Hard test set talkchesscom-2012

[Houdini]

One line is Bd5+ Kg7 Re1 Rc5 e6 Rxd6 e7 Rc8 e8=Q Rxe8 Rxe8 and White has a Bishop vs. 3 pawns, with a better endgame.

That's also the main line for Houdini.
The result is an easy win for white because of the passed pawn at c4. I would win that against Anand .

[zullil]

8
7
6
5
4
3
2
1
	a	b	c	d	e	f	g	h

3r2k1/p6p/b2r2p1/2qPQp2/2P2P2/8/6BP/R4R1K w - - 0 1

Critter-1.6a (8 threads) takes some time:

Code: Select all

25/61  02:33    1662M  10824K  +1.28 Rfb1 Bc8 Ra4 Kf7 Re1 a6 h4 Rf6 Qc3 Rf8 Re3 Rb6 h5 Rg8 Ra1 g5 fxg5 Rxg5 Rae1 Rxh5+ Bh3 f4
26/61+ 05:01    3314M  11005K  +1.37 Rxa6 Rxa6 d6 Qxe5 fxe5 Ra5 Bd5+ Kf8 Rb1 Rxd5 cxd5 Ke8 Kg2 h6 Kf3 g5 h4 gxh4 Rg1 Kf8 Rg6 h5 Rg5 Rd7 Kf4
26/61+ 06:35    4379M  11065K  +1.50 Rxa6 Rxa6 d6 Qxe5 fxe5 Ra5 Bd5+ Kf8 Rb1 Rxd5 cxd5 Ke8 Kg2 h6 Kf3 g5 h4 Rc8 e6 Rd8 d7+ Ke7 Ra1 Rb8 hxg5 hxg5 Rxa7 Rb3+ Kf2 Rb8 Ra1 Rh8 Kg3 Rd8 Ra7
26/61+ 09:02    6054M  11164K  +1.69 Rxa6 Rxa6 d6 Qxe5 fxe5 Ra5 Bd5+ Kf8 Rb1 Rxd5 cxd5 Ke8 Kg2 h6 Kf3 g5 h4 Rc8 e6 Rd8 d7+ Ke7 Ra1 Rb8 hxg5 hxg5 Rxa7 Rb3+ Kf2 Rb8 Ra1 Rh8 Kg3 Rb8 Ra3 Rd8 Ra1 f4+ Kg4
26/66  12:33    8429M  11181K  +1.84 Rxa6 Rxa6 d6 Qxe5 fxe5 Ra5 Bd5+ Kg7 Re1 Rc5 e6 Rxd6 e7 Rc8 e8=Q Rxe8 Rxe8 Kf6 Kg2 g5 Kg3 a5 Rf8+ Ke5 Ra8 Rb6 Rxa5 Rb3+ Bf3+ Kf6 Kf2 g4 Be2 Rh3 Kg2 Re3 Bf1 f4 Ra7 f3+ Kf2 Rc3 Rxh7 Rc2+ Kg3

[jwes]

Nice collection. I'd like to have info about the positions' source games (if any) though. I think most of the ones in the first 60 labeled "Test Positon" are from the Arasan test suite but the comment fields that indicate the source are not preserved. (Same for a lot of the other positions)

--Jon

All position from Arasan suite are tagged like this: [Comment "bm Nf6+; id "arasan14.197"; c0 "Serban-Schuster, World Corr Ch 26 Final, 2010";"]

I've to reorganize all of this, I found some bugs today already.

I'll publish another intermediate beta version in 2 weeks and the finale version in 4 weeks (I hope... ).

There are some epd records in the middle of the file. I could send you the line numbers if you are interested.

[kgburcham]

Just for Kix, Ran this through the Cluster, 64 cores Running a version of Rybka.
[d] 3r2k1/p6p/b2r2p1/2qPQp2/2P2P2/8/6BP/R4R1K w - - 0 1

[kinderchocolate]

Thanks, Vincent.

Do you think you can fix up the PGN for the next release? Some GUIs have problems in loading the PGN. For example, instead of [Result 1-0"], it's [Result "1-0"].

[kinderchocolate]

Also, PGN doesn't support 1. Bc2-b1 as in the "Pos 36" game.

[Vinvin]

Thanks, Vincent.

Do you think you can fix up the PGN for the next release? Some GUIs have problems in loading the PGN. For example, instead of [Result 1-0"], it's [Result "1-0"].

Also, PGN doesn't support 1. Bc2-b1 as in the "Pos 36" game.

Thanks for you investigations !
I'll correct that tonight.

[Jouni]

As I remembered SF solves this sometimes (only 2 cores):

Analysis by Stockfish 2.2.2 JA:

1.Rfc1 Bxc4 2.Ra4 Rxd5 3.Qe6+ Kg7 4.Raxc4 Rd1+ 5.Bf1 Qd5+ 6.Qxd5 R8xd5 7.Rc7+ Rd7 8.Kg2 a5 9.Be2 R1d2 10.Kg3
+- (2.06 ++) Depth: 29/54 00:02:29 271mN
1.Rxa6 Rxa6 2.d6 Qxe5 3.fxe5 Kf7 4.Bd5+ Ke8 5.c5 Ra5 6.Rc1 Rb8 7.e6 f4 8.Bc6+ Kf8 9.e7+ Kf7 10.Kg2 Ra3 11.Rb1
+- (2.14 ++) Depth: 29/58 00:02:57 325mN
1.Rxa6 Rxa6 2.d6 Qxe5 3.fxe5 Kf7 4.Bd5+ Ke8 5.c5 Ra5 6.Rc1 g5 7.e6 Ra6 8.d7+ Rxd7 9.exd7+ Kxd7 10.c6+
+- (2.26 ++) Depth: 29/58 00:03:11 352mN
1.Rxa6 Rxa6 2.d6 Qxe5 3.fxe5 Kf7 4.Bd5+ Ke8 5.c5 Ra5 6.Rc1 g5 7.e6 Ra6 8.d7+ Rxd7 9.exd7+ Kxd7 10.c6+ Kc7
+- (2.44 ++) Depth: 29/58 00:03:27 382mN
1.Rxa6 Rxa6 2.d6 Qxe5 3.fxe5 Kf7 4.Bd5+ Ke8 5.c5 Ra5 6.Rc1 g5 7.e6 Ra6 8.d7+ Rxd7 9.exd7+ Kxd7 10.c6+ Kc7 11.Re1 Kd6 12.Rd1 Kc7 13.Bf3 Ra2 14.Rd7+ Kc8 15.Rxh7 a5 16.Bd5 Re2
+- (2.71 ++) Depth: 29/58 00:03:50 424mN

[Vinvin]

Thanks, Vincent.

Do you think you can fix up the PGN for the next release? Some GUIs have problems in loading the PGN. For example, instead of [Result 1-0"], it's [Result "1-0"].

Also, PGN doesn't support 1. Bc2-b1 as in the "Pos 36" game.

Thanks for you investigations !
I'll correct that tonight.

I've uploaded the corrected file + added a couple of recent positions (mainly from Jon Dart, thanks to him !)

[jdart]

#185 - the game is given but what is the problem?

#237 has the same "Event" tag as #236 - this is incorrect.

--Jon