83 nice Testpositions (Long and big post).

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ardee

Re: 83 nice Testpositions (Long and big post).

Post by ardee » Mon Aug 20, 2007 7:10 pm

Yet another one I can't get without human assistance:

"Re3!! wins! Other moves draw."
[D]4R3/3p4/KB1P3p/7P/8/p5pP/Pp3npb/1R3nkq w - - 0 1

What happens after 1. Re3 Nd1! (other moves lose right away)?

Uri Blass
Posts: 8683
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Re: 83 nice Testpositions (Long and big post).

Post by Uri Blass » Mon Aug 20, 2007 7:14 pm

This is wrong and the right solution is Re6

easy problem for computers because it is a forced mate and programs can easily find forced mates.

I can add that I posted in page 3 of this thread some analysis

in Aug 12, 2007 4:58 am
Uri
Last edited by Uri Blass on Mon Aug 20, 2007 7:19 pm, edited 1 time in total.

Dann Corbit
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Re: 83 nice Testpositions (Long and big post).

Post by Dann Corbit » Mon Aug 20, 2007 7:14 pm

Movei understands this position well:

32) Kh1;
Searching move: Kh2-h1
Best move (Movei UCI): Kh2-h1
identical moves! Found in: 01:22
2 00:00 31 0 +0.56 Kh2h3 Kg5f5
2 00:00 53 0 +0.56 Kh2h3 Kg5f5
3 00:00 84 0 +0.59 Kh2h3 f6f5 f2f3
3 00:00 144 0 +0.59 Kh2h3 f6f5 f2f3
4 00:00 283 0 +0.58 Kh2h3 f6f5 f2f4+ Kg5f6 g3g4
4 00:00 432 0 +0.58 Kh2h3 f6f5 f2f4+ Kg5f6 g3g4
5 00:00 711 0 +0.54 Kh2h3 f6f5 f2f3 h7h6 Kh3h2
5 00:00 886 0 +0.55 f2f3
5 00:00 1.062 0 +0.71 f2f3 Kg5f5 Kh2g1 Kf5e5 Kg1f2
5 00:00 1.229 0 +0.72 Kh2g1
5 00:00 1.399 0 +0.79 Kh2g1 Kg5f5 Kg1f1 Kf5e4 Kf1e2
5 00:00 1.490 0 +0.79 Kh2g1 Kg5f5 Kg1f1 Kf5e4 Kf1e2
6 00:00 1.960 0 +0.77 Kh2g1 Kg5f5 Kg1f1 Kf5e4 Kf1e2 f6f5
6 00:00 2.354 0 +0.77 Kh2g1 Kg5f5 Kg1f1 Kf5e4 Kf1e2 f6f5
7 00:00 3.544 0 +0.82 Kh2g1 Kg5g4 Kg1f1 Kg4f5 Kf1e2 Kf5e4 g3g4
7 00:00 4.132 0 +0.83 f2f3
7 00:00 4.763 0 +0.84 f2f3 Kg5f5 Kh2g1 Kf5e5 Kg1f2 f6f5 Kf2e3
7 00:00 5.077 0 +0.84 f2f3 Kg5f5 Kh2g1 Kf5e5 Kg1f2 f6f5 Kf2e3
8 00:00 6.680 0 +0.85 f2f3 Kg5f5 Kh2g1 Kf5e6 Kg1f2 f6f5 Kf2e3 Ke6e5 f3f4+ Ke5e6
8 00:00 8.384 0 +0.85 f2f3 Kg5f5 Kh2g1 Kf5e6 Kg1f2 f6f5 Kf2e3 Ke6e5 f3f4+ Ke5e6
9 00:00 11.113 0 +0.86 f2f3 Kg5f5 Kh2g1 Kf5e6 Kg1f2 Ke6e5 Kf2e2 f6f5
9 00:00 15.029 0 +0.86 f2f3 Kg5f5 Kh2g1 Kf5e6 Kg1f2 Ke6e5 Kf2e2 f6f5
10 00:00 32.318 0 +0.83 f2f3 h7h5 Kh2g1 Kg5f5
10 00:00 37.980 0 +0.84 Kh2g1
10 00:00 49.416 0 +0.86 Kh2g1 Kg5f5 f2f3 h7h5 Kg1f2 Kf5e5 Kf2e3 f6f5 f3f4+ Ke5d5 Ke3d3
10 00:00 51.718 0 +0.86 Kh2g1 Kg5f5 f2f3 h7h5 Kg1f2 Kf5e5 Kf2e3 f6f5 f3f4+ Ke5d5 Ke3d3
11 00:00 66.731 0 +0.88 Kh2g1 Kg5f5 f2f3 h7h5 Kg1f2 Kf5e5 Kf2e3 f6f5 Ke3d3 Ke5f6 Kd3d4
11 00:00 72.461 0 +0.88 Kh2g1 Kg5f5 f2f3 h7h5 Kg1f2 Kf5e5 Kf2e3 f6f5 Ke3d3 Ke5f6 Kd3d4
