3 new hard positions from George Tsavdaris

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

Moderator: Ras

Vinvin
Posts: 5287
Joined: Thu Mar 09, 2006 9:40 am
Full name: Vincent Lejeune

3 new hard positions from George Tsavdaris

Post by Vinvin »

[d]r1b1qr1k/2p3pp/4p3/1pb1PpN1/pn3N1P/8/PPP1QPP1/2KR3R w - - bm Rd8;
[d]r1b1qr1k/2p3pp/4p3/1pb1PpN1/pn3N1P/P7/1PP1QPP1/2KR3R w - - bm Rd8;
[d]3nn3/2p2p1k/1p1pp1p1/p2B3p/r2B2N1/4P2N/3PKPP1/6q1 w - - bm Ng5;

30 min (1800 sec) per position with Stockfish_180424 on an i7-6*4GHz.

Code: Select all

1) Rd1-d8 Rd1-d8 * 1099 Seconds 
1) Rd1-d8 Rd1-d8 * 1591 Seconds 
1) Rd1-d8 Rd1-d8 * 561 Seconds 
1) Rd1-d8 Rd1-d8 * 646 Seconds

Code: Select all

2) Rd1-d8 Rd1-d8 * 172 Seconds 
2) Rd1-d8 Rd1-d8 * 273 Seconds 
2) Rd1-d8 Rd1-d8 * 355 Seconds 
2) Rd1-d8 Rd1-d8 * 474 Seconds

Code: Select all

3) Nh3-g5 Nh3-g5 * 1324 Seconds 
3) Nh3-g5 Nh3-g5 * 55 Seconds
3) Nh3-g5 Nh3xg1
3) Nh3-g5 Nh3xg1
Top
Paloma
Posts: 1204
Joined: Thu Dec 25, 2008 9:07 pm
Full name: Herbert L

Re: 3 new hard positions from George Tsavdaris

Post by Paloma »

Vincent, thanks for these Positions.

I know a lot of postings from Tsavdaris, but I've never seen those three positions.

Where did you find these?
Top
Vinvin
Posts: 5287
Joined: Thu Mar 09, 2006 9:40 am
Full name: Vincent Lejeune

Re: 3 new hard positions from George Tsavdaris

Post by Vinvin »

Paloma wrote: ↑Tue May 08, 2018 1:44 am Vincent, thanks for these Positions.

I know a lot of postings from Tsavdaris, but I've never seen those three positions.

Where did you find these?
He gave me one week ago while chatting on Twitch :
Top
Paloma
Posts: 1204
Joined: Thu Dec 25, 2008 9:07 pm
Full name: Herbert L

Re: 3 new hard positions from George Tsavdaris

Post by Paloma »

Thanks Vincent
Top
Nay Lin Tun
Posts: 710
Joined: Mon Jan 16, 2012 6:34 am

Re: 3 new hard positions from George Tsavdaris

Post by Nay Lin Tun »

Wow!! Leela see the solution for position 1 , immediately and still stick with that move for 1 min until I stop it. Meanwhile brainfish has no clue. lol
https://ibb.co/m26CKS

Analysis after 1 min.

https://ibb.co/jh5pzS
Top
User avatar
MikeB
Posts: 4889
Joined: Thu Mar 09, 2006 6:34 am
Location: Pen Argyl, Pennsylvania

Re: 3 new hard positions from George Tsavdaris

Post by MikeB »

for the last one, using the latest McBrain v9.1 and tactical setting of 4 finds mate-in-12 almost instantaneously...

12 #12 12.8M 0:00.47 Ng5+ Kg8 Nh6+ Kf8 Nh7+ Ke7 Ng8+ Kd7 Nf8+ Kc8 Ne7+ Kb8 Nd7+ Ka7 Nc8+ Ka6 Nb8+ Kb5 Na7+ Kb4 Na6+ Ka3 Nb5#
Image
Top
User avatar
Eelco de Groot
Posts: 4658
Joined: Sun Mar 12, 2006 2:40 am
Full name:   Eelco de Groot

Re: 3 new hard positions from George Tsavdaris

Post by Eelco de Groot »

Vinvin wrote: ↑Tue May 08, 2018 1:11 am Image
r1b1qr1k/2p3pp/4p3/1pb1PpN1/pn3N1P/8/PPP1QPP1/2KR3R w - - bm Rd8;
Image
r1b1qr1k/2p3pp/4p3/1pb1PpN1/pn3N1P/P7/1PP1QPP1/2KR3R w - - bm Rd8;
Image
3nn3/2p2p1k/1p1pp1p1/p2B3p/r2B2N1/4P2N/3PKPP1/6q1 w - - bm Ng5;

30 min (1800 sec) per position with Stockfish_180424 on an i7-6*4GHz.

Code: Select all

1) Rd1-d8 Rd1-d8 * 1099 Seconds 
1) Rd1-d8 Rd1-d8 * 1591 Seconds 
1) Rd1-d8 Rd1-d8 * 561 Seconds 
1) Rd1-d8 Rd1-d8 * 646 Seconds

Code: Select all

2) Rd1-d8 Rd1-d8 * 172 Seconds 
2) Rd1-d8 Rd1-d8 * 273 Seconds 
2) Rd1-d8 Rd1-d8 * 355 Seconds 
2) Rd1-d8 Rd1-d8 * 474 Seconds

Code: Select all

3) Nh3-g5 Nh3-g5 * 1324 Seconds 
3) Nh3-g5 Nh3-g5 * 55 Seconds
3) Nh3-g5 Nh3xg1
3) Nh3-g5 Nh3xg1
Debugging is twice as hard as writing the code in the first
place. Therefore, if you write the code as cleverly as possible, you
are, by definition, not smart enough to debug it.
-- Brian W. Kernighan
Top
Vinvin
Posts: 5287
Joined: Thu Mar 09, 2006 9:40 am
Full name: Vincent Lejeune

Re: 3 new hard positions from George Tsavdaris

Post by Vinvin »

MikeB wrote: ↑Tue May 08, 2018 5:30 am for the last one, using the latest McBrain v9.1 and tactical setting of 4 finds mate-in-12 almost instantaneously...

