I am not sure why we ask this questions, it's like if we ask Lance Armstrong if he used doping during his career.
Nevertheless, here are my questions
1. Where do the similaries in the engineoutput come from? There are several characteristic that can only be found in Fruit and Rybka. Rybka 1.6.1 had a completely different output. (See below)
2. Why does Rybka 1.0 Beta see an advantage for white in this position?
FEN: 8/1k6/1b6/8/8/8/1K6/8 b - - 0 1
Rybka 1.0 Beta 32-bit:
Code: Select all
3 00:00 619 633.856 -0,03 Lb6g1
3 00:00 961 984.064 +0,03 Lb6d4+
4 00:00 4.687 4.799.488 0,00 Lb6d4+ Kb2b1
4 00:00 5.078 5.199.872 +0,03 Lb6g1
5 00:00 8.662 8.869.888 -0,03 Lb6g1 Kb2b3
5 00:00 12.665 12.968.960 +0,03 Lb6d4+ Kb2b1 Ld4b2
6 00:00 34.895 1.116.640 0,00 Lb6d4+ Kb2b1 Ld4b2 Kb1a2
6 00:00 35.819 1.146.208 +0,03 Lb6g1 Kb2b3 Kb7a6
7 00:00 52.054 1.110.485 -0,03 Lb6g1 Kb2c2 Kb7a6 Kc2d1
7 00:00 57.374 1.223.978 +0,03 Lb6d4+ Kb2b1 Ld4b2 Kb1a2 b2a1
8 00:00 93.754 1.215.241 +0,03 Lb6d4+ Kb2b1 Ld4b2 Kb1a2 Lb2a1 Ka2b1 Kb7c6
9 00:00 109.470 1.418.952 +0,03 Lb6d4+ Kb2b1 Ld4b2 Kb1a2 Lb2a1 Ka2b1 Kb7c6
10 00:00 129.394 1.394.731 +0,03 Lb6d4+ Kb2b1 Kb7c6 Kb1a2 Ld4a1 Ka2b1 Kc6b6 Kb1a2
11 00:00 159.176 1.293.620 +0,03 Lb6d4+ Kb2b1 Kb7c6 Kb1a2 Ld4a1 Ka2b1 Kc6b6 Kb1a2 Kb6c7 Ka2b1
12 00:00 188.274 1.227.978 +0,03 Lb6d4+ Kb2b1 Kb7c6 Kb1a2 Ld4a1 Ka2b1 Kc6b6 Kb1a2 Kb6c7 Ka2b1
13 00:00 248.911 1.249.435 +0,03 Lb6d4+ Kb2b1 Kb7c6 Kb1a2 Ld4a1 Ka2b1 Kc6b6 Kb1a2 Kb6c7 Ka2b1
14 00:00 313.246 1.277.943 +0,03 Lb6d4+ Kb2b1 Kb7c6 Kb1a2 Ld4a1 Ka2b1 Kc6b6 Kb1a2 Kb6c7 Ka2b1
15 00:00 515.770 1.467.079 +0,03 Lb6d4+ Kb2b1 Kb7c6 Kb1a2 Ld4a1 Ka2b1 Kc6b6 Kb1a2 Kb6c7 Ka2b1
16 00:00 592.044 1.433.222 +0,03 Lb6d4+ Kb2b1 Kb7c6 Kb1a2 Ld4a1 Ka2b1 Kc6b6 Kb1a2 Kb6c7 Ka2b1
17 00:00 694.167 1.418.816 +0,03 Lb6d4+ Kb2b1 Kb7c6 Kb1a2 Ld4a1 Ka2b1 Kc6b6 Kb1a2 Kb6c7 Ka2b1
18 00:01 802.923 1.381.837 +0,03 Lb6d4+ Kb2b1 Kb7c6 Kb1a2 Ld4a1 Ka2b1 Kc6b6 Kb1a2 Kb6c7 Ka2b1
19 00:01 1.197.910 1.375.179 +0,03 Lb6d4+ Kb2b1 Kb7c6 Kb1a2 Ld4a1 Ka2b1 Kc6b6 Kb1a2 Kb6c7 Ka2b1
20 00:01 1.469.854 1.415.927 +0,03 Lb6d4+ Kb2b1 Kb7c6 Kb1a2 Ld4a1 Ka2b1 Kc6b6 Kb1a2 Kb6c7 Ka2b1
21 00:01 2.159.069 1.488.812 +0,03 Lb6d4+ Kb2b1 Kb7c6 Kb1a2 Ld4a1 Ka2b1 Kc6b6 Kb1a2 Kb6c7 Ka2b1
What I wrote about the similaries:
An UCI engine is free in how and when sending it's info strings, thisresults in very different output of all the engines, just like some kind of fingerprint. Many engines have a quite similar output with all infos in one line, Fruits is very unique.
