Need help with analysis

Discussion of anything and everything relating to chess playing software and machines.

Moderator: Ras

LaurenceChen
Posts: 101
Joined: Fri Jun 09, 2006 4:58 am

Need help with analysis

Post by LaurenceChen »

[d] 2q1r2k/5R1p/pp1B2pN/2pnP3/3b3Q/3P4/1P4K1/8 w - - 0 2

What is White's winning plan?
Terry McCracken
Posts: 16465
Joined: Wed Aug 01, 2007 4:16 am
Location: Canada

Re: Need help with analysis

Post by Terry McCracken »

LaurenceChen wrote:[d] 2q1r2k/5R1p/pp1B2pN/2pnP3/3b3Q/3P4/1P4K1/8 w - - 0 2

What is White's winning plan?

22.Nf5!! wins. It's an interesting tactical fight that Black loses.
User avatar
beachknight
Posts: 3533
Joined: Tue Jan 09, 2007 8:33 pm
Location: Antalya, Turkey

Re: Need help with analysis

Post by beachknight »

LaurenceChen wrote:[d] 2q1r2k/5R1p/pp1B2pN/2pnP3/3b3Q/3P4/1P4K1/8 w - - 0 2

What is White's winning plan?
35: 2q1r2k/5R1p/pp1B2pN/2pnP3/3b3Q - Deep Fritz 11
2q1r2k/5R1p/pp1B2pN/2pnP3/3b3Q/3P4/1P4K1/8 w - - 0 1

Analysis by Deep Fritz 11:

2.Nf5 Nf4+ 3.Qxf4 gxf5 4.Qh6 Qa8+ 5.Kh2 Bg1+ 6.Kg3 Rg8+ 7.Kf4 Be3+ 8.Kxe3 Rg3+ 9.Kd2 Qg2+ 10.Kc3 Rxd3+ 11.Kxd3 Qe4+ 12.Kd2 Qd5+ 13.Ke3 Qxf7 14.e6 Qg7 15.Qf4 Kg8 16.e7
+- (1.77) Depth: 19/42 00:00:07 60190kN
2.Nf5 Nf4+ 3.Qxf4 gxf5 4.Qh6 Qa8+ 5.Kh2 Bg1+ 6.Kg3 Rg8+ 7.Kf4 Be3+ 8.Kxe3 Rg3+ 9.Kd2 Qg2+ 10.Kc3 Rxd3+ 11.Kxd3 Qe4+ 12.Kd2 Qd5+ 13.Ke3 Qxf7 14.e6 Qg7 15.Qf4 Kg8 16.e7
+- (1.77) Depth: 20/44 00:00:14 119mN
2.Nf5 Nf4+ 3.Qxf4 gxf5 4.Qh6 Qa8+ 5.Kh2 Bg1+ 6.Kg3 Rg8+ 7.Kf4 Be3+ 8.Kxe3 Rg3+ 9.Kd2 Qg2+ 10.Kc3 Rxd3+ 11.Kxd3 Qe4+ 12.Kd2 Qd5+ 13.Ke3 Qe4+
+/- (1.38) Depth: 21/46 00:00:27 225mN
2.Nf5 Nf4+ 3.Kh2 Nh5 4.Nxd4 cxd4 5.Qxd4 Qe6 6.Qc4 Ng7 7.Qxe6 Nxe6 8.Kg3 Nc5 9.Bxc5 bxc5 10.Kf4 Kg8 11.Rc7
= (0.01) Depth: 22/50 00:01:08 570mN
2.Nf5 Nf4+ 3.Kh2 Nh5 4.Nxd4 cxd4 5.Qxd4 Qe6 6.Qc4 Ng7 7.Qxe6 Nxe6 8.Kg3 Kg8 9.Ra7 a5 10.Ra6 Nc5 11.Bxc5
= (0.08) Depth: 23/44 00:03:32 1773mN, tb=1

(, chessengines20 16.12.2008)
hi, merhaba, hallo HT
User avatar
beachknight
Posts: 3533
Joined: Tue Jan 09, 2007 8:33 pm
Location: Antalya, Turkey

Re: Need help with analysis

Post by beachknight »