12 #12 12.8M 0:00.47 Ng5+ Kg8 Nh6+ Kf8 Nh7+ Ke7 Ng8+ Kd7 Nf8+ Kc8 Ne7+ Kb8 Nd7+ Ka7 Nc8+ Ka6 Nb8+ Kb5 Na7+ Kb4 Na6+ Ka3 Nb5#
Yes, I forgot to mention the position is difficult only for Stockfish

Houdini 1.5 finds the mate on depth=10

Code: Select all

Houdini_15_w32:
 4/13	00:00	 1k	0	-6,56	1.Cxg1 exd5 2.Cf6+ Cxf6 3.Fxf6 Ce6
 5/14	00:00	 2k	0	-6,70	1.Cxg1 exd5 2.Cf6+ Cxf6 3.Fxf6 Ce6 4.Cf3 Ta2
 6/14	00:00	 3k	2.539k	-6,70	1.Cxg1 exd5 2.Cf6+ Cxf6 3.Fxf6 Ce6 4.Cf3 Ta2
 7/15	00:00	 4k	3.540k	-6,84	1.Cxg1 exd5 2.Cf6+ Cxf6 3.Fxf6 Ce6 4.Cf3 Ta2 5.Cd4 Cxd4+ 6.Fxd4
 8/17	00:00	 5k	2.553k	-6,91	1.Cxg1 exd5 2.Cf6+ Cxf6 3.Fxf6 Ce6 4.Cf3 Ta2 5.Rd3 a4 6.Rc3
 9/24	00:00	 34k	4.906k	-6,93	1.Cxg1 exd5 2.Cf6+ Cxf6 3.Fxf6 Ce6 4.Cf3 Tc4 5.Ce1 a4 6.d3 Tc1 7.Rd2 Tb1
 10/24-	00:00	 54k	5.436k	-7,22	1.Cxg1 exd5
 10/28+	00:00	 60k	5.482k	-6,64	1.Cg5+
 10/28+	00:00	 61k	5.502k	+14,14	1.Cg5+
 10/28	00:00	 158k	10.515k	+M12	1.Cg5+ Rg8 2.Ch6+ Rf8 3.Ch7+ Re7 4.Cg8+ Rd7 5.Cf8+ Rc8 6.Ce7+ Rb8 7.Cd7+ Ra7 8.Cc8+ Ra6 9.Cb8+ Rb5 10.Ca7+ Rb4 11.Ca6+ Ra3 12.Cb5+
 11/28	00:00	 299k	13.015k	+M12	1.Cg5+ Rg8 2.Ch6+ Rf8 3.Ch7+ Re7 4.Cg8+ Rd7 5.Cf8+ Rc8 6.Ce7+ Rb8 7.Cd7+ Ra7 8.Cc8+ Ra6 9.Cb8+ Rb5 10.Ca7+ Rb4 11.Ca6+ Ra3 12.Cb5+
 12/28	00:00	 715k	17.442k	+M12	1.Cg5+ Rg8 2.Ch6+ Rf8 3.Ch7+ Re7 4.Cg8+ Rd7 5.Cf8+ Rc8 6.Ce7+ Rb8 7.Cd7+ Ra7 8.Cc8+ Ra6 9.Cb8+ Rb5 10.Ca7+ Rb4 11.Ca6+ Ra3 12.Cb5+
 13/28	00:00	 1.589k	22.062k	+M12	1.Cg5+ Rg8 2.Ch6+ Rf8 3.Ch7+ Re7 4.Cg8+ Rd7 5.Cf8+ Rc8 6.Ce7+ Rb8 7.Cd7+ Ra7 8.Cc8+ Ra6 9.Cb8+ Rb5 10.Ca7+ Rb4 11.Ca6+ Ra3 12.Cb5+
 14/32	00:00	 3.034k	23.701k	+M12	1.Cg5+ Rg8 2.Ch6+ Rf8 3.Ch7+ Re7 4.Cg8+ Rd7 5.Cf8+ Rc8 6.Ce7+ Rb8 7.Cd7+ Ra7 8.Cc8+ Ra6 9.Cb8+ Rb5 10.Ca7+ Rb4 11.Ca6+ Ra3 12.Cb5+
 15/34	00:00	 6.548k	25.379k	+M12	1.Cg5+ Rg8 2.Ch6+ Rf8 3.Ch7+ Re7 4.Cg8+ Rd7 5.Cf8+ Rc8 6.Ce7+ Rb8 7.Cd7+ Ra7 8.Cc8+ Ra6 9.Cb8+ Rb5 10.Ca7+ Rb4 11.Ca6+ Ra3 12.Cb5+
 16/35	00:00	 11.690k	24.455k	+M12	1.Cg5+ Rg8 2.Ch6+ Rf8 3.Ch7+ Re7 4.Cg8+ Rd7 5.Cf8+ Rc8 6.Ce7+ Rb8 7.Cd7+ Ra7 8.Cc8+ Ra6 9.Cb8+ Rb5 10.Ca7+ Rb4 11.Ca6+ Ra3 12.Cb5+
 17/35	00:00	 19.976k	25.000k	+M12	1.Cg5+ Rg8 2.Ch6+ Rf8 3.Ch7+ Re7 4.Cg8+ Rd7 5.Cf8+ Rc8 6.Ce7+ Rb8 7.Cd7+ Ra7 8.Cc8+ Ra6 9.Cb8+ Rb5 10.Ca7+ Rb4 11.Ca6+ Ra3 12.Cb5+
 18/36	00:01	 34.384k	25.282k	+M12	1.Cg5+ Rg8 2.Ch6+ Rf8 3.Ch7+ Re7 4.Cg8+ Rd7 5.Cf8+ Rc8 6.Ce7+ Rb8 7.Cd7+ Ra7 8.Cc8+ Ra6 9.Cb8+ Rb5 10.Ca7+ Rb4 11.Ca6+ Ra3 12.Cb5+
 19/41	00:02	 62.344k	24.818k	+M12	1.Cg5+ Rg8 2.Ch6+ Rf8 3.Ch7+ Re7 4.Cg8+ Rd7 5.Cf8+ Rc8 6.Ce7+ Rb8 7.Cd7+ Ra7 8.Cc8+ Ra6 9.Cb8+ Rb5 10.Ca7+ Rb4 11.Ca6+ Ra3 12.Cb5+
Top
User avatar
AdminX
Posts: 6363
Joined: Mon Mar 13, 2006 2:34 pm
Location: Acworth, GA

