Arasan20 testsuite VS 4 top solvers

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jdart
Posts: 4367
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Re: Arasan20 testsuite VS 4 top solvers

Post by jdart »

Another couple positions that were mentioned:

Code: Select all

r1q1k2r/1p1nbpp1/2p2np1/p1Pp4/3Pp3/P1N1P1P1/1P1B1P1P/R2QRBK1 b kq - bm Bxc5; id "arasan20.3"; c0 "Mapanare-XXAAXX, Tues 23 Feb Rapid Engine Tour, Infinity Chess 2016";

depth 50 seldepth 13 multipv 1 score +213 nodes 32640209729 nps 18133439 hashfull 1000 tbhits 0 time 1800.001 pv Bxc5
depth 50 seldepth 81 multipv 2 score +182 nodes 32640209729 nps 18133439 hashfull 1000 tbhits 0 time 1800.001 pv Nf8 Bg2 Ne6 f3 Ng5 fxe4 dxe4 Qe2 Nh3+ Bxh3 Qxh3 Qg2 Ng4 Qxh3 R\
xh3 Nxe4 f5 Nc3 Kf7 Re2 Rah8 Rae1 g5 Nd1 Nxh2 Kg2 Ng4 e4 f4 gxf4 Rd3 Ne3 gxf4 Nxg4 Rg3+ Kf2 Rxg4 Kf3 Rhh4 Rg2 Rxg2 Kxg2 g5 Bxa5 Rg4+ Kf1 Rg3 Re2 Rh3 Rg2 Bf6 e5 Be7 Bc7 Ke6 Bd6\
 Bd8 Kg1 f3 Rh2 Rxh2 Kxh2
depth 50 seldepth 65 multipv 3 score +87 nodes 32640209729 nps 18133439 hashfull 1000 tbhits 0 time 1800.001 pv Nh7 f4 g5 b4 gxf4 exf4 g6 b5 Nhf8 Rb1 Ne6 Be3 Ng7 h3 Nf5 Bf2 Qc\
7 Qd2 Kf8 Nd1 Bd8 Ne3 Nxe3 Bxe3 Nf6 g4 Ne8 Rb2 Ng7 Reb1 f5 Qf2 Ne6 bxc6 bxc6 Rb7 Qc8 Kg2 Bc7 Be2 Kf7 h4 Rb8 Rxb8 Bxb8 Rb6 Qc7 Qg3
++ solved in 0.738 seconds (11886828 nodes) (1 out of 1 solved, 100.0%)

2rr3k/2qnbppp/p1n1p3/1p1pP3/3P1N2/1Q1BBP2/PP3P1P/1KR3R1 w - - bm Bxh7; id "arasan20.4"; c0 "Eljanov-Van Wely, Tch-RUS Sochi 2008";

depth 52 seldepth 72 multipv 1 score +460 nodes 35981623078 nps 19989779 hashfull 971 tbhits 0 time 1800.001 pv Bxh7 Ndxe5
depth 51 seldepth 70 multipv 2 score +235 nodes 35981623078 nps 19989779 hashfull 971 tbhits 0 time 1800.001 pv Rg3 g6 h4 Nxd4 Rxc7 Nxb3 Rxc8 Rxc8 axb3 Bxh4 Rh3 Bd8 Bc2 h5 Nd3\
 a5 Kc1 a4 Kd2 Ba5+ Kd1 axb3 Bxb3 Bb6 Bc1 Kg7 f4 Bd4 Bd2 Ra8 Kc2 Rc8+ Kb1 Nb6 Bd1 Nc4 Bb4 Ra8 Be2 Ra4 Be1 Kh7 Rf3 Kg7 Rg3 Kh7 Rg2 Kh6 Rh2 Kg7 Bd1 Ra8 Rh4 Kh7 Rh3 Rc8 Bb3 Kg7 R\
g3 Rh8 Bd1 b4 Bc2
depth 51 seldepth 74 multipv 3 score +160 nodes 35981623078 nps 19989779 hashfull 971 tbhits 0 time 1800.001 pv Rg4 Nf8 h4 f5 exf6 Bxf6 Nh5 Nd7 Bc2 Rg8 a3 b4 Qd3 g6 Nxf6 Nxf6 \
Rgg1 bxa3 Qxa3 Na5 Bf5 Qb6 Bd3 Qb3 Qxb3 Nxb3 Rxc8 Rxc8 Bxa6 Rb8 Kc2 Kg7 Kc3 Nh5 Rb1 Kf7 Bg5 Ke8 Bd3 Kd7 Bc2 Na5 b4 Rc8+ Kd3 Nc4 Ra1 Rf8 Ra7+ Kc6 Rxh7 Nf4+ Bxf4 Rxf4 Ba4+ Kb6 B\
e8 Rxf3+ Ke2 Rf4 Bxg6 Rxd4 h5 Rh4 Re7
++ solved in 0.244 seconds (4705558 nodes) (2 out of 2 solved, 100.0%)
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Paloma
Posts: 1167
Joined: Thu Dec 25, 2008 9:07 pm
Full name: Herbert L

Re: Arasan20 testsuite VS 4 top solvers

Post by Paloma »

r2q1k1r/pp2n1pp/2nb1p2/1B1p3Q/N2P4/2P1B3/PP4PP/R4RK1 w - - bm Rxf6+; id "arasan20.148";

Analysis by Crystal 110920 Cry3.0:

1. +- (12.90): 1.Rxf6+ gxf6 2.Bh6+ Kg8 3.Rf1 f5 4.Rxf5 Qe8 5.Qg4+ Qg6 6.Rg5 Kf7 7.Rxg6 hxg6 8.Bf4 Rad8 9.Nc5 Bxc5 10.dxc5 Rh5
2. +- (7.49): 1.Bg5 Ng8 2.Rae1 Qd7 3.Bf4 Be7 4.Bd3 Nxd4 5.Rxe7 Nxe7 6.Nc5 Qe8 7.Qxe8+ Kxe8 8.cxd4 b6 9.Ne6 Kf7 10.Nc7 Rad8
3. +- (7.06): 1.Rae1 Kg8 2.Bf4 Bxf4 3.Rxf4 Qf8 4.Nc5 Qf7 5.Qh3 Ng6 6.Rf2 h5 7.Nxb7 Qxb7 8.Qe6+ Qf7 9.Bxc6 Rd8 10.Be8 Qxe6
4. +- (5.71): 1.Nc5 Bxc5 2.dxc5 Qe8 3.Qh3 Qc8 4.Qf3 a6 5.Ba4 Kf7 6.Rae1 Re8 7.Bh6 Rf8 8.Bf4 Kg8 9.Bd6 Rf7 10.h3 g6 11.b4 Qf5
Depth 34, 1/2 hour
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MMarco
Posts: 195
Joined: Sun Apr 12, 2020 1:09 am
Full name: Marc-O Moisan-Plante

