1.3

by Pablo Vasquez, Spain.

Overall Performance:

• Total Score: 5546/9000 [...] Average : 61.62% [...] Grade: B [...]

Subject-wise Scores:

STS (v1.0) - Undermining:
636/1000, Grade: A-

STS (v2.1) - Open Files and Diagonals:
492/1000, Grade: C+

STS (v3.0) - Knight Outposts/Centralization/Repositioning:
658/1000, Grade: B+

STS (v4.1) - Square Vacancy:
625/1000, Grade: B+

STS (v5.0) - Bishop vs Knight:
646/1000, Grade: A-

STS (v6.0) - Re-Capturing:
821/100, Grade: A-

STS (v7.0) - Offer of Simplification:
603/1000, Grade: C+

STS (v8.1) - Advancement of f/g/h Pawns:
543 /1000, Grade: C+

STS (v9.0) - Advancement of a/b/c Pawns:
522/1000, Grade: C+

Best Wishes,
Swami

[swami]

Strength:

Re-Capturing
Knight Outposts
Bishop vs Knight

Weakness:

Open Files and diagonals

[Pablo Vazquez]

Thanks Swami