Re: 3 new hard positions from George Tsavdaris

Post by AdminX »

Image

Leela solves problem 1

Code: Select all


Engine: Lc0 GPU Chess Engine (0 MB)
by The LCZero Authors.
Found 510 wdl tablebases
Found 510 dtz tablebases
Engine: LCZero v0.8 GPU (0 MB)
by The LCZero Authors
  7/41	 0:00 	-1.92 	1.a3 Nd5 (2) 0
  7.00	 0:00 	-1.92 	1.a3 Nd5 (2) 0
  8.00	 0:00 	-2.24 	1.a3 Nd5 2.Nxd5 exd5 (5) 0
 10.00	 0:00 	-1.86 	1.a3 Nd5 2.Nxd5 exd5 3.Rxd5 (10) 0
 10.00	 0:00 	-1.97 	1.a3 Nd5 2.Nxd5 exd5 3.Rxd5 Qc6 (13) 0
 10.00	 0:00 	-1.77 	1.a3 Nd5 2.Nxd5 exd5 3.Rxd5 Qc6 4.Rhd1 (16) 0
 11.00	 0:00 	-1.88 	1.a3 Nd5 2.Nxd5 exd5 3.Rxd5 Qc6 4.Rhd1 (19) 0
 11.00	 0:00 	-1.83 	1.a3 Nd5 2.Nxd5 exd5 3.Rxd5 Qc6 4.Rhd1 h6 (25) 0
 12.00	 0:00 	-2.12 	1.a3 Nd5 2.Nxd5 exd5 3.Rxd5 Qc6 4.Rhd1 h6 5.e6 (34) 0
 12.00	 0:00 	-2.22 	1.a3 Nd5 2.Nxd5 exd5 3.Rxd5 Qc6 4.Rhd1 h6 5.e6 hxg5 (40) 0
 12.00	 0:00 	-2.43 	1.a3 Nd5 2.Nxd5 exd5 3.Rxd5 Be7 4.e6 b4 5.axb4 a3 6.bxa3 (55) 0
 14.00	 0:00 	-2.39 	1.a3 Nd5 2.Nxd5 exd5 3.Rxd5 Be7 4.e6 b4 5.Nf7+ Kg8 6.Re1 bxa3 (112) 0
 14.00	 0:00 	-2.39 	1.a3 Nd5 2.Nxd5 exd5 3.Rxd5 Be7 4.e6 b4 5.Nf7+ Kg8 6.Re1 bxa3 7.bxa3 (145) 0
 15.00	 0:00 	-2.50 	1.a3 Nd5 2.Nxd5 exd5 3.Rxd5 Be7 4.e6 b4 5.Nf7+ Kg8 6.axb4 a3 7.bxa3 (182) 0
 15.00	 0:00 	-2.59 	1.a3 Nd5 2.Nxd5 exd5 3.Rxd5 Be7 4.e6 b4 5.Nf7+ Kg8 6.axb4 a3 7.bxa3 Qc6 (204) 0
 15.00	 0:00 	-2.57 	1.a3 Nd5 2.Nxd5 exd5 3.Rxd5 Be7 4.e6 b4 5.Nf7+ Kg8 6.axb4 a3 7.bxa3 Qc6 (228) 0
 16.00	 0:00 	-2.52 	1.Qf3 Ra6 2.h5 a3 3.Ng6+ Kg8 4.Nxf8 Bxf8 5.h6 axb2+ (357) 0
 17.00	 0:00 	-2.80 	1.Qf3 Ra6 2.a3 Nd5 3.Nxd5 exd5 4.Qxd5 Bxf2 5.e6 Bxe6 6.Qf3 Bc5 7.Rhe1 (704) 0
 18.00	 0:01 	-2.95 	1.Qf3 Rb8 2.a3 Nd5 3.Nxd5 exd5 4.Qxd5 Bxf2 5.e6 h6 6.Nf7+ Kg8 7.Qxf5 Bxe6 8.Nxh6+ gxh6 (1.424) 0
 19.00	 0:02 	-3.11 	1.Qf3 Ra6 2.a3 Nd5 3.Nxd5 exd5 4.Qxd5 Bxf2 5.e6 Bxe6 6.Qf3 Bc5 7.Rhe1 h6 8.Nxe6 Rxe6 9.Rxe6 Qxe6 (2.455) 0
 19.00	 0:03 	-3.16 	1.Qf3 Ra6 2.a3 Nd5 3.Nxd5 exd5 4.Qxd5 Bxf2 5.e6 Bxe6 6.Qf3 Bc5 7.Rhe1 h6 8.Nxe6 Rxe6 9.Rxe6 Qxe6 (3.252) 0
 20.00	 0:04 	-3.22 	1.Qf3 Ra6 2.a3 Nd5 3.Nxd5 exd5 4.Qxd5 Bxf2 5.e6 Bxe6 6.Qf3 Bc5 7.Rhe1 h6 8.Nxe6 Rxe6 9.Rxe6 Qxe6 (3.801) 0