12 00:00 94.878 0 +0.86 Kh2g1 Kg5f5 f2f3 Kf5e5 g3g4 Ke5d4 Kg1f2 Kd4d3 Kf2f1
12 00:00 114.810 0 +0.87 Kh2h3
12 00:00 130.457 0 +0.87 Kh2h3 f6f5 f2f3 h7h5 f3f4+ Kg5g6 Kh3h2 Kg6f6 Kh2g1 Kf6e6 Kg1f2 Ke6e7
12 00:00 143.982 0 +0.87 Kh2h3 f6f5 f2f3 h7h5 f3f4+ Kg5g6 Kh3h2 Kg6f6 Kh2g1 Kf6e6 Kg1f2 Ke6e7
13 00:00 172.635 0 +0.88 Kh2h3 f6f5 f2f3 h7h5 f3f4+ Kg5g6 Kh3h2 Kg6f6
13 00:00 196.316 0 +0.88 Kh2h3 f6f5 f2f3 h7h5 f3f4+ Kg5g6 Kh3h2 Kg6f6
14 00:00 243.866 0 +0.88 Kh2h3 f6f5 f2f3 h7h5 Kh3h2 Kg5g6 f3f4
14 00:01 285.515 0 +0.88 Kh2h3 f6f5 f2f3 h7h5 Kh3h2 Kg5g6 f3f4
15 00:01 341.081 0 +0.88 Kh2h3 f6f5 f2f3 h7h5 Kh3h2 Kg5g6 f3f4
15 00:01 402.394 0 +0.88 Kh2h3 f6f5 f2f3 h7h5 Kh3h2 Kg5g6 f3f4
16 00:01 501.337 0 +0.87 Kh2h3 f6f5 f2f3 h7h5 Kh3h2 Kg5g6 Kh2g1 Kg6f7 Kg1f2 Kf7f6 Kf2e3 Kf6e6 f3f4
16 00:02 603.461 0 +0.87 Kh2h3 f6f5 f2f3 h7h5 Kh3h2 Kg5g6 Kh2g1 Kg6f7 Kg1f2 Kf7f6 Kf2e3 Kf6e6 f3f4
17 00:02 745.330 0 +0.87 Kh2h3 f6f5 f2f3 h7h5 Kh3h2 Kg5g6 Kh2g1 Kg6f7 Kg1f2 Kf7e6 Kf2e3 Ke6e5
17 00:02 906.263 0 +0.88 Kh2g1
17 00:03 1.351.178 0 +0.87 Kh2h3 f6f5 f2f3 h7h5 Kh3h2 Kg5g6 Kh2g1 Kg6f7 Kg1f2 Kf7e6 Kf2e3 Ke6e5
17 00:03 1.418.938 0 +0.87 Kh2h3 f6f5 f2f3 h7h5 Kh3h2 Kg5g6 Kh2g1 Kg6f7 Kg1f2 Kf7e6 Kf2e3 Ke6e5
18 00:05 1.586.485 0 +0.87 Kh2h3 f6f5 f2f3 h7h5 Kh3h2 Kg5g6 Kh2g1 Kg6f7 Kg1f2 Kf7e6
18 00:05 1.741.738 0 +0.87 Kh2h3 f6f5 f2f3 h7h5 Kh3h2 Kg5g6 Kh2g1 Kg6f7 Kg1f2 Kf7e6
19 00:06 1.923.923 0 +0.87 Kh2h3 f6f5 f2f3 h7h5 Kh3h2 Kg5g6 Kh2g1 Kg6f7 Kg1f2 Kf7e6 Kf2e3 Ke6e5 Ke3d3 Ke5d5 Kd3d2 Kd5d6 f3f4 Kd6e6 Kd2d3
19 00:06 2.101.953 0 +0.87 Kh2h3 f6f5 f2f3 h7h5 Kh3h2 Kg5g6 Kh2g1 Kg6f7 Kg1f2 Kf7e6 Kf2e3 Ke6e5 Ke3d3 Ke5d5 Kd3d2 Kd5d6 f3f4 Kd6e6 Kd2d3
20 00:07 2.515.971 0 +0.87 Kh2h3 f6f5 f2f3 h7h5 Kh3h2 Kg5g6 Kh2g1 Kg6f7 Kg1f1 Kf7e6 Kf1e2
20 00:08 2.610.477 0 +0.87 Kh2h3 f6f5 f2f3 h7h5 Kh3h2 Kg5g6 Kh2g1 Kg6f7 Kg1f1 Kf7e6 Kf1e2
21 00:08 2.912.367 0 +0.87 Kh2h3 f6f5 f2f3 h7h5 Kh3h2 Kg5g6 Kh2g1 Kg6f7 Kg1f1 Kf7e6 Kf1e2
21 00:09 3.014.322 0 +0.87 Kh2h3 f6f5 f2f3 h7h5 Kh3h2 Kg5g6 Kh2g1 Kg6f7 Kg1f1 Kf7e6 Kf1e2
22 00:10 3.607.674 0 +0.85 Kh2h3 f6f5 f2f3 h7h5 Kh3h2 Kg5g6 Kh2g1 Kg6f6 Kg1f2 Kf6e6 Kf2e2 Ke6d6 Ke2d2 Kd6e6 Kd2e1
22 00:11 4.404.884 0 +0.86 Kh2g1
22 00:11 4.510.427 0 +0.85 Kh2h3 f6f5 f2f3 h7h5 Kh3h2 Kg5g6 Kh2g1 Kg6f6 Kg1f2 Kf6e6 Kf2e2 Ke6d6 Ke2d2 Kd6e6 Kd2e1
22 00:13 5.163.027 0 +0.86 Kh2h1
22 00:13 5.522.178 0 +0.86 Kh2h1 f6f5 Kh1g1 Kg5f6 Kg1f1 Kf6e5 Kf1e1 Ke5d5 Ke1d1 Kd5e5 Kd1c2 Ke5d4 Kc2d2
22 00:13 5.541.057 0 +0.86 Kh2h1 f6f5 Kh1g1 Kg5f6 Kg1f1 Kf6e5 Kf1e1 Ke5d5 Ke1d1 Kd5e5 Kd1c2 Ke5d4 Kc2d2
23 00:14 6.048.193 0 +0.86 Kh2h1 f6f5 Kh1g1 Kg5f6 Kg1f1 Kf6e5 Kf1e1 Ke5d5 Ke1d1 Kd5e5 Kd1c2 Ke5d4 Kc2d2
