Mate in 10....?

[rightrook]

[D]2r1k2B/1p3p2/p3p1p1/1b6/8/6QN/PPq3PP/4RR1K w - - 0 1


Junior 5...takes 50 seconds to find...

Rxf7...!

I think this is about a mate in 10...not sure...

[Karmazen & Oliver]

are you sure ? in 10 ? ..

rybka, tiger and junior 8 not see that... win white OK. +15 in 16 plys. but ++ ? sure ?

bye, from spain OLIVER

[tjfroh]

Mr. Basham,

It is a Mate in 13. This on my Core Duo x2 E6850 Intel with 818 MB Hash tables using the 64bit Rybka 2.3 LK. The machine picked the winning move in about 20 seconds.

TJ


[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "Rybka 2.3 LK"]
[Black
[Result "0-1"]
[SetUp "1"]
[FEN "2r1k2B/1p3p2/p3p1p1/1b6/8/6QN/PPq3PP/4RR1K w - - 0 1"]
[PlyCount "25"]

1. Rxf7 {[%emt 0:01:05]} Bc6 {[%emt 0:00:00]} 2. Rf2 {[%emt 0:00:00]} Kd7 {
[%emt 0:00:00]} 3. Rxc2 {[%emt 0:00:00]} Rxh8 {[%emt 0:00:00]} 4. Rd1+ {
[%emt 0:00:00]} Kc8 {[%emt 0:00:00]} 5. Qd6 {[%emt 0:00:00]} a5 {[%emt 0:00:00]
} 6. Qxe6+ {[%emt 0:00:00]} Kc7 {[%emt 0:00:00]} 7. Rd7+ {[%emt 0:00:00]} Kb6 {
[%emt 0:00:00]} 8. Rxc6+ {[%emt 0:00:00]} bxc6 {[%emt 0:00:00]} 9. Qe3+ {
[%emt 0:00:00]} Ka6 {[%emt 0:00:00]} 10. Ra7+ {[%emt 0:00:00]} Kb5 {
[%emt 0:00:00]} 11. Rb7+ {[%emt 0:00:00]} Kc4 {[%emt 0:00:00]} 12. b3+ {
[%emt 0:00:00]} Kd5 {[%emt 0:00:00]} 13. Rd7# {[%emt 0:00:00]} 0-1

[D]2r1k2B/1p3p2/p3p1p1/1b6/8/6QN/PPq3PP/4RR1K w - - 0 1


Junior 5...takes 50 seconds to find...

Rxf7...!

I think this is about a mate in 10...not sure...

[rightrook]

Thanks brother...

That's what I wanted...a "sure word of prophecy"...!

That sounds correct to me...

I recoreded your solution and will check it out today...

regards...

God bless...

Robert

[Anabolic Karpov]

Yes, this is mate in 10, try

1.Rxf7 Bc6 2.Ng5 Bd5 3.Bf6 Qc5 4.Qh3 Bxg2+ 5.Qxg2 Qd6 6.Qxb7 Qc6+ 7.Qxc6+ Rxc6 8.Rd1 Rc8 9.Rh7 Kf8 10. Rh8#

refutations please.
AK

[premio53]

Got it mixed up with the other mate.

[Karmazen & Oliver]

why some modules NOT ?

why it´s necesary REset the analisys and in this mode use the previus hast-table use...

In the first evaluation rybka say:

[Event "Blitz:4'+2""]
[Site "PRIVADA"]
[Date "????.??.??"]
[Round "?"]
[White "Chess Tiger 14.0"]
[Black "1977, PC-820D-OLI."]
[Result "*"]
[SetUp "1"]
[FEN "2r1k2B/1p3p2/p3p1p1/1b6/8/6QN/PPq3PP/4RR1K w - - 0 1"]
[PlyCount "19"]
[TimeControl "240+2"]

{Rybka 2.2n2 mp 32-bit :} 1. Rxf7 ({Rybka 2.2n2 mp 32-bit :} 1. Rxf7 Bc6 2. Rf2
Qc5 3. Rxe6+ Kd7 4. Rd2+ Bd5 5. Qe5 Rd8 6. Rxd5+ Qxd5 7. Qxd5+ Kc8 8. Qc5+ {
#13/20}) ({Rybka 2.2n2 mp 32-bit :} 1. Rxf7 Bc6 2. Rh7 Bxg2+ 3. Qxg2 Qxg2+ {
#11/20}) ({Chess Tiger 2007 AH:} 1. Rxf7 Bc6 2. Rf2 Bd5 3. Rxc2 Rxc2 4. Qxg6+
Kd7 5. Qxc2 b5 6. Qh7+ Kc8 7. Rc1+ Bc4 8. b3 {28.20/20}) 1... Bc6 2. Ng5 Bxg2+
3. Qxg2 Qxg2+ 4. Kxg2 Rc2+ 5. Kf3 Rc6 6. Bf6 Rd6 7. Rg7 Rd3+ 8. Re3 Rxe3+ 9.
Kxe3 a5 10. Nxe6 {#11/21} *



but.... in the secondary lines.. you can see that if I stop the engine and re start again... engine find a # more fast and in < plys... ???

some engines not see that ++... and others have errors and see # in 8 or 9 ... dificult position.

chess tiger 2007 in 512 MB see too...



and need a lot of RAM.. I have 2gb and a DUAL intel 820D running in 3,5 Ghz...