 20.00	 0:05 	-3.33 	1.Qf3 Ra6 2.h5 a3 3.bxa3 Nd5 4.Ng6+ Kg8 5.Rxd5 Bxa3+ 6.Kb1 exd5 7.Qxd5+ Be6 8.Nxe6 Rxe6 9.Nxf8 Kxf8 (5.054) 0
 20.00	 0:06 	-3.42 	1.Qf3 Ra6 2.h5 a3 3.bxa3 Nd5 4.Ng6+ Kg8 5.Rxd5 Bxa3+ 6.Kb1 exd5 7.Qxd5+ Be6 8.Nxe6 Rxe6 9.Nxf8 Kxf8 10.f4 (6.142) 0
 21.00	 0:07 	-3.44 	1.Qf3 Ra6 2.h5 a3 3.bxa3 Nd5 4.Ng6+ Kg8 5.Rxd5 Bxa3+ 6.Kb1 exd5 7.Qxd5+ Be6 8.Nxe6 Rxe6 9.Nxf8 Kxf8 10.f4 (6.323) 0
 22.00	 0:15 	-3.55 	1.Kb1 a3 2.b3 Nd5 3.Nxd5 exd5 4.Rxd5 Qc6 5.Rd3 h6 6.e6 Be7 7.Nf7+ Kh7 8.Ng5+ Kg8 9.Qh5 Bxe6 10.Re1 (13.772) 0
 22.00	 0:15 	-3.55 	1.Kb1 a3 2.b3 Nd5 3.Nxd5 exd5 4.Rxd5 Qc6 5.Rd3 h6 6.e6 Be7 7.Nf7+ Kh7 8.Ng5+ Kg8 9.Qh5 Bxe6 10.Re1 (13.940) 0
 23.00	 0:26 	-3.34 	1.a3 Nd5 2.Nxd5 exd5 3.Rxd5 Be7 4.e6 b4 5.Qd3 Qg6 6.Re1 bxa3 7.bxa3 Rb8 8.Nf7+ Kg8 9.h5 Qf6 10.Rxf5 Qa1+ 11.Kd2 Rb1 12.Rxb1 Qxb1 13.Nh6+ gxh6 14.Rxf8+ (24.434) 0
 23.00	 0:26 	-3.34 	1.a3 Nd5 2.Nxd5 exd5 3.Rxd5 Be7 4.e6 b4 5.Qd3 Qg6 6.Re1 bxa3 7.bxa3 Rb8 8.Nf7+ Kg8 9.h5 Qf6 10.Rxf5 Qa1+ 11.Kd2 Rb1 12.Rxb1 Qxb1 13.Nh6+ gxh6 14.Rxf8+ (24.446) 0
 23.00	 0:26 	-3.33 	1.a3 Nd5 2.Nxd5 exd5 3.Rxd5 Be7 4.e6 b4 5.Qd3 Qg6 6.Re1 bxa3 7.bxa3 Rb8 8.Nf7+ Kg8 9.h5 Qf6 10.Rxf5 Qa1+ 11.Kd2 Rb1 12.Rxb1 Qxb1 13.Nh6+ gxh6 14.Rxf8+ (24.490) 0
 23.00	 0:26 	-3.32 	1.a3 Nd5 2.Nxd5 exd5 3.Rxd5 Be7 4.e6 b4 5.Qd3 Qg6 6.Re1 bxa3 7.bxa3 Rb8 8.Nf7+ Kg8 9.h5 Qf6 10.Rxf5 Qa1+ 11.Kd2 Rb1 12.Rxb1 Qxb1 13.Nh6+ gxh6 14.Rxf8+ (24.630) 0
 23.00	 0:26 	-3.06 	1.a3 Nd5 2.Nxd5 exd5 3.Rxd5 Be7 4.e6 b4 5.Qd3 Qg6 6.Re1 bxa3 7.bxa3 Rb8 8.Nf7+ Kg8 9.h5 Qf6 10.Rxf5 Qa1+ 11.Kd2 Rb1 12.Rxb1 Qxb1 13.Nh6+ gxh6 14.Rxf8+ (25.598) 0
 23.00	 0:26 	-3.05 	1.a3 Nd5 2.Nxd5 exd5 3.Rxd5 Be7 4.e6 b4 5.Qd3 Qg6 6.Re1 bxa3 7.bxa3 Rb8 8.Nf7+ Kg8 9.h5 Qf6 10.Rxf5 Qa1+ 11.Kd2 Rb1 12.Rxb1 Qxb1 13.Nh6+ gxh6 14.Rxf8+ (25.626) 0
 23.00	 0:27 	-3.01 	1.a3 Nd5 2.Nxd5 exd5 3.Rxd5 Be7 4.e6 b4 5.Qd3 Qg6 6.Re1 bxa3 7.bxa3 Rb8 8.Nf7+ Kg8 9.h5 Qf6 10.Rxf5 Qa1+ 11.Kd2 Rb1 12.Rxb1 Qxb1 13.Nh6+ gxh6 14.Rxf8+ (25.754) 0