23 00:15 6.154.663 0 +0.86 Kh2h1 f6f5 Kh1g1 Kg5f6 Kg1f1 Kf6e5 Kf1e1 Ke5d5 Ke1d1 Kd5e5 Kd1c2 Ke5d4 Kc2d2
24 00:18 8.483.214 0 +0.87 Kh2h1 f6f5 Kh1g1 Kg5f6 Kg1f1 Kf6e5 Kf1e1 Ke5d5 Ke1d1 Kd5e5 Kd1c2 Ke5d4 Kc2d2 h7h6 Kd2e2 Kd4e4 Ke2f1 Ke4e5 Kf1g1 h6h5 Kg1h2 Ke5e6
24 00:18 8.633.251 0 +0.87 Kh2h1 f6f5 Kh1g1 Kg5f6 Kg1f1 Kf6e5 Kf1e1 Ke5d5 Ke1d1 Kd5e5 Kd1c2 Ke5d4 Kc2d2 h7h6 Kd2e2 Kd4e4 Ke2f1 Ke4e5 Kf1g1 h6h5 Kg1h2 Ke5e6
25 00:20 9.758.332 0 +0.87 Kh2h1 f6f5 Kh1g1 Kg5f6 Kg1f1 Kf6e5 Kf1e1 Ke5d5 Ke1d1 Kd5e5 Kd1c2 Ke5d4 Kc2d2
25 00:21 9.933.637 0 +0.87 Kh2h1 f6f5 Kh1g1 Kg5f6 Kg1f1 Kf6e5 Kf1e1 Ke5d5 Ke1d1 Kd5e5 Kd1c2 Ke5d4 Kc2d2
26 00:23 11.240.455 0 +0.87 Kh2h1 f6f5 Kh1g1 Kg5f6 Kg1f1 Kf6e5 Kf1e1 Ke5d5 Ke1d1 Kd5e5 Kd1c2 Ke5d4 Kc2d2
26 00:24 11.436.559 0 +0.87 Kh2h1 f6f5 Kh1g1 Kg5f6 Kg1f1 Kf6e5 Kf1e1 Ke5d5 Ke1d1 Kd5e5 Kd1c2 Ke5d4 Kc2d2
27 00:27 13.310.103 0 +0.87 Kh2h1 f6f5 Kh1g1 Kg5f6 Kg1f1 Kf6e5 Kf1e1 Ke5d5 Ke1d1 Kd5e5 Kd1c2 Ke5d4 Kc2d2
27 00:28 13.605.267 0 +0.87 Kh2h1 f6f5 Kh1g1 Kg5f6 Kg1f1 Kf6e5 Kf1e1 Ke5d5 Ke1d1 Kd5e5 Kd1c2 Ke5d4 Kc2d2
28 00:32 15.923.537 0 +0.87 Kh2h1 f6f5 Kh1g1 Kg5f6 Kg1f1 Kf6e5 Kf1e1 Ke5d5 Ke1d1 Kd5e5 Kd1c2 Ke5d4 Kc2d2
28 00:33 16.171.938 0 +0.87 Kh2h1 f6f5 Kh1g1 Kg5f6 Kg1f1 Kf6e5 Kf1e1 Ke5d5 Ke1d1 Kd5e5 Kd1c2 Ke5d4 Kc2d2
29 00:37 18.167.561 0 +0.87 Kh2h1 f6f5 Kh1g1 Kg5f6 Kg1f1 Kf6e5 Kf1e1 Ke5d5 Ke1d1 Kd5e5 Kd1c2 Ke5d4 Kc2d2
29 00:38 18.392.088 0 +0.87 Kh2h1 f6f5 Kh1g1 Kg5f6 Kg1f1 Kf6e5 Kf1e1 Ke5d5 Ke1d1 Kd5e5 Kd1c2 Ke5d4 Kc2d2
30 00:44 21.092.890 0 +0.87 Kh2h1 f6f5 Kh1g1 Kg5f6 Kg1f1 Kf6e5 Kf1e1 Ke5d5 Ke1d1 Kd5e5 Kd1c2 Ke5d4 Kc2d2
30 00:45 21.584.362 0 +0.87 Kh2h1 f6f5 Kh1g1 Kg5f6 Kg1f1 Kf6e5 Kf1e1 Ke5d5 Ke1d1 Kd5e5 Kd1c2 Ke5d4 Kc2d2
31 00:53 25.491.555 0 +0.87 Kh2h1 f6f5 Kh1g1 Kg5f6 Kg1f1 Kf6e5 Kf1e1 Ke5d5 Ke1d1 Kd5e5 Kd1c2 Ke5d4 Kc2d2
31 00:55 26.256.042 0 +0.87 Kh2h1 f6f5 Kh1g1 Kg5f6 Kg1f1 Kf6e5 Kf1e1 Ke5d5 Ke1d1 Kd5e5 Kd1c2 Ke5d4 Kc2d2
32 01:06 33.665.312 0 +0.76 Kh2h1 f6f5 Kh1g1 Kg5f6 Kg1f1 Kf6e5 Kf1e1 Ke5d5 Ke1d1 h7h6 Kd1e1 Kd5e5 Ke1e2 Ke5e4 Ke2f1
32 01:21 42.746.450 0 +0.77 Kh2g1
32 01:22 43.411.357 0 +0.76 Kh2h1 f6f5 Kh1g1 Kg5f6 Kg1f1 Kf6e5 Kf1e1 Ke5d5 Ke1d1 h7h6 Kd1e1 Kd5e5 Ke1e2 Ke5e4 Ke2f1
32 01:23 43.826.618 0 +0.76 Kh2h1 f6f5 Kh1g1 Kg5f6 Kg1f1 Kf6e5 Kf1e1 Ke5d5 Ke1d1 h7h6 Kd1e1 Kd5e5 Ke1e2 Ke5e4 Ke2f1
33 01:45 60.285.889 0 +1.06 Kh2h1
33 02:12 79.053.406 0 +1.76 Kh2h1
33 02:53 106.335.098 0 +3.01 Kh2h1 f6f5 Kh1g1 Kg5f6 Kg1f1 Kf6e5 Kf1e1 Ke5d5 Ke1d1 h7h6 Kd1e1 Kd5e5 Ke1f1 Ke5d4 Kf1g1 Kd4d3 Kg1h2 Kd3e2 f2f4 Ke2e3
33 02:58 108.896.756 0 +3.01 Kh2h1 f6f5 Kh1g1 Kg5f6 Kg1f1 Kf6e5 Kf1e1 Ke5d5 Ke1d1 h7h6 Kd1e1 Kd5e5 Ke1f1 Ke5d4 Kf1g1 Kd4d3 Kg1h2 Kd3e2 f2f4 Ke2e3
8/9/2007 7:49:07 PM, Time for this analysis: 00:03:00, Rated time: 57:47