Re: Arasan20 testsuite VS 4 top solvers

Post by MMarco »

This one (#132) is solved by Crystal 3.0

[d]r2q1r2/1b2bpkp/p3p1p1/2ppP1P1/7R/1PN1BQR1/1PP2P1P/4K3 w - - 0 1

Code: Select all

[25] 12.90 Df6+ Fxf6 gxf6+ Dxf6 exf6+ Rxf6 Fxc5 Tfe8 Txh7 d4 Fxd4+ e5 Fe3 Th8 Tgh3 Txh7 Txh7 Td8 Th4 Rg7 f4 exf4 Txf4 Te8 Rf2 Rg8 Td4 Rf8 Tc4 Te5 Tf4 f5 Fd4 Re7 Fxe5 Re6

d:26/55 1:Df6+ t:112.7 n:82773k nps:734k tb:18 h:63
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jdart
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Re: Arasan20 testsuite VS 4 top solvers

Post by jdart »

I would like to suggest the following replacements for the problematic positions. These are from a list of candidate test positions I have been collecting. None are super-hard but difficult enough to be interesting IMO.

Code: Select all

r2r1k2/p3qpp1/1p1ppn1p/n5B1/P1PNbP2/2P3Q1/4B1PP/4RRK1 w - - bm Bg4; id "arasan 20.3"; c0 "Minic-Weiss, TCEC 2020";
1q3r1k/6b1/B6p/2P5/1P1p2pQ/P3r3/6P1/1R1R2K1 b - - bm g3; id "arasan20.37"; c0 "Arasan-DeathBook2020, ICC 2020";
8/2k5/1p6/pP6/P7/2PN1B1p/4K3/1r6 b - - bm Ra1; id "arasan20.60"; c0 "Fire-AllieStein, TCEC 2020";
2k2b1r/p4p2/4pP2/2pbP3/1pp1NB1P/6P1/qP3PB1/3RR1K1 w - - bm Rxd5; id "arasan20.61"; c0 "Lc0 0.22.0 11260-Laser 1.7, FGRL 16 core 2019";
3q4/6kp/p1pp1pn1/Pr6/3PN1PP/8/5Q2/4R1K1 b - - bm h5; id "arasan20.87"; c0 "Hutnik-Arasan, FICS 2020";
4rb1k/6pp/NR3p2/P2Pp2q/6bP/4BnP1/5PK1/2R2Q2 b - - bm Qf5; id "arasan20.121"; c0 "Arasan-exeComp, FICS 2018";
r1q1r1k1/p1p2ppp/1p3nn1/1BP2b2/4p3/B1P1P2P/P1QN1PP1/R2R2K1 b - - bm Bxh3; id "arasan20.148"; c0 "Deep Shredder 13-Lc0k 0.23.2 384x30 T-40-2036, FGRL 16-core 2020";
r2qkbnr/ppp1pppp/3p4/3Pn3/4P1b1/5N2/PPP2PPP/RNBQKB1R w KQkq - bm Nxe5; id "arasan20.158"; c0 "Nimzo-Indian queen sac";
r3r1k1/4qp1p/4p1p1/p2pP3/2pN1PP1/8/3Q3P/2R2R1K w - - bm f5; id "arasan20.170"; c0 "Antifish-Komodo MC, CCC 8: Deep Dive 2019";
r2q1rk1/1p3pp1/p3b1n1/3pP1Q1/P1pP4/2N1P3/1P4BP/R4RK1 w - - bm Rf6; id "arasan20.174"; c0 "wardog218-Arasan, ICC 2020";
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Vinvin
Posts: 5228
Joined: Thu Mar 09, 2006 9:40 am
Full name: Vincent Lejeune

Re: Arasan20 testsuite VS 4 top solvers

Post by Vinvin »

MMarco wrote: ↑Thu Jan 07, 2021 8:19 pm This one (#132) is solved by Crystal 3.0

[d]r2q1r2/1b2bpkp/p3p1p1/2ppP1P1/7R/1PN1BQR1/1PP2P1P/4K3 w - - 0 1

Code: Select all

[25] 12.90 Df6+ Fxf6 gxf6+ Dxf6 exf6+ Rxf6 Fxc5 Tfe8 Txh7 d4 Fxd4+ e5 Fe3 Th8 Tgh3 Txh7 Txh7 Td8 Th4 Rg7 f4 exf4 Txf4 Te8 Rf2 Rg8 Td4 Rf8 Tc4 Te5 Tf4 f5 Fd4 Re7 Fxe5 Re6

d:26/55 1:Df6+ t:112.7 n:82773k nps:734k tb:18 h:63
8.5 years ago, a lot of engines already solved this one : http://talkchess.com/forum3/viewtopic.php?f=2&t=44622
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MMarco
Posts: 195
Joined: Sun Apr 12, 2020 1:09 am
Full name: Marc-O Moisan-Plante

Re: Arasan20 testsuite VS 4 top solvers

Post by MMarco »

Vinvin wrote: ↑Sat Jan 09, 2021 3:07 am
MMarco wrote: ↑Thu Jan 07, 2021 8:19 pm This one (#132) is solved by Crystal 3.0

[d]r2q1r2/1b2bpkp/p3p1p1/2ppP1P1/7R/1PN1BQR1/1PP2P1P/4K3 w - - 0 1

Code: Select all

[25] 12.90 Df6+ Fxf6 gxf6+ Dxf6 exf6+ Rxf6 Fxc5 Tfe8 Txh7 d4 Fxd4+ e5 Fe3 Th8 Tgh3 Txh7 Txh7 Td8 Th4 Rg7 f4 exf4 Txf4 Te8 Rf2 Rg8 Td4 Rf8 Tc4 Te5 Tf4 f5 Fd4 Re7 Fxe5 Re6

d:26/55 1:Df6+ t:112.7 n:82773k nps:734k tb:18 h:63
8.5 years ago, a lot of engines already solved this one : http://talkchess.com/forum3/viewtopic.php?f=2&t=44622
Yes, I think I could recall having seen this position before. It seems that moves like Qf6+ are pruned away now, even for "tactical" engines.
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Vinvin
Posts: 5228
Joined: Thu Mar 09, 2006 9:40 am
Full name: Vincent Lejeune

Re: Arasan20 testsuite VS 4 top solvers

Post by Vinvin »

jdart wrote: ↑Thu Jan 07, 2021 7:40 pm Another couple of positions that were mentioned:

Code: Select all

...
There still 2 positions :

Is this one correct ? What's the point of c5 ?
71) c4-c5 2r3k1/1bp3pp/pp1pNn1r/3P1p1q/1PP1pP2/P3P1P1/3Q3P/2RR1BK1 w - - bm c5; id "arasan20.71"; c0 "Komodo 10.4-Andscacs 0.89, Andreas Strangmüller 2017";