 23.00	 0:27 	-2.98 	1.a3 Nd5 2.Nxd5 exd5 3.Rxd5 Be7 4.e6 b4 5.Qd3 Qg6 6.Re1 bxa3 7.bxa3 Rb8 8.Nf7+ Kg8 9.h5 Qf6 10.Rxf5 Qa1+ 11.Kd2 Rb1 12.Rxb1 Qxb1 13.Nh6+ gxh6 14.Rxf8+ (25.922) 0
 23.00	 0:27 	-2.97 	1.a3 Nd5 2.Nxd5 exd5 3.Rxd5 Be7 4.e6 b4 5.Qd3 Qg6 6.Re1 bxa3 7.bxa3 Rb8 8.Nf7+ Kg8 9.h5 Qf6 10.Rxf5 Qa1+ 11.Kd2 Rb1 12.Rxb1 Qxb1 13.Nh6+ gxh6 14.Rxf8+ (25.949) 0
 23.00	 0:27 	-2.88 	1.a3 Nd5 2.Nxd5 exd5 3.Rxd5 Be7 4.e6 b4 5.Qd3 Qg6 6.Re1 bxa3 7.bxa3 Rb8 8.Nf7+ Kg8 9.h5 Qf6 10.Rxf5 Qa1+ 11.Kd2 Rb1 12.Rxb1 Qxb1 13.Nh6+ gxh6 14.Rxf8+ (26.238) 0
 23.00	 0:27 	-2.83 	1.a3 Nd5 2.Nxd5 exd5 3.Rxd5 Be7 4.e6 b4 5.Qd3 Qg6 6.Re1 bxa3 7.bxa3 Rb8 8.Nf7+ Kg8 9.h5 Qf6 10.Rxf5 Qa1+ 11.Kd2 Rb1 12.Rxb1 Qxb1 13.Nh6+ gxh6 14.Rxf8+ (26.420) 0
 23.00	 0:27 	-2.81 	1.a3 Nd5 2.Nxd5 exd5 3.Rxd5 Be7 4.e6 b4 5.Qd3 Qg6 6.Re1 bxa3 7.bxa3 Rb8 8.Nf7+ Kg8 9.h5 Qf6 10.Rxf5 Qa1+ 11.Kd2 Rb1 12.Rxb1 Qxb1 13.Nh6+ gxh6 14.Rxf8+ (26.480) 0
 23.00	 0:28 	-2.47 	1.a3 Nd5 2.Nxd5 exd5 3.Rxd5 Be7 4.e6 b4 5.Qd3 Qg6 6.Re1 bxa3 7.bxa3 Rb8 8.Nf7+ Kg8 9.h5 Qf6 10.Rxf5 Qa1+ 11.Kd2 Rb1 12.Rxb1 Qxb1 13.Nh6+ gxh6 14.Rxf8+ (28.601) 1
 23.00	 0:28 	-2.40 	1.a3 Nd5 2.Nxd5 exd5 3.Rxd5 Be7 4.e6 b4 5.Qd3 Qg6 6.Re1 bxa3 7.bxa3 Rb8 8.Nf7+ Kg8 9.h5 Qf6 10.Rxf5 Qa1+ 11.Kd2 Rb1 12.Rxb1 Qxb1 13.Nh6+ gxh6 14.Rxf8+ (29.095) 1
 23.00	 0:29 	-2.19 	1.Rd8 Qxd8 2.Qh5 h6 3.Qg6 hxg5 4.hxg5+ Kg8 5.Nh5 Nxa2+ 6.Kb1 Qd7 7.Nf6+ Rxf6 8.exf6 Nc3+ 9.bxc3 Bf8 10.Qh5 gxf6 11.Qh8+ Kf7 12.Rh7+ Ke8 13.Rxd7 Kxd7 14.Qxf8 (30.426) 1
 23.00	 0:30 	-1.73 	1.Rd8 Qxd8 2.Qh5 h6 3.Qg6 hxg5 4.hxg5+ Kg8 5.Nh5 Nxa2+ 6.Kb1 Qd7 7.Nf6+ Rxf6 8.exf6 Nc3+ 9.bxc3 Bf8 10.Qh5 gxf6 11.Qh8+ Kf7 12.Rh7+ Ke8 13.Rxd7 Kxd7 14.Qxf8 (33.984) 1
 23.00	 0:30 	-1.73 	1.Rd8 Qxd8 2.Qh5 h6 3.Qg6 hxg5 4.hxg5+ Kg8 5.Nh5 Nxa2+ 6.Kb1 Qd7 7.Nf6+ Rxf6 8.exf6 Nc3+ 9.bxc3 Bf8 10.Qh5 gxf6 11.Qh8+ Kf7 12.Rh7+ Ke8 13.Rxd7 Kxd7 14.Qxf8 (33.995) 1
 23.00	 0:31 	-1.70 	1.Rd8 Qxd8 2.Qh5 h6 3.Qg6 hxg5 4.hxg5+ Kg8 5.Nh5 Nxa2+ 6.Kb1 Qd7 7.Nf6+ Rxf6 8.exf6 e5 9.Qh7+ Kf8 10.Qh8+ Kf7 11.fxg7 Nc3+ 12.bxc3 Bb7 13.g6+ Ke6 14.g8B+ (34.792) 1
 23.00	 0:31 	-1.68 	1.Rd8 Qxd8 2.Qh5 h6 3.Qg6 hxg5 4.hxg5+ Kg8 5.Nh5 Nxa2+ 6.Kb1 Qd7 7.Nf6+ Rxf6 8.exf6 e5 9.Qh7+ Kf8 10.Qh8+ Kf7 11.fxg7 Nc3+ 12.bxc3 Bb7 13.g6+ Ke6 14.g8B+ (35.189) 1
