Test Position
Posted: Sun Apr 08, 2007 8:31 pm
[D]3r1rkn/ppq1bpp1/4p2p/2p4Q/2BPN3/P1P1P2R/1P4PP/5RK1 w - - 0 1
Kasimdzhanov-Arkell (Vlissingen) 2003
Kasimdzhanov-Arkell (Vlissingen) 2003
1. Nf6+!...Bxf6 2. Rxf6...gf 3. Qxh6 and Black is mated.Marc MP wrote:[D]3r1rkn/ppq1bpp1/4p2p/2p4Q/2BPN3/P1P1P2R/1P4PP/5RK1 w - - 0 1
Kasimdzhanov-Arkell (Vlissingen) 2003
No it isn't, but White retains the winning initiative, Black will go down kicking and screamingMarc MP wrote:Quite good... 2...gf6 is not forced though.
Code: Select all
Time Depth Score Positions Moves
0:00 1/3 0.09 3555 1.Rg3 cxd4 2.Qg4
0:00 1/3 0.90 3910 1.dxc5 Qc6 2.Qg4 Ng6
0:00 1/4 0.99 9517 1.dxc5 Qc6 2.Qg4 Ng6 3.Rh5
0:00 1/5 0.93 26055 1.dxc5 Qc6 2.Qg4 Ng6 3.Rh5 Rfe8
0:00 1/5 2.25 115554 1.Rf6 Ng6 2.Rxg6 fxg6 3.Qxg6 Kh8
4.Bxe6
0:01 1/6 3.62 149782 1.Rf6 Ng6 2.Rxg6 fxg6 3.Qxg6 Rd6
4.Nxd6 Bxd6 5.Bxe6+ Kh8
0:01 1/7 3.67 235569 1.Rf6 Ng6 2.Rxg6 fxg6 3.Qxg6 Rd6
4.Nxd6 Bxd6 5.Bxe6+ Kh8 6.Bf5
0:03 1/8 4.62 565380 1.Rf6 Ng6 2.Rxg6 fxg6 3.Qxg6 Rf6
4.Nxf6+ Bxf6 5.Bxe6+ Kf8 6.Rxh6
gxh6 7.Qxf6+ Ke8 8.Qxh6 cxd4 9.exd4
0:16 1/9 6.65 3143486 1.Rf6 Ng6 2.Bxe6 fxe6 3.Rxg6 Rf5
4.Qxh6 Bf8 5.Ng5 Rxg5 6.Rxg5 Qb6
7.Qh7+ Kf7
0:31 1/10 7.43 5692910 1.Rf6 Ng6 2.Bxe6 fxe6 3.Rxg6 Bg5
4.Rxg5 Kh8 5.Rxc5 Qb6 6.Qe5
1:11 1/11 7.57 12814760 1.Rf6 Ng6 2.Bxe6 fxe6 3.Rxg6 Rf5
4.Qxh6 Bf8 5.Qh7+ Kf7 6.g4 Qc6
7.gxf5 Qxe4 8.fxe6+ Ke8 9.Rxg7
The mainline of the combination is quite easy, and have used similar themes in blitz and bullet games.JVMerlino wrote:CM9_R1 finds Rf6 in less than one second on a P4-2.4:
jmCode: Select all
Time Depth Score Positions Moves 0:00 1/3 0.09 3555 1.Rg3 cxd4 2.Qg4 0:00 1/3 0.90 3910 1.dxc5 Qc6 2.Qg4 Ng6 0:00 1/4 0.99 9517 1.dxc5 Qc6 2.Qg4 Ng6 3.Rh5 0:00 1/5 0.93 26055 1.dxc5 Qc6 2.Qg4 Ng6 3.Rh5 Rfe8 0:00 1/5 2.25 115554 1.Rf6 Ng6 2.Rxg6 fxg6 3.Qxg6 Kh8 4.Bxe6 0:01 1/6 3.62 149782 1.Rf6 Ng6 2.Rxg6 fxg6 3.Qxg6 Rd6 4.Nxd6 Bxd6 5.Bxe6+ Kh8 0:01 1/7 3.67 235569 1.Rf6 Ng6 2.Rxg6 fxg6 3.Qxg6 Rd6 4.Nxd6 Bxd6 5.Bxe6+ Kh8 6.Bf5 0:03 1/8 4.62 565380 1.Rf6 Ng6 2.Rxg6 fxg6 3.Qxg6 Rf6 4.Nxf6+ Bxf6 5.Bxe6+ Kf8 6.Rxh6 gxh6 7.Qxf6+ Ke8 8.Qxh6 cxd4 9.exd4 0:16 1/9 6.65 3143486 1.Rf6 Ng6 2.Bxe6 fxe6 3.Rxg6 Rf5 4.Qxh6 Bf8 5.Ng5 Rxg5 6.Rxg5 Qb6 7.Qh7+ Kf7 0:31 1/10 7.43 5692910 1.Rf6 Ng6 2.Bxe6 fxe6 3.Rxg6 Bg5 4.Rxg5 Kh8 5.Rxc5 Qb6 6.Qe5 1:11 1/11 7.57 12814760 1.Rf6 Ng6 2.Bxe6 fxe6 3.Rxg6 Rf5 4.Qxh6 Bf8 5.Qh7+ Kf7 6.g4 Qc6 7.gxf5 Qxe4 8.fxe6+ Ke8 9.Rxg7
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+1.78 5/1 00:00 1. Rf6 Rfe8
+1.77 7/1 00:01 1. Rf6
+4.07 9/1 00:01 1. Rf6 Ng6 2. Rxg6 fxg6 3. Qxg6 Rf6 4. Nxf6 Bxf6
