[d]8/2R5/3r4/1b6/1k1pR3/4nP1P/3K4/8 w - - 2 83
As seen by the multi-pv output of Stockfish 12 only by sacrificing the rook can white draw here
Code: Select all
FEN: 8/2R5/3r4/1b6/1k1pR3/4nP1P/3K4/8 w - - 2 83
Stockfish 12:
25/45 00:33 58,803k 1,747k -4.27 Rc7-b7 Ne3-c4+ Kd2-d3 Nc4-e5+ Kd3-c2 Rd6-d5 f3-f4 Ne5-c4 Kc2-d3 Nc4-d6+ Rb7xb5+ Nd6xb5 Re4-e2 Rd5-h5 Re2-h2 Rh5-h4 f4-f5 Nb5-d6 f5-f6 Kb4-c5 Kd3-e2 Kc5-c4 Ke2-f2 Nd6-e4+ Kf2-f3 Ne4xf6 Kf3-g3 Rh4-h6 h3-h4 d4-d3 Kg3-f3 Kc4-c3 Kf3-e3 Nf6-d5+ Ke3-f3 Rh6-f6+ Kf3-g3
25/41 00:33 58,803k 1,747k -4.10 Rc7-c1 Ne3-c4+ Kd2-e2 d4-d3+ Ke2-f2 d3-d2 Rc1-d1 Bb5-c6 Re4-e1 Kb4-c3 Rd1xd2 Nc4xd2 Re1-a1 Rd6-f6 Kf2-g3 Bc6xf3 Kg3-f2 Bf3-e4+ Kf2-g3 Rf6-f3+ Kg3-g4 Be4-f5+ Kg4-g5 Nd2-e4+ Kg5-h6 Rf3xh3+ Kh6-g7 Kc3-d4 Ra1-a4+ Kd4-e3 Ra4-a5 Ke3-f4 Kg7-f7 Rh3-h2 Ra5-a8 Rh2-h6
25/37 00:33 58,803k 1,747k -3.93 Re4-h4 Ne3-c4+ Kd2-d3 Nc4-e5+ Kd3-e4 Ne5-c6 Rh4-h7 Nc6-a5 Rc7-c1 d4-d3 Rc1-b1+ Na5-b3 Rh7-b7 d3-d2 Ke4-e5 Rd6-d8 Rb1-d1 Rd8-e8+ Ke5-f4 Kb4-c5 Rb7-c7+ Kc5-d4 Rc7-b7 Re8-f8+ Kf4-g5 Bb5-e2 Rb7-b4+ Kd4-c5 Rb4xb3 Be2xd1 Rb3-d3
25/36 00:33 58,803k 1,747k -3.85 Kd2-e1 Ne3-c4 Re4xd4 Rd6xd4 Ke1-f2 Rd4-d3 Kf2-g3 Nc4-d2 Kg3-f4 Rd3xf3+ Kf4-g5 Nd2-e4+ Kg5-h6 Ne4-c5 Rc7-e7 Bb5-d3 h3-h4 Rf3-g3 Re7-c7 Nc5-a6 Rc7-f7 Rg3-g6+ Kh6-h5 Kb4-c3 Rf7-f8 Na6-b4 Rf8-c8+ Kc3-d4
25/49 00:33 58,803k 1,747k -3.80 Re4-f4 Ne3-c4+ Kd2-d3 Nc4-a3+ Kd3-d2 Kb4-b3 Rc7-c1 Na3-c4+ Kd2-d1 Bb5-a6 h3-h4 Rd6-g6 Rf4xd4 Rg6-g1+ Kd1-e2 Rg1-g2+ Ke2-d3 Rg2-d2+ Kd3-e4 Ba6-b7+ Ke4-f4 Rd2xd4+ Kf4-g3 Kb3-b2 Rc1-e1 Rd4-d3 Kg3-g4 Bb7xf3+ Kg4-f4 Kb2-c3 Re1-e7 Bf3-a8 Re7-a7 Rd3-f3+ Kf4-g5 Ba8-d5 Ra7-a4 Rf3-h3 Ra4-a1 Rh3-h1
26/53 00:33 58,803k 1,747k -3.75 h3-h4 Ne3-c4+ Kd2-d3 Nc4-e5+ Kd3-d2 Ne5xf3+ Kd2-d1 Bb5-a4+ Kd1-e2 Rd6-f6 Ke2-d3 Ba4-b5+ Kd3-c2 Bb5-c4 Rc7-b7+ Kb4-c5 Re4-e8 Bc4-e6 Rb7-a7 Be6-f5+ Kc2-d1 Kc5-c4 Kd1-e2 Bf5-g4 Ra7-c7+ Kc4-d5 Ke2-d3 Bg4-f5+ Kd3-e2 Nf3-e5 Ke2-d2 Ne5-c4+ Kd2-e1 d4-d3 Re8-d8+ Nc4-d6 Rc7-e7 Kd5-d4 Rd8xd6+ Rf6xd6 h4-h5 Rd6-a6