 23.00	 0:31 	-1.68 	1.Rd8 Qxd8 2.Qh5 h6 3.Qg6 hxg5 4.hxg5+ Kg8 5.Nh5 Nxa2+ 6.Kb1 Qd7 7.Nf6+ Rxf6 8.exf6 e5 9.Qh7+ Kf8 10.Qh8+ Kf7 11.fxg7 Bb7 12.g6+ Ke6 13.g8Q+ Rxg8 14.Qxg8+ (35.250) 1
 23.00	 0:31 	-1.68 	1.Rd8 Qxd8 2.Qh5 h6 3.Qg6 hxg5 4.hxg5+ Kg8 5.Nh5 Nxa2+ 6.Kb1 Qd7 7.Nf6+ Rxf6 8.exf6 e5 9.Qh7+ Kf8 10.Qh8+ Kf7 11.fxg7 Bb7 12.g6+ Ke6 13.g8Q+ Rxg8 14.Qxg8+ (35.257) 1
 23.00	 0:40 	-1.03 	1.Rd8 Qxd8 2.Qh5 h6 3.Qg6 hxg5 4.hxg5+ Kg8 5.Nh5 Nxa2+ 6.Kb1 Qd7 7.Nf6+ Rxf6 8.exf6 e5 9.Qh7+ Kf8 10.Qh8+ Kf7 11.fxg7 Nc3+ 12.bxc3 Bb7 13.g6+ Ke6 14.g8B+ (44.463) 1
 23.00	 0:44 	-0.77 	1.Rd8 Qxd8 2.Qh5 h6 3.Qg6 hxg5 4.hxg5+ Kg8 5.Nh5 Nxa2+ 6.Kb1 Qd7 7.Nf6+ Rxf6 8.exf6 e5 9.Qh7+ Kf8 10.g6 gxf6 11.Qh8+ Ke7 12.Rh7+ Kd6 13.Rxd7+ Kxd7 14.g7 (48.865) 1
 24.00	 0:44 	-0.76 	1.Rd8 Qxd8 2.Qh5 h6 3.Qg6 hxg5 4.hxg5+ Kg8 5.Nh5 Nxa2+ 6.Kb1 Qd7 7.Nf6+ Rxf6 8.exf6 e5 9.Qh7+ Kf8 10.g6 gxf6 11.Qh8+ Ke7 12.Rh7+ Kd6 13.Rxd7+ Kxd7 14.g7 (49.144) 1
 24.00	 0:46 	-0.59 	1.Rd8 Qxd8 2.Qh5 h6 3.Qg6 hxg5 4.hxg5+ Kg8 5.Nh5 Nxa2+ 6.Kb1 Qd7 7.Nf6+ Rxf6 8.exf6 e5 9.Qh7+ Kf8 10.g6 gxf6 11.Qh8+ Ke7 12.Rh7+ Kd6 13.Rxd7+ Kxd7 14.g7 (51.974) 1
 24.00	 0:48 	-0.45 	1.Rd8 Qxd8 2.Qh5 h6 3.Qg6 hxg5 4.hxg5+ Kg8 5.Nh5 Nxa2+ 6.Kb1 Qd7 7.Nf6+ Rxf6 8.exf6 e5 9.Qh7+ Kf8 10.g6 gxf6 11.Qh8+ Ke7 12.Rh7+ Kd6 13.Rxd7+ Kxd7 14.g7 (55.185) 1
 24.00	 0:48 	-0.45 	1.Rd8 Qxd8 2.Qh5 h6 3.Qg6 hxg5 4.hxg5+ Kg8 5.Nh5 Nxa2+ 6.Kb1 Qd7 7.Nf6+ Rxf6 8.exf6 e5 9.Qh7+ Kf8 10.g6 gxf6 11.Qh8+ Ke7 12.Rh7+ Kd6 13.Rxd7+ Kxd7 14.g7 (55.301) 1
 24.00	 0:48 	-0.45 	1.Rd8 Qxd8 2.Qh5 h6 3.Qg6 hxg5 4.hxg5+ Kg8 5.Nh5 Nxa2+ 6.Kb1 Qd7 7.Nf6+ Rxf6 8.exf6 e5 9.Qh7+ Kf8 10.g6 gxf6 11.Qh8+ Ke7 12.Rh7+ Kd6 13.Rxd7+ Kxd7 14.g7 (55.354) 1
 24.00	 0:49 	-0.38 	1.Rd8 Qxd8 2.Qh5 h6 3.Qg6 hxg5 4.hxg5+ Kg8 5.Nh5 Nxa2+ 6.Kb1 Qd7 7.Nf6+ Rxf6 8.exf6 e5 9.Qh7+ Kf8 10.g6 gxf6 11.Qh8+ Ke7 12.Rh7+ Kd6 13.Rxd7+ Kxd7 14.g7 (56.684) 1
 24.00	 0:49 	-0.38 	1.Rd8 Qxd8 2.Qh5 h6 3.Qg6 hxg5 4.hxg5+ Kg8 5.Nh5 Nxa2+ 6.Kb1 Qd7 7.Nf6+ Rxf6 8.exf6 e5 9.Qh7+ Kf8 10.g6 gxf6 11.Qh8+ Ke7 12.Rh7+ Kd6 13.Rxd7+ Kxd7 14.g7 (56.733) 1