For this one Rd2 is also an easy win
65) Rc6-c8 3r2k1/6p1/B1R2p1p/1pPr1P2/3P4/8/1P3nP1/2KR4 w - - bm Rc8; id "arasan20.65"; c0 "Ruffian-Arasan, test game 2009";
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Dann Corbit
Posts: 12541
Joined: Wed Mar 08, 2006 8:57 pm
Location: Redmond, WA USA

Re: Arasan20 testsuite VS 4 top solvers

Post by Dann Corbit »

Here are my database positions for the 9 new ones:

Code: Select all

4rb1k/6pp/NR3p2/P2Pp2q/6bP/4BnP1/5PK1/2R2Q2 b - - acd 50; bm Qf5; ce 336; c0 "Arasan-exeComp, FICS 2018"; c3 "Qf5"; pm Qf5; pv Qf5 Qh1 g5 hxg5 Nxg5 Kf1 Bf3 Qh4 Rc8 Ra1 Bxd5 Rxf6 Qxf6 Nc7 Rxc7 Qxg5 Qxg5 Bxg5 Kg7 Bd2 Rc2 Be3 Ra2 Rxa2 Bxa2 Ke2 Bc4+ Kf3 Ba6 g4 Bb4 Bb6 Kg6 Kg3 Bd6 Kh4 Be2 Be3 Be7+ Kg3 Bb4 Bb6 h5 gxh5+ Kxh5 Bc7 Bc3 Bb8 Ba6 Bc7 Kg6 Bb6 Kg5 Bc7 Kf5 Bd6; id "arasan20.121"; 
r1q1r1k1/p1p2ppp/1p3nn1/1BP2b2/4p3/B1P1P2P/P1QN1PP1/R2R2K1 b - - acd 45; bm Bxh3; ce 242; c0 "Deep Shredder 13-Lc0k 0.23.2 384x30 T-40-2036, FGRL 16-core 2020"; c3 "Bxh3"; pm Bxh3; pv Bxh3 f3; id "arasan20.148"; 
r2qkbnr/ppp1pppp/3p4/3Pn3/4P1b1/5N2/PPP2PPP/RNBQKB1R w KQkq - acd 55; bm Nxe5; ce 121; c0 "Nimzo-Indian queen sac"; c3 "Nxe5"; pm Bb5+ {8} Nxe5 {6} Be2 {4}; pv Nxe5 Bxd1 Bb5+ c6 dxc6 a6 c7+ axb5 cxd8=R+ Rxd8 Nxf7 Kxf7 Kxd1 d5 e5 e6 Nc3 b4 Nb5 Bc5 Bd2 Ne7 a4 d4 Re1 Rd5 Re4 Nc6 f4 Ne7 Ke2 Rc8 Kd3 Nf5 g3 h5 Rg1 Bb6 Rc1 Bc5 b3 Bf8 Re2 Bc5 Ra1 Ne3 h3 Rdd8 Rc1 Rd5 Rf2 Rdd8 Rh2 Rd7 Ra1 Rd5 Re1 Rcd8 Rc1 R5d7 Rhh1 Rh8 Rhg1 Rc8; id "arasan20.158"; 
r3r1k1/4qp1p/4p1p1/p2pP3/2pN1PP1/8/3Q3P/2R2R1K w - - acd 55; bm f5; ce 221; c0 "Antifish-Komodo MC, CCC 8: Deep Dive 2019"; c3 "f5"; pm f5; pv f5 exf5 Rce1 c3 Qxc3 f4 Qd2 a4 Qxf4 a3 Rf2 Ra6 Ree2 Rea8 Ra2 Ra4 h3 Qa7 Rfd2 Qb8 Kg2 Qb1 Rdc2 Qb6 Rf2 Rf8 Rfd2 Qb1 Qe3 Qe4+ Kf2 Qh1 Kg3 Qe4 Qxe4 dxe4 Kf4 Re8 Nc2 Ra5 Ne3 Raxe5 Rxa3 R5e6 Kg3 Kg7 Ra7 Rf6 Rf2 Rxf2 Kxf2 Rd8 h4 h6 Re7 Rd2+ Kg3 Rd3 Kf4 Rd2 Rxe4 Rb2 Rc4 Rb3 Rc7 Kf8 Rd7 Rb4+ Kg3 Rb3 Kf3 Rb2 Rd8+ Kg7; id "arasan20.170"; 
r2q1rk1/1p3pp1/p3b1n1/3pP1Q1/P1pP4/2N1P3/1P4BP/R4RK1 w - - acd 42; bm Rf6; ce 515; c0 "wardog218-Arasan, ICC 2020"; c3 "Rf6"; pm Rf6; pv Rf6 Re8 Raf1 Re7 Nxd5 Bxd5 Rd6 Bxg2 Rxd8+ Rxd8 Qxg2 b5 a5 Rde8 Qc6 Re6 Qb7 R8e7 Qd5 Re8 Rf2 R6e7 Qc6 Re6 Qe4 Nf8 Qb7 R8e7 Qd5 Rg6+ Kf1 Rge6 h4 Nh7 Rf5 Re8 h5 R8e7 Qa8+ Re8 Qg2 R6e7 Rf2 Kh8 h6 g6 Qc6 Re6 Qb7 R8e7 Qf3 Re8 Qg4 R6e7 d5 c3 bxc3 Rxe5 d6 Rf8 Kg2 Re6; id "arasan20.174"; 
1q3r1k/6b1/B6p/2P5/1P1p2pQ/P3r3/6P1/1R1R2K1 b - - acd 42; bm g3; ce 1083; c0 "Arasan-DeathBook2020, ICC 2020"; c3 "g3"; pm g3; pv g3 Qh3 Rxa3 c6 Rxa6 b5 Rb6 Rbc1 Qc7 Qd7 Qxd7 cxd7 Rxb5 Rd3 Rd5 Rc7 Rd8 Kf1 Be5 Rc6 Kh7 Ke2 R8xd7 Rd2 Ra5 Re6 Rf7 Kd3 Rf2 Re7+ Kg6 Rd1 Rxg2 Re1 Rga2 Kc4 Rc2+ Kb3 d3 Re6+ Kh5 Rd1 Bd4 Rxd3; id "arasan20.37"; 
8/2k5/1p6/pP6/P7/2PN1B1p/4K3/1r6 b - - acd 69; bm Ra1; ce 1274; c0 "Fire-AllieStein, TCEC 2020"; c3 "Ra1"; pm Ra1; pv Ra1; id "arasan20.60"; 
2k2b1r/p4p2/4pP2/2pbP3/1pp1NB1P/6P1/qP3PB1/3RR1K1 w - - acd 43; bm Rxd5; ce 287; c0 "Lc0 0.22.0 11260-Laser 1.7, FGRL 16 core 2019"; c3 "Rxd5"; pm Rxd5; pv Rxd5 exd5 Ng5 Qxb2 Nxf7 Rh7 Ng5 Rh8 Bxd5 Qd4 Be4 b3 Nf3 Qd8 Bd2 Bd6 Bc3 Bxe5 Bxe5 Rf8 Rc1 Rxf6 Rxc4 Qb6 Bxf6 Qxf6 Rxc5+ Kd8 Rb5 b2 h5 a6 Rb7 Qh6 Kg2 Qxh5 Rxb2 Qc5 Rd2+ Ke7 Rd5 Qb4 Nd4 Qb2 Re5+ Kf7 Rf5+ Ke7 Nc6+ Ke6 Ra5 Qb6 Bf3 Kf7 Rf5+ Kg6 Be4 Kh6 Rd5 Qb2 Rd6+ Kg7 Nd4 a5 Nf5+ Kf7 Bd5+ Ke8 Ra6 Qb4 Ra8+ Kd7 Ra7+ Kd8; id "arasan20.61"; 
3q4/6kp/p1pp1pn1/Pr6/3PN1PP/8/5Q2/4R1K1 b - - acd 55; bm h5; ce 0; c0 "Hutnik-Arasan, FICS 2020"; c3 "h5"; pm h5; pv h5 Ng3 hxg4 Nf5+ Rxf5 Qxf5 Nxh4 Qxg4+ Ng6 Qf5 c5 Rb1 Qe7 Qf3 d5 Qd3 cxd4 Qxd4 Qc7 Qxd5 Qc3 Qf5 Qd4+ Kh1 Ne7 Qe6 Ng6 Rb6 Qd1+ Kh2 Qd2+ Kg1 Qd1+; id "arasan20.87";
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Dann Corbit
Posts: 12541
Joined: Wed Mar 08, 2006 8:57 pm
Location: Redmond, WA USA

