16-08-26 |
Elb |
simple_eg3 |
diff
|
LLR: -2.96 (-2.94,2.94) [-3.00,1.00]
Total: 45853 W: 6661 L: 6878 D: 32314
|
sprt
@ 10+0.1 th 1 |
Take 3 Endgame simplification: retire KBPPKB endgame, let opposite bishop endgames be handled in KBPsK endgame. And in the process, improve evaluations for them. Lowered priority for take 2. |
16-08-25 |
Elb |
simple_eg2 |
diff
|
LLR: -0.84 (-2.94,2.94) [-3.00,1.00]
Total: 71800 W: 10566 L: 10713 D: 50521
|
sprt
@ 10+0.1 th 1 |
Endgame simplification: retire KBPPKB endgame, let opposite bishop endgames be handled in KBPsK endgame. And in the process, improve evaluations for them. |
16-08-24 |
Elb |
simple_eg |
diff
|
LLR: -2.96 (-2.94,2.94) [-3.00,1.00]
Total: 11945 W: 1713 L: 1882 D: 8350
|
sprt
@ 10+0.1 th 1 |
Simplification of bishop endgames that gives better evaluations. |
16-08-24 |
Elb |
tune_opp |
diff
|
21653/30000 iterations
43999/60000 games played
|
60000
@ 10+0.1 th 1 |
Tuning session for opp bishops endgame |
16-08-24 |
Elb |
opb_mt |
diff
|
LLR: -2.96 (-2.94,2.94) [0.00,4.00]
Total: 9495 W: 1291 L: 1414 D: 6790
|
sprt
@ 10+0.1 th 1 |
Take 2: get rid of popcount to improve performance |
16-08-23 |
Elb |
opb_mt |
diff
|
LLR: -2.96 (-2.94,2.94) [0.00,4.00]
Total: 19656 W: 2849 L: 2943 D: 13864
|
sprt
@ 10+0.1 th 1 |
Another opposite bishops endgame parameter tweak. This one seems to improve a lot of evals for positions that were reported by Mindbreaker1 here: https://groups.google.com/forum/#!topic/fishcooking/vuoEKP2yOCE%5B501-525%5D |
16-08-23 |
Elb |
holes |
diff
|
LLR: -2.94 (-2.94,2.94) [0.00,5.00]
Total: 10524 W: 1872 L: 1952 D: 6700
|
sprt
@ 10+0.1 th 1 |
Take 3: now only give penalty in endgame |
16-08-23 |
Elb |
holes |
diff
|
LLR: -2.96 (-2.94,2.94) [0.00,5.00]
Total: 4099 W: 737 L: 846 D: 2516
|
sprt
@ 10+0.1 th 1 |
Try the concept of holes in pawn structure (take 2) |
16-08-23 |
Elb |
holes |
diff
|
LLR: -2.95 (-2.94,2.94) [0.00,5.00]
Total: 7733 W: 1366 L: 1458 D: 4909
|
sprt
@ 10+0.1 th 1 |
Try the concept of holes in pawn structure |
16-08-23 |
Elb |
knight_outpost2 |
diff
|
LLR: -2.95 (-2.94,2.94) [0.00,4.00]
Total: 20657 W: 3714 L: 3800 D: 13143
|
sprt
@ 10+0.1 th 1 |
Another attempt at knight outposts |
16-08-22 |
Elb |
pawn_dist |
diff
|
LLR: -2.94 (-2.94,2.94) [0.00,4.00]
Total: 11204 W: 2003 L: 2121 D: 7080
|
sprt
@ 10+0.1 th 1 |
Take 2 |
16-08-22 |
Elb |
pawn_dist |
diff
|
LLR: -2.96 (-2.94,2.94) [0.00,4.00]
Total: 9126 W: 1625 L: 1751 D: 5750
|
sprt
@ 10+0.1 th 1 |
Use pawn distance in opposite bishop scale factor calculation |
16-08-21 |
Elb |
lmr_captweak |
diff
|
LLR: -2.97 (-2.94,2.94) [0.00,5.00]
Total: 5240 W: 946 L: 1050 D: 3244
|
sprt
@ 10+0.1 th 1 |
Take 2 |
16-08-19 |
Elb |
st_det |
diff
|
ELO: 0.07 +-2.6 (95%) LOS: 52.1%
Total: 20000 W: 2948 L: 2944 D: 14108
|
20000
@ 10+0.1 th 1 |
A quick check if it is possible to improve upon test http://tests.stockfishchess.org/tests/view/57b233d30ebc591c761f6405 for bishop endgames |
16-08-19 |
Elb |
lmr_captweak |
diff
|
LLR: -2.95 (-2.94,2.94) [0.00,4.00]
Total: 41531 W: 7701 L: 7714 D: 26116
|
sprt
@ 10+0.1 th 1 |
LMR on captures tweak |
16-08-19 |
Elb |
outposts_tuned2 |
diff
|
LLR: -2.96 (-2.94,2.94) [0.00,5.00]