The position of the info strings for every depth in Fruit are:
depth
depth - seldepth - score cp - time - nodes - pv
depth - seldepth - time - nodes - nps
Later it looks like this:
currmove - currmovenumber 19
currmove - currmovenumber 20
depth (x) - seldepth - time - nodes nps
depth (x+1)
currmove - currmovenumber 1
time - nodes - nps - cpuload
hashfull
depth (x+1) seldepth - score cp - time - nodes - pv
currmove - currmovenumber 2
currmove - currmovenumber 3
Fruit 2.1
Code: Select all
80500<1:info depth 3
80500<1:info depth 3 seldepth 3 score cp 54 time 0 nodes 148 pv b1c3 b8c6 g1f3
80500<1:info depth 3 seldepth 3 time 0 nodes 186 nps 0
80500<1:info depth 4
80500<1:info depth 4 seldepth 6 score cp 0 time 0 nodes 300 pv b1c3 b8c6 g1f3 g8f6
80500<1:info depth 4 seldepth 6 time 0 nodes 976 nps 0
80500<1:info depth 5
80500<1:info depth 5 seldepth 9 score cp 48 time 0 nodes 1729 pv b1c3 b8c6 g1f3 g8f6 d2d4
8050<1:info depth 5 seldepth 9 time 0 nodes 1933 nps 0
80500<1:info depth 6
80500<1:info depth 6 seldepth 12 score cp 0 time 0 nodes 3331 pv b1c3 b8c6 g1f3 g8f6 d2d4 d7d5
80500<1:info depth 6 seldepth 12 time 0 nodes 9447 nps 0
80500<1:info depth 7
80516<1:info depth 7 seldepth 14 score cp 42 time 16 nodes 15332 pv b1c3 b8c6 g1f3 g8f6 d2d4 d7d5 c1f4
80516<1:info depth 7 seldepth 14 time 16 nodes 16243 nps 0
80516<1:info depth 8
80547<1:info depth 8 seldepth 17 score cp 0 time 47 nodes 35078 pv b1c3 g8f6 g1f3 b8c6 d2d4 d7d5 c1f4 c8f5
80594<1:info depth 8 seldepth 20 time 94 nodes 72286 nps 0
80594<1:info depth 9
80657<1:info depth 9 seldepth 20 score cp 15 time 157 nodes 125215 pv b1c3 g8f6 g1f3 b8c6 d2d4 d7d5 d1d3 c6b4 d3b5 b4c6
80688<1:info depth 9 seldepth 21 time 188 nodes 151298 nps 0
80688<1:info depth 10
80907<1:info depth 10 seldepth 22 score cp 12 time 407 nodes 330356 pv b1c3 d7d5 d2d4 c8f5 g1f3 g8f6 f3h4 f5g4 h2h3 g4d7
81032<1:info depth 10 seldepth 22 score cp 15 time 532 nodes 427686 pv g1f3 b8c6 d2d4 d7d5 b1c3 g8f6 d1d3 g7g6 c1f4 c8f5
81125<1:info depth 10 seldepth 24 time 625 nodes 504717 nps 0
81125<1:info depth 11
81500<1:info time 1000 nodes 800000 nps 800000 cpuload 1000
81500<1:info hashfull 18
81578<1:info depth 11 seldepth 24 score cp 23 time 1078 nodes 861114 pv g1f3 b8c6 b1c3 g8f6 e2e3 d7d5 f1b5 c8g4 h2h3 g4f5 e1g1
81578<1:info currmove b1c3 currmovenumber 2
81625<1:info currmove d2d4 currmovenumber 3
81657<1:info currmove e2e4 currmovenumber 4
81719<1:info currmove d2d3 currmovenumber 5
81735<1:info currmove e2e3 currmovenumber 6
81735<1:info currmove b1a3 currmovenumber 7
81750<1:info currmove g1h3 currmovenumber 8
81766<1:info currmove b2b3 currmovenumber 9
81766<1:info currmove b2b4 currmovenumber 10
81766<1:info currmove g2g3 currmovenumber 11
81782<1:info currmove g2g4 currmovenumber 12
81782<1:info currmove a2a4 currmovenumber 13
81797<1:info currmove h2h4 currmovenumber 14
81797<1:info currmove c2c4 currmovenumber 15
81797<1:info currmove f2f4 currmovenumber 16
81797<1:info currmove c2c3 currmovenumber 17
81797<1:info currmove a2a3 currmovenumber 18
81797<1:info currmove h2h3 currmovenumber 19