35: 2q1r2k/5R1p/pp1B2pN/2pnP3/3b3Q - Deep Fritz 11
2q1r2k/5R1p/pp1B2pN/2pnP3/3b3Q/3P4/1P4K1/8 w - - 0 1

Analysis by Deep Shredder 11 x64:

2.Nf5 Nf4+ 3.Qxf4 gxf5 4.Qh6 Qa8+ 5.Kh2 Bg1+ 6.Kg3 Rg8+ 7.Kf4 Be3+
+- (2.45) Depth: 16/47 00:00:55 175mN, bb=5560
2.Nf5 Nf4+
+- (2.21) Depth: 17/51 00:01:42 332mN, bb=5560
2.Nf5 Nf4+
+- (1.97) Depth: 18/55 00:03:33 705mN, bb=11003
2.Nf5 Nf4+ 3.Qxf4 gxf5 4.Qh6 Qa8+ 5.Kh2 Bg1+ 6.Kg3 Rg8+ 7.Kf4 Be3+
+- (1.96) Depth: 19/53 00:05:36 1115mN, bb=70571

(, chessengines20 16.12.2008)
hi, merhaba, hallo HT
User avatar
beachknight
Posts: 3533
Joined: Tue Jan 09, 2007 8:33 pm
Location: Antalya, Turkey

Re: Need help with analysis

Post by beachknight »

35: 2q1r2k/5R1p/pp1B2pN/2pnP3/3b3Q - Deep Fritz 11
2q1r2k/5R1p/pp1B2pN/2pnP3/3b3Q/3P4/1P4K1/8 w - - 0 1

Analysis by Deep Hiarcs 12:

2.Nf5 Nf4+ 3.Qxf4 gxf5 4.Qh6 Qc6+ 5.Kg3 Rg8+ 6.Kf4 Be3+ 7.Kxe3 Rg3+ 8.Kd2 Qg2+ 9.Kc3 Rxd3+ 10.Kxd3 Qe4+ 11.Kc3 Qb4+ 12.Kc2 Qe4+ 13.Kb3 Qb4+ 14.Kc2
+/- (0.88) Depth: 14/45 00:00:10 15875kN
2.Nf5 Nf4+ 3.Qxf4 gxf5 4.Qh6 Qc6+ 5.Kg3 Rg8+ 6.Kf4 Be3+ 7.Kxe3 Rg3+ 8.Kd2 Qg2+ 9.Kc3 Rxd3+ 10.Kxd3 Qe4+ 11.Kd2 Qg2+ 12.Kc1 Qf1+ 13.Kc2
+/- (0.88) Depth: 15/45 00:00:30 48262kN
2.Nf5 Nf4+ 3.Qxf4 gxf5 4.Qh6 Qc6+ 5.Kg3 Rg8+ 6.Kf4 Be3+ 7.Kxe3 Rg3+ 8.Kd2 Qg2+ 9.Kc3 Rxd3+ 10.Kxd3 Qe4+ 11.Kd2 Qg2+ 12.Kc1 Qf1+ 13.Kc2 Qc4+ 14.Kd2 Qd5+ 15.Ke3 Qd4+ 16.Ke2
+/- (0.88) Depth: 16/46 00:00:53 85795kN
2.Nf5 Nf4+ 3.Qxf4 gxf5 4.Qh6 Qc6+ 5.Kg3 Rg8+ 6.Kf4 Be3+ 7.Kxe3 Rg3+ 8.Kd2 Qg2+ 9.Kc3 Rxd3+ 10.Kxd3 Qe4+ 11.Kd2 Qg2+ 12.Kc1 Qf1+ 13.Kc2 Qc4+ 14.Kd2 Qd5+ 15.Ke3 Qd4+ 16.Ke2
+/- (0.88) Depth: 17/48 00:01:45 173mN
2.Nf5 Nf4+ 3.Qxf4 gxf5 4.Qh6 Qc6+ 5.Kg3 Rg8+ 6.Kf4 Be3+ 7.Kxe3 Rg3+ 8.Kd2 Qg2+ 9.Kc3 Rxd3+ 10.Kxd3 Qe4+ 11.Kd2 Qg2+ 12.Kc1 Qf1+ 13.Kc2 Qc4+ 14.Kd2 Qd5+ 15.Ke3 Qd4+ 16.Ke2
+/- (0.88) Depth: 18/52 00:03:24 338mN