5. Bxe6 Kf8 6. Rf3 Ke7 7. Bc4
+6.79 12/1 00:46 1. Rf6 Ng6 2. Bxe6 Kh8 3. Rxf7 Nh4 4. Rxh4 Rxf7
5. Qxf7 Rf8 6. Rxh6 gxh6 7. Qg6
+7.35 15/1 04:36 1. Rf6 Ng6 2. Bxe6 fxe6 3. Rxg6 Rf5 4. Qxh6 Qe5
5. Nxc5 Kf7 6. Rxg7 Qxg7 7. Qxe6 Ke8 8. Qxf5 Bxc5
9. Rh7 Qxh7 10. Qxh7
Code: Select all
+8.92 16/34 1. Rf6 Ng6 2. Bxe6 fxe6 3. Rxg6 Rf5 4. Qxh6 Qe5
5. Qh7 Kf7 6. g4 cxd4 7. gxf5 exf5 8. Ng5 Bxg5
9. Rxg5 Ke6 10. Rxg7 Kd5 11. cxd4 Qe4 12. Rd7 Rxd7
13. Qxd7 Kc4
+2.50 16/34 1. Nf6 Bxf6 2. Rxf6 Ng6 3. Bxe6 Nf4 4. exf4 fxe6
5. Rxh6 gxh6 6. Qxh6 Qg7 7. Qxe6 Rf7 8. Rg3 Qxg3
9. hxg3 cxd4 10. cxd4 Rxd4 11. Qe8 Rf8 12. Qg6 Kh8
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+2.14 9/1 00:05 1. Rf6 Rfe8 2. Rxh6 gxh6 3. Qxh6 Ng6 4. Bxe6
+4.43 14/1 01:02 1. Rf6 Ng6 2. Bxe6 Kh8 3. Rxf7 Rxf7 4. Qxg6
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+1.39 11/41 02:11 1. Nf6 Bxf6 2. Rxf6 Ng6 3. Bxe6 Nf4 4. Rxf4 fxe6
5. Rxf8 Rxf8 6. Qxc5 Qxc5 7. dxc5 Rf5 8. b4 Rd5
9. Rf3 Rd2 10. Rf1
+1.65 12/1 04:31 1. Rf6 Ng6 2. Rxg6 fxg6 3. Qxg6 b6 4. Bxe6 Kh8
5. Bf5 cxd4 6. exd4 Rxd4 7. cxd4 Qc1 8. Kf2 Qxb2
9. Kf3 Qxa3 10. Ke2 Qb2 11. Kf1 Qxd4
Hi John,JVMerlino wrote:CM9_R1 finds Rf6 in less than one second on a P4-2.4:
jmCode: Select all
Time Depth Score Positions Moves 0:00 1/3 0.09 3555 1.Rg3 cxd4 2.Qg4 0:00 1/3 0.90 3910 1.dxc5 Qc6 2.Qg4 Ng6 0:00 1/4 0.99 9517 1.dxc5 Qc6 2.Qg4 Ng6 3.Rh5 0:00 1/5 0.93 26055 1.dxc5 Qc6 2.Qg4 Ng6 3.Rh5 Rfe8 0:00 1/5 2.25 115554 1.Rf6 Ng6 2.Rxg6 fxg6 3.Qxg6 Kh8 4.Bxe6 0:01 1/6 3.62 149782 1.Rf6 Ng6 2.Rxg6 fxg6 3.Qxg6 Rd6 4.Nxd6 Bxd6 5.Bxe6+ Kh8 0:01 1/7 3.67 235569 1.Rf6 Ng6 2.Rxg6 fxg6 3.Qxg6 Rd6 4.Nxd6 Bxd6 5.Bxe6+ Kh8 6.Bf5 0:03 1/8 4.62 565380 1.Rf6 Ng6 2.Rxg6 fxg6 3.Qxg6 Rf6 4.Nxf6+ Bxf6 5.Bxe6+ Kf8 6.Rxh6 gxh6 7.Qxf6+ Ke8 8.Qxh6 cxd4 9.exd4 0:16 1/9 6.65 3143486 1.Rf6 Ng6 2.Bxe6 fxe6 3.Rxg6 Rf5 4.Qxh6 Bf8 5.Ng5 Rxg5 6.Rxg5 Qb6 7.Qh7+ Kf7 0:31 1/10 7.43 5692910 1.Rf6 Ng6 2.Bxe6 fxe6 3.Rxg6 Bg5 4.Rxg5 Kh8 5.Rxc5 Qb6 6.Qe5 1:11 1/11 7.57 12814760 1.Rf6 Ng6 2.Bxe6 fxe6 3.Rxg6 Rf5 4.Qxh6 Bf8 5.Qh7+ Kf7 6.g4 Qc6 7.gxf5 Qxe4 8.fxe6+ Ke8 9.Rxg7
I ran TogaII 1.2.1a and 1.3x4 to compare them : 1.3x4 is 3 times faster here :rafowell wrote:...
Toga II 1.2 beta 2a takes a while to find Rf6, but settles on it, too.
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+1.39 11/41 02:11 1. Nf6 Bxf6 2. Rxf6 Ng6 3. Bxe6 Nf4 4. Rxf4 fxe6 5. Rxf8 Rxf8 6. Qxc5 Qxc5 7. dxc5 Rf5 8. b4 Rd5 9. Rf3 Rd2 10. Rf1 +1.65 12/1 04:31 1. Rf6 Ng6 2. Rxg6 fxg6 3. Qxg6 b6 4. Bxe6 Kh8 5. Bf5 cxd4 6. exd4 Rxd4 7. cxd4 Qc1 8. Kf2 Qxb2 9. Kf3 Qxa3 10. Ke2 Qb2 11. Kf1 Qxd4