Chris CainoandMarco Costalba 3ed86ed3f9 Remove RedundantMajor ...

But compensate by reducing rook and queen
value by 53 = (160 / 3)

Material imbalances are affected as follows:

       Red. Major   Rook  Queen  Total
QRR      +160      -2*53    -53     +1
QR       +160        -53    -53    +54
RR       +160      -2*53      0    +54
R           0        -53      0    -53
Q           0          0    -53    -53

so that the imbalance changes by at most 54 + 53 = 107 units.
This corresponds to appromximately 3.5cp in the final evaluation.

Verified with fixed number 40000 games at both short
and long TC it does not regress.

Short TC 15+0.05
ELO: 1.93 +-2.1 (95%) LOS: 96.6%
Total: 40000 W: 7520 L: 7298 D: 25182

Long TC 60+0.05
ELO: -0.33 +-1.9 (95%) LOS: 36.5%
Total: 39663 W: 6067 L: 6105 D: 27491

bench: 6703846

2013-11-10 09:48:49 +01:00

..

benchmark.cpp

Add more depth/positions to bench

2013-09-29 09:43:10 +02:00

bitbase.cpp

Use prefix operators wherever possible

2013-10-05 18:10:43 +02:00

bitboard.cpp

Use prefix operators wherever possible

2013-10-05 18:10:43 +02:00

bitboard.h

Use frontmost_sq() and backmost_sq helpers

2013-08-30 16:22:22 +02:00

bitcount.h

Use #ifndef instead of #if !defined

2013-07-24 19:49:17 +02:00

book.cpp

Fix best move lookup bug

2013-09-27 09:04:24 +02:00

book.h

Use #ifndef instead of #if !defined

2013-07-24 19:49:17 +02:00

endgame.cpp

Retire mirror()

2013-10-24 20:40:26 +02:00

endgame.h

Further smplify pawn endgames

2013-10-23 19:56:35 +02:00

evaluate.cpp

Futility pruning simplification

2013-11-09 10:17:27 +01:00

evaluate.h

Futility pruning simplification

2013-11-09 10:17:27 +01:00

main.cpp

Use a formula for chain membership bonus

2013-10-31 06:13:30 +01:00

Makefile

Fix build on Mac OS X

2013-09-28 04:16:16 -07:00

material.cpp

Remove RedundantMajor

2013-11-10 09:48:49 +01:00

material.h

Use #ifndef instead of #if !defined

2013-07-24 19:49:17 +02:00

misc.cpp

Use double everywhere

2013-10-05 18:12:52 +02:00

misc.h

Streamline time computation

2013-08-03 18:30:43 +02:00

movegen.cpp

Restrict mobility of pinned pieces

2013-11-07 22:26:03 +01:00

movegen.h

Use prefix operators wherever possible

2013-10-05 18:10:43 +02:00

movepick.cpp

Use prefix operators wherever possible

2013-10-05 18:10:43 +02:00

movepick.h

Futility pruning simplification

2013-11-09 10:17:27 +01:00

notation.cpp

Restrict mobility of pinned pieces

2013-11-07 22:26:03 +01:00

notation.h

Use #ifndef instead of #if !defined

2013-07-24 19:49:17 +02:00

pawns.cpp

Use a formula for chain membership bonus

2013-10-31 06:13:30 +01:00

pawns.h

Use a formula for chain membership bonus

2013-10-31 06:13:30 +01:00

platform.h

Streamline time computation

2013-08-03 18:30:43 +02:00

position.cpp

Fix compile in debug mode

2013-11-09 18:41:51 +01:00

position.h

Restrict mobility of pinned pieces

2013-11-07 22:26:03 +01:00

psqtab.h

Use #ifndef instead of #if !defined

2013-07-24 19:49:17 +02:00

rkiss.h

Remove unuseful optimization in RKISS

2013-10-13 03:35:17 -07:00

search.cpp

Fix printing of incorrect PV in some cases

2013-11-09 19:05:43 +01:00

search.h

Futility pruning simplification

2013-11-09 10:17:27 +01:00

thread.cpp

Set timer to a fixed interval

2013-11-01 08:56:15 +01:00

thread.h

Set timer to a fixed interval

2013-11-01 08:56:15 +01:00

timeman.cpp

Fix divide by zero bug in late game

2013-10-27 08:03:58 +01:00

timeman.h

Use double everywhere

2013-10-05 18:12:52 +02:00

tt.cpp

Futility pruning simplification

2013-11-09 10:17:27 +01:00

tt.h

Futility pruning simplification

2013-11-09 10:17:27 +01:00

types.h

Retire mirror()

2013-10-24 20:40:26 +02:00

uci.cpp

Restore development version

2013-08-21 08:41:47 +02:00

ucioption.cpp

Increase slowmover and reduce instability

2013-10-08 21:24:21 +02:00

ucioption.h

Use #ifndef instead of #if !defined

2013-07-24 19:49:17 +02:00