OK...Spliffjiffer wrote: ↑Mon Aug 30, 2021 6:52 am hi Hob,
it is so fast because i assumed that 1 Qg6 is the relevant move and made it by my own...after that i let the engine think about all the possible replys (i began with the from my personal point of view most idiotic one (Kd8) and it recognized that black is lost then...i did go on like that (kf8.kd7....and after that i tried all bishop moves(bg3,h4...and so on)...after all this trials that the program finally considered as say 20-- or even worse i got back to the root-position and asked it again...it showed then that 1.Qg6 has sth like 20++ for white...i took its favorite line after that and played it down to mate...after that i backtracked this line to move 1 with decent amount of time inbetween (to get a more reliable mate-score) and after that you see the analysis that i provided !!...but this is only to tell how it works for me...the worse thing for you is probably this:
after i ask the program (after all that stuff, and it gave me mate in 30) it tells me that the 2nd best move is even a shorter mate...this is its oütput:at this moment i do not dare to ask it for further sidelines because that could ruine the hashtables maybe (probably not but this is a 4+ hours research and i will not make it again)...the reason for this is simple: if u have any questions i can ask still the program because i still have track...so ask what is important for youCode: Select all
FEN: 8/Q1b1k3/8/4b3/8/ppp5/brrp2K1/nqbNb3 b - - 0 1 Cfish 250321 64 AVX2 NUMA: Pure NNUE evaluation using C:\Program Files\Arena 3.5.1\Engines\NNUE\nn-62ef826d1a6d.nnue enabled. 1/2 00:00 154 154k +M30 1.Da6-g6 2/2 00:00 481 481k +M30 1.Da6-g6 La7-d4 3/3 00:00 945 945k +M30 1.Da6-g6 La7-d4 2.Kg2-f3 4/4 00:00 2k 2.373k +M30 1.Da6-g6 La7-d4 2.Kg2-f3 Le5-g7 5/5 00:00 4k 3.514k +M30 1.Da6-g6 La7-d4 2.Kg2-f3 Le5-g7 3.Kf3-g4 6/6 00:00 5k 5.368k +M30 1.Da6-g6 La7-d4 2.Kg2-f3 Le5-g7 3.Kf3-g4 Le1-g3 7/7 