Re: Arasan20 testsuite VS 4 top solvers

Post by Dann Corbit »

Here is multi-pv (4) analysis for the 9 new positions:

Code: Select all

4rb1k/6pp/NR3p2/P2Pp2q/6bP/4BnP1/5PK1/2R2Q2 b - - acd 50/82; acs 978; acn 49907167k; ce 336; bm Qf5; pv Qf5 Qh1 g5 hxg5 Nxg5 Kf1 Bf3 Qh4 Rc8 Ra1 Bxd5 Rxf6 Qxf6 Nc7 Rxc7 Qxg5 Qxg5 Bxg5 Kg7 Bd2 Rc2 Be3 Ra2 Rxa2 Bxa2 Ke2 Bc4+ Kf3 Ba6 g4 Bb4 Bb6 Kg6 Kg3 Bd6 Kh4 Be2 Be3 Be7+ Kg3 Bb4 Bb6 h5 gxh5+ Kxh5 Bc7 Bc3 Bb8 Ba6 Bc7 Kg6 Bb6 Kg5 Bc7 Kf5 Bd6;
4rb1k/6pp/NR3p2/P2Pp2q/6bP/4BnP1/5PK1/2R2Q2 b - - acd 50/65; acs 978; acn 49907167k; ce 11; bm f5; pv f5 Nc7 Nxh4+ gxh4 Qxh4 Bg5 Qxg5 Ne6 Rxe6 Rc8 Rf6 Rxf6 gxf6 Qc1 Qg8 Qc6 Be2+ Kh2 Qf7 Qe8 Qxe8 Rxe8 Kg7 Ra8 f4 a6 Bc4 a7 Bxd5 Rd8 Bf3 a8Q Bxa8 Rxa8 Kf7 Kh3 Bc5 Kg2 Kg6 Rg8+ Kh5 Rd8 h6 Rc8 Bd4 Rd8 Kg4 f3+ Kf5 Rh8 Kg6 Rc8 h5 Rh8 Bb2 Kf2 Bc1 Rg8+ Kf7 Rh8 Be3+ Ke1 Kg6 Kf1 Bb6;
4rb1k/6pp/NR3p2/P2Pp2q/6bP/4BnP1/5PK1/2R2Q2 b - - acd 50/38; acs 978; acn 49907167k; ce 0; bm Qg6; pv Qg6 Qh1 Qe4 Nc7 Rc8 a6 f5 a7 f4 Rb8 fxe3 Rxc8 Bxc8 fxe3 Qxe3 Ne6 Qd2+ Kh3 Qxd5 Rxc8 Qxe6+ g4 Qxc8 Qxf3 e4 Qg3 Qa6 Qb8 Qd3+ Kh2 Qd2+ Kg1 Qe3+ Kf1 Qf3+ Kg1;
4rb1k/6pp/NR3p2/P2Pp2q/6bP/4BnP1/5PK1/2R2Q2 b - - acd 50/11; acs 978; acn 49907167k; ce 0; bm Nxh4+; pv Nxh4+ gxh4 Be2 Qg1 Qg4+ Kh2 Qxh4+ Kg2 Qg4+ Kh2;
r1q1r1k1/p1p2ppp/1p3nn1/1BP2b2/4p3/B1P1P2P/P1QN1PP1/R2R2K1 b - - acd 45/79; acs 900; acn 43821859k; ce 242; bm Bxh3; pv Bxh3 f3;
r1q1r1k1/p1p2ppp/1p3nn1/1BP2b2/4p3/B1P1P2P/P1QN1PP1/R2R2K1 b - - acd 44/83; acs 900; acn 43821859k; ce 91; bm Re5; pv Re5 Nc4 Bxh3 Nxe5 Nxe5 Kf1 Bxg2+ Kxg2 Qg4+ Kf1 c6 cxb6 cxb5 b7 Qh3+ Ke1 Rb8 Rab1 Qh1+ Kd2 Qh2 Kc1 Nd3+ Rxd3 exd3 Qxd3 Qh1+ Kb2 Qxb7 Ka1 Qe4 Qd4 h5 c4 a6 c5 Qxd4+ exd4 Rc8 Rg1 g6 Kb1 Kg7 Kc2 Nd5 Kd3 f5 Ke2 h4 Bc1 Kf7 Kf3 h3 Rh1 Rh8 Bg5 h2 Kg2 Ke6 Rxh2;
r1q1r1k1/p1p2ppp/1p3nn1/1BP2b2/4p3/B1P1P2P/P1QN1PP1/R2R2K1 b - - acd 44/83; acs 900; acn 43821859k; ce 31; bm Nh4; pv Nh4 Bxe8 Qxe8 g3 Ng6 g4 Bd7 Nxe4 Nxe4 Rxd7 Nxf2 Qf5 Nxh3+ Kf1 Ne5 c6 h6 Rad1 g6 Qe4 Ng5 Qb4 Nxc6 Qf4 Rc8 c4 Qe4 R1d2 Qe6 R2d5 Ne4 Qxh6 Qf6+ Qf4 Qxf4+ exf4 Nf6 Ke2 Nxd7 Rxd7 Re8+ Kd2 Rd8 Rxd8+ Nxd8 Ke3 c5 Ke4 Kf8 Bb2 Nc6 a3 Na5 Kd5 Ke7 Be5 Kd7 Bc3 Nb3 Ke5 Ke7 a4 Nc1 f5 Nd3+ Ke4 Nb4 Bb2 gxf5+ gxf5 Ke8 Bc1 Kd7 Bf4 Kc6 Bg5;
r1q1r1k1/p1p2ppp/1p3nn1/1BP2b2/4p3/B1P1P2P/P1QN1PP1/R2R2K1 b - - acd 44/57; acs 900; acn 43821859k; ce 0; bm Re6; pv Re6 f4 Nh4 Nb3 c6 Bf1 Nd5 Qf2 Rh6 c4 Bxh3 cxd5 Bxg2 Bxg2 Nxg2 Qxg2 Rg6 Rd2 cxd5 Kh2 Rxg2+ Rxg2 g6 cxb6 axb6 Bb2 b5 Rc1 Qd8 Bd4 Ra4 Kg1 Rc4 Rf1 Qh4 f5 Qh3 Rh2 Qg3+ Rg2;
r2qkbnr/ppp1pppp/3p4/3Pn3/4P1b1/5N2/PPP2PPP/RNBQKB1R w KQkq - acd 43/74; acs 900; acn 39903478k; ce 62; bm Nxe5; pv Nxe5 Bxd1 Bb5+ c6 dxc6 a6 c7+ axb5 cxd8Q+ Rxd8 Nxf7 Kxf7 Kxd1 Nf6 Re1 e6 c3 d5 exd5 Bc5 Kc2 exd5 Be3 Bxe3 fxe3 Rhe8 Nd2 Rd7 a4 bxa4 Rxa4 Ke6 e4 Kd6 Rd4 b5 Rb4 Rb7 Re2 h5 Kd3 Nxe4 Nxe4+ dxe4+ Rexe4 Rxe4 Kxe4 Kc5 Kd3 Rf7 Rh4 g6 b4+ Kc6 Ke2 Re7+ Kf3 Re1 Rf4 Rh1 Rf6+ Kd5 Rxg6 Rxh2;