(, chessengines20 16.12.2008)
hi, merhaba, hallo HT
User avatar
beachknight
Posts: 3533
Joined: Tue Jan 09, 2007 8:33 pm
Location: Antalya, Turkey

Re: Need help with analysis

Post by beachknight »

35: 2q1r2k/5R1p/pp1B2pN/2pnP3/3b3Q - Deep Fritz 11
2q1r2k/5R1p/pp1B2pN/2pnP3/3b3Q/3P4/1P4K1/8 w - - 0 1

Analysis by Naum 3.1:

2.Nf5 Nf4+ 3.Qxf4 gxf5 4.Qh6 Qc6+ 5.Kg3 Rg8+ 6.Kf4 Be3+ 7.Kxe3 Rg3+ 8.Kd2 Qg2+ 9.Kc3 Rxd3+ 10.Kxd3 Qe4+ 11.Kd2
+- (1.57) Depth: 19/52 00:00:18 127mN
2.Nf5 Nf4+ 3.Qxf4 gxf5 4.Qh6 Qc6+ 5.Kg3 Rg8+ 6.Kf4 Be3+ 7.Kxe3 Rg3+ 8.Kd2 Qg2+ 9.Kc3 Rxd3+ 10.Kxd3 Qe4+ 11.Kd2 Qg2+
+- (1.57) Depth: 20/50 00:00:31 225mN
2.Nf5 Nf4+ 3.Qxf4 gxf5 4.Qh6 Qc6+ 5.Kg3 Rg8+ 6.Kf4 Be3+ 7.Kxe3 Rg3+ 8.Kd2 Qg2+ 9.Kc3 Rxd3+ 10.Kxd3 Qe4+ 11.Kd2 Qg2+ 12.Kc1
+- (1.57) Depth: 21/56 00:00:57 420mN, tb=2
2.Nf5 Nf4+ 3.Qxf4 gxf5 4.Qh6 Qc6+ 5.Kg3 Rg8+ 6.Kf4 Be3+ 7.Kxe3 Rg3+ 8.Kd2 Qg2+ 9.Kc3 Rxd3+ 10.Kxd3 Qe4+ 11.Kd2 Qg2+ 12.Kc1 Qf1+
+- (1.57) Depth: 22/55 00:01:43 760mN, tb=22
2.Nf5 Nf4+ 3.Qxf4 gxf5 4.Qh6 Qc6+ 5.Kg3 Rg8+ 6.Kf4 Be3+ 7.Kxe3 Rg3+ 8.Kd2 Qg2+ 9.Kc3 Rxd3+ 10.Kxd3 Qe4+ 11.Kd2 Qg2+ 12.Kc1 Qf1+ 13.Kc2
+- (1.57) Depth: 23/57 00:03:09 1399mN, tb=104

(, chessengines20 16.12.2008)
hi, merhaba, hallo HT
User avatar
beachknight
Posts: 3533
Joined: Tue Jan 09, 2007 8:33 pm
Location: Antalya, Turkey

Re: Need help with analysis

Post by beachknight »

35: 2q1r2k/5R1p/pp1B2pN/2pnP3/3b3Q - Deep Fritz 11
2q1r2k/5R1p/pp1B2pN/2pnP3/3b3Q/3P4/1P4K1/8 w - - 0 1

Analysis by Rybka 3:

2.Nf5 Nf4+[] 3.Qxf4 gxf5[] 4.Qh6 Qc6+ 5.Kg3[] Rg8+[] 6.Kf4[] Be3+[] 7.Kxe3[] Rg3+[] 8.Kd2[] Qg2+ 9.Kc3[] Rxd3+[] 10.Kxd3[] Qe4+ 11.Kd2 Qg2+ 12.Kc1 Qf1+ 13.Kc2
= (0.00) Depth: 15 00:00:20 4828kN
2.Nf5 Nf4+[] 3.Qxf4 gxf5[] 4.Qh6 Qc6+ 5.Kg3[] Rg8+[] 6.Kf4[] Be3+[] 7.Kxe3[] Rg3+[] 8.Kd2[] Qg2+ 9.Kc3[] Rxd3+[] 10.Kxd3[] Qe4+ 11.Kd2 Qg2+ 12.Kc1 Qf1+ 13.Kc2
= (0.00) Depth: 16 00:00:32 7950kN
2.Nf5 Nf4+[] 3.Qxf4 gxf5[] 4.Qh6 Qc6+[] 5.Kg3[] Rg8+[] 6.Kf4[] Be3+[] 7.Kxe3[] Rg3+[] 8.Kd2[] Qg2+ 9.Kc3[] Rxd3+[] 10.Kxd3[] Qe4+ 11.Kd2 Qg2+ 12.Kc1 Qf1+[] 13.Kc2
= (0.00) Depth: 17 00:01:07 16408kN
2.Nf5 Nf4+[] 3.Qxf4 gxf5[] 4.Qh6 Qc6+[] 5.Kg3[] Rg8+[] 6.Kf4[] Be3+[] 7.Kxe3[] Rg3+[] 8.Kd2[] Qg2+ 9.Kc3[] Rxd3+[] 10.Kxd3[] Qe4+ 11.Kd2 Qg2+ 12.Kc1 Qf1+[] 13.Kc2
= (0.00) Depth: 18 00:01:59 29700kN
2.Nf5 Nf4+[] 3.Qxf4 gxf5[] 4.Qh6 Qc6+[] 5.Kg3[] Rg8+[] 6.Kf4[] Be3+[] 7.Kxe3[] Rg3+[] 8.Kd2[] Qg2+ 9.Kc3[] Rxd3+[] 10.Kxd3[] Qe4+ 11.Kd2 Qg2+ 12.Kc1 Qf1+[] 13.Kc2
= (0.00) Depth: 19 00:03:53 57638kN

(, chessengines20 16.12.2008)
hi, merhaba, hallo HT
User avatar
beachknight
Posts: 3533
Joined: Tue Jan 09, 2007 8:33 pm
Location: Antalya, Turkey

Re: Need help with analysis

Post by beachknight »

35: 2q1r2k/5R1p/pp1B2pN/2pnP3/3b3Q - Deep Fritz 11
2q1r2k/5R1p/pp1B2pN/2pnP3/3b3Q/3P4/1P4K1/8 w - - 0 1

Analysis by Zappa Mexico II:

2.Nf5 Nf4+ 3.Qxf4 gxf5 4.Qh6 Qc6+ 5.Kg3 Rg8+ 6.Kf4 Be3+ 7.Kxe3 Rg3+ 8.Kd2 Qg2+ 9.Kc3 Rxd3+ 10.Kxd3 Qe4+ 11.Kd2 Qg2+ 12.Kc1 Qf1+ 13.Kc2 Qc4+ 14.Kd2 Qd5+ 15.Ke1 Qe4+
= (0.00) Depth: 15/49 00:00:32 63383kN
2.Nf5 Nf4+ 3.Qxf4 gxf5 4.Qh6 Qc6+ 5.Kg3 Rg8+ 6.Kf4 Be3+ 7.Kxe3 Rg3+ 8.Kd2 Qg2+ 9.Kc3 Rxd3+ 10.Kxd3 Qe4+ 11.Kd2 Qg2+ 12.Kc1 Qf1+ 13.Kc2 Qc4+ 14.Kd2 Qd5+ 15.Ke1 Qe4+
= (0.00) Depth: 15/49 00:01:18 156mN
2.Nf5 Nf4+ 3.Qxf4 gxf5 4.Qh6 Qc6+ 5.Kg3 Rg8+ 6.Kf4 Be3+ 7.Kxe3 Rg3+ 8.Kd2 Qg2+ 9.Kc3 Rxd3+ 10.Kxd3 Qe4+ 11.Kd2 Qg2+ 12.Kc1 Qf1+ 13.Kc2 Qc4+ 14.Kd2 Qd5+ 15.Ke1 Qe4+
= (0.00) Depth: 16/51 00:01:55 223mN
2.Nf5 Nf4+ 3.Qxf4 gxf5 4.Qh6 Qc6+ 5.Kg3 Rg8+ 6.Kf4 Be3+ 7.Kxe3 Rg3+ 8.Kd2 Qg2+ 9.Kc3 Rxd3+ 10.Kxd3 Qe4+ 11.Kd2 Qg2+ 12.Kc1 Qf1+ 13.Kc2 Qc4+ 14.Kd2 Qd5+ 15.Ke1 Qe4+
= (0.00) Depth: 16/51 00:02:24 276mN
2.Nf5 Nf4+ 3.Qxf4 gxf5 4.Qh6 Qc6+ 5.Kg3 Rg8+ 6.Kf4 Be3+ 7.Kxe3 Rg3+ 8.Kd2 Qg2+ 9.Kc3 Rxd3+ 10.Kxd3 Qe4+ 11.Kd2 Qg2+ 12.Kc1 Qf1+ 13.Kc2 Qc4+ 14.Kd2 Qd5+ 15.Ke1 Qe4+
= (0.00) Depth: 17/53 00:03:05 347mN