00:00 7k 3.529k +M30 1.Da6-g6 La7-d4 2.Kg2-f3 Le5-g7 3.Kf3-g4 Le1-g3 4.Dg6-c6 8/8 00:00 9k 4.446k +M30 1.Da6-g6 La7-d4 2.Kg2-f3 Le5-g7 3.Kf3-g4 Le1-g3 4.Dg6-c6 Lg3-d6 9/9 00:00 11k 5.327k +M30 1.Da6-g6 La7-d4 2.Kg2-f3 Le5-g7 3.Kf3-g4 Le1-g3 4.Dg6-c6 Lg3-d6 5.Kg4-f5 10/10 00:00 13k 6.355k +M30 1.Da6-g6 La7-d4 2.Kg2-f3 Le5-g7 3.Kf3-g4 Le1-g3 4.Dg6-c6 Lg3-d6 5.Kg4-f5 Lg7-f8 11/11 00:00 15k 7.394k +M30 1.Da6-g6 La7-d4 2.Kg2-f3 Le5-g7 3.Kf3-g4 Le1-g3 4.Dg6-c6 Lg3-d6 5.Kg4-f5 Lg7-f8 6.Dc6-c4 12/12 00:00 17k 8.399k +M30 1.Da6-g6 La7-d4 2.Kg2-f3 Le5-g7 3.Kf3-g4 Le1-g3 4.Dg6-c6 Lg3-d6 5.Kg4-f5 Lg7-f8 6.Dc6-c4 Lc7-b6 13/14 00:00 22k 10.776k +M30 1.Da6-g6 La7-d4 2.Kg2-f3 Le5-g7 3.Kf3-g4 Le1-g3 4.Dg6-c6 Lg3-d6 5.Kg4-f5 Lg7-f8 6.Dc6-c4 Lc7-b6 14/15 00:00 25k 12.427k +M30 1.Da6-g6 La7-d4 2.Kg2-f3 Le5-g7 3.Kf3-g4 Le1-g3 4.Dg6-c6 Lg3-d6 5.Kg4-f5 Lg7-f8 6.Dc6-c4 Lc7-b6 7.Dc4-e6+ Ke7-d8 8.De6-f7 15/16 00:00 28k 13.914k +M30 1.Da6-g6 La7-d4 2.Kg2-f3 Le5-g7 3.Kf3-g4 Le1-g3 4.Dg6-c6 Lg3-d6 5.Kg4-f5 Lg7-f8 6.Dc6-c4 Lc7-b6 7.Dc4-e6+ Ke7-d8 8.De6-f7 Lf8-e7 16/17 00:00 31k 15.288k +M30 1.Da6-g6 La7-d4 2.Kg2-f3 Le5-g7 3.Kf3-g4 Le1-g3 4.Dg6-c6 Lg3-d6 5.Kg4-f5 Lg7-f8 6.Dc6-c4 Lc7-b6 7.Dc4-e6+ Ke7-d8 8.De6-f7 Lf8-e7 9.Kf5-e6 17/24 00:00 993k 25.452k 0,00 1.Da6xa7 Le1-h4 2.Kg2-f3 Ke7-e6 3.Kf3-g4 Lh4-e7 4.Da7-e3 Lc7-b8 5.De3-h6+ Le5-f6 6.Dh6-e3+ 18/25 00:00 1.065k 25.966k 0,00 1.Da6xa7 Ke7-d7 2.Da7-a4+ Kd7-e7 19/26 00:00 1.216k 25.866k 0,00 1.Da6xa7 Ke7-d7 2.Da7-a4+ Kd7-d8 3.Da4xa3 Le5-d6 4.Da3-a8+ Kd8-e7 5.Kg2-f3 Le1-g3 6.Kf3-e4 Ke7-f6 20/27 00:00 1.423k 26.350k 0,00 1.Da6xa7 Le1-h4 2.Kg2-f3 Ke7-e6 3.Da7-e3 Lh4-e7 4.De3-h6+ Ke6-f7 5.Dh6-h5+ Kf7-g7 6.Dh5-g4+ Kg7-h8 7.Dg4-h3+ Kh8-g7 21/30 00:00 1.865k 26.648k 0,00 1.Da6xa7 Le1-g3 2.Kg2-f3 Lg3-f4 3.Kf3-g4 Ke7-f6 4.Da7-a8 Lc7-d6 5.Da8-h8+ Kf6-g6 6.Dh8-h5+ Kg6-f6 7.Dh5-h7 Ld6-c5 8.Dh7-h8+ Kf6-f7 9.Dh8-h7+ Kf7-f6 22/32 00:00 3.539k 27.433k +48,03 1.Da6xa7 Ke7-e6 2.Da7-e3 Le1-g3 3.Kg2-f3 Lg3-f4 4.De3-e4 