r2qkbnr/ppp1pppp/3p4/3Pn3/4P1b1/5N2/PPP2PPP/RNBQKB1R w KQkq - acd 43/64; acs 900; acn 39903478k; ce 18; bm Bb5+; pv Bb5+ Nd7;
r2qkbnr/ppp1pppp/3p4/3Pn3/4P1b1/5N2/PPP2PPP/RNBQKB1R w KQkq - acd 42/57; acs 900; acn 39903478k; ce 22; bm Nbd2; pv Nbd2 Nf6 h3 Bxf3 Nxf3 Ned7 Bd3 g6 Be3 c6 c4 Qa5+ Bd2 Qc7 0-0 Bg7 Rc1 0-0 Qc2 a5 b3 Nc5 Rfe1 e6 Be3 e5 a3 Nxd3 Qxd3 c5 a4 b6 Red1 Qe7 Kh2 Rae8 Qc2 h5 Nd2 Nh7 Nb1 f5 Nc3 f4 Bd2 g5 f3;
r2qkbnr/ppp1pppp/3p4/3Pn3/4P1b1/5N2/PPP2PPP/RNBQKB1R w KQkq - acd 42/60; acs 900; acn 39903478k; ce 22; bm Be2; pv Be2 Nxf3+ gxf3 Bd7 h4 h5 Be3 g6 c4 Bg7 Nc3 c5 a4 Nf6 Qc2 a6 Rg1 Qc7 Rg2 Nh7 0-0-0 Bf6 Rh1 Bd4 Qd2 Bf6 Kc2 Qa5 b3 0-0-0 f4 Rdg8 Nb1 Qc7 Rgg1 Re8 Nc3 Qa5 Nd1 Qxd2+ Kxd2 b6 Kc2 Rhg8 Rg3 e5 Nc3 exf4;
r3r1k1/4qp1p/4p1p1/p2pP3/2pN1PP1/8/3Q3P/2R2R1K w - - acd 45/76; acs 900; acn 46170841k; ce 30; bm f5; pv f5 exf5 Rce1 c3 Qxc3 fxg4 Qg3 a4 Qxg4 Kh8 Qg3 a3 e6 fxe6 Rxe6 Qg7 Rxe8+ Rxe8 Qxa3 Qe7 Qc3 Kg8 Rf3 Qe4 Kg1 Qg4+ Kf1 Rc8 Qe3 Ra8 Qe6+ Qxe6 Nxe6 h6 Rf6 Ra1+ Kf2 Ra6 Kf3 Ra3+ Kg4 Ra4+ Kg3 Ra3+ Rf3 Ra7 Nf4 g5 Nxd5 Kg7 Rc3 Ra4 Rc7+ Kg6 Rc6+ Kg7 Nc3 Rf4 Ra6 Rc4 Nd1 h5 Ra3 Rb4 Kg2 Kf6 Ne3 Rb2+ Kh1;
r3r1k1/4qp1p/4p1p1/p2pP3/2pN1PP1/8/3Q3P/2R2R1K w - - acd 45/39; acs 900; acn 46170841k; ce 7; bm Rc2; pv Rc2 a4;
r3r1k1/4qp1p/4p1p1/p2pP3/2pN1PP1/8/3Q3P/2R2R1K w - - acd 44/72; acs 900; acn 46170841k; ce 9; bm Ra1; pv Ra1 a4 Qc3 Ra6 f5 Rb8 f6 Qf8 Qa3 h6 Qxf8+ Rxf8 Ra2 Rb8 Kg2 a3 Rfa1 c3 Kf3 Ra4 Ke3 c2 Rxc2 Rbb4 Rd2 g5 Raa2 Rb1 Rd3 Re1+ Kf2 Rxe5 h3 Kh7 Raxa3 Rb4 Rd2 Re4 Ne2 h5 gxh5 Rh4 Ra7 Rxh5 Rxf7+ Kg6 Ra7 Kxf6 Kg2 g4 hxg4 Rxg4+ Ng3 Rhg5 Ra3 Ke5 Rb3 Rg8 Kf2;
r3r1k1/4qp1p/4p1p1/p2pP3/2pN1PP1/8/3Q3P/2R2R1K w - - acd 44/69; acs 900; acn 46170841k; ce 6; bm Kg2; pv Kg2 a4 Rc2 a3 Ra2 Ra4 Qc3 Rea8 Kg3 h6 h4 Kh7 Rfa1 Qa7 Kh3 Qa5 Rc1 Qb4 Qxb4 Rxb4 Rc3 Rb1 Rcxa3 Rxa3+ Rxa3 Rd1 Nb5 g5 f5 Rh1+ Kg2 Rxh4 Kg3 h5 gxh5 exf5 Ra7 Rg4+ Kh3 Re4 Nd6 Rxe5 Kg3 c3 Nxf7 Re1 Rc7 d4 Nxg5+ Kh6 Kh4 Rh1+ Nh3;
r2q1rk1/1p3pp1/p3b1n1/3pP1Q1/P1pP4/2N1P3/1P4BP/R4RK1 w - - acd 41/66; acs 900; acn 44125286k; ce 236; bm Rf6; pv Rf6;
r2q1rk1/1p3pp1/p3b1n1/3pP1Q1/P1pP4/2N1P3/1P4BP/R4RK1 w - - acd 40/70; acs 900; acn 44125286k; ce 70; bm Qg3; pv Qg3 b5 e4 dxe4 Rad1 b4 Nxe4 Qh4 Nd6 Qxg3 hxg3 Rab8 Rf2 c3 Be4 Ne7 d5 Bd7 bxc3 bxc3 Rc1 Nc8 Nc4 Rb4 Rxc3 Rxa4 e6 Bb5 Ne5 Nd6 exf7+ Nxf7 Bf5 Ra1+ Kg2 Nxe5 Be6+ Nf7 Bxf7+ Kh8 Rc7 Rd1 Kf3 Rxf7+ Rxf7 Rxd5 Ra7 Kh7 Ke4 Rg5 Kf4 Rd5 Rh2+ Kg8 Rh1 Rd4+ Kf5 Rd7 Rxd7 Bxd7+ Ke5 Bb5 Rc1 Kh7 Rc7 Bd3 Ra7 Bf1 Ke4;
