Bump 2.0.1 -> 2.1.0

Author: bsamseth

Cargo.lock

@@ -48,11 +48,6 @@ and so it seemed only fitting for my somewhat limited program to be named this.
 
 ## Road map
 
-I mostly enjoy improving the search algorithm more so than the evaluation function.
-Because of this, the evaluation function is currently _very_ simple. In fact, it is exactly the 
-[Simplified Evaluation function](https://www.chessprogramming.org/Simplified_Evaluation_Function) 
-from the Chess Programming Wiki. Just a material count and piece square tables. Nothing more. For now at least.
-
 The current plan for the project is to improve the strength. The following is a
 non-exhaustive list of possibilities for future additions, including all features that have
 been added so far. The list is inspired in large part by [this writeup](http://www.frayn.net/beowulf/theory.html).
@@ -71,7 +66,7 @@ been added so far. The list is inspired in large part by [this writeup](http://w
 -   [X] Delta pruning in quiescence search.
     +   [X] Prune when _no_ move can improve enough
     +   [X] Prune captures that are insufficient to improve
--   [ ] Tapered evaluation
+-   [X] Tapered evaluation
 -   [ ] Aspiration window search
 -   [ ] Late move reductions
 -   [ ] Static exchange evaluation for move ordering
@@ -89,39 +84,42 @@ adjustable `SkillLevel` is included for reference. This gives an impression of
 the relative improvements of the engine over time, but cannot be compared
 directly to any other rating systems (e.g. FIDE).
 