Ke6-f6 5.Kf3-g4 Lc7-d6 6.Kg4-h5 Kf6-g7 7.De4-b7+ Ld6-c7 8.Db7-c6 Le5-d6 9.Dc6-e4 Kg7-f6 23/26 00:00 6.156k 27.358k +M32 1.Da6xa7 Le1-g3 2.Kg2-f3 Lg3-f4 3.Kf3-g4 Ke7-f6 4.Da7-a8 Lc7-d6 5.Da8-g8 Lf4-h6 6.Kg4-h5 Lh6-g7 7.Dg8-e8 Le5-d4 8.De8-g6+ Kf6-e7 9.Kh5-g4 Lg7-f6 10.Dg6-g8 Ld6-h2 11.Kg4-f5 24/25 00:00 6.195k 27.411k +M30 1.Da6xa7 Le1-g3 2.Kg2-f3 Lg3-f4 3.Kf3-g4 Ke7-f6 4.Da7-a8 Lc7-d6 5.Da8-g8 Lf4-h6 6.Kg4-h5 Lh6-g7 7.Dg8-e8 Le5-d4 8.De8-g6+ Kf6-e7 9.Kh5-g4 Ld6-c5 10.Kg4-f5 Ld4-f6 11.Dg6-h7 Lf6-d4 12.Dh7-g8 Lg7-f6 13.Dg8-d5 25/26 00:00 6.228k 27.436k +M30 1.Da6xa7 Le1-g3 2.Kg2-f3 Lg3-f4 3.Kf3-g4 Ke7-f6 4.Da7-a8 Lc7-d6 5.Da8-g8 Lf4-h6 6.Kg4-h5 Lh6-g7 7.Dg8-e8 Le5-d4 8.De8-g6+ Kf6-e7 9.Kh5-g4 Ld6-c5 10.Kg4-f5 Ld4-f6 11.Dg6-h7 Lf6-d4 12.Dh7-g8 Lg7-f6 13.Dg8-d5 Ke7-f8 26/27 00:00 6.258k 27.329k +M30 1.Da6xa7 Le1-g3 2.Kg2-f3 Lg3-f4 3.Kf3-g4 Ke7-f6 4.Da7-a8 Lc7-d6 5.Da8-g8 Lf4-h6 6.Kg4-h5 Lh6-g7 7.Dg8-e8 Le5-d4 8.De8-g6+ Kf6-e7 9.Kh5-g4 Ld6-c5 10.Kg4-f5 Ld4-f6 11.Dg6-h7 Lf6-d4 12.Dh7-g8 Lg7-f6 13.Dg8-d5 Ke7-f8 14.Dd5-d7 27/28 00:00 6.302k 27.398k +M30 1.Da6xa7 Le1-g3 2.Kg2-f3 Lg3-f4 3.Kf3-g4 Ke7-f6 4.Da7-a8 Lc7-d6 5.Da8-g8 Lf4-h6 6.Kg4-h5 Lh6-g7 7.Dg8-e8 Le5-d4 8.De8-g6+ Kf6-e7 9.Kh5-g4 Ld6-c5 10.Kg4-f5 Ld4-f6 11.Dg6-h7 Lf6-d4 12.Dh7-g8 Lg7-f6 13.Dg8-d5 Ke7-f8 14.Dd5-d7 Lf6-e7 28/30 00:00 6.661k 27.301k +M30 1.Da6xa7 Le1-g3 2.Kg2-f3 Lg3-f4 3.Kf3-g4 Ke7-f6 4.Da7-a8 Lc7-d6 5.Da8-g8 Lf4-h6 6.Kg4-h5 Lh6-g7 7.Dg8-e8 Le5-d4 8.De8-g6+ Kf6-e7 9.Kh5-g4 Lg7-f6 10.Kg4-f5 Ld6-c7 11.Dg6-g8 Ke7-d6 12.Dg8-e6+ Kd6-c5 13.De6-d7 Lf6-e5 14.Kf5-e6 Le5-d6 15.Dd7-c8 Ld4-g1 29/36 00:00 6.828k 27.313k +M30 1.Da6xa7 Le1-g3 2.Kg2-f3 Lg3-f4 3.Kf3-g4 Ke7-f6 4.Da7-a8 Lc7-d6 5.Kg4-h5 Kf6-f7 6.Da8-d5+ Kf7-g7 7.Dd5-b7+ Ld6-c7 8.Db7-g2+ Lf4-g3 9.Kh5-g5 Le5-f6+ 10.Kg5-f5 Lc7-d6 11.Dg2-c6 Lg3-e5 12.Dc6-e8 Le5-d4 13.De8-g6+ Kg7-h8 14.Dg6-h6+ Kh8-g8 15.Kf5-g6 Lf6-g7 16.Dh6-h1 Ld4-e5 17.Dh1-h3 Ld6-c5 18.Dh3-e6+ Kg8-h8 30/32 00:00 6.969k 27.222k +M30 1.Da6xa7 