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+# SPRT Progress Log
+
+| **Feature**              | **Score**          | **Gain**                    |
+| ------------------------ | ------------------ | --------------------------- |
+| Fail-soft                | 4126 - 4080 - 1794 | 1.6 +/- 6.2, LOS: 69.4 %    |
+| PVS                      | 460 - 420 - 204    | 12.8 +/- 18.6, LOS: 91.1 %  |
+| TT lookups               | 672 - 566 - 282    | 24.3 +/- 15.8, LOS: 99.9 %  |
+| Soft timeout in ID       | 1335 - 1207 - 602  | 14.2 +/- 10.9, LOS: 99.4 %  |
+| Killer heuristic         | 1330 - 1201 - 545  | 14.6 +/- 11.1 LOS: 99.5 %   |
+| Check Extension          | 538 - 461 - 234    | 21.7 +/- 17.5, LOS: 99.3 %  |
+| Null Move Pruning        | 887 - 774 - 380    | 19.3 +/- 13.6, LOS: 99.7 %  |
+| TT cutoffs               | 1195 - 1072 - 555  | 15.2 +/- 11.5, LOS: 99.5 %  |
+| History heuristic        | 163 - 88 - 104     | 74.5 +/- 30.8, LOS: 100.0 % |
+| Late Move Reduction      | 172 - 105 - 176    | 51.8 +/- 25.1, LOS: 100.0 % |
+| Limit NMP to !PV         | 793 - 698 - 1134   | 12.6 +/- 10.0, LOS: 99.3 %  |
+| Aspiration Windows       | 200 - 136 - 273    | 36.6 +/- 20.5, LOS: 100.0 % |
+| Reverse Futility Pruning | 151 - 91 - 208     | 46.6 +/- 23.6, LOS: 100.0 % |
+| Limit TT cutoffs to !PV  | 575 - 492 - 882    | 14.8 +/- 11.4, LOS: 99.4 %  |
+| Insert TT entries in QS  | 237 - 170 - 319    | 32.2 +/- 18.9, LOS: 100.0 % |
+| Clear history tables     | 1021 - 915 - 1535  | 10.6 +/- 8.6, LOS: 99.2 %   |
+| Add LMR log formula      | 353 - 281 - 512    | 21.9 +/- 15.0, LOS: 99.8 %  |
+| Add history maluses      | 264 - 199 - 422    | 25.6 +/- 16.5, LOS: 99.9 %  |
+| Improve attack tables    | 110 - 54 - 145     | 63.7 +/- 28.3, LOS: 100.0 % |
+| Use & instead of %       | 1160 - 1046 - 2010 | 9.4 +/- 7.6, LOS: 99.2 %    |
+| Fix TT lookup            | 952 - 800 - 1560   | 16.0 +/- 8.6, LOS: 100.0 %  |
+|                          |                    |                             |