From 7ce86df21f09555eeb862dd78e98d0d7af122ce5 Mon Sep 17 00:00:00 2001 From: "Robert Nurnberg @ elitebook" <28635489+robertnurnberg@users.noreply.github.com> Date: Tue, 28 Apr 2026 15:57:28 +0200 Subject: [PATCH] Improve a mate in 21 to a mate in 20 --- matedtrack.epd | 2 +- matetrack.epd | 2 +- matetrackpv.epd | 2 +- 3 files changed, 3 insertions(+), 3 deletions(-) diff --git a/matedtrack.epd b/matedtrack.epd index 104e63d..ba05a49 100644 --- a/matedtrack.epd +++ b/matedtrack.epd @@ -6212,6 +6212,7 @@ RN2r2k/6pP/6P1/5K2/8/8/5R2/8 b - - bm #-19; 8/5p1p/8/3p4/7Q/4K3/5r2/4k3 b - - bm #-19; 7n/1p1K1p1N/bp3p1p/1p2prbr/1P3n1p/B6P/1PB2PP1/k3R3 b - - bm #-19; 1R6/p1B4p/rb5P/pk1K2p1/b5p1/1p2p1p1/1P2P1P1/8 b - - bm #-19; +3q3r/Q3kp1n/1P2P1pp/3Pp3/K3B3/1PP4P/1P2r3/4B3 b - - bm #-19; 8/2p5/7p/2pR3r/8/6R1/2P4r/5K1k b - - bm #-20; 5k2/1p3P2/1P2Pp2/pPp2Pp1/K1p3P1/2p2p2/2P2P2/8 b - - bm #-20; 1Q6/8/8/7p/5n1B/3p4/1KP3bp/6kq b - - bm #-20; @@ -6247,7 +6248,6 @@ B7/p1p5/kb1p4/p3p3/P1N2p2/6p1/7p/1K6 b - - bm #-20; krb2r2/1p1p4/1P1P3P/3N4/8/K5PR/1PPP1PN1/8 b - - bm #-20; 5k2/1Pp2n1p/8/4pK2/3Pp1PB/1p4P1/2p5/Rr6 b - - bm #-20; 8/2p5/6Q1/8/p7/K6p/7r/1k6 b - - bm #-20; -3q3r/Q3kp1n/1P2P1pp/3Pp3/K3B3/1PP4P/1P2r3/4B3 b - - bm #-20; 6b1/pp3pK1/5Bn1/3Nn3/6P1/pp1p4/pk1p4/rrbB4 b - - bm #-20; 2K3bN/6n1/kb2p3/p6n/p1Q3p1/8/6p1/8 b - - bm #-20; 7k/b1p1N1pr/2P3p1/2pB2Pb/1pP3p1/1P3pP1/3P1P1n/4K3 b - - bm #-20; diff --git a/matetrack.epd b/matetrack.epd index 6fc9e25..eace9f4 100644 --- a/matetrack.epd +++ b/matetrack.epd @@ -6212,6 +6212,7 @@ RN2r2k/6pP/6P1/5K2/8/8/6R1/8 w - - bm #20; --:-- @ C0/R-12/K4/P2/X14; 8/4Qp1p/8/3p4/8/4K3/5r2/4k3 w - - bm #20; SFMF9; 7n/1p1K1p1N/bp3p1p/1p2prbr/1P2Rn1p/B6P/1PB2PP1/k7 w - - bm #20; 1R1B4/p6p/rb5P/pk1K2p1/b5p1/1p2p1p1/1P2P1P1/8 w - - bm #20; +3q3r/4kp1n/1P2P1pp/Q2Pp3/K3B3/1PP4P/1P2r3/4B3 w - - bm #20; 8/2p5/7p/2pR3r/8/6R1/2P4r/4K2k w - - bm #21; c0 "was bm #19"; 5k2/1p3P2/1P2Pp2/pPp2Pp1/K1p5/2p2pP1/2P2P2/8 w - - bm #21; 00:00; 1Q6/4B3/8/7p/5n2/3p4/1KP3bp/6kq w - - bm #21; 00:00 @ C0/R2/K3/P4/X16; @@ -6247,7 +6248,6 @@ B7/p1p5/kb1p4/p3p3/P1N2p2/6p1/7p/K7 w - - bm #21; --:-- @ C0/R0/K1/P7/X21; krb2r2/1p1p4/1P1P3P/8/8/K3N1PR/1PPP1PN1/8 w - - bm #21; --:-- @ C0/R0/K2/P3/X18; 5k2/2p2n1p/1P6/4pK2/3Pp1PB/1p4P1/2p5/Rr6 w - - bm #21; 8/2p5/2Q5/8/p7/K6p/7r/1k6 w - - bm #21; -3q3r/4kp1n/1P2P1pp/Q2Pp3/K3B3/1PP4P/1P2r3/4B3 w - - bm #21; 6b1/pp3pK1/5Bn1/3Nn3/6P1/pp1p1B2/pk1p4/rrb5 w - - bm #21; SFMF9; 2K3bN/6n1/kbQ1p3/p6n/p5p1/8/6p1/8 w - - bm #21; SFMF9; 7k/b1p1N1pr/2P3p1/2p3Pb/1pP1B1p1/1P3pP1/3P1P1n/4K3 w - - bm #21; diff --git a/matetrackpv.epd b/matetrackpv.epd index 626ef9a..03268d7 100644 --- a/matetrackpv.epd +++ b/matetrackpv.epd @@ -6212,6 +6212,7 @@ RN2r2k/6pP/6P1/5K2/8/8/6R1/8 w - - bm #20; PV: g2f2 e8e5 f5f4 e5e4 f4f3 e4f4 f3e 8/4Qp1p/8/3p4/8/4K3/5r2/4k3 w - - bm #20; PV: e7h4 d5d4 e3d3 f7f5 h4h1 f2f1 h1h5 f1f2 h5h4 h7h6 h4h1 f2f1 h1g2 f1f2 g2g1 f2f1 g1g3 f1f2 g3h4 h6h5 h4h1 f2f1 h1g2 f1f2 g2g1 f2f1 g1g3 f1f2 g3h4 f5f4 h4h1 f2f1 h1g2 f1f2 g2e4 e1d1 e4h1 f2f1 h1f1; 7n/1p1K1p1N/bp3p1p/1p2prbr/1P2Rn1p/B6P/1PB2PP1/k7 w - - bm #20; PV: e4e1 a1a2 c2b1 a2a1 b1e4 a1a2 e1c1 a2b3 e4c2 b3a2 c2b1 a2a1 b1e4 a1a2 h7f8 a2b3 e4c2 b3a2 c2b1 a2a1 b1e4 a1a2 d7c8 a2b3 f8d7 b3a2 c8b8 a2b3 b8a7 h8g6 a7b6 f4d3 e4d5 b3a4 c1c3 g5e3 f2e3 g6f8 d5b3; 1R1B4/p6p/rb5P/pk1K2p1/b5p1/1p2p1p1/1P2P1P1/8 w - - bm #20; PV: d8c7 b5b4 c7d6 b4b5 d6g3 b5b4 g3d6 b4b5 b8b7 g4g3 b7h7 g5g4 h7d7 b6d4 d5d4 a6c6 h6h7 c6c4 d4e5 c4c8 d7b7 b5a6 b7b8 c8b8 d6b8 a4d7 h7h8q a5a4 h8h7 d7c8 h7c7 a6b5 b8a7 a4a3 c7c5 b5a4 b2a3 b3b2 c5b4; +3q3r/4kp1n/1P2P1pp/Q2Pp3/K3B3/1PP4P/1P2r3/4B3 w - - bm #20; PV: a5a7 e7d6 c3c4 e2e1 a4b5 d8e8 b5b4 e8c8 b6b7 c8c7 c4c5 d6e7 d5d6 e7f6 d6c7 e1e4 b4b5 h7g5 c7c8q h8c8 b7c8q e4f4 e6e7 g5e6 e7e8q f6g5 c8e6 f7e6 e8e6 f4b4 b5b4 g5f4 a7f7 f4e3 e6e5 e3d2 e5c3 d2e2 f7f3; 8/2p5/7p/2pR3r/8/6R1/2P4r/4K2k w - - bm #21; PV: e1f1 h2h4 g3g4 c5c4 d5e5 c4c3 g4g1 h1h2 g1g2 h2h1 g2g4 c7c6 g4g1 h1h2 g1g2 h2h1 g2g4 c6c5 g4g1 h1h2 g1g2 h2h1 g2g4 c5c4 g4g1 h1h2 g1g2 h2h1 g2g4 h1h2 f1f2 h5f5 e5f5 h2h3 g4h4 h3h4 f2f3 h6h5 f5d5 h4h3 d5h5; 5k2/1p3P2/1P2Pp2/pPp2Pp1/K1p5/2p2pP1/2P2P2/8 w - - bm #21; PV: g3g4 f8e7 a4a5 e7f8 a5a4 f8g7 a4a3 g7f8 a3a2 f8e7 a2b1 e7f8 b1c1 f8e7 c1d1 e7f8 d1e1 f8e7 e1f1 e7f8 f1g1 f8e7 g1h2 e7f8 h2g3 f8e7 g3f3 e7f8 f3e4 f8g7 e4d5 g7f8 d5d6 f8g7 d6e7 g7h6 e7f6 h6h7 f7f8r h7h6 f8h8; 1Q6/4B3/8/7p/5n2/3p4/1KP3bp/6kq w - - bm #21; PV: e7h4 f4h3 b8g3 d3d2 g3e3 g1f1 e3d3 f1g1 d3d4 g1f1 d4c4 f1g1 c4c5 g1f1 c5b5 f1g1 b5b6 g1f1 b6a6 f1g1 a6a1 g2f1 a1a7 g1g2 a7b7 g2g1 b7b6 g1g2 b6c6 g2g1 c6c5 g1g2 c5d5 g2g1 d5d4 g1g2 d4e4 g2g1 e4e3 g1g2 e3g3; @@ -6247,7 +6248,6 @@ B7/p1p5/kb1p4/p3p3/P1N2p2/6p1/7p/K7 w - - bm #21; PV: a1b1 d6d5 a8d5 b6d4 b1c2 d krb2r2/1p1p4/1P1P3P/8/8/K3N1PR/1PPP1PN1/8 w - - bm #21; PV: e3d5 f8f3 g2e3 f3e3 c2c3 e3c3 a3a2 c3a3 a2b1 a3a1 b1c2 a1c1 c2d3 c1c3 d3e2 c3e3 e2f1 e3e1 f1g2 e1g1 g2f3 g1g3 f3e2 g3e3 e2d1 e3e1 d1c2 e1c1 c2b3 c1c5 d5c7 c5c7 d6c7 d7d6 h3e3 c8e6 b3b4 e6c4 c7b8q a8b8 e3e8; 5k2/2p2n1p/1P6/4pK2/3Pp1PB/1p4P1/2p5/Rr6 w - - bm #21; PV: b6b7 f7d6 f5e6 d6b7 a1a8 f8g7 h4f6 g7h6 a8g8 b7d8 e6e7 d8c6 e7e8 c2c1q d4d5 b3b2 f6g7 h6g6 g7h8 g6h6 h8f6 b1a1 f6g7 h6g5 g7e5 g5h6 e5g7 h6g5 g7b2 g5h6 b2g7 h6g5 g7a1 g5h6 a1g7 h6g6 g7b2 g6h6 b2c1 e4e3 c1e3; 8/2p5/2Q5/8/p7/K6p/7r/1k6 w - - bm #21; PV: c6g6 h2c2 g6g1 c2c1 g1e3 c7c5 e3d3 c1c2 d3f1 c2c1 f1b5 b1c2 b5e2 c2c3 e2b2 c3d3 b2c1 d3e4 a3a4 e4f3 a4b5 f3g3 b5c5 g3g2 c5d4 h3h2 c1c2 g2g3 c2e4 g3f2 e4h1 f2g3 d4e5 g3f2 e5e4 f2g3 h1f3 g3h4 e4f5 h2h1q f3g4; -3q3r/4kp1n/1P2P1pp/Q2Pp3/K3B3/1PP4P/1P2r3/4B3 w - - bm #21; PV: a5a7 e7d6 c3c4 d6c5 b6b7 d8b6 e1b4 c5d4 a7b6 d4e4 e6f7 e2g2 b7b8q h8b8 b6b8 g2f2 b8g8 f2f7 g8f7 h7g5 f7g6 e4f3 g6f5 f3g3 f5g4 g3f2 b4c5 f2e1 g4g2 e1d1 c5b4 g5f3 g2f3 d1c2 f3c3 c2b1 a4a3 e5e4 c3d2 e4e3 d2d1; 6b1/pp3pK1/5Bn1/3Nn3/6P1/pp1p1B2/pk1p4/rrb5 w - - bm #21; PV: f3d1 g8h7 g4g5 a7a5 g7h7 g6f8 h7h6 f8d7 f6h8 f7f6 h6h5 a5a4 g5g6 e5c6 g6g7 c6b4 g7g8q b4d5 g8d5 b2c3 d5d7 c3c4 h8f6 c1b2 d7f7 c4c5 f6e7 c5b6 f7e6 b6b5 e6d5 b5a6 e7d8 b7b6 d5c4 b6b5 c4c8 a6a7 c8c7 a7a8 d1f3; 2K3bN/6n1/kbQ1p3/p6n/p5p1/8/6p1/8 w - - bm #21; PV: c6c4 a6a7 c4e4 a7a6 e4e2 a6a7 e2g2 a7a6 g2e2 a6a7 e2e4 a7a6 e4d3 a6a7 h8f7 g7f5 d3d7 a7a6 f7e5 f5e7 d7e7 h5f6 e7b7 a6b5 b7c6 b5b4 c6c4 b4a3 c4b5 a3a2 e5c4 b6d4 b5a4 a2b1 a4d1 b1a2 d1c2 a2a1 c4d2 g8h7 d2b3; 7k/b1p1N1pr/2P3p1/2p3Pb/1pP1B1p1/1P3pP1/3P1P1n/4K3 w - - bm #21; PV: e4d5 h7h6 d5e6 a7b6 e7c8 b6a5 d2d4 c5d4 c4c5 d4d3 e1d2 h6h7 d2d3 h2f1 c8b6 f1h2 b6c4 h2f1 c4a5 h7h6 a5c4 f1h2 c4d6 h8h7 d6b5 h2f1 b5c7 f1g3 f2g3 h7h8 c7d5 f3f2 d3e2 h8h7 c6c7 f2f1q e2f1 h7h8 c7c8q h8h7 c8g8;