Le1-g3 2.Kg2-f3 Lg3-f4 3.Kf3-g4 Ke7-f6 4.Da7-a8 Lc7-d6 5.Da8-g8 Lf4-h6 6.Kg4-h5 Lh6-g7 7.Dg8-e8 Le5-d4 8.De8-g6+ Kf6-e7 9.Kh5-g4 Ld4-f6 10.Kg4-f5 Ld6-c7 11.Dg6-g4 Lf6-e5 12.Dg4-c4 Ke7-d6 13.Dc4-e6+ Kd6-c5 14.De6-d7 Lg7-f6 15.Kf5-e6 Le5-d6 16.Ke6xf6 Ld6-h2 31/34 00:00 7.634k 27.263k +M30 1.Da6xa7 Le1-g3 2.Kg2-f3 Lg3-f4 3.Kf3-g4 Ke7-f6 4.Da7-a8 Lc7-d6 5.Da8-g8 Lf4-h6 6.Kg4-h5 Lh6-g7 7.Dg8-e8 Le5-d4 8.De8-g6+ Kf6-e7 9.Kh5-g4 Ld4-f6 10.Kg4-f5 Ld6-c7 11.Dg6-g4 Lf6-e5 12.Dg4-c4 Ke7-d6 13.Dc4-e6+ Kd6-c5 14.De6-d7 Lg7-f6 15.Kf5-e6 Le5-d6 16.Ke6xf6 Ld6-h2 17.Kf6-e6 32/38 00:00 9.917k 27.936k +M30 1.Da6xa7 Le1-g3 2.Kg2-f3 Lg3-f4 3.Kf3-g4 Ke7-f6 4.Da7-a8 Lc7-d6 5.Da8-g8 Lf4-h6 6.Kg4-h5 Lh6-g7 7.Dg8-e8 Ld6-c7 8.De8-g6+ Kf6-e7 9.Kh5-g4 Lg7-f6 10.Dg6-h7+ Lf6-g7 11.Kg4-f5 Ke7-f8 12.Dh7-h1 Lc7-d6 13.Dh1-a8+ Kf8-e7 14.Da8-b7+ Ld6-c7 15.Db7-d5 Lc7-d6 16.Dd5-e6+ Ke7-d8 17.De6-f7 Ld6-e7 18.Df7-d5+ Kd8-c7 19.Kf5-e6 Le5-d6 20.Dd5-a5+ Kc7-c6 21.Da5-a8+ Kc6-c5 33/40 00:00 15.646k 28.974k +M29 1.Da6xa7 Le1-g3 2.Kg2-f3 Lg3-f4 3.Kf3-g4 Ke7-f6 4.Da7-a8 Lc7-d6 5.Da8-g8 Lf4-h6 6.Kg4-h5 Lh6-g7 7.Dg8-e8 Le5-d4 8.De8-g6+ Kf6-e7 9.Dg6-e4+ Ld6-e5 10.Kh5-g6 Ke7-d6 11.Kg6-f7 Lg7-f6 12.De4-f5 Kd6-d5 13.Kf7-e8 Kd5-c6 14.Df5-d7+ Kc6-c5 15.Ke8-f7 Le5-d6 16.Kf7-e6 Lf6-e5 17.Dd7-b7 Ld4-e3 18.Db7-d5+ Kc5-b6 19.Ke6-d7 34/44 00:00 28.730k 29.834k +M30 1.Da6xa7 Le1-g3 2.Kg2-f3 Lg3-f4 3.Kf3-g4 Ke7-f6 4.Da7-a8 Lc7-d6 5.Da8-g8 Lf4-h6 6.Kg4-h5 Lh6-f4 7.Dg8-g6+ Kf6-e7 8.Kh5-g4 Lf4-g3 9.Dg6-h7+ Ke7-f6 10.Dh7-h6+ Kf6-e7 11.Dh6-g6 Le5-f6 12.Kg4-f5 Lg3-e5 13.Dg6-g8 Ke7-d7 14.Dg8-e6+ Kd7-d8 15.De6-f7 Lf6-e7 16.Df7-d5 Kd8-c7 17.Dd5-c4+ Kc7-b6 18.Kf5-e6 Ld6-c5 19.Ke6xe5 Lc5-d6+ 20.Ke5-e6 Ld6-b4 35/41 00:01 35.056k 29.988k +M29 1.Da6xa7 Le1-g3 2.Kg2-f3 Lg3-f4 3.Kf3-g4 Ke7-f6 4.Da7-a8 Lc7-d6 5.Da8-g8 Lf4-h6 6.Kg4-h5 Lh6-f4 7.Dg8-g6+ Kf6-e7 8.Kh5-g4 Lf4-g3 9.Dg6-h7+ Ke7-e6 10.Dh7-f5+ Ke6-e7 11.Df5-g6 Le5-f6 12.Kg4-f5 Lg3-e5 13.Dg6-g8 Ke7-d7 14.Dg8-e6+ Kd7-d8 15.De6-f7 