peter wrote: ↑Tue May 29, 2018 8:26 pm
BBauer wrote: ↑Tue May 29, 2018 8:14 pm
With 30. ..h5 black destroys his fortress.
Better is 30. ..Be6. After this move I cannot see any progress.
Instead of hopping in at the end of output lines, try this, Bernhard:
http://talkchess.com/forum3/viewtopic.p ... 21#p763821
If you then still get from the starting position a drawing line only , let's discuss yours.
You should be able to reproduce mine with some Forward- Backward and at least should be able to get "Bingo- Evals" of hits of won tablebase positions at the given ends of the .pgn- lines.
Not to have to discuss positions after 30 moves, let's stick to the first 15 ones, after those everything should be clear with full Syzygys.
I folowed your line up to the following position after 15. Ra7 {132.6/61 CFtbs}
6k1/R5p1/5p1p/3b1K2/3B4/8/8/8 b - - 19 15
Here sf gives
FEN: 6k1/R5p1/5p1p/3b1K2/3B4/8/8/8 b - - 19 15
Stockfish:
40/44 00:02 8.559k 3.201k -3,04 Bd5-c4 Bd4-c5 Bc4-d5 Kf5-f4 Bd5-e6 Bc5-d4 Be6-d5 Kf4-e3 Bd5-e6 Ke3-e4 Kg8-h8 Bd4-c5 Kh8-g8 Ke4-f4 h6-h5 Ra7-e7 Be6-g4 Kf4-e3 Bg4-d1 Re7-a7 Bd1-c2 Ke3-f3 Bc2-g6 Ra7-a8+ Kg8-f7 Ra8-f8+ Kf7-e6 Kf3-g3 Bg6-e4 Kg3-f4 Be4-c6 Bc5-d4 Bc6-a4 Rf8-h8 Ba4-d1 Rh8-a8 Ke6-f7 Ra8-a7+ Kf7-g8 Ra7-c7 Bd1-e2 Rc7-c8+ Kg8-f7 Bd4-c5
41/47 00:03 10.310k 3.235k -3,04 Bd5-c4 Bd4-c5 Bc4-d5 Kf5-f4 Bd5-e6 Bc5-d4 Be6-d5 Kf4-e3 Bd5-e6 Ke3-e4 Kg8-h8 Bd4-c5 Kh8-g8 Ke4-f4 h6-h5 Ra7-e7 Be6-g4 Kf4-e3 Bg4-d1 Re7-a7 Bd1-c2 Ke3-f3 Bc2-g6 Ra7-a8+ Kg8-f7 Ra8-f8+ Kf7-e6 Kf3-g3 Bg6-f5 Rf8-b8 Ke6-f7 Rb8-b7+ Kf7-g8 Kg3-h4 Bf5-g4 Rb7-e7 Kg8-h7 Kh4-g3 Kh7-g8 Re7-a7 Bg4-e2 Ra7-c7 Be2-g4 Rc7-b7
42/45 00:05 16.583k 3.247k -3,04 Bd5-c4 Bd4-c5 Bc4-d5 Kf5-f4 Bd5-e6 Bc5-d4 Be6-d5 Kf4-e3 Bd5-e6 Ke3-e4 Kg8-h8 Bd4-c5 Kh8-g8 Ke4-f4 h6-h5 Ra7-e7 Be6-g4 Kf4-e3 Bg4-d1 Re7-a7 Bd1-c2 Ke3-f3 Bc2-g6 Ra7-a8+ Kg8-f7 Ra8-f8+ Kf7-e6 Kf3-g3 Bg6-f5 Rf8-b8 Ke6-f7 Rb8-b7+ Kf7-g8 Kg3-h4 Bf5-g4 Rb7-e7 Kg8-h7 Kh4-g3 Kh7-g8 Re7-a7 Bg4-e2 Bc5-d4 Be2-g4 Bd4-c3 Bg4-e6