+
  |   # | PLAYER               |   RATING  | POINTS  | PLAYED   | (%)|
  |:---:|---|:---:|:---:|:---:|:---:|
- |   1 | Stockfish 14.1 (S6)    | 2210.1  |  124.5  |   190  | 65.5%|
- |   2 | Stockfish 14.1 (S5)    | 2171.5  |  131.5  |   221  | 59.5%|
- |   3 | Goldfish v2.0.0        | 2104.2  | 1086.0  |  1819  | 59.7%|
- |   4 | Goldfish v2.0.0-rc7    | 2030.4  |  687.0  |  1332  | 51.6%|
- |   5 | Goldfish v1.13.0       | 1983.0  | 1348.0  |  2622  | 51.4%|
- |   6 | Stockfish 14.1 (S4)    | 1973.5  |   63.5  |   214  | 29.7%|
- |   7 | Goldfish v1.12.1       | 1932.0  |  748.0  |  1613  | 46.4%|
- |   8 | Goldfish v1.12.0       | 1906.3  |  833.5  |  1528  | 54.5%|
- |   9 | Goldfish v1.11.1       | 1893.0  | 1095.0  |  2015  | 54.3%|
- |  10 | Goldfish v1.9.0        | 1878.3  | 1826.5  |  3538  | 51.6%|
- |  11 | Goldfish v1.11.0       | 1878.0  |  549.5  |  1100  | 50.0%|
- |  12 | Goldfish v2.0.0-rc6    | 1861.2  |  136.0  |   338  | 40.2%|
- |  13 | Goldfish v2.0.0-rc3    | 1853.6  |  177.5  |   417  | 42.6%|
- |  14 | Goldfish v2.0.0-rc5    | 1848.7  |  120.5  |   316  | 38.1%|
- |  15 | Goldfish v2.0.0-rc1    | 1835.2  |  217.5  |   436  | 49.9%|
- |  16 | Goldfish v2.0.0-rc2    | 1833.9  |  141.0  |   354  | 39.8%|
- |  17 | Goldfish v1.7.0        | 1813.7  | 1086.5  |  2053  | 52.9%|
- |  18 | Goldfish v1.8.2        | 1808.8  |  392.0  |   783  | 50.1%|
- |  19 | Goldfish v1.7.1        | 1806.6  |  244.0  |   477  | 51.2%|
- |  20 | Goldfish v1.8.0        | 1799.2  |  324.0  |   650  | 49.8%|
- |  21 | Goldfish v2.0.0-rc4    | 1798.8  |   19.5  |    57  | 34.2%|
- |  22 | Goldfish v1.8.1        | 1796.2  |  485.5  |  1000  | 48.5%|
- |  23 | Goldfish v1.6.0        | 1783.7  |  625.0  |  1151  | 54.3%|
- |  24 | Goldfish v1.7.2        | 1780.8  |   69.5  |   150  | 46.3%|
- |  25 | Goldfish v1.5.1        | 1726.0  |  645.5  |  1435  | 45.0%|
- |  26 | Goldfish v1.5          | 1723.7  |  554.5  |  1145  | 48.4%|
- |  27 | Goldfish v1.4          | 1720.9  |  646.5  |  1325  | 48.8%|
- |  28 | Goldfish v1.3          | 1706.2  |  314.0  |   680  | 46.2%|
- |  29 | Goldfish v1.2          | 1675.7  |  237.5  |   585  | 40.6%|
- |  30 | Goldfish v1.1          | 1634.5  |  210.0  |   597  | 35.2%|
- |  31 | Goldfish v1.0          | 1629.2  |  129.5  |   397  | 32.6%|
+ |  1 | Stockfish 14.1 (S7)    |  2378.2  |   46.0  |   78 | 59.0% |
+ |  2 | Goldfish v2.1.0        |  2314.1  |  196.5  |  374 | 52.5% |
+ |  3 | Stockfish 14.1 (S6)    |  2215.4  |  139.5  |  228 | 61.2% |
+ |  4 | Stockfish 14.1 (S5)    |  2172.3  |  139.5  |  247 | 56.5% |
+ |  5 | Goldfish v2.0.0        |  2104.2  | 1114.0  | 1945 | 57.3% |
+ |  6 | Goldfish v2.0.0-rc7    |  2030.4  |  687.0  | 1332 | 51.6% |
+ |  7 | Goldfish v1.13.0       |  1983.0  | 1348.0  | 2622 | 51.4% |
+ |  8 | Stockfish 14.1 (S4)    |  1974.2  |   63.5  |  214 | 29.7% |
+ |  9 | Goldfish v1.12.1       |  1932.0  |  748.0  | 1613 | 46.4% |
+ | 10 | Goldfish v1.12.0       |  1906.3  |  833.5  | 1528 | 54.5% |
+ | 11 | Goldfish v1.11.1       |  1893.0  | 1095.0  | 2015 | 54.3% |
+ | 12 | Goldfish v1.9.0        |  1878.3  | 1826.5  | 3538 | 51.6% |
+ | 13 | Goldfish v1.11.0       |  1878.0  |  549.5  | 1100 | 50.0% |
+ | 14 | Goldfish v2.0.0-rc6    |  1861.2  |  136.0  |  338 | 40.2% |
+ | 15 | Goldfish v2.0.0-rc3    |  1853.6  |  177.5  |  417 | 42.6% |
+ | 16 | Goldfish v2.0.0-rc5    |  1848.7  |  120.5  |  316 | 38.1% |
+ | 17 | Goldfish v2.0.0-rc1    |  1835.2  |  217.5  |  436 | 49.9% |
+ | 18 | Goldfish v2.0.0-rc2    |  1833.9  |  141.0  |  354 | 39.8% |
+ | 19 | Goldfish v1.7.0        |  1813.7  | 1086.5  | 2053 | 52.9% |
+ | 20 | Goldfish v1.8.2        |  1808.8  |  392.0  |  783 | 50.1% |
+ | 21 | Goldfish v1.7.1        |  1806.6  |  244.0  |  477 | 51.2% |
+ | 22 | Goldfish v1.8.0        |  1799.2  |  324.0  |  650 | 49.8% |
+ | 23 | Goldfish v2.0.0-rc4    |  1798.8  |   19.5  |   57 | 34.2% |
+ | 24 | Goldfish v1.8.1        |  1796.2  |  485.5  | 1000 | 48.5% |
+ | 25 | Goldfish v1.6.0        |  1783.7  |  625.0  | 1151 | 54.3% |
+ | 26 | Goldfish v1.7.2        |  1780.8  |   69.5  |  150 | 46.3% |
+ | 27 | Goldfish v1.5.1        |  1726.0  |  645.5  | 1435 | 45.0% |
+ | 28 | Goldfish v1.5          |  1723.7  |  554.5  | 1145 | 48.4% |
+ | 29 | Goldfish v1.4          |  1720.9  |  646.5  | 1325 | 48.8% |
+ | 30 | Goldfish v1.3          |  1706.2  |  314.0  |  680 | 46.2% |
+ | 31 | Goldfish v1.2          |  1675.7  |  237.5  |  585 | 40.6% |
+ | 32 | Goldfish v1.1          |  1634.5  |  210.0  |  597 | 35.2% |
+ | 33 | Goldfish v1.0          |  1629.2  |  129.5  |  397 | 32.6% |
 
 
 Detailed head-to-head statistics can be found [here](stats/head-to-head-history.txt).

README.md

@@ -1,6 +1,6 @@
 [package]
 name = "engine"
-version = "2.0.1"
+version = "2.1.0"
 edition = "2021"
 description = """\
 Goldfish - A UCI chess engine.

engine/Cargo.toml

@@ -2,11 +2,13 @@
 
 cutechess-cli \
 	-engine \
-	conf='Goldfish v2.0.0-rc8' \
+	conf='Goldfish v2.1.0' \
 	-engine \
-	conf='Goldfish v2.0.0-rc7' \
+	conf='Goldfish v2.0.0' \
 	-engine \
-	conf='Goldfish v1.13.0' \
+	conf='Stockfish 14.1 (S7)' \
+	-engine \
+	conf='Stockfish 14.1 (S8)' \
 	-each \
 	tc=40/60 \
 	proto=uci \
@@ -17,6 +19,6 @@ cutechess-cli \
 	-games 2 \
 	-rounds 500 \
 	-pgnout /home/bendik/goldfish/stats/match-history.pgn min "fi" \
-	-concurrency 10 \
+	-concurrency 4 \
 	-ratinginterval 5 \
 	-tournament gauntlet \