Lf6-e7 16.Df7-d5 Kd8-c7 17.Dd5-c4+ Kc7-b6 18.Kf5-e6 Ld6-c5 19.Ke6xe5 Lc5-d6+ 20.Ke5-e6 Ld6-b4 21.Ke6-d7 36/46 00:01 58.144k 30.928k +M29 1.Da6xa7 Le1-g3 2.Kg2-f3 Lg3-f4 3.Kf3-g4 Ke7-f6 4.Da7-a8 Lc7-d6 5.Da8-g8 Lf4-h6 6.Kg4-h5 Lh6-g7 7.Dg8-e8 Le5-d4 8.De8-g6+ Kf6-e7 9.Dg6-e4+ Ld4-e5 10.Kh5-g6 Ld6-b8 11.De4-d5 Lg7-f6 12.Kg6-f5 Lb8-d6 13.Dd5-e6+ Ke7-d8 14.De6-f7 Lf6-e7 15.Df7-d5 Kd8-c7 16.Dd5-c4+ Kc7-b6 17.Kf5-e4 Le7-f8 18.Ke4-d5 Ld6-c5 19.Dc4-a4 Lc5-g1 20.Da4-c6+ Kb6-a7 21.Kd5-c4 37/44 00:02 75.386k 30.871k +M29 1.Da6xa7 Le1-g3 2.Kg2-f3 Lg3-f4 3.Kf3-g4 Ke7-f6 4.Da7-a8 Lc7-d6 5.Da8-g8 Lf4-h6 6.Kg4-h5 Lh6-g7 7.Dg8-e8 Le5-d4 8.De8-g6+ Kf6-e7 9.Dg6-e4+ Ld6-e5 10.Kh5-g6 Ke7-d6 11.Kg6-f7 Ld4-c5 12.De4-c4 Le5-d4 13.Dc4-e6+ Kd6-c7 14.De6-d5 Lg7-e5 15.Kf7-e6 Le5-d6 16.Dd5-f5 Ld4-e5 17.Df5-h7+ Kc7-b6 18.Ke6-d7 Le5-f4 19.Dh7-e4 Kb6-b5 20.De4-d3+ Kb5-b6 21.Dd3-d5 Lf4-e3 38/51 00:34 1.132.592k 32.369k +M28 1.Da6xa7 Le1-g3 2.Kg2-f3 Lg3-f4 3.Kf3-g4 Ke7-f6 4.Da7-b7 Lc7-d6 5.Db7-h7 Ld6-c5 6.Kg4-h5 Le5-d4 7.Dh7-g6+ Kf6-e5 8.Dg6-f7 Lf4-e3 9.Kh5-g6 Le3-f2 10.Df7-f5+ Ke5-d6 11.Kg6-f7 Lf2-g1 12.Df5-e6+ Kd6-c7 13.De6-d5 Lg1-h2 14.Kf7-e6 Lh2-d6 15.Dd5-f5 Ld6-e7 16.Df5-f7 Lc5-b4 17.Ke6-d5 Ld4-b6 18.Df7-e8 Lb4-c5 19.De8-c6+ Kc7-b8 20.Dc6-d7 Le7-d8 21.Kd5-c6 Lb6-c7 39/50 00:59 1.902.646k 32.139k +M28 1.Da6xa7 Le1-g3 2.Kg2-f3 Lg3-f4 3.Kf3-g4 Ke7-f6 4.Da7-b7 Lc7-d6 5.Db7-h7 Ld6-c5 6.Kg4-h5 Le5-d4 7.Dh7-g6+ Kf6-e5 8.Kh5-g4 Lf4-e3 9.Dg6-f5+ Ke5-d6 10.Df5-e4 Ld4-e5 11.De4-g6+ Kd6-d7 12.Kg4-f5 Le3-d4 13.Dg6-e6+ Kd7-c7 14.De6-e8 Kc7-d6 15.De8-d8+ Kd6-c6 16.Kf5-e6 Lc5-d6 17.Dd8-e8+ Kc6-c5 18.De8-a8 Ld6-e7 19.Da8-c8+ Kc5-b6 20.Ke6-d7 Le7-c5 21.Dc8-c6+ Kb6-a5 22.Kd7-e6 Le5-c7 23.Ke6-d5 Lc7-b6 24.Kd5-c4 40/49 00:59 1.911.278k 32.132k +M28 1.Da6xa7 Le1-g3 2.Kg2-f3 Lg3-f4 3.Kf3-g4 Ke7-f6 4.Da7-b7 Lc7-d6 5.Db7-h7 Ld6-c5 6.Kg4-h5 Le5-d4 7.Dh7-g6+ Kf6-e5 8.Kh5-g4 Lf4-e3 9.Dg6-f5+ Ke5-d6 10.Df5-e4 Ld4-e5 11.De4-g6+ Kd6-d7 12.Kg4-f5 Le3-d4 13.Dg6-e6+ Kd7-c7 