26/15 00:33 58,803k 1,747k 0.00 Re4xd4+ Rd6xd4+ Kd2xe3 Rd4-h4 Rc7-g7 Kb4-c3 f3-f4 Rh4xh3+ Ke3-e4 Bb5-c4 f4-f5 Bc4-d3+ Ke4-f4 Bd3xf5
26/17 00:33 58,803k 1,747k 0.00 Re4xe3 d4xe3+ Kd2xe3 Rd6-h6 Ke3-f4 Rh6xh3 Kf4-g5 Rh3-h1 f3-f4 Bb5-d3 Rc7-d7 Kb4-c3 f4-f5 Rh1-f1 f5-f6 Rf1xf6
Halogen 7 on the other hand even without syzygy tables plays Re4xc3
Code: Select all
FEN: 8/2R5/3r4/1b6/1k1pR3/4nP1P/3K4/8 w - - 2 83
Halogen 7:
1/3 00:00 53 53k -0.46 Re4xd4+ Rd6xd4+ Kd2xe3
2/3 00:00 348 348k -0.47 Re4xe3 d4xe3+ Kd2xe3
3/4 00:00 1k 726k -0.72 Re4xe3 d4xe3+ Kd2xe3 Bb5-f1
4/6 00:00 3k 957k -0.73 Re4xe3 d4xe3+ Kd2xe3 Rd6-h6 h3-h4 Rh6xh4
5/6 00:00 8k 1,116k -0.75 Re4xe3 d4xe3+ Kd2xe3 Bb5-c4 h3-h4 Kb4-c3
6/8 00:00 21k 1,091k -0.81 Re4xe3 d4xe3+ Kd2xe3 Rd6-h6 h3-h4 Bb5-a4 Ke3-e4 Rh6xh4+
7/9 00:00 60k 1,102k -1.00 Re4xd4+ Rd6xd4+ Kd2xe3 Rd4-h4 Rc7-c8 Rh4xh3 Rc8-b8 Rh3-h1 Ke3-e4
8/9 00:00 118k 1,254k -1.02 Re4xe3 d4xe3+ Kd2xe3 Rd6-h6 Ke3-f4 Rh6xh3 Kf4-g4 Bb5-f1 Rc7-e7
9/7 00:00 186k 1,184k -1.15 Re4xe3 d4xe3+ Kd2xe3 Rd6-h6 Ke3-e4 Rh6xh3 f3-f4
10/11 00:00 355k 1,226k -1.14 Re4xe3 d4xe3+ Kd2xe3 Rd6-h6 Ke3-e4 Rh6xh3 f3-f4 Kb4-b3 Ke4-e5 Rh3-h1 Ke5-f6
11/12 00:00 511k 1,226k -1.21 Re4xe3 d4xe3+ Kd2xe3 Rd6-h6 Ke3-e4 Rh6xh3 f3-f4 Rh3-h4 Ke4-e5 Rh4-h1 Rc7-b7 Rh1-h8
12/12 00:00 961k 1,346k -1.21 Re4xe3 d4xe3+ Kd2xe3 Rd6-h6 h3-h4 Rh6xh4 f3-f4 Rh4-h5 Ke3-e4 Rh5-h4 Ke4-e5 Rh4-h1
13/11 00:01 1,643k 1,436k -1.15 Re4xe3 d4xe3+ Kd2xe3 Rd6-h6 f3-f4 Rh6xh3+ Ke3-d4 Rh3-h4 Kd4-e5 Rh4-h5+ Ke5-e4
14/16 00:02 3,230k 1,456k -1.22 Re4xe3 d4xe3+ Kd2xe3 Rd6-h6 f3-f4 Rh6xh3+ Ke3-e4 Rh3-c3 Rc7-a7 Kb4-c5 f4-f5 Kc5-d6 Ke4-f4 Rc3-c8 Kf4-g4 Rc8-h8
15/13 00:03 5,558k 1,454k -1.25 Re4xe3 d4xe3+ Kd2xe3 Rd6-h6 f3-f4 Rh6xh3+ Ke3-e4 Bb5-d3+ Ke4-e5 Rh3-h5+ Ke5-d4 Bd3-b5 Rc7-b7
16/19 00:05 7,403k 1,474k -1.22 Re4xe3 d4xe3+ Kd2xe3 Rd6-h6 f3-f4 Rh6xh3+ Ke3-e4 Bb5-d3+ Ke4-d4 Bd3-h7 Rc7-c6 Rh3-d3+ Kd4-e5 Rd3-e3+ Ke5-f6 Re3-h3 Kf6-e5 Rh3-h5+ Ke5-d4