81813<1:info currmove f2f3 currmovenumber 20
81813<1:info depth 11 seldepth 24 time 1313 nodes 1036135 nps 789136
81813<1:info depth 12
81813<1:info currmove g1f3 currmovenumber 1
82500<1:info time 2000 nodes 1570000 nps 785000 cpuload 1000
82500<1:info hashfull 34
82641<1:info depth 12 seldepth 28 score cp 10 time 2141 nodes 1684642 pv g1f3 b8c6 b1c3 g8f6 d2d4 d7d5 f3e5 c8f5 e5c6 b7c6 c1f4 a8b8 b2b3
82641<1:info currmove b1c3 currmovenumber 2
82969<1:info currmove d2d4 currmovenumber 3
And now to Rybka 1.0 Beta.
The position of the info strings for every depth is:
depth
depth - score cp - time - nodes -
nps - pv
depth - time - nodes - nps
Remember Fruit:
depth
depth -
seldepth - score cp - time - nodes - pv
depth -
seldepth - time - nodes - nps
The only difference is Rybka don't give seldepth infos and has added nps in 2nd line.
And later the output changes to this:
currmove - currmovenumber 19
currmove - currmovenumber 20
depth (x)- time - nodes - nps
depth (x+1)
currmove - currmovenumber 1
depth (x+1) - score cp - time - nodes -
nps - pv -
currmove - currmovenumber 2
currmove - currmovenumber 3
Remember Fruit:
currmove - currmovenumber 19
currmove - currmovenumber 20
depth (x) -
seldepth - time - nodes nps
depth (+1)
currmove - currmovenumber 1
time - nodes - nps - cpuload
hashfull
depth (+1) -
seldepth - score cp - time - nodes - pv
currmove - currmovenumber 2
currmove - currmovenumber 3
Again nearly the same with some missing info strings in Rybka.
Code: Select all
181938<1:info depth 3
181938<1:info depth 3 score cp 7 time 1 nodes 235 nps 240640 pv b1c3
181938<1:info depth 3 time 1 nodes 328 nps 335872
181938<1:info depth 4
181938<1:info depth 4 score cp 3 time 1 nodes 491 nps 502784 pv b1c3
181938<1:info depth 4 time 1 nodes 826 nps 845824
181938<1:info depth 5
181938<1:info depth 5 score cp 8 time 1 nodes 1117 nps 1143808 pv b1c3 b8c6
181938<1:info depth 5 time 1 nodes 1352 nps 1384448
181938<1:info depth 6
181953<1:info depth 6 score cp 3 time 16 nodes 1913 nps 122432 pv b1c3 b8c6 g1f3
181953<1:info depth 6 time 16 nodes 4005 nps 256320
181953<1:info depth 7
181985<1:info depth 7 score cp 5 time 32 nodes 6216 nps 198912 pv b1c3 b8c6 g1f3 g8f6
182000<1:info depth 7 time 63 nodes 9565 nps 155469
182000<1:info depth 8
182032<1:info depth 8 score cp 7 time 79 nodes 14615 nps 189440 pv b1c3 b8c6 g1f3 g8f6 d2d4
182047<1:info depth 8 time 110 nodes 19009 nps 176956
182047<1:info depth 9
182266<1:info depth 9 score cp 5 time 329 nodes 47418 nps 147586 pv b1c3 g8f6 d2d4 d7d5 c1f4 c8f5
182328<1:info depth 9 time 391 nodes 57842 nps 151483
182328<1:info depth 10
182657<1:info depth 10 score cp 3 time 720 nodes 93647 nps 133186 pv b1c3 g8f6 d2d4 d7d5 g1f3 b8c6 d1d3
182657<1:info currmove b1a3 currmovenumber 2
182672<1:info currmove d2d3 currmovenumber 3
182688<1:info currmove d2d4 currmovenumber 4
182719<1:info currmove b2b3 currmovenumber 5
182735<1:info currmove a2a3 currmovenumber 6
182735<1:info currmove a2a4 currmovenumber 7
182750<1:info currmove b2b4 currmovenumber 8
182782<1:info currmove c2c4 currmovenumber 9