Vinvin
Posts: 4457
Joined: Thu Mar 09, 2006 8:40 am
Full name: Vincent Lejeune

Re: 83 nice Testpositions (Long and big post).

Post by Vinvin » Mon Aug 20, 2007 7:22 pm

Look at the bottom of the page : http://members.aol.com/MuellerLamprecht ... hengl.html
(may be copy-past the link, direct click may give troubles)

Test 6 Original by John Nunn

This position is extremely complex. The reason is that the pawns are not yet fixed, and Black can still choose between various possibilities for arranging his pawns. Each arrangement gives rise to a network of corresponding squares, and White is not sure which network is going to arise. In order to understand the play, it is necessary to analyse first the positions in which Black has committed his pawns. The two key positions are given as Z1 (in which Black plays ...f5) and Z2 (in which Black plays ...h5) below.
...

ardee

Re: 83 nice Testpositions (Long and big post).

Post by ardee » Mon Aug 20, 2007 7:45 pm

Uri Blass wrote:<snipped>
George Tsavdaris wrote:

[D]4R3/3p4/KB1P3p/7P/8/p5pP/Pp3npb/1R3nkq w - - 0 1 bm Re3
This is wrong because movei finds Re6 with forced mate score

New game
4R3/3p4/KB1P3p/7P/8/p5pP/Pp3npb/1R3nkq w - - 0 1

Analysis by Movei00_8_438:
...
+- (#13) Depth: 15 00:00:14 9849kN
1.Re8-e6 d7xe6 2.d6-d7 e6-e5 3.d7-d8Q e5-e4 4.Qd8-e8 e4-e3 5.Bb6-a5 Nf2xh3 6.Qe8xe3+ Nh3-f2 7.Qe3xa3 Nf2-h3 8.Ba5-b6+ Nh3-f2 9.Rb1xb2 Nf1-d2 10.Rb2xd2 Kg1-f1 11.Rd2xf2+ g3xf2 12.Qa3-d3+ Kf1-e1 13.Bb6-a5#
You're right about a forced mate starting with 1. Re6, but I think the actual mate is a move shorter than you said. As you walk through the line you posted, you'll see it.

ardee

Re: 83 nice Testpositions (Long and big post).

Post by ardee » Mon Aug 20, 2007 7:51 pm

You're right, there's a forced mate with 1. Re6! (but one move shorter than you posted, I think).

I wonder if 1. Re3 can also win...

Vinvin
Posts: 4457
Joined: Thu Mar 09, 2006 8:40 am
Full name: Vincent Lejeune

Re: 83 nice Testpositions (Long and big post).

Post by Vinvin » Sun Sep 09, 2007 9:29 am

Could someone post a corrected version of this test pack, please ?
Thanks, Vincent.
George Tsavdaris wrote:I wonder what Anthony Cozzie would say if he sees the results of a top engine on all these positions.
Would he still believe that current top engines more or less are close to play perfect Chess?
Perhaps in engine-human or engine-engine they are close to it, although i disagree in this too, but in solving testpositions they have many many things to learn more.....