 24.00	 1:01 	-0.07 	1.Rd8 Qxd8 2.Qh5 h6 3.Qg6 hxg5 4.hxg5+ Kg8 5.Nh5 Nxa2+ 6.Kb1 Qd7 7.Nf6+ Rxf6 8.exf6 e5 9.Qh7+ Kf8 10.g6 gxf6 11.Qh8+ Ke7 12.Rh7+ Kd6 13.Rxd7+ Kxd7 14.g7 (70.841) 1
 24.00	 1:04 	-0.03 	1.Rd8 Qxd8 2.Qh5 h6 3.Qg6 hxg5 4.hxg5+ Kg8 5.Nh5 Nxa2+ 6.Kb1 Qd7 7.Nf6+ Rxf6 8.exf6 e5 9.Qh7+ Kf8 10.g6 gxf6 11.Qh8+ Ke7 12.Rh7+ Kd6 13.Rxd7+ Kxd7 14.g7 (73.408) 1
 24.00	 1:06 	+0.04 	1.Rd8 Qxd8 2.Qh5 h6 3.Qg6 hxg5 4.hxg5+ Kg8 5.Nh5 Nxa2+ 6.Kb1 Qd7 7.Nf6+ Rxf6 8.exf6 e5 9.Qh7+ Kf8 10.g6 gxf6 11.Qh8+ Ke7 12.Rh7+ Kd6 13.Rxd7+ Kxd7 14.g7 (77.364) 1  TB:1
 24.00	 1:06 	+0.04 	1.Rd8 Qxd8 2.Qh5 h6 3.Qg6 hxg5 4.hxg5+ Kg8 5.Nh5 Nxa2+ 6.Kb1 Qd7 7.Nf6+ Rxf6 8.exf6 e5 9.Qh7+ Kf8 10.g6 gxf6 11.Qh8+ Ke7 12.Rh7+ Kd6 13.Rxd7+ Kxd7 14.g7 (77.410) 1  TB:1
 24.00	 1:07 	+0.04 	1.Rd8 Qxd8 2.Qh5 h6 3.Qg6 hxg5 4.hxg5+ Kg8 5.Nh5 Nxa2+ 6.Kb1 Qd7 7.Nf6+ Rxf6 8.exf6 e5 9.Qh7+ Kf8 10.g6 gxf6 11.Qh8+ Ke7 12.Rh7+ Kd6 13.Rxd7+ Kxd7 14.g7 (77.579) 1  TB:2
 24.00	 1:07 	+0.06 	1.Rd8 Qxd8 2.Qh5 h6 3.Qg6 hxg5 4.hxg5+ Kg8 5.Nh5 Nxa2+ 6.Kb1 Qd7 7.Nf6+ Rxf6 8.exf6 e5 9.Qh7+ Kf8 10.g6 gxf6 11.Qh8+ Ke7 12.Rh7+ Kd6 13.Rxd7+ Kxd7 14.g7 (78.554) 1  TB:2
 24.00	 1:08 	+0.06 	1.Rd8 Qxd8 2.Qh5 h6 3.Qg6 hxg5 4.hxg5+ Kg8 5.Nh5 Nxa2+ 6.Kb1 Qd7 7.Nf6+ Rxf6 8.exf6 e5 9.Qh7+ Kf8 10.g6 gxf6 11.Qh8+ Ke7 12.Rh7+ Kd6 13.Rxd7+ Kxd7 14.g7 (78.715) 1  TB:2
 24.00	 1:09 	+0.09 	1.Rd8 Qxd8 2.Qh5 h6 3.Qg6 hxg5 4.hxg5+ Kg8 5.Nh5 Nxa2+ 6.Kb1 Qd7 7.Nf6+ Rxf6 8.exf6 e5 9.Qh7+ Kf8 10.g6 gxf6 11.Qh8+ Ke7 12.Rh7+ Kd6 13.Rxd7+ Kxd7 14.g7 (80.201) 1  TB:2
 25.00	 1:40 	+0.68 	1.Rd8 Qxd8 2.Qh5 h6 3.Qg6 hxg5 4.hxg5+ Kg8 5.Nh5 Nxa2+ 6.Kb1 Qd7 7.Nf6+ Rxf6 8.exf6 e5 9.Qh7+ Kf8 10.g6 gxf6 11.Qh8+ Ke7 12.Rh7+ Kd6 13.Rxd7+ Kxd7 14.g7 (128.988) 1  TB:6
 25.00	 1:40 	+0.68 	1.Rd8 Qxd8 2.Qh5 h6 3.Qg6 hxg5 4.hxg5+ Kg8 5.Nh5 Nxa2+ 6.Kb1 Qd7 7.Nf6+ Rxf6 8.exf6 e5 9.Qh7+ Kf8 10.g6 gxf6 11.Qh8+ Ke7 12.Rh7+ Kd6 13.Rxd7+ Kxd7 14.g7 (129.036) 1  TB:6
 25.00	 1:41 	+0.69 	1.Rd8 Qxd8 2.Qh5 h6 3.Qg6 hxg5 4.hxg5+ Kg8 5.Nh5 Nxa2+ 6.Kb1 Qd7 7.Nf6+ Rxf6 8.exf6 e5 9.Qh7+ Kf8 10.g6 gxf6 11.Qh8+ Ke7 12.Rh7+ Kd6 13.Rxd7+ Kxd7 14.g7 (129.667) 1  TB:6