43/49 00:07 23.003k 3.237k -3,04 Bd5-c4 Bd4-c5 Bc4-d5 Kf5-f4 Bd5-e6 Bc5-d4 Be6-d5 Kf4-e3 Bd5-e6 Ke3-e4 Kg8-h8 Bd4-c5 Kh8-g8 Ke4-f4 h6-h5 Ra7-e7 Be6-g4 Kf4-e3 Bg4-d1 Re7-a7 Bd1-c2 Ke3-f3 Bc2-g6 Ra7-a8+ Kg8-f7 Ra8-f8+ Kf7-e6 Kf3-g3 Bg6-f5 Rf8-b8 Ke6-f7 Rb8-b7+ Kf7-g8 Kg3-h4 Bf5-g4 Rb7-e7 Kg8-h7 Kh4-g3 Kh7-g8 Re7-a7 Bg4-e2 Kg3-h4 Be2-f3 Bc5-d4 Bf3-g4 Kh4-g3 Bg4-e2 Ra7-a8+ Kg8-f7
44/47 00:13 40.816k 3.133k -3,04 Bd5-c4 Bd4-c5 Bc4-d5 Kf5-f4 Bd5-e6 Bc5-d4 Be6-d5 Kf4-e3 Bd5-e6 Ke3-e4 Kg8-h8 Bd4-c5 Kh8-g8 Ra7-c7 h6-h5 Rc7-e7 Be6-g4 Ke4-d5 h5-h4 Kd5-e4 Bg4-h3 Ke4-f4 Bh3-g2 Kf4-f5 Kg8-h7 Bc5-d4 h4-h3 Bd4-g1 Bg2-f3 Re7-a7 Bf3-g2 Ra7-c7 Bg2-d5 Kf5-g4 Bd5-e6+ Kg4-g3 Be6-f5 Rc7-e7 Kh7-g8 Re7-a7 Bf5-e6 Ra7-b7 Be6-f5 Bg1-d4 Bf5-e6 Rb7-b8+ Kg8-f7
45/53 00:14 46.264k 3.127k -3,04 Bd5-c4 Bd4-c5 Bc4-d5 Ra7-e7 Bd5-c4 Bc5-d6 Bc4-b3 Re7-d7 Bb3-c4 Bd6-b4 Bc4-a2 Rd7-d8+ Kg8-h7 Bb4-c5 Ba2-c4 Rd8-d7 Bc4-f1 Rd7-a7 Bf1-h3+ Kf5-e4 Kh7-g8 Ke4-d5 Bh3-g4 Bc5-f2 Kg8-f8 Bf2-g3 Bg4-f3+ Kd5-d4 Kf8-g8 Bg3-d6 h6-h5 Kd4-e3 Bf3-d1 Ke3-e4 Bd1-g4 Ke4-f4 Bg4-e6 Ra7-a8+ Kg8-h7 Kf4-e4 h5-h4 Ra8-a7 Kh7-g8 Ke4-f4 Be6-h3 Kf4-e3 Bh3-e6 Bd6-e7
46/55 00:17 53.904k 3.050k -3,04 Bd5-c4 Bd4-c5 Bc4-d5 Ra7-e7 Bd5-c4 Bc5-d6 Bc4-b3 Re7-d7 Bb3-c4 Bd6-b4 Bc4-a2 Rd7-d8+ Kg8-h7 Bb4-c5 Ba2-c4 Rd8-d7 Bc4-f1 Rd7-a7 Bf1-h3+ Kf5-e4 Kh7-g8 Ke4-d5 Bh3-g4 Bc5-d4 h6-h5 Ra7-a8+ Kg8-f7 Kd5-e4 Bg4-e6 Bd4-c5 Be6-d7 Ra8-f8+ Kf7-g6 Ke4-f4 h5-h4 Bc5-d4 Bd7-e6 Rf8-a8 Kg6-f7 Ra8-a7+ Kf7-f8 Bd4-c5+ Kf8-g8 Ra7-e7 Be6-h3 Kf4-e4 Kg8-h7 Re7-a7 Kh7-g8 Bc5-d6 Bh3-e6
47/50 00:26 81.360k 3.019k -3,04 Bd5-c4 Bd4-c5 Bc4-d5 Ra7-e7 Bd5-c4 Bc5-d6 Bc4-b3 Re7-d7 Bb3-c4 Bd6-b4 Bc4-a2 Rd7-d8+ Kg8-h7 Bb4-c5 Ba2-c4 Rd8-d7 Bc4-f1 Rd7-a7 Bf1-h3+ Kf5-e4 Kh7-g8 Ke4-d5 Bh3-g4 Bc5-d4 h6-h5 Ra7-a8+ Kg8-f7 Kd5-e4 Bg4-e6 Bd4-c5 Be6-d7 Ra8-f8+ Kf7-g6 Ke4-f4 h5-h4 Bc5-d4 Bd7-e6 Rf8-a8 Kg6-f7 Ra8-a7+ Kf7-f8 Bd4-c5+ Kf8-g8 Ra7-e7 Be6-h3 Bc5-b4 Bh3-f1 Re7-a7 Bf1-g2
48/56 00:33 98.043k 2.889k -3,04 Bd5-c4 Bd4-c5 Bc4-d5 Ra7-e7 Bd5-c4 Bc5-d6 Bc4-b3 Re7-d7 Bb3-c4 Bd6-b4 Bc4-a2 Rd7-d8+ Kg8-h7 Bb4-c5 Ba2-c4 Rd8-d7 Bc4-f1 Rd7-a7 Bf1-h3+ Kf5-e4 Kh7-g8 Ke4-d5 Bh3-g4 Bc5-d4 h6-h5 Ra7-a8+ Kg8-f7 Kd5-e4 Bg4-e6 Bd4-c5 Be6-d7 Ra8-f8+ Kf7-g6 Ke4-f4 h5-h4 Bc5-d4 h4-h3 Rf8-h8 Kg6-f7 Bd4-c3 g7-g5+ Kf4-g3 Kf7-g7 Rh8-d8 Bd7-e6 Rd8-b8 g5-g4 Bc3-d4 Kg7-f7 Rb8-b7+ Kf7-g6 Rb7-a7