Total: 18897 W: 3476 L: 3520 D: 11901
|
sprt
@ 10+0.1 th 1 |
Safe outposts with tuned values |
16-08-18 |
Elb |
tune_outposts2 |
diff
|
29011/30000 iterations
59530/60000 games played
|
60000
@ 10+0.1 th 1 |
Tune safe outposts (outposts that cannot be attacked by enemy minors) |
16-08-18 |
Elb |
outposts_tuned |
diff
|
LLR: -2.94 (-2.94,2.94) [0.00,4.00]
Total: 21158 W: 3960 L: 4043 D: 13155
|
sprt
@ 10+0.1 th 1 |
Use tuned outposts values |
16-08-17 |
Elb |
knight_outpost |
diff
|
LLR: -2.95 (-2.94,2.94) [0.00,4.00]
Total: 63625 W: 12010 L: 11944 D: 39671
|
sprt
@ 10+0.1 th 1 |
Increase bonus for knight outpost (nr 9 of Stephane Nicolet's suggestions) |
16-08-17 |
Elb |
tune_outposts |
diff
|
27103/30000 iterations
56024/60000 games played
|
60000
@ 10+0.1 th 1 |
Tune the outpost values as knight_outpost test indicates some improvement is possible. Lowered priority of knight_outpost test. |
16-08-17 |
Elb |
knight_outpost |
diff
|
LLR: -2.97 (-2.94,2.94) [0.00,5.00]
Total: 35242 W: 6591 L: 6564 D: 22087
|
sprt
@ 10+0.1 th 1 |
Take 2: increase outpost bonus if knight cannot be attacked by minors |
16-08-15 |
Elb |
KBPPKB_endgame2 |
diff
|
ELO: -0.38 +-2.6 (95%) LOS: 38.7%
Total: 20000 W: 2926 L: 2948 D: 14126
|
20000
@ 10+0.1 th 1 |
See pull request #747. I would like to check what the ELO gain/loss is for this endgame patch. |
16-08-15 |
Elb |
opp_bishop4 |
diff
|
LLR: -2.96 (-2.94,2.94) [0.00,5.00]
Total: 25463 W: 3718 L: 3747 D: 17998
|
sprt
@ 10+0.1 th 1 |
Take 2: try fortress detection in bishop endgames |
16-08-15 |
Elb |
opp_bishop4 |
diff
|
LLR: -2.95 (-2.94,2.94) [0.00,5.00]
Total: 17842 W: 2592 L: 2648 D: 12602
|
sprt
@ 10+0.1 th 1 |
Try fortress detection in bishop endgames |
16-08-10 |
Elb |
combo7 |
diff
|
LLR: -3.39 (-2.94,2.94) [0.00,5.00]
Total: 9160 W: 1695 L: 1800 D: 5665
|
sprt
@ 10+0.1 th 1 |
Combo of 2 yellow patches |
16-08-09 |
Elb |
opp_bishop3 |
diff
|
LLR: -2.94 (-2.94,2.94) [0.00,5.00]
Total: 41170 W: 6088 L: 6059 D: 29023
|
sprt
@ 10+0.1 th 1 |
Final try in this series |
16-08-09 |
Elb |
opp_bishop3 |
diff
|
LLR: -2.96 (-2.94,2.94) [0.00,5.00]
Total: 19292 W: 2870 L: 2920 D: 13502
|
sprt
@ 10+0.1 th 1 |
As take 3 was the best run yet, increase the values for attacking pawns of the stronger side |
16-08-08 |
Elb |
opp_bishop3 |
diff
|
LLR: -2.95 (-2.94,2.94) [0.00,5.00]
Total: 71366 W: 10651 L: 10512 D: 50203
|
sprt
@ 10+0.1 th 1 |
Take 3: check if the stronger side has pawns that can be attacked. |
16-08-08 |
Elb |
opp_bishop3 |
diff
|
LLR: -2.97 (-2.94,2.94) [0.00,5.00]
Total: 13709 W: 1925 L: 1997 D: 9787
|
sprt
@ 10+0.1 th 1 |
Take 2: if all pawns of the strong side are blocked, more drawing chances |
16-08-08 |
Elb |
opp_bishop3 |
diff
|
LLR: -2.95 (-2.94,2.94) [0.00,5.00]
Total: 8994 W: 1249 L: 1337 D: 6408
|
sprt
@ 10+0.1 th 1 |
Have a points based system in determining scale factor in opposite bishops endgame |
16-08-07 |
Elb |
opp_bishop2 |
diff
|
LLR: -2.95 (-2.94,2.94) [0.00,5.00]
Total: 41805 W: 6172 L: 6141 D: 29492
|
sprt
@ 10+0.1 th 1 |
Use tuned values |
16-08-07 |
Elb |
opp_bishop2 |
diff
|
LLR: -2.97 (-2.94,2.94) [0.00,5.00]
Total: 19778 W: 2771 L: 2822 D: 14185
|
sprt