r2q1rk1/1p3pp1/p3b1n1/3pP1Q1/P1pP4/2N1P3/1P4BP/R4RK1 w - - acd 40/67; acs 900; acn 44125286k; ce 56; bm h4; pv h4 Qxg5 hxg5 Ne7 a5 Rab8 e4 Rfd8 exd5 Bxd5 Nxd5 Nxd5 Rae1 b6 g6 fxg6 e6 bxa5 e7 Nxe7 Rxe7 Rxd4 Rf2 Rf8 Rc2 Rf6 Kh2 Rfd6 Kg3 Rd3+ Kf4 Rd2 Re2 Rxe2 Rxe2 Kf7 Be4 Rb6 Ke5 g5 Bf3 Rb4 Kd5 Kf6 Bg4 Rb3 Re6+ Kf7 Bh5+ g6 Bxg6+ Kg7 Bh5 Rb5+ Kxc4 Rxb2 Rxa6 Rb4+ Kc5;
r2q1rk1/1p3pp1/p3b1n1/3pP1Q1/P1pP4/2N1P3/1P4BP/R4RK1 w - - acd 40/59; acs 900; acn 44125286k; ce 24; bm Qh5; pv Qh5 b5 e4 dxe4 Rad1 b4 Nxe4 Qh4 Qxh4 Nxh4 d5 Bd7 Nc5 Nxg2 Kxg2 Rfd8 Kf2 Bh3 Rg1 c3 bxc3 bxc3 Rd4 c2 Rc1 Bf5 Ke3 Rab8 Nxa6 Rb1 Kd2 f6 e6 Bxe6 Kxc2 Rxc1+ Kxc1 Rxd5 Rxd5 Bxd5 a5 Kf7 Kd2 Ke6 Nb4 Bb7 Ke3 Kd6 a6 Bc8 Kd4;
1q3r1k/6b1/B6p/2P5/1P1p2pQ/P3r3/6P1/1R1R2K1 b - - acd 41/63; acs 900; acn 55382568k; ce 680; bm g3; pv g3;
1q3r1k/6b1/B6p/2P5/1P1p2pQ/P3r3/6P1/1R1R2K1 b - - acd 40/64; acs 900; acn 55382568k; ce 41; bm Qa8; pv Qa8 Bb5 Qd5 Re1 Qe5 Rf1 Rb8 Bd7 d3 c6 d2 Rbd1 Rf8 Bxg4 Re4 Rxf8+ Bxf8 Rf1 Qd4+ Qf2 Rxg4 Qxd4+ Rxd4 Rd1 Rc4 Rxd2 Rxc6 Rd3 Rc2 Rb3 Kg7 b5 Bc5+ Kh2 Ra2 b6 Bxa3 b7 Bd6+ Kh3 Bb8 g3 Rd2 Kh4 Rd4+ Kh3 Rc4 Kg2 Rc5 Kh3 Kg6 Kh4 Rh5+ Kg4 Ra5 Rb6+ Kg7 Rb3 Ra1 Kh3 Kh7 Kg2 Ra2+ Kh3;
1q3r1k/6b1/B6p/2P5/1P1p2pQ/P3r3/6P1/1R1R2K1 b - - acd 40/53; acs 900; acn 55382568k; ce 23; bm Rxa3; pv Rxa3 Ra1 Rxa1 Rxa1 d3 Bxd3 Qf4 Re1 Qd4+ Kh2 Qxd3 Qxg4 Qc3 Qe4 Rd8 Re3 Qf6 Qg4 Qf2 Re2 Qf7 Qf3 Qg6 g3 Rf8 Qe3 Kh7 Kg2 Rd8 Qe4 Rd4 Qxg6+ Kxg6 b5 Rc4 c6 Kf7 Re1 Rc3 Kh3 Rc5 Kg4 Bd4 Rf1+ Kg6 Re1 Bf6 Rb1 Be5 Rb3 Bd6 Kh3 Kg5;
1q3r1k/6b1/B6p/2P5/1P1p2pQ/P3r3/6P1/1R1R2K1 b - - acd 40/37; acs 900; acn 55382568k; ce 0; bm Qe5; pv Qe5 Rf1 g3 Rxf8+ Bxf8 Rf1 Re1 Qg4 Rxf1+ Kxf1 Qf6+ Ke1 Qxa6 Qxd4+ Bg7 Qd8+ Kh7 Kd2 Qxa3 Qd3+ Qxd3+ Kxd3 h5 Ke4 h4 Kf3 Bf6 b5 Bd8 Kg4 Kg7 c6 Kf7 c7 Bxc7 Kxh4;
8/2k5/1p6/pP6/P7/2PN1B1p/4K3/1r6 b - - acd 53/51; acs 900; acn 76836107k; ce 553; bm Ra1; pv Ra1;
8/2k5/1p6/pP6/P7/2PN1B1p/4K3/1r6 b - - acd 53/62; acs 900; acn 76836107k; ce 18; bm h2; pv h2 Kd2 Ra1 Nb2 h1Q Bxh1 Rxh1 Kc2 Ra1 Kb3 Kd6 Kc2 Kc5 Kb3 Kd5 Nc4 Rb1+ Nb2 Rf1 Kc2 Rf4 Kb3 Rf7 Nc4 Rb7 Nb2 Kc5 Nd3+ Kd6 Nb2 Rc7 Nc4+ Kc5 Ne3 Rg7 Nc4 Rg1 Nb2 Rg4 Nd3+ Kd6 Nb2 Re4 Nc4+ Kc7 Na3 Rh4 Nc4 Rf4 Nb2 Rf5 Nc4 Rf8 Nb2 Kb7 Nc4 Rf4 Nb2 Rf1 Nd3 Ka7 Nb2;
8/2k5/1p6/pP6/P7/2PN1B1p/4K3/1r6 b - - acd 53/63; acs 900; acn 76836107k; ce 18; bm Rg1; pv Rg1 Bc6 h2 Kd2 Ra1 Nb2 h1Q Bxh1 Rxh1 Kc2 Ra1 Kb3 Kd6 Kc2 Kc5 Kb3 Kd5 Nc4 Rb1+ Nb2 Rf1 Kc2 Rf4 Kb3 Rf7 Nc4 Rb7 Nb2 Kc5 Nd3+ Kd6 Nb2 Rc7 Nc4+ Kc5 Ne3 Rg7 Nc4 Rg1 Nb2 Rg4 Nd3+ Kd6 Nb2 Re4 Nc4+ Kc7 Na3 Rh4 Nc4 Rf4 Nb2 Rf5 Nc4 Rf8 Nb2 Kb7 Nc4 Rf4 Nb2 Ka7 Nc4 Rg4;
8/2k5/1p6/pP6/P7/2PN1B1p/4K3/1r6 b - - acd 53/58; acs 900; acn 76836107k; ce 18; bm Kb8; pv Kb8 Kd2 Ra1 Nb2 Rf1 Bc6 Rg1 Kc2 Kc7 Nc4 h2 Kb2 Rf1 Kb3 h1Q Bxh1 Rxh1 Ka2 Rh5 Kb3 Rd5 Nb2 Rd8 Nc4 Rf8 Nb2 Kb7 Nc4 Rf4 Nb2 Ka7 Nc4 Rg4 Nd6 Kb8 Nc4 Kc7 Na3 Rh4 Nc4 Rf4 Nb2 Rg4 Nc4 Rg1 Nb2 Kd6 Nc4+ Kc5 Nb2 Rg4 Nd3+ Kd6 Nb2 Re4 Nc4+ Kc5 Nb2;