49/55 00:50 141.256k 2.790k -3,04 Bd5-c4 Bd4-c5 Bc4-d5 Ra7-e7 Bd5-c4 Bc5-d6 Bc4-b3 Re7-d7 Bb3-c4 Bd6-b4 Bc4-a2 Rd7-d8+ Kg8-h7 Bb4-c5 Ba2-c4 Rd8-d7 Bc4-f1 Rd7-a7 Bf1-h3+ Kf5-e4 Kh7-g8 Ke4-d5 Bh3-g4 Bc5-d4 h6-h5 Ra7-a8+ Kg8-f7 Kd5-e4 Bg4-e6 Bd4-c5 Be6-d7 Ra8-f8+ Kf7-g6 Ke4-f4 h5-h4 Bc5-d4 h4-h3 Rf8-h8 Kg6-f7 Bd4-c3 g7-g5+ Kf4-g3 Kf7-g7 Rh8-d8 Bd7-e6 Rd8-d6 Kg7-f7 Bc3-d4 f6-f5 Kg3xh3 f5-f4+ Kh3-g2 Kf7-e7 Rd6-b6
50/59 01:00 167.898k 2.790k -3,04 Bd5-c4 Bd4-c5 Bc4-d5 Ra7-e7 Bd5-c4 Bc5-d6 Bc4-b3 Re7-d7 Bb3-c4 Bd6-b4 Bc4-a2 Rd7-d8+ Kg8-h7 Bb4-c5 Ba2-c4 Rd8-d7 Bc4-f1 Kf5-f4 Bf1-h3 Rd7-a7 Kh7-g8 Bc5-d4 Bh3-g2 Kf4-e3 Kg8-f8 Bd4-c5+ Kf8-g8 Ke3-d4 Bg2-f3 Bc5-b4 h6-h5 Kd4-e3 Bf3-g4 Ra7-b7 Bg4-e6 Rb7-b8+ Kg8-h7 Bb4-f8 Kh7-g8 Bf8-a3+ Kg8-f7 Rb8-b7+ Kf7-g8 Rb7-a7 h5-h4 Ba3-e7 Be6-f5 Ra7-c7 Bf5-e6 Ke3-f3 Be6-f5 Be7-c5 h4-h3 Kf3-g3 h3-h2
51/59 01:14 206.727k 2.784k -3,04 Bd5-c4 Bd4-c5 Bc4-d5 Ra7-e7 Bd5-c4 Bc5-d6 Bc4-b3 Re7-d7 Bb3-c4 Bd6-b4 Bc4-a2 Rd7-d8+ Kg8-h7 Bb4-c5 Ba2-c4 Rd8-d7 Bc4-f1 Kf5-f4 Bf1-h3 Rd7-a7 Kh7-g8 Bc5-d4 Bh3-g2 Kf4-e3 Kg8-f8 Bd4-c5+ Kf8-g8 Ke3-d4 Bg2-f3 Bc5-b4 h6-h5 Kd4-e3 Bf3-g4 Ra7-b7 Bg4-e6 Rb7-b8+ Kg8-h7 Bb4-f8 Kh7-g8 Bf8-a3+ Kg8-f7 Rb8-b7+ Kf7-g8 Rb7-a7 h5-h4 Ba3-e7 Be6-f5 Ra7-c7 Bf5-g6 Ke3-f2 Bg6-h7 Be7-c5 Bh7-d3 Rc7-e7 Bd3-f5 Bc5-d4 Kg8-f8
52/63 01:36 266.679k 2.749k -3,04 Bd5-c4 Bd4-c5 Bc4-d5 Ra7-e7 Bd5-c4 Bc5-d6 Bc4-b3 Re7-d7 Bb3-c4 Bd6-b4 Bc4-a2 Rd7-d8+ Kg8-h7 Bb4-c5 Ba2-c4 Rd8-d7 Bc4-f1 Kf5-f4 Bf1-h3 Rd7-a7 Kh7-g8 Kf4-e4 Bh3-e6 Bc5-d6 h6-h5 Bd6-c5 Be6-g4 Ra7-a8+ Kg8-h7 Ra8-a4 Kh7-g8 Ke4-f4 g7-g5+ Kf4-g3 Bg4-e6 Bc5-e7 h5-h4+ Kg3-h2 Kg8-f7 Be7-d8 Kf7-g6 Ra4-a6 Kg6-f7 Kh2-g2 Be6-d5+ Kg2-f2 Bd5-e6 Ra6-d6 g5-g4 Kf2-g2 h4-h3+ Kg2-h2 f6-f5 Bd8-g5 Be6-c8 Rd6-h6 Bc8-d7 Rh6-b6 Bd7-c8 Kh2-g3 Bc8-d7 Rb6-f6+ Kf7-e8 Kg3-h2
So the score is -3.04 and I cannot see your 15. Ra7 {132.6/61 CFtbs}
Sorry.
Could you give a winning line?
Kind regards
Bernhard
PS: In the line I metioned 11. ..Kh7 is a blunder. 11. ..Kf7 holds the draw. As mentioned before, do not push pawns for obvious reasons.