8/6p1/P1b1pp2/2p1p3/1k4P1/3PP3/1PK5/5B2 w - - 0 1 bm Bg2;
r1bqk2r/ppp1ppbp/2n3p1/3p4/2PP1B2/2P1P3/P4PPP/R2QKBNR w KQkq - 0 1 am cxd5; bm Nf3;
4r1k1/pp4p1/6p1/3q1pP1/2rPp2P/1QPnP3/PP4K1/1R2BR2 b - - 0 1 bm f4;
4k1rr/1R1R3p/8/8/8/2K5/7P/8 w k - 0 1 bm Rd2;
8/3R1P2/1ppP1p2/3r4/8/8/K4k2/8 b - - 0 1 bm f5;
r2q1r2/1b2bpkp/p3p1p1/2ppP1P1/7R/1PN1BQR1/1PP2P1P/4K3 w - - 0 1 bm Qf6+;
4k3/p7/B1bB1pp1/4n3/p2KP3/8/6P1/8 w - - 0 1 am Bxe5;
1R6/8/8/5bp1/4p2k/8/B1p2PKP/8 w - - 0 1 bm Rb1;
3k4/4pp2/n2n4/5BN1/3N4/b7/4K3/8 w - - 0 1 bm Nxf7+;
8/2B2pPb/7k/4K3/3p2P1/8/8/8 w - - 0 1 bm g8N+;
r5k1/7p/4p1pP/4P1P1/R3b3/8/7K/N7 w - - 0 1 am Rxe4; bm Rxa8;
r1b2rk1/pp2bppp/4p3/1PPp4/1n3B2/2N1P3/q3BPPP/2RQ1RK1 b - - 0 1 am Qa5; bm Qa3;
rn2k3/p4ppr/1p2p1n1/2ppP1Bp/q2P3P/P1P2QN1/2P2PP1/R4K1R w q - 0 1 bm Nf5;
rqb1k2r/1p3p1p/p1n2Pp1/3Qb3/4N3/4B3/PP2B1P1/R4R1K b kq - 0 1 am O-O; bm Bf5 Qc7;
8/p7/5k2/pPp1p3/2P3Kb/8/8/3B4 w - - 0 1 am Kxh4;
r3r3/p2n1pk1/2qpp2p/1p5n/3PN2p/1PPQ1P2/P1BB1P2/R6K w - - 0 1 bm Bxh6+;
6r1/2rp1kpp/2qQp3/p3Pp1P/1pP2P2/1P2KP2/P5R1/6R1 w - - 0 1 bm Rxg7+;
7b/8/kq6/8/8/1N2R3/K2P4/8 w - - 0 1 bm Nd4;
2r1r3/1b1n1pkp/1qnBp1p1/4P1N1/2R1B3/8/p2Q1PPP/3R2K1 w - - 0 1 bm Nxf7;
r5k1/p4n1p/6p1/2qPp3/2p1P1Q1/8/1rB3PP/R4R1K b - - 0 1 am Rxc2; bm Rf8;
8/pR4pk/1b6/2p5/N1p5/8/PP1r2PP/6K1 b - - 0 1 bm Rxb2;
nqr3k1/3b1p2/p2p2pp/1p1Pp1N1/1P2P3/1B5P/P2Q1PP1/5RK1 w - - 0 1 bm Ne6;
r1b1q1k1/1p2rppn/p3p2p/3pP2Q/3P4/K1PBN2P/PP4P1/R4R2 w - - 0 1 bm Bxh7+ Rf6;
2r2rk1/1bpR1p2/1pq1pQp1/p3P2p/P1PR3P/5N2/2P2PPK/8 w - - 0 1 bm Kg3;
1r4r1/3q1npk/2b1pbnp/Rp1p4/1N1P3P/2PQ1pP1/1K3B2/5B1R w - - 0 1 bm Qxg6+;
2b1rk2/5p2/p1P5/2p2P2/2p5/7B/P7/2KR4 w - - 0 1 bm f6;
4rk2/5p2/p1P2P2/2p5/2p5/7b/P7/2KR4 w - - 0 2 bm c7;
r7/ppK2P1P/8/2P5/3k4/8/P7/8 w - - 0 1 am Kxb7; bm Kd7;
r4rk1/bpp2pp1/p1np1n1p/3Np3/1PP5/P2PPNPq/1BQ2P1P/R4RK1 b - - 0 1 bm Ng4;
r4rk1/bpN2pp1/p1np3p/4p3/1PP3n1/P2PPNPq/1BQ2P1P/R4RK1 b - - 0 2 bm f5;
8/3bkp2/n7/1rN1P3/2R3P1/2R4K/2p5/8 b - - 0 1 am Nb4; bm Rxc5;