14.De6-e8 Kc7-d6 15.De8-d8+ Kd6-c6 16.Kf5-e6 Lc5-d6 17.Dd8-e8+ Kc6-c5 18.De8-a8 Ld6-e7 19.Ke6-d7 Ld4-g1 20.Da8-c6+ Kc5-d4 21.Kd7-e6 Kd4-d3 22.Dc6-f3+ Kd3-c4 23.Df3-d5+ Kc4-b4 24.Ke6-d7 Le5-d4 25.Kd7-c6 41/50 01:21 2.594.451k 32.014k +M28 1.Da6xa7 Le1-g3 2.Kg2-f3 Lg3-f4 3.Kf3-g4 Ke7-f6 4.Da7-b7 Lc7-d6 5.Db7-h7 Ld6-c5 6.Kg4-h5 Le5-d4 7.Dh7-g6+ Kf6-e5 8.Kh5-g4 Lf4-e3 9.Dg6-f5+ Ke5-d6 10.Df5-e4 Ld4-e5 11.De4-g6+ Kd6-d7 12.Kg4-f5 Le3-d4 13.Dg6-e6+ Kd7-c7 14.De6-e8 Kc7-d6 15.De8-d8+ Kd6-c6 16.Kf5-e6 Lc5-d6 17.Dd8-e8+ Kc6-c5 18.De8-a8 Ld6-e7 19.Ke6-d7 Ld4-g1 20.Da8-c6+ Kc5-d4 21.Kd7-e6 Kd4-d3 22.Dc6-f3+ Kd3-c4 23.Df3-d5+ Kc4-b4 24.Ke6-d7 Le5-d4 25.Kd7-c6 Le7-c5 42/53 01:28 2.824.224k 32.015k +M28 1.Da6xa7 Le1-g3 2.Kg2-f3 Lg3-f4 3.Kf3-g4 Ke7-f6 4.Da7-b7 Lc7-d6 5.Db7-h7 Ld6-c5 6.Kg4-h5 Le5-d4 7.Dh7-g6+ Kf6-e5 8.Kh5-g4 Lf4-e3 9.Dg6-f5+ Ke5-d6 10.Df5-e4 Ld4-e5 11.De4-g6+ Kd6-d7 12.Kg4-f5 Le3-d4 13.Dg6-e6+ Kd7-c7 14.De6-e8 Kc7-d6 15.De8-d8+ Kd6-c6 16.Kf5-e6 Lc5-d6 17.Dd8-e8+ Kc6-c5 18.De8-a8 Ld4-e3 19.Da8-d5+ Kc5-b6 20.Ke6-d7 Le3-c5 21.Dd5-c6+ Kb6-a5 22.Kd7-c8 Ld6-c7 23.Dc6xc5+ Ka5-a6 24.Dc5-c6+ Ka6-a5 25.Kc8-b7 Lc7-d6 26.Dc6-a6+ Ka5-b4 27.Kb7-c6 43/53 01:37 3.118.314k 31.941k +M28 1.Da6xa7 Le1-g3 2.Kg2-f3 Lg3-f4 3.Kf3-g4 Ke7-f6 4.Da7-b7 Lc7-d6 5.Db7-h7 Ld6-c5 6.Kg4-h5 Le5-d4 7.Dh7-g6+ Kf6-e5 8.Kh5-g4 Lf4-e3 9.Dg6-f5+ Ke5-d6 10.Df5-e4 Ld4-e5 11.De4-g6+ Kd6-d7 12.Kg4-f5 Le3-d4 13.Dg6-e6+ Kd7-c7 14.De6-e8 Kc7-d6 15.De8-d8+ Kd6-c6 16.Kf5-e6 Lc5-d6 17.Dd8-e8+ Kc6-c5 18.De8-a8 Ld4-g1 19.Da8-d5+ Kc5-b6 20.Ke6-d7 Ld6-c5 21.Dd5-c6+ Kb6-a5 22.Kd7-c8 Ka5-b4 23.Kc8-b7 Kb4-c4 24.Dc6-e4+ Lc5-d4 25.Kb7-c6 Lg1-e3 26.Sd1xe3+ Kc4-b4 27.De4-d3 44/54 01:50 3.507.732k 31.874k +M28 1.Da6xa7 Le1-g3 2.Kg2-f3 Lg3-f4 3.Kf3-g4 Ke7-f6 4.Da7-b7 Lc7-d6 5.Db7-h7 Ld6-c5 6.Kg4-h5 Le5-d4 7.Dh7-g6+ Kf6-e5 8.Kh5-g4 Lf4-e3 9.Dg6-f5+ Ke5-d6 10.Df5-e4 Ld4-e5 11.De4-g6+ Kd6-d7 12.Kg4-f5 Le3-d4 13.Dg6-e6+ Kd7-c7 14.De6-e8 Kc7-d6 15.De8-d8+ Kd6-c6 16.Kf5-e6 Lc5-d6 