[Tony Thomas]

Oliver, a little problem with the picture my friend. You claim that you are using Chess Tiger 14.0, but the picture says that you are using Chess Tiger 2007.

[bnst]

TogaII 1.3.4 EGBB (DM3):
5/24 00:04 12.302 0 +7,74 Rf2 Qd3 Qg5 Rc2 Bg7 Rxf2 Nxf2
6/24 00:04 25.368 0 +7,99 Rf2 Qd3 Rf3 Qd2 Ng5 Rc7
7/32 00:04 59.878 0 +8,29 Rf2 Qd3 Rf3 Qd2 Ng5 Rc7 Nxf7 Rxf7 Rxe6+ Kf8 Rxf7+ Kxf7 Qxg6+ Kf8
8/32+ 00:05 294.083 0 +9,20 Rf2 Qd3 Qe5 Bc4 Ng5 Bxa2 Rxf7 Bd5
9/35+ 00:05 517.109 360.000 +9,64 Rf2 Qd3 Qe5 Bc4 Ng5 Bxa2 Rxf7 Qd5 Qf4
10/37+ 00:07 1.174.078 390.000 +10,14 Rf2 Qd3 Qe5 Qd7 Qg7 f5 Qxg6+ Kd8 Ng5 Bc4 Nxe6+ Bxe6 Qf6+ Kc7 Rxe6
11/37 00:10 2.260.812 394.000 +10,21 Rf2 Qd3 Qe5 Bc4 b3 Bd5 Nf4 Bxg2+ Rxg2 Qb5 Nd5 Qc6 Qg5
11/49+ 00:48 18.038.923 409.622 +10,92 Rf6 Bd7 Ng5 Qc7 Qf2 Qd6 Nxf7 Qb4 Rxg6 Qf8 Rg7
12/52+ 01:46 42.581.035 418.788 +11,46 Rf6 Bd7 Ng5 Qc7 Qf2 Qd6 Nxf7 Qe7 Qb6 Bc6 Rexe6 Qxe6 Nd6+ Qxd6 Rxd6
13/68+ 05:40 141.539.039 420.778 +12,17 Rf6 Bc6 Rexe6+ fxe6 Rxe6+ Kf8 Qd6+ Kg8 Rxg6+ Qxg6 Qxg6+ Kxh8 Ng5 Rc7 Qf6+ Kg8 Qd8+ Kg7 Qxc7+ Kf6 h4 Kf5 Qf7+ Ke5 Qe7+ Kf5
14/68 10:05 255.897.827 425.740 +12,21 Rf6 Bc6 Rexe6+ fxe6 Rxe6+ Kf8 Qd6+ Kg8 Rxg6+ Qxg6 Qxg6+ Kxh8 Ng5 Rc7 Qf6+ Kg8 Qd8+ Kg7 Qxc7+ Kg6 Nf7 Kf6 Ne5
14/70+ 1:02:33 1.574.360.716 419.899 +M10 Rxf7 Bc6 Ng5 Bd5 Bf6 Qc5 Rh7 Qf8 Qe5 Rc7 Qxc7 Bxg2+ Kxg2 Qxf6 Rxe6+ Kf8 Rxf6+ Kg8 Qc4+

Regards
Andreas

[Chris Taylor]

Hi

Left this on whilst I went shopping...

[d]2r1k2B/1p3p2/p3p1p1/1b6/8/6QN/PPq3PP/4RR1K w - - 0 1

Analysis by Toga II 1.3x4:AMD 4600 t=1

1.Rf2 Qd3 2.Qe5 Qd7 3.Qg7 f5 4.Qxg6+ Kd8 5.Ng5 Bc4 6.Nxe6+ Bxe6 7.Qf6+ Kc7 8.Rxe6
+- (9.94) Depth: 9/26 00:00:00
+- (10.14) Depth: 10/42 00:00:00 842kN
1.Rxf7 Bc6 2.Ng5 Bd5 3.Bf6 Qc5 4.Rh7 Qf8 5.Qe5 Rc7 6.Qxc7 Bxg2+ 7.Kxg2 Qxf6 8.Rxe6+ Kf8 9.Rxf6+ Kg8 10.Qc8#
+- (14.85) Depth: 10/64 00:00:22 20873kN
+- (#10) Depth: 18/72 02:22:20 7452mN

(Taylor, Notts 26.10.2007)

Chris