 25.00	 1:48 	+0.77 	1.Rd8 Qxd8 2.Qh5 h6 3.Qg6 hxg5 4.hxg5+ Kg8 5.Nh5 Nxa2+ 6.Kb1 Qd7 7.Nf6+ Rxf6 8.exf6 e5 9.Qh7+ Kf8 10.g6 gxf6 11.Qh8+ Ke7 12.Rh7+ Kd6 13.Rxd7+ Kxd7 14.g7 (139.682) 1  TB:6
 25.00	 2:10 	+1.00 	1.Rd8 Qxd8 2.Qh5 h6 3.Qg6 hxg5 4.hxg5+ Kg8 5.Nh5 Nxa2+ 6.Kb1 Qd7 7.Nf6+ Rxf6 8.exf6 e5 9.Qh7+ Kf8 10.g6 gxf6 11.Qh8+ Ke7 12.Rh7+ Kd6 13.Rxd7+ Kxd7 14.g7 (177.608) 1  TB:14
 25.00	 2:10 	+1.00 	1.Rd8 Qxd8 2.Qh5 h6 3.Qg6 hxg5 4.hxg5+ Kg8 5.Nh5 Nxa2+ 6.Kb1 Qd7 7.Nf6+ Rxf6 8.exf6 e5 9.Qh7+ Kf8 10.g6 gxf6 11.Qh8+ Ke7 12.Rh7+ Kd6 13.Rxd7+ Kxd7 14.g7 (177.722) 1  TB:14
 25.00	 2:11 	+1.01 	1.Rd8 Qxd8 2.Qh5 h6 3.Qg6 hxg5 4.hxg5+ Kg8 5.Nh5 Nxa2+ 6.Kb1 Qd7 7.Nf6+ Rxf6 8.exf6 e5 9.Qh7+ Kf8 10.g6 gxf6 11.Qh8+ Ke7 12.Rh7+ Kd6 13.Rxd7+ Kxd7 14.g7 (179.022) 1  TB:14
 25.00	 2:12 	+1.02 	1.Rd8 Qxd8 2.Qh5 h6 3.Qg6 hxg5 4.hxg5+ Kg8 5.Nh5 Nxa2+ 6.Kb1 Qd7 7.Nf6+ Rxf6 8.exf6 e5 9.Qh7+ Kf8 10.g6 gxf6 11.Qh8+ Ke7 12.Rh7+ Kd6 13.Rxd7+ Kxd7 14.g7 (180.401) 1  TB:14
 26.00	 3:03 	+1.25 	1.Rd8 Qxd8 2.Qh5 h6 3.Qg6 hxg5 4.hxg5+ Kg8 5.Nh5 Nxa2+ 6.Kb1 Qd7 7.Nf6+ Rxf6 8.exf6 e5 9.Qh7+ Kf8 10.g6 gxf6 11.Qh8+ Ke7 12.Rh7+ Kd6 13.Rxd7+ Kxd7 14.g7 (254.353) 1  TB:17
 26.00	 3:15 	+1.30 	1.Rd8 Qxd8 2.Qh5 h6 3.Qg6 hxg5 4.hxg5+ Kg8 5.Nh5 Nxa2+ 6.Kb1 Qd7 7.Nf6+ Rxf6 8.exf6 e5 9.Qh7+ Kf8 10.g6 gxf6 11.Qh8+ Ke7 12.Rh7+ Kd6 13.Rxd7+ Kxd7 14.g7 (271.414) 1  TB:20
 26.00	 3:15 	+1.30 	1.Rd8 Qxd8 2.Qh5 h6 3.Qg6 hxg5 4.hxg5+ Kg8 5.Nh5 Nxa2+ 6.Kb1 Qd7 7.Nf6+ Rxf6 8.exf6 e5 9.Qh7+ Kf8 10.g6 gxf6 11.Qh8+ Ke7 12.Rh7+ Kd6 13.Rxd7+ Kxd7 14.g7 (271.519) 1  TB:20
However the potential capture throws her off position number 2

Image
"Good decisions come from experience, and experience comes from bad decisions."
__________________________________________________________________
Ted Summers
Top
Paloma
Posts: 1204
Joined: Thu Dec 25, 2008 9:07 pm
Full name: Herbert L

Re: 3 new hard positions from George Tsavdaris

Post by Paloma »

How can i insert comfortably Diagrams?

[d]r1b1qr1k/2p3pp/ ..... seems not work. :shock:
Top

Return to “Computer Chess Club: General Topics”