8/7p/5p2/6k1/8/6P1/5PPK/8 w - - 0 1 bm Kh1;
4R3/3p4/KB1P3p/7P/8/p5pP/Pp3npb/1R3nkq w - - 0 1 bm Re3;
2kr1nr1/pbp1qp2/1p2pn1p/8/3Pp2Q/P1P3N1/2PBBPPP/R3K2R w KQ - 0 1 am O-O; bm Bxh6;
2rr2k1/pp2b1pp/1nb1p3/5p2/1P1B4/P2BPP2/3NK1PP/R6R b - - 0 1 bm e5;
r3r3/5p1p/pR3np1/1p1q4/kP6/P1Q2PPB/2P4P/1K6 w - - 0 1 am Be6; bm Bf1;
8/4R1p1/3P4/8/4pp2/PP3k2/2P2b2/1K6 b - - 0 1 bm Bc5;
8/6p1/3PR3/2b5/4pp2/PP3k2/2P5/1K6 b - - 0 2 bm Bxd6;
rnb1k2Q/1p5p/p7/4p3/4q3/8/PPP2R1P/2K5 b - - 0 1 am Kd7; bm Ke7;
rnb4Q/1p5p/p1k5/4p3/4q3/8/PPPR3P/2K5 w - - 0 1 am Qxc8+; bm Qf6;
r3r1k1/1p3pp1/p1bp1b1B/2q1n3/2PN4/1P5P/2BR1QP1/5RK1 w - - 0 1 bm b4;
8/5p2/1ppp4/1k6/5P2/7P/8/5K2 b - - 0 1 am Ka5 Kc5; bm Ka4;
r1b1r1k1/1p1nnpp1/pq1Bp2p/8/4N3/6Q1/2PRB1PP/5R1K w - - 0 1 bm Bc7;
6k1/1bq1bpp1/p6p/2p1pP2/1rP1P1P1/2NQ4/2P4P/K2RR3 b - - 0 1 bm Bd5;
6k1/4pp1p/3p2p1/7n/p3P3/r4P2/P1PK2P1/1R5R w - - 0 1 bm Rxh5;
5b2/p2k1p2/P3pP1p/n2pP1p1/1p1P2P1/1P1KBN2/7P/8 w - - 0 1 bm Nxg5;
4r2k/Q5pp/3pN3/1P1P1n2/P4P2/2r4q/6RP/3R2K1 w - - 0 1 am Qd7; bm Re1;
1rqr2k1/pb3p2/n4b1p/3PN1p1/2pp4/P5P1/1PQB1PBP/2R1R1K1 w - - 0 1 am Nxc4; bm Nxf7;
2rr2k1/pp1q1bp1/4p2p/2npP3/5N1P/1Q4P1/PP3P2/1BRR2K1 w - - 0 1 bm Rxc5;
r2r2k1/2b1qp1p/b1p3p1/p1p1p3/2P1P3/1PN1BP2/P1Q3PP/R2R2K1 b - - 0 1 bm Rd4;
r1b1r1k1/p3qp1p/1ppp1npb/4n3/1PPBP3/2N2N1P/P1Q1BPP1/3RR1K1 w - - 0 1 bm c5;
r4rk1/1b1n1pb1/3p2p1/1p1Pq1Bp/2p1P3/2P2RNP/1PBQ2P1/5R1K w - - 0 1 bm Nf5 Nxh5;
3Rnk1r/5ppp/4p3/8/PN6/7P/1P2bPP1/6K1 w - - 0 1 bm f3;
r2qk2r/pp3ppp/2p1pn2/4n3/1b6/3P2PP/PPPN1PB1/R1BQK2R b KQkq - 0 1 bm h5;
rnbqnrk1/5ppp/pp1b4/3NpP2/P2N4/8/1PP1B1PP/R1BQ1R1K w - - 0 1 bm f6;
rn1qk2r/pp3ppp/4b3/8/2pP1p2/B4N2/P3Q1PP/R4RK1 w kq - 0 1 bm d5;
r3r1k1/pp1bp2p/1n2q1P1/6b1/1B2B3/5Q2/5PPP/1R3RK1 w - - 0 1 bm Bd2;
r1b1r1k1/p2q1ppp/np2n3/3p1NBQ/8/6PB/P4P1P/1R2R1K1 w - - 0 1 bm Bf6;
r1b1r1k1/p2q1p1p/np2np2/3p1N1Q/8/6PB/P4P1P/1R2R1K1 w - - 0 2 bm Qh6;
r1b1r1k1/p2q1p1p/np2nBp1/3p1N1Q/8/6PB/P4P1P/1R2R1K1 w - - 0 2 bm Qh6;