2k2b1r/p4p2/4pP2/2pbP3/1pp1NB1P/6P1/qP3PB1/3RR1K1 w - - acd 43/83; acs 929; acn 47681916k; ce 287; bm Rxd5; pv Rxd5 exd5 Ng5 Qxb2 Nxf7 Rh7 Ng5 Rh8 Bxd5 Qd4 Be4 b3 Nf3 Qd8 Bd2 Bd6 Bc3 Bxe5 Bxe5 Rf8 Rc1 Rxf6 Rxc4 Qb6 Bxf6 Qxf6 Rxc5+ Kd8 Rb5 b2 h5 a6 Rb7 Qh6 Kg2 Qxh5 Rxb2 Qc5 Rd2+ Ke7 Rd5 Qb4 Nd4 Qb2 Re5+ Kf7 Rf5+ Ke7 Nc6+ Ke6 Ra5 Qb6 Bf3 Kf7 Rf5+ Kg6 Be4 Kh6 Rd5 Qb2 Rd6+ Kg7 Nd4 a5 Nf5+ Kf7 Bd5+ Ke8 Ra6 Qb4 Ra8+ Kd7 Ra7+ Kd8;
2k2b1r/p4p2/4pP2/2pbP3/1pp1NB1P/6P1/qP3PB1/3RR1K1 w - - acd 43/72; acs 929; acn 47681916k; ce 156; bm Rd2; pv Rd2 Bc6 Red1 Rg8 Ng5 Bxg2 Kxg2 Bh6 Nxf7 Bxf4 Nd6+ Kb8 f7 Rf8 gxf4 Qb3 Nb5 Rxf7 Rd8+ Kb7 Nd6+ Kc6 Nxf7 Qxb2 Rc8+ Kb6 Rb8+ Ka5 Nd6 Ka4 Nxc4 Qc2 Ra1+ Kb3 Ne3 Qe4+ Kg3 Qg6+ Kf3 Qh5+ Kg2 Qxh4 Rb5 Qxf4 Rxc5 Qe4+ Kg1 Qb7 Rca5 Kb2 Rxa7 Qe4 R7a2+ Kb3 Ra6 Kb2 Rd1 b3 Rxe6 Kc3 Ra6 Qxe5;
2k2b1r/p4p2/4pP2/2pbP3/1pp1NB1P/6P1/qP3PB1/3RR1K1 w - - acd 42/73; acs 929; acn 47681916k; ce 106; bm Bf1; pv Bf1 c3 bxc3 b3 Ng5 b2 Nxf7 Rg8 Nd6+ Kc7 c4 Bc6 Rb1 Rg4 Be3 Kd7 Bh3 Rd4 h5 Qb3 Bg2 Rd3 Bf4 Rd4 h6 Rxf4 h7 Rxf2 Bxc6+ Kxc6 Kxf2 Qc2+ Kg1 Qxh7 Ne4 Qf5 Rxb2 Qxe5 Rf2 Bh6 Kg2 a5 Rf3 a4 Rd3 Qb2+ Kh3 a3 f7 Qg7 Rd6+ Kb7 Nxc5+ Ka8 Rexe6 Qxf7;
2k2b1r/p4p2/4pP2/2pbP3/1pp1NB1P/6P1/qP3PB1/3RR1K1 w - - acd 42/68; acs 929; acn 47681916k; ce 49; bm Ng5; pv Ng5 Bxg2 Kxg2 Qa6 f3 Qb7 Ra1 Kb8 Red1 Bh6 Nxe6 Qc8 Ng5 Bxg5 Bxg5 Qe6 Bf4 c3 bxc3 b3 g4 Rxh4 Kg3 Rh8 Rd7 b2 Rb1 Qa2 e6+ Ka8 Rdd1 Qxe6 Rxb2 Qxf6 Rdb1 Qh4+ Kg2 a6 Rb6 Ka7 Bb8+ Rxb8 Rxb8 Qe7 R1b2 Qc7 R8b3 Qe7 Rb6 c4 R6b4 a5 Rxc4 f5 gxf5 Qe5 f6 Qg5+ Kf2 Qe5 f4 Qxf6 Re2 Qh4+ Ke3 Qe7+ Kd2;
3q4/6kp/p1pp1pn1/Pr6/3PN1PP/8/5Q2/4R1K1 b - - acd 40/41; acs 960; acn 52288484k; ce 0; bm h5; pv h5 Rf1 hxg4 Nxf6 g3 Qxg3 Qh8 d5 Qxh4 Ne8+ Kh6 Qxh4+ Nxh4 dxc6 Rxa5 c7 Rc5 Rf7 Kg6 Rg7+ Kh6;
3q4/6kp/p1pp1pn1/Pr6/3PN1PP/8/5Q2/4R1K1 b - - acd 40/95; acs 960; acn 52288484k; ce -211; bm Rxa5; pv Rxa5 h5 Nf8 Ng3 Rb5 Nf5+ Kh8 Qf4 Qa5 Rf1 Nd7 Qxd6 Qd8 Re1 Qg8 Kh2 Rb2+ Kh1 Qb8 h6 a5 Qxb8+ Rxb8 Nd6 Nf8 Re7 Rb1+ Kh2 Rb2+ Kg3 Rb3+ Kg2 Rb2+ Kf3 Rb3+ Ke4 Rh3 Rf7 Ng6 Rc7 Nf8 Rxc6 Kg8 Nf5 Rh2 Rxf6 Re2+ Ne3 a4 Ra6 Kf7 Rxa4 Kf6 Ra5 Ne6 Ra6 Kf7 Rd6 Rf2 Nc4 Re2+ Kf3 Re1 d5 Ng5+ Kf4 Nh3+ Kg3 Ng5 Ra6 Rd1 Kf4 Nh3+ Ke4 Re1+ Ne3 Re2 Kd3 Rh2 Kd4 Rh1 Nc4 Rd1+ Kc5 Ke7 Re6+ Kd8;
3q4/6kp/p1pp1pn1/Pr6/3PN1PP/8/5Q2/4R1K1 b - - acd 40/90; acs 960; acn 52288484k; ce -285; bm Rb8; pv Rb8 h5 d5 Ng3 Nh4 h6+ Kf7 Nf5 Ng6 Qg3 Kg8 Qe3 Qd7 Qe6+ Qxe6 Rxe6 Rb1+ Kf2 Rb2+ Ke1 Rb1+ Kd2 Kf7 Rxc6 Rg1 Rxa6 Rxg4 Rb6 Nf8 a6 Rg2+ Kc3 Ra2 Nd6+ Kg6 Nb5 Kxh6 a7 Kg5 Rb8 Ng6 a8Q Rxa8 Rxa8 h5 Kd2 Ne7 Ke3 Kg4 Nc3 Nf5+ Kd3 h4;
3q4/6kp/p1pp1pn1/Pr6/3PN1PP/8/5Q2/4R1K1 b - - acd 40/90; acs 960; acn 52288484k; ce -328; bm h6; pv h6 Ng3;
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Vinvin
Posts: 5228
Joined: Thu Mar 09, 2006 9:40 am
Full name: Vincent Lejeune