17.Dd8-e8+ Kc6-c5 18.De8-a8 Ld4-g1 19.Da8-d5+ Kc5-b6 20.Ke6-d7 Ld6-c5 21.Dd5-c6+ Kb6-a5 22.Kd7-c8 Ka5-b4 23.Kc8-b7 Kb4-c4 24.Dc6-e4+ Lc5-d4 25.Kb7-c6 Lg1-e3 26.Sd1xe3+ Kc4-b4 27.De4-d3 Ld4xe3 45/56 01:59 3.815.678k 31.841k +M28 1.Da6xa7 Le1-g3 2.Kg2-f3 Lg3-f4 3.Kf3-g4 Ke7-f6 4.Da7-b7 Lc7-d6 5.Db7-h7 Ld6-c5 6.Kg4-h5 Le5-d4 7.Dh7-g6+ Kf6-e5 8.Kh5-g4 Lf4-e3 9.Dg6-f5+ Ke5-d6 10.Df5-e4 Ld4-e5 11.De4-g6+ Kd6-d7 12.Kg4-f5 Le3-d4 13.Dg6-e6+ Kd7-c7 14.De6-e8 Kc7-d6 15.De8-d8+ Kd6-c6 16.Kf5-e6 Lc5-d6 17.Dd8-e8+ Kc6-c5 18.De8-a8 Ld4-g1 19.Da8-d5+ Kc5-b6 20.Ke6-d7 Ld6-c5 21.Dd5-c6+ Kb6-a5 22.Kd7-c8 Ka5-b4 23.Kc8-b7 Kb4-c4 24.Dc6-e4+ Lc5-d4 25.Kb7-c6 Lg1-e3 26.Sd1xe3+ Kc4-b4 27.De4-d3 Ld4xe3 28.Dd3-b5+ 46/56 02:14 4.279.795k 31.771k +M28 1.Da6xa7 Le1-g3 2.Kg2-f3 Lg3-f4 3.Kf3-g4 Ke7-f6 4.Da7-b7 Lc7-d6 5.Db7-h7 Ld6-c5 6.Kg4-h5 Le5-d4 7.Dh7-g6+ Kf6-e5 8.Kh5-g4 Lf4-e3 9.Dg6-f5+ Ke5-d6 10.Df5-e4 Ld4-e5 11.De4-g6+ Kd6-d7 12.Kg4-f5 Le3-d4 13.Dg6-e6+ Kd7-c7 14.De6-e8 Kc7-d6 15.De8-d8+ Kd6-c6 16.Kf5-e6 Lc5-d6 17.Dd8-e8+ Kc6-c5 18.De8-a8 Ld4-f2 19.Da8-d5+ Kc5-b6 20.Ke6-d7 Ld6-c5 21.Dd5-c6+ Kb6-a5 22.Dc6-b7 Le5-c7 23.Kd7-c6 Lc5-b6 24.Db7-a8+ Lb6-a7 25.Da8-e8 Lc7-e5 26.De8xe5+ La7-c5 27.De5-e2 Lf2-h4 28.De2-b5+ 47/56 02:40 5.065.139k 31.656k +M28 1.Da6xa7 Le1-g3 2.Kg2-f3 Lg3-f4 3.Kf3-g4 Ke7-f6 4.Da7-b7 Lc7-d6 5.Db7-h7 Ld6-c5 6.Kg4-h5 Le5-d4 7.Dh7-g6+ Kf6-e5 8.Kh5-g4 Lf4-e3 9.Dg6-f5+ Ke5-d6 10.Df5-e4 Ld4-e5 11.De4-g6+ Kd6-d7 12.Kg4-f5 Le3-d4 13.Dg6-e6+ Kd7-c7 14.De6-e8 Kc7-d6 15.De8-d8+ Kd6-c6 16.Kf5-e6 Lc5-d6 17.Dd8-e8+ Kc6-c5 18.De8-a8 Ld6-e7 19.Ke6-d7 Ld4-g1 20.Da8-c6+ Kc5-d4 21.Kd7-e6 Kd4-d3 22.Dc6-f3+ Kd3-c4 23.Df3-d5+ Kc4-b4 24.Ke6-d7 Le5-d4 25.Kd7-c6 Le7-c5 26.Dd5-f3 Kb4-a4 27.Df3-d3 Ka4-b4 28.Dd3-b5+ 48/56 03:17 6.222.434k 31.538k +M28 1.Da6xa7 Le1-g3 2.Kg2-f3 Lg3-f4 3.Kf3-g4 Ke7-f6 4.Da7-b7 Lc7-d6 5.Db7-h7 Ld6-c5 6.Kg4-h5 Le5-d4 7.Dh7-g6+ Kf6-e5 8.Kh5-g4 Lf4-e3 9.Dg6-f5+ Ke5-d6 10.Df5-e4 Ld4-e5 11.De4-g6+ Kd6-d7 12.Kg4-f5 Le3-d4 