r3k2r/4b2p/p1n3pN/1p1q1p2/5B2/3p1P2/PP4PP/2RQR2K w kq - 0 1 bm Rxc6;
2k3nr/1ppr1qpp/p4p2/3P3b/1b6/4BN1P/PP1N1PP1/2RQR1K1 w - - 0 1 bm Nc4;
5r2/1p4r1/3kp1b1/1Pp1p2p/2PpP3/q2B1PP1/3Q2K1/1R5R b - - 0 1 bm Rxf3;
5r1k/1P4pp/3P1p2/4p3/1P5P/3q2P1/Q2b2K1/B3R3 w - - 0 1 bm Qf7;
2rq1rk1/pb3p1p/1p2pbp1/3p3R/2PP4/PP5R/1B3PPP/3Q1BK1 b - - 0 1 am gxh5; bm dxc4;
r1b2rn1/1ppn3k/p4q1p/3P1p2/1p3Q2/1NNB4/P5PP/4RRK1 w - - 0 1 bm Re6;
8/4kpbn/p1p3p1/Pp2p2p/1P2Pn2/N1P1BP2/5P1P/5BK1 w - - 0 1 bm Nxb5;
2r2rk1/p1q1bpp1/1p6/n2R4/8/P4N2/1B2QPPP/5RK1 w - - 0 1 bm Rh5;
r4rk1/1pp2ppp/8/p2q4/Q7/2P4P/PP2nP1K/RNB2R2 b - - 0 1 bm Ra6;
8/4k3/p2p2p1/P1pPn2p/1pP1P2P/1P1NK1P1/8/8 w - - 0 1 am Nxe5; bm g4;
8/1p3p2/p4kpp/1PPp4/P7/7P/5K1P/8 b - - 0 1 am axb5; bm Ke6 Ke7;
r3rnk1/3qbppp/1p2p1n1/pPppP2N/3P3P/2P2NP1/1P3PK1/R1BQR3 w - - 0 1 bm Bh6;
6k1/1p2q2p/5Qp1/3p2K1/3P1PP1/8/7P/8 b - - 0 1 bm h6+;
8/5R2/2p5/8/7P/1K2b3/P3kp2/8 w - - 0 1 bm Kc2;
4kr2/5p1K/3p1Q2/1p4P1/4P3/1PP5/7b/8 w - - 0 1 bm Kh6;
4kr2/5pK1/3p1Q2/1p4P1/4P3/1PP3b1/8/8 w - - 0 1 bm c4;
3r1rk1/2p1qppp/p1n5/1p1bP1N1/3pNQ2/1P6/PP3PPP/2RR2K1 w - - 0 1 bm Rxc6;
7r/4p1k1/p3Pppp/1p6/3N1R2/3PQ2P/qr4b1/5RK1 w - - 0 1 bm Rxf6;
8/4K2p/6pr/5pk1/1pB2R2/p4PP1/8/8 w - - 0 1 bm Rg4;
8/3R1P2/1ppP1p2/3r4/8/K7/p4k2/8 w - - 0 1 am Kxa2; bm Kb2;
q3nrk1/4bppp/3p4/r3nPP1/4P2P/NpQ1B3/1P4B1/1K1R3R b - - 0 1 bm Nc7;
8/8/7p/3KNN1k/2p4p/8/3P2p1/8 w - - 0 1 bm Kc6;
r3qb1k/1b4p1/p2pr2p/3n4/Pnp1N1N1/6RP/1B3PP1/1B1QR1K1 w - - 0 1 bm Nxh6;
r3qb1k/1b4p1/p2pr2N/3n4/Pn2N3/2p3RP/1B3PP1/1B1QR1K1 w - - 0 2 bm Nf5;
2b1r3/r2ppN2/4Bk2/1p1p1b2/pP1P4/2P3R1/PP3PP1/2K5 w - - 0 1 am Bxd5; bm Bxf5;
2b1r3/r2ppN2/8/1p1p1k2/pP1P4/2P3R1/PP3PP1/2K5 w - - 0 1 bm Nd6+;
2r1k2r/pp1qppbp/6p1/5b2/1nPP4/4PNB1/P4PPP/R2QKB1R w KQk - 0 1 am Kd2; bm Rc1;
r1b2rk1/2q1bppp/p1npp3/1pnB1N2/4P1P1/2N1B3/PPP1QP1P/2KR2R1 b - - 0 1 am exd5 exf5; bm Bb7;
8/Nprr1p1p/1n3Pp1/p2pP1k1/PbpP1R2/6P1/RP4NP/6K1 w - - 0 1 bm h4;
r1q2rk1/p2bb2p/1p1p2p1/2pPp2n/2P1PpP1/3B1P2/PP2QR1P/R1B2NK1 b - - 0 1 bm Bxg4;