182782<1:info currmove c2c3 currmovenumber 10
182797<1:info currmove e2e4 currmovenumber 11
182813<1:info currmove e2e3 currmovenumber 12
182828<1:info currmove f2f4 currmovenumber 13
182828<1:info currmove f2f3 currmovenumber 14
182828<1:info currmove g2g4 currmovenumber 15
182844<1:info currmove g2g3 currmovenumber 16
182844<1:info currmove h2h4 currmovenumber 17
182875<1:info currmove h2h3 currmovenumber 18
182875<1:info currmove g1f3 currmovenumber 19
182875<1:info currmove g1h3 currmovenumber 20
182891<1:info depth 10 time 938 nodes 128456 nps 140233
182891<1:info depth 11
182891<1:info currmove b1c3 currmovenumber 1
184094<1:info depth 11 score cp 7 time 2157 nodes 268104 nps 127277 pv b1c3 g8f6 d2d4 d7d5 g1f3 b8c6 e2e3 d8d6
184110<1:info currmove b1a3 currmovenumber 2
184110<1:info currmove d2d3 currmovenumber 3
OK, at last an output of a completely different engine, if I remember right, it was Rybka 1.6.1, last private version before Rybka 1.0 Beta appeared.
Code: Select all
13859<1:info depth 1 seldepth 1
13859<1:info currmovenumber 1 currmove b1a3
13890<1:info depth 1 time 60 score cp 0 lowerbound nodes 1 nps 16 pv b1a3
13890<1:info currmovenumber 1 currmove b1a3
13890<1:info currmovenumber 2 currmove b1c3
13890<1:info depth 1 time 70 score cp 16 lowerbound nodes 3 nps 42 pv b1c3
13890<1:info currmovenumber 1 currmove b1c3
13906<1:info currmovenumber 2 currmove b1a3
13906<1:info currmovenumber 3 currmove g1f3
13906<1:info currmovenumber 4 currmove g1h3
13906<1:info currmovenumber 5 currmove a2a4
13906<1:info currmovenumber 6 currmove b2b4
13906<1:info currmovenumber 7 currmove c2c4
13906<1:info currmovenumber 8 currmove d2d4
13922<1:info currmovenumber 9 currmove e2e4
13922<1:info currmovenumber 10 currmove f2f4
13922<1:info currmovenumber 11 currmove g2g4
13922<1:info currmovenumber 12 currmove h2h4
13922<1:info currmovenumber 13 currmove a2a3
13922<1:info currmovenumber 14 currmove b2b3
13922<1:info currmovenumber 15 currmove c2c3
13937<1:info currmovenumber 16 currmove d2d3
13937<1:info currmovenumber 17 currmove e2e3
13937<1:info currmovenumber 18 currmove f2f3
13937<1:info currmovenumber 19 currmove g2g3
13953<1:info currmovenumber 20 currmove h2h3
13953<1:info nodes 23
13953<1:info depth 2 seldepth 2
13953<1:info currmovenumber 1 currmove b1c3
13953<1:info depth 2 time 90 score cp 16 lowerbound nodes 72 nps 800 pv b1c3
13953<1:info currmovenumber 1 currmove b1c3
13968<1:info currmovenumber 2 currmove b1a3
13968<1:info currmovenumber 3 currmove g1f3
13968<1:info currmovenumber 4 currmove d2d4
13968<1:info currmovenumber 5 currmove e2e4
13968<1:info currmovenumber 6 currmove g1h3
13968<1:info currmovenumber 7 currmove c2c4
13984<1:info currmovenumber 8 currmove f2f4
13984<1:info currmovenumber 9 currmove a2a3
13984<1:info currmovenumber 10 currmove c2c3
13984<1:info currmovenumber 11 currmove d2d3
13984<1:info currmovenumber 12 currmove e2e3
13984<1:info currmovenumber 13 currmove f2f3
14000<1:info currmovenumber 14 currmove h2h3
14000<1:info currmovenumber 15 currmove b2b3
14000<1:info currmovenumber 16 currmove h2h4