@ 10+0.1 th 1 |
Tuned values variant 2 |
16-08-05 |
Elb |
tune_opp_bishops |
diff
|
29466/30000 iterations
59821/60000 games played
|
60000
@ 10+0.1 th 1 |
As test http://tests.stockfishchess.org/tests/view/57a479630ebc591c761f5e40 looks promising, tune values for opposite bishop endgames. |
16-08-05 |
Elb |
opp_bishop2 |
diff
|
LLR: -2.95 (-2.94,2.94) [0.00,5.00]
Total: 58440 W: 8540 L: 8451 D: 41449
|
sprt
@ 10+0.1 th 1 |
Take 3: more drawish if the weak side's bishop and pawns are all on squares of the same color |
16-08-05 |
Elb |
opp_bishop2 |
diff
|
LLR: -2.43 (-2.94,2.94) [0.00,5.00]
Total: 11114 W: 1580 L: 1639 D: 7895
|
sprt
@ 10+0.1 th 1 |
Take 2: use pawn span in opposite bishops endgame |
16-08-04 |
Elb |
opp_bishop2 |
diff
|
LLR: -2.95 (-2.94,2.94) [0.00,5.00]
Total: 12829 W: 1837 L: 1911 D: 9081
|
sprt
@ 10+0.1 th 1 |
Wrong rook pawn in opposite bishop endgames (rescheduled with 8moves book) |
16-08-04 |
Elb |
opp_bishop2 |
diff
|
LLR: 0.22 (-2.94,2.94) [0.00,5.00]
Total: 2072 W: 372 L: 354 D: 1346
|
sprt
@ 10+0.1 th 1 |
Wrong rook pawn in opposite bishop endgames |
16-08-04 |
Elb |
space_tweak |
diff
|
LLR: -2.95 (-2.94,2.94) [0.00,4.00]
Total: 20105 W: 3819 L: 3906 D: 12380
|
sprt
@ 10+0.1 th 1 |
Space parameter tweak |
16-08-04 |
Elb |
rook_space |
diff
|
LLR: -2.96 (-2.94,2.94) [0.00,5.00]
Total: 9520 W: 1742 L: 1827 D: 5951
|
sprt
@ 10+0.1 th 1 |
Another try: only consider the backrank |
16-08-04 |
Elb |
rook_space |
diff
|
LLR: -2.96 (-2.94,2.94) [0.00,5.00]
Total: 11744 W: 2227 L: 2302 D: 7215
|
sprt
@ 10+0.1 th 1 |
Take 3 |
16-08-03 |
Elb |
rook_space |
diff
|
LLR: -2.94 (-2.94,2.94) [0.00,5.00]
Total: 25918 W: 4793 L: 4806 D: 16319
|
sprt
@ 10+0.1 th 1 |
Take 2b (bugfix) |
16-08-03 |
Elb |
rook_space |
diff
|
LLR: -0.88 (-2.94,2.94) [0.00,5.00]
Total: 3380 W: 456 L: 480 D: 2444
|
sprt
@ 60+0.6 th 1 |
Take 2 (LTC) |
16-08-03 |
Elb |
rook_space |
diff
|
LLR: 2.97 (-2.94,2.94) [0.00,5.00]
Total: 8858 W: 1811 L: 1643 D: 5404
|
sprt
@ 10+0.1 th 1 |
Take 2 |
16-08-03 |
Elb |
rook_space |
diff
|
LLR: -2.96 (-2.94,2.94) [0.00,5.00]
Total: 11482 W: 2127 L: 2203 D: 7152
|
sprt
@ 10+0.1 th 1 |
Experiment with rook space |
16-08-02 |
Elb |
pawn_threat |
diff
|
LLR: -2.96 (-2.94,2.94) [0.00,5.00]
Total: 4370 W: 787 L: 895 D: 2688
|
sprt
@ 10+0.1 th 1 |
Pawn under threat |
16-08-01 |
Elb |
opp_bishop |
diff
|
LLR: -2.97 (-2.94,2.94) [0.00,5.00]
Total: 11991 W: 2264 L: 2338 D: 7389
|
sprt
@ 10+0.1 th 1 |
Take 3 |
16-07-29 |
Elb |
opp_bishop |
diff
|
LLR: -2.96 (-2.94,2.94) [0.00,5.00]
Total: 8295 W: 1494 L: 1584 D: 5217
|
sprt
@ 10+0.1 th 1 |
Take 2: when attacking side has major pieces, increase scale factor, otherwise decrease |
16-07-29 |
Elb |
opp_bishop |
diff
|
LLR: -2.95 (-2.94,2.94) [0.00,5.00]
Total: 4412 W: 789 L: 896 D: 2727
|
sprt
@ 10+0.1 th 1 |
Opposite colored bishop material dependency scaling |
16-07-29 |
Elb |
blocked_p2 |
diff
|
LLR: -2.95 (-2.94,2.94) [0.00,5.00]
Total: 12031 W: 2282 L: 2355 D: 7394
|
sprt
@ 10+0.1 th 1 |
Take 4: use -2 factor |
16-07-29 |
Elb |
blocked_p2 |
diff
|
LLR: -2.96 (-2.94,2.94) [0.00,5.00]
Total: 22851 W: 4407 L: 4432 D: 14012
|
sprt
@ 10+0.1 th 1 |
Take 3: correct for pawns |