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beachknight
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Re: 83 nice Testpositions (Long and big post).

Post by beachknight » Sun Sep 09, 2007 10:06 am

same request.

Thanks.
hi, merhaba, hallo HT

Vinvin
Posts: 4457
Joined: Thu Mar 09, 2006 8:40 am
Full name: Vincent Lejeune

Re: 83 nice Testpositions (Long and big post).

Post by Vinvin » Wed Sep 12, 2007 10:45 pm

Is George Tsavdaris somewhere around ?

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George Tsavdaris
Posts: 1624
Joined: Thu Mar 09, 2006 11:35 am

Re: 83 nice Testpositions (Long and big post).

Post by George Tsavdaris » Thu Sep 20, 2007 9:12 pm

ardee wrote:You're right, there's a forced mate with 1. Re6! (but one move shorter than you posted, I think).

I wonder if 1. Re3 can also win...
It can. After the 1...Nd1 you proposed, we have the forced moves for black:

1... Nd1 2. Rd3+ Nf2 3. Rd4 Nxh3 4. Re4+ Nf2 5. Re6 dxe6 6. d7 e5 7. d8N e4 8. Ne6 e3 9. Nf4 e2 10. Nxe2# 1-0
After his son's birth they've asked him:
"Is it a boy or girl?"
YES! He replied.....

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