14000<1:info currmovenumber 17 currmove g2g3
14000<1:info currmovenumber 18 currmove a2a4
14015<1:info currmovenumber 19 currmove g2g4
14015<1:info currmovenumber 20 currmove b2b4
14015<1:info nodes 112
14015<1:info depth 3 seldepth 3
14015<1:info currmovenumber 1 currmove b1c3
14031<1:info currmovenumber 2 currmove g1f3
14031<1:info currmovenumber 3 currmove d2d4
14031<1:info currmovenumber 4 currmove e2e4
14031<1:info currmovenumber 5 currmove b1a3
14031<1:info currmovenumber 6 currmove g1h3
14047<1:info currmovenumber 7 currmove c2c4
14047<1:info currmovenumber 8 currmove f2f4
14047<1:info currmovenumber 9 currmove a2a3
14047<1:info currmovenumber 10 currmove c2c3
14062<1:info currmovenumber 11 currmove d2d3
14062<1:info currmovenumber 12 currmove e2e3
14062<1:info currmovenumber 13 currmove f2f3
14062<1:info currmovenumber 14 currmove h2h3
14062<1:info currmovenumber 15 currmove b2b3
14078<1:info currmovenumber 16 currmove h2h4
14078<1:info currmovenumber 17 currmove g2g3
14078<1:info currmovenumber 18 currmove a2a4
14078<1:info currmovenumber 19 currmove g2g4
14093<1:info currmovenumber 20 currmove b2b4
14093<1:info currmovenumber 1 currmove b1c3
14093<1:info currmovenumber 2 currmove g1f3
14093<1:info currmovenumber 3 currmove d2d4
14093<1:info currmovenumber 4 currmove e2e4
14109<1:info currmovenumber 5 currmove b1a3
14109<1:info currmovenumber 6 currmove g1h3
14109<1:info currmovenumber 7 currmove c2c4
14109<1:info currmovenumber 8 currmove f2f4
14125<1:info currmovenumber 9 currmove a2a3
14125<1:info currmovenumber 10 currmove c2c3
14125<1:info currmovenumber 11 currmove d2d3
14125<1:info currmovenumber 12 currmove e2e3
14125<1:info currmovenumber 13 currmove f2f3
14140<1:info currmovenumber 14 currmove h2h3
14140<1:info currmovenumber 15 currmove b2b3
14140<1:info currmovenumber 16 currmove h2h4
14140<1:info currmovenumber 17 currmove g2g3
14140<1:info currmovenumber 18 currmove a2a4
14140<1:info currmovenumber 19 currmove g2g4
14156<1:info currmovenumber 20 currmove b2b4
14156<1:info currmovenumber 1 currmove b1c3
14156<1:info depth 3 time 120 score cp 0 lowerbound nodes 500 nps 4166 pv b1c3 8c6 g1f3 g8f6
14156<1:info nodes 500
14156<1:info depth 4 seldepth 4
14172<1:info currmovenumber 1 currmove b1c3
14172<1:info depth 4 time 120 score cp 0 lowerbound nodes 541 nps 4508 pv b1c3 b8c6 g1f3 g8f6
14172<1:info currmovenumber 1 currmove b1c3
14172<1:info depth 4 time 120 score cp 8 lowerbound nodes 682 nps 5683 pv b1c3 b8c6 g1f3 g8f6 d2d4
14172<1:info currmovenumber 1 currmove b1c3
14187<1:info currmovenumber 2 currmove d2d4
14187<1:info currmovenumber 3 currmove e2e4
14187<1:info currmovenumber 4 currmove g1f3
14187<1:info currmovenumber 5 currmove b1a3
14187<1:info currmovenumber 6 currmove g1h3
14187<1:info currmovenumber 7 currmove c2c4
14203<1:info currmovenumber 8 currmove f2f4
14203<1:info currmovenumber 9 currmove a2a3
14203<1:info currmovenumber 10 currmove c2c3
14203<1:info currmovenumber 11 currmove d2d3
14203<1:info currmovenumber 12 currmove e2e3
14203<1:info currmovenumber 13 currmove f2f3
14218<1:info currmovenumber 14 currmove h2h3
