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Subject: Trying to clean up MES test suite

Author: Yuriy Lyapko

Date: 06:51:12 08/19/05


Some time ago I started to check MES suite in order to get it more reliable.
Unfortunately I don't own the book(1234 Modern End Game Studies) and don't know
the whole lines. But anyway the first 400 positions are almost clear.
Here are some doubtful positions from 445 to 534:

8/6k1/4K3/8/3R4/pp6/8/8 w - - bm Rd7+; id "MES.452";
By EGTB Rg4+,Rd1 are also good enough.

1r6/8/6k1/8/8/8/1P6/1K3R2 w - - bm Rf3; id "MES.469";
r7/8/8/7k/8/8/P7/K5R1 w - - bm Kb2; id "MES.470";
7r/KR5P/8/k7/8/8/8/8 w - - bm Re7; id "MES.472";
8/8/7k/8/8/P7/K4r2/6R1 w - - bm Kb3; id "MES.474";
Should be thrown out(verified by EGTB).

r7/ppK2P1P/8/2P5/3k4/8/P7/8 w - - bm Kd7; id "MES.449";
by me this gives only draw, so Kxb7,c6,a4,Kd6 are also good.
If so, position should be thrown out.

5K2/2k2P2/7R/8/8/5r1p/8/8 w - - bm Kg8; id "MES.477";
3r4/8/2Pk4/1R1P2K1/8/8/8/8 w - - bm Kf5; id "MES.484";
8/R1p5/5pP1/8/8/7K/1k6/2r5 w - - bm Rb7+; id "MES.488";
4r1RR/kp6/1p5P/1P6/K7/7P/8/8 w - - bm Rg2; id "MES.527";
I see no win...

6k1/7p/1p1p1p2/1Pp4p/P6r/2KP3P/1P5R/8 w - - bm a5; id "MES.521";
1r5k/5p1p/5p1K/5P2/7P/8/1pp3r1/1R2R3 w - - bm h5; id "MES.533";
I see no draw...

1K6/1P1k4/1P6/8/8/r7/2R5/8 w - - bm Rd2+; id "MES.486";
Almost any move wins...

2k5/1r4p1/3RP1P1/2K5/8/8/8/8 w - - bm Rd5; id "MES.494";
Why Rd5 is better than e.g. Rd1?

3k3r/4Rp2/3Pp2p/3P4/8/1K6/8/8 w - - bm Ra7; id "MES.504";
dxe6 wins even faster...

R7/pP6/k7/6P1/1Pp5/2p5/2Pr4/1K6 w - - bm g6; id "MES.513";
What is wrong with b8=B?

If someone of you has the book, I will appreciate the winning(drawing) line...

Best regards,
George



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