Re: Arasan20 testsuite VS 4 top solvers

Post by Vinvin »

jdart wrote: ↑Fri Jan 08, 2021 11:45 pm I would like to suggest the following replacements for the problematic positions. These are from a list of candidate test positions I have been collecting. None are super-hard but difficult enough to be interesting IMO.

Code: Select all

r2r1k2/p3qpp1/1p1ppn1p/n5B1/P1PNbP2/2P3Q1/4B1PP/4RRK1 w - - bm Bg4; id "arasan 20.3"; c0 "Minic-Weiss, TCEC 2020";
1q3r1k/6b1/B6p/2P5/1P1p2pQ/P3r3/6P1/1R1R2K1 b - - bm g3; id "arasan20.37"; c0 "Arasan-DeathBook2020, ICC 2020";
8/2k5/1p6/pP6/P7/2PN1B1p/4K3/1r6 b - - bm Ra1; id "arasan20.60"; c0 "Fire-AllieStein, TCEC 2020";
2k2b1r/p4p2/4pP2/2pbP3/1pp1NB1P/6P1/qP3PB1/3RR1K1 w - - bm Rxd5; id "arasan20.61"; c0 "Lc0 0.22.0 11260-Laser 1.7, FGRL 16 core 2019";
3q4/6kp/p1pp1pn1/Pr6/3PN1PP/8/5Q2/4R1K1 b - - bm h5; id "arasan20.87"; c0 "Hutnik-Arasan, FICS 2020";
4rb1k/6pp/NR3p2/P2Pp2q/6bP/4BnP1/5PK1/2R2Q2 b - - bm Qf5; id "arasan20.121"; c0 "Arasan-exeComp, FICS 2018";
r1q1r1k1/p1p2ppp/1p3nn1/1BP2b2/4p3/B1P1P2P/P1QN1PP1/R2R2K1 b - - bm Bxh3; id "arasan20.148"; c0 "Deep Shredder 13-Lc0k 0.23.2 384x30 T-40-2036, FGRL 16-core 2020";
r2qkbnr/ppp1pppp/3p4/3Pn3/4P1b1/5N2/PPP2PPP/RNBQKB1R w KQkq - bm Nxe5; id "arasan20.158"; c0 "Nimzo-Indian queen sac";
r3r1k1/4qp1p/4p1p1/p2pP3/2pN1PP1/8/3Q3P/2R2R1K w - - bm f5; id "arasan20.170"; c0 "Antifish-Komodo MC, CCC 8: Deep Dive 2019";
r2q1rk1/1p3pp1/p3b1n1/3pP1Q1/P1pP4/2N1P3/1P4BP/R4RK1 w - - bm Rf6; id "arasan20.174"; c0 "wardog218-Arasan, ICC 2020";
I quickly checked, one position seems unclear for me :
8/2k5/1p6/pP6/P7/2PN1B1p/4K3/1r6 b - - bm Ra1; id "arasan20.60"; c0 "Fire-AllieStein, TCEC 2020";

1) Ra1 could be found by luck.
2) Is this move winning ?

I only found a slight advantage after :

[Event "e"]
[Site "s"]
[White "w"]
[Black "b"]
[Result "*"]
[FEN "8/2k5/1p6/pP6/P7/2PN1B1p/4K3/1r6 b - - 0 1"]

1. ... Ra1 2. Nf4 h2 3. Nd5+ Kb7 4. c4 Ka7 5. Nc3 Rg1 6. Bc6 Rg3 7. Kd2 Kb8 8. Bh1 Rg1 9. Bf3 Rg3 *
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