14218<1:info currmovenumber 15 currmove b2b3
14218<1:info currmovenumber 16 currmove h2h4
14218<1:info currmovenumber 17 currmove g2g3
14218<1:info currmovenumber 18 currmove a2a4
14218<1:info currmovenumber 19 currmove g2g4
14234<1:info currmovenumber 20 currmove b2b4
14234<1:info currmovenumber 1 currmove b1c3
14234<1:info currmovenumber 2 currmove d2d4
14234<1:info currmovenumber 3 currmove e2e4
14250<1:info currmovenumber 4 currmove g1f3
14250<1:info currmovenumber 5 currmove b1a3
14250<1:info currmovenumber 6 currmove g1h3
14250<1:info currmovenumber 7 currmove c2c4
14250<1:info currmovenumber 8 currmove f2f4
14265<1:info currmovenumber 9 currmove a2a3
14265<1:info currmovenumber 10 currmove c2c3
14265<1:info currmovenumber 11 currmove d2d3
14265<1:info currmovenumber 12 currmove e2e3
14265<1:info currmovenumber 13 currmove f2f3
14265<1:info currmovenumber 14 currmove h2h3
14281<1:info currmovenumber 15 currmove b2b3
14281<1:info currmovenumber 16 currmove h2h4
14281<1:info currmovenumber 17 currmove g2g3
14281<1:info currmovenumber 18 currmove a2a4
14281<1:info currmovenumber 19 currmove g2g4
14297<1:info currmovenumber 20 currmove b2b4
14297<1:info nodes 925
14297<1:info depth 5 seldepth 5
14297<1:info currmovenumber 1 currmove b1c3
14312<1:info currmovenumber 2 currmove g1f3
14312<1:info currmovenumber 3 currmove d2d4
14312<1:info currmovenumber 4 currmove e2e4
14312<1:info currmovenumber 5 currmove b1a3
14328<1:info currmovenumber 6 currmove g1h3
14328<1:info currmovenumber 7 currmove c2c4
14328<1:info currmovenumber 8 currmove f2f4
14328<1:info currmovenumber 9 currmove a2a3
14343<1:info currmovenumber 10 currmove c2c3
14343<1:info currmovenumber 11 currmove d2d3
14343<1:info currmovenumber 12 currmove e2e3
14359<1:info currmovenumber 13 currmove f2f3
14359<1:info currmovenumber 14 currmove h2h3
14359<1:info currmovenumber 15 currmove b2b3
14359<1:info currmovenumber 16 currmove h2h4
14375<1:info currmovenumber 17 currmove g2g3
14375<1:info currmovenumber 18 currmove a2a4
14375<1:info currmovenumber 19 currmove g2g4
14375<1:info currmovenumber 20 currmove b2b4
14390<1:info currmovenumber 1 currmove b1c3
14390<1:info depth 5 time 150 score cp 0 lowerbound nodes 2930 nps 19533 pv b1c3 b8c6 g1f3 g8f6 d2d4 c6b4
14390<1:info nodes 2930
14390<1:info depth 6 seldepth 6
14406<1:info currmovenumber 1 currmove b1c3
14406<1:info depth 6 time 150 score cp 0 lowerbound nodes 3706 nps 24706 pv b1c3 b8c6 g1f3 g8f6 d2d4 c6b4
14406<1:info currmovenumber 1 currmove b1c3
14422<1:info depth 6 time 150 score cp 8 lowerbound nodes 4482 nps 29880 pv b13 b8c6 g1f3 g8f6 d2d4 c6b4 c3b5
14422<1:info currmovenumber 1 currmove b1c3
14422<1:info currmovenumber 2 currmove d2d4
14437<1:info currmovenumber 3 currmove g1f3
14437<1:info currmovenumber 4 currmove e2e4
14437<1:info currmovenumber 5 currmove e2e3
14437<1:info currmovenumber 6 currmove d2d3
14453<1:info currmovenumber 7 currmove b1a3
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14578<1:info nodes 8288
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[/quote]