13.Dg6-e6+ Kd7-c7 14.De6-e8 Kc7-d6 15.De8-d8+ Kd6-c6 16.Kf5-e6 Lc5-d6 17.Dd8-e8+ Kc6-c5 18.De8-a8 Ld4-f2 19.Da8-d5+ Kc5-b6 20.Ke6-d7 Ld6-c5 21.Dd5-c6+ Kb6-a5 22.Dc6-b7 Le5-c7 23.Kd7-c6 Lc5-b6 24.Db7-c8 Lf2-c5 25.Dc8-g4 Ka5-a6 26.Dg4-a4+ Lb6-a5 27.Da4-b5+ Ka6-a7 28.Db5-b7+ 49/56 03:26 6.516.883k 31.536k +M28 1.Da6xa7 Le1-h4 2.Kg2-f3 Ke7-f6 3.Kf3-g4 Lh4-g5 4.Kg4-h5 Le5-f4 5.Da7-a6+ Lc7-d6 6.Da6-d3 Ld6-c5 7.Dd3-g6+ Kf6-e5 8.Kh5-g4 Lf4-e3 9.Dg6-f5+ Ke5-d6 10.Df5-e4 Lg5-e7 11.Kg4-f5 Le3-f2 12.De4-e5+ Kd6-d7 13.De5-d5+ Le7-d6 14.Dd5-e6+ Kd7-c6 15.De6-e8+ Kc6-b6 16.Kf5-e6 Ld6-c7 17.De8-a8 Lf2-e3 18.Ke6-d7 Kb6-b5 19.Da8-c6+ Kb5-c4 20.Dc6-f3 Kc4-b5 21.Kd7xc7 Lc5-d6+ 22.Kc7-b7 Kb5-c5 23.Df3-f5+ Kc5-c4 24.Df5-e4+ Kc4-c5 25.Sd1xe3 Ld6-c7 26.De4-d5+ Kc5-b4 27.Kb7-a6 d2-d1D 28.Dd5-c4+ 50/56 10:45 20.130.155k 31.206k +M28 1.Da6xa7 Le1-h4 2.Kg2-f3 Ke7-f6 3.Kf3-g4 Lh4-g5 4.Kg4-h5 Le5-f4 5.Da7-a6+ Lc7-d6 6.Da6-d3 Ld6-c5 7.Dd3-g6+ Kf6-e5 8.Kh5-g4 Lf4-e3 9.Dg6-f5+ Ke5-d6 10.Df5-e4 Lg5-e7 11.Kg4-f5 Le3-f2 12.De4-e5+ Kd6-d7 13.De5-d5+ Le7-d6 14.Dd5-e6+ Kd7-c6 15.De6-e8+ Kc6-b6 16.Kf5-e6 Ld6-c7 17.De8-a8 Lf2-e3 18.Ke6-d7 Kb6-b5 19.Da8-c6+ Kb5-c4 20.Dc6-f3 Kc4-b5 21.Kd7xc7 Lc5-d6+ 22.Kc7-b7 Kb5-c5 23.Df3-f5+ Kc5-c4 24.Df5-e4+ Kc4-c5 25.Sd1xe3 Ld6-c7 26.De4-d5+ Kc5-b4 27.Kb7-a6 d2-d1D 28.Dd5-c4+ 51/56 10:52 20.356.478k 31.200k +M28 1.Da6xa7 Le1-h4 2.Kg2-f3 Ke7-f6 3.Kf3-g4 Lh4-g5 4.Kg4-h5 Le5-f4 5.Da7-a6+ Lc7-d6 6.Da6-d3 Ld6-c5 7.Dd3-g6+ Kf6-e5 8.Kh5-g4 Lf4-e3 9.Dg6-f5+ Ke5-d6 10.Df5-e4 Lg5-e7 11.Kg4-f5 Le3-f2 12.De4-e5+ Kd6-d7 13.De5-d5+ Le7-d6 14.Dd5-e6+ Kd7-c6 15.De6-e8+ Kc6-b6 16.Kf5-e6 Ld6-c7 17.De8-a8 Lf2-e3 18.Ke6-d7 Kb6-b5 19.Da8-c6+ Kb5-c4 20.Dc6-f3 Kc4-b5 21.Kd7xc7 Lc5-d6+ 22.Kc7-b7 Kb5-c5 23.Df3-f5+ Kc5-c4 24.Df5-e4+ Kc4-c5 25.Sd1xe3 Ld6-c7 26.De4-d5+ Kc5-b4 27.Kb7-a6 d2-d1D 28.Dd5-c4+
It seems I underestimated the importance of the missing of the a1 corner.
What's the result of 1.Qxa7 Kf6?
Is there any other winning move for White?