(, chessengines20 16.12.2008)
hi, merhaba, hallo HT
User avatar
beachknight
Posts: 3533
Joined: Tue Jan 09, 2007 8:33 pm
Location: Antalya, Turkey

Re: Need help with analysis

Post by beachknight »

35: 2q1r2k/5R1p/pp1B2pN/2pnP3/3b3Q - Deep Fritz 11
2q1r2k/5R1p/pp1B2pN/2pnP3/3b3Q/3P4/1P4K1/8 w - - 0 1

Analysis by Glaurung 2.1 (JA):

2.Nf5 Nf4+ 3.Qxf4 gxf5 4.Qh6 Qc6+ 5.Kg3 Rg8+ 6.Kf4 Be3+ 7.Kxe3 Rg3+ 8.Kd2 Qg2+ 9.Kc3 Rxd3+ 10.Kxd3 Qd5+ 11.Ke2 Qxf7 12.Kf2 Qg7 13.Qh4 f4 14.Qd8+ Qg8 15.Qxb6 Qg3+ 16.Ke2 Qg2+ 17.Kd3 Qd5+ 18.Kc2 Qe4+ 19.Kd2 Qe3+ 20.Kc2
+- (3.01) Depth: 19 00:00:40 173mN
2.Nf5 Nf4+ 3.Qxf4 gxf5 4.Qh6 Qc6+ 5.Kg3 Rg8+ 6.Kf4 Be3+ 7.Kxe3 Rg3+ 8.Kd2 Qg2+ 9.Kc3 Rxd3+ 10.Kxd3 Qd5+ 11.Ke2 Qxf7 12.Kf2 Qg7 13.Qh4 f4 14.Qd8+ Qg8 15.Qxb6 Qg3+ 16.Ke2 Qg2+ 17.Kd3 Qd5+ 18.Kc2 Qe4+ 19.Kd2 Qe3+ 20.Kd1
+- (2.92) Depth: 20 00:01:23 369mN
2.Nf5 Nf4+ 3.Qxf4 gxf5 4.Qh6 Qc6+ 5.Kg3 Rg8+ 6.Kf4 Be3+ 7.Kxe3 Rg3+ 8.Kd2 Rxd3+ 9.Kc2 Qa4+ 10.Kxd3 Qd4+ 11.Ke2 Qc4+ 12.Kf2 Qc2+ 13.Kg3 Qd3+ 14.Kh4 Qd4+ 15.Kg5 Qe3+ 16.Kh5 Qf3+ 17.Kg5 Qe3+
= (0.00) Depth: 21 00:03:27 918mN

(, chessengines20 16.12.2008)
hi, merhaba, hallo HT
User avatar
michiguel
Posts: 6401
Joined: Thu Mar 09, 2006 8:30 pm
Location: Chicago, Illinois, USA

Re: Need help with analysis

Post by michiguel »

Terry McCracken wrote:
LaurenceChen wrote:[d] 2q1r2k/5R1p/pp1B2pN/2pnP3/3b3Q/3P4/1P4K1/8 w - - 0 2

What is White's winning plan?

22.Nf5!! wins. It's an interesting tactical fight that Black loses.
I am not sure, it looks like black has some chances to draw with perpetual. After Nf4+ Qxf4 gxf5 with the idea of Rg8+ and Qa8.

1. Rc7 looks interesting to keep the fire going. I do not think the engines could see the end of it from the starting position.

I thougt Ng8 wins but black has Qg4+! 2. Qxg4 Ne3+

Miguel