Arasan 19.0 + updated test suite

[velmarin]

And what's your entry in the Arena where are tablebase Syzygy.

Load the engine, load configuration, this pop-up window appears, put your data.


Load Engines, configure Engine Analisis Outpot...
Mark Tablebase usage (see TBhits.)


I see TBhits...


In Fritz similar, fill in the parameters of the motor and you will see the TBhits...

[Vinvin]

Arasan Testsuite V19 with SF on an i7-6*4GHz+Syzygy : 156 found on 200.

Code: Select all

Analyzing engine: Stockfish_16050115_x64_modern
   Use seconds per move      : 30 Seconds per move
   Analysis Lines            : Minimum search depth=12
   Activate abort analysis   : True. Minimal analysis depth 22. Abort, if the correct move is held 3 additional ply


  1) g2-g4              g2-g4   * 0 Seconds
  2) Rf1xf7             Rf1xf7  * 2 Seconds
  3) Ng3-f5             Ng3-f5  * 0 Seconds
  4) Bd3xh7             Bd3xh7  * 1 Second
  5) Qe2-h5             Qe2-h5  * 0 Seconds
  6) Re1xe7             Re1xe7  * 5 Seconds
  7) Qd1-a4             Qd1-a4  * 1 Second
  8) .. Nb5xa3          Nb5xa3  * 0 Seconds
  9) .. c5-c4           c5-c4   * 3 Seconds
 10) g2-g4              Bg6-e4   
 11) .. Be8-g6          Be8-g6  * 1 Second
 12) Bg5-d8             Bg5-d2   
 13) .. Rf6-f3          b7-b6    
 14) Ng3-f5             Ng3-f5  * 1 Second
 15) .. Nf6xg4          Nf6xg4  * 13 Seconds
 16) Nf3xg5             g2-g4    
 17) Ng4xh6, e4-e5      Ng4xh6  * 6 Seconds
 18) Be3xh6, Ra1xa2     Be3xh6  * 2 Seconds
 19) h4-h5              h4-h5   * 3 Seconds
 20) Be3-h6             Qc2-f2   
 21) Nd5xf6             Nd5xf6  * 5 Seconds
 22) Bf1-g2             Bf1-g2  * 3 Seconds
 23) Qd2-f4             Qd2-f2   
 24) Ng5xh7             Ng5xh7  * 25 Seconds
 25) Qe3-d4             Qe3-d4  * 0 Seconds
 26) Rd3-g3             Rd3-g3  * 2 Seconds
 27) Ne5-g4             Ne5-g4  * 1 Second
 28) g4-g5              g4-g5   * 15 Seconds
 29) .. Be3-d4          Be3-d4  * 1 Second
 30) Qe5-h8             Qe5-h8  * 0 Seconds
 31) Rb1xb7             Rb1xb7  * 3 Seconds
 32) Nd4-c6             Nd4-c6  * 3 Seconds
 33) Na4xb6             Na4xb6  * 0 Seconds
 34) Qg5-h6             f2-f3    
 35) b2-b3              b2-b3   * 0 Seconds
 36) e4-e5              e4-e5   * 16 Seconds
 37) Re1xe6             Re1xe6  * 0 Seconds
 38) Bg5-f6             Nf3-d4   
 39) .. Ra8-a2          Ra8-a2  * 5 Seconds
 40) .. e4-e3           e4-e3   * 1 Second
 41) f5-f6              c6-c7      
 42) Bd3xh7             Bf4-e3   
 43) Rf5-e5             Rf5-e5  * 1 Second
 44) f5-f6              f5-f6   * 7 Seconds
 45) g3-g4              g3-g4   * 5 Seconds
 46) Qf3xf7             Qf3xf7  * 11 Seconds
 47) Ne4xf6, Ra1-d1     Ne4xf6  * 2 Seconds
 48) Bc1xh6, Ra1-d2     Bc1xh6  * 0 Seconds
 49) .. Bc8xg4          Bc8xg4  * 3 Seconds
 50) .. Nf5xg3(?)       Rh8-d8  * 0 Seconds
 51) Nb3-d4             Nb3-d4  * 0 Seconds
 52) .. Ne8-c7          Ne8-f6   
 53) a5-a6              a5-a6   * 16 Seconds
 54) Ka3-b2             Ka3-b2  * 0 Seconds
 55) g5-g6              g5-g6   * 0 Seconds
 56) Rd1xd6             Rd1xd6  * 3 Seconds
 57) .. Re2xg2          Re2xg2  * 0 Seconds
 58) g3-g4              g3-g4   * 0 Seconds
 59) g2-g3              Nf4-d3   
 60) Nf4xd5             Nf4xd5  * 3 Seconds
 61) Rh5xg5             Ra1-h1   
 62) .. Nf5xd4          Nf5xd4  * 4 Seconds
 63) .. Rf8-h8          Rf8-h8  * 0 Seconds
 64) f4-f5              f4-f5   * 3 Seconds
 65) Rc6-c8             Rc6-c8  * 19 Seconds
 66) Bd4-c5             Bd4-c5  * 8 Seconds
 67) Bd3-b5             Bd3-b5  * 4 Seconds
 68) Re1xe7             Re1xe7  * 1 Second
 69) Nd5-f6             Nd5-f6  * 1 Second
 70) Rf1-f3             Rf1-f3  * 1 Second
 71) Nd4-b5             Rf1-d1   
 72) Nf3-g5             Nf3-g5  * 0 Seconds
 73) Nd4-f5             Nd4-f5  * 5 Seconds
 74) f4-f5              f4-f5   * 29 Seconds
 75) Rg5xg7             Rg5-b5   
 76) g2-g4              g2-g4   * 1 Second
 77) Bb1xh7             Nc3-e4   
 78) e4-e5              e4-e5   * 1 Second
 79) .. g5-g4           g5-g4   * 1 Second
 80) Rf1-f2             Rf1-f2  * 6 Seconds
 81) .. Nf6-g4          Nf6-g4  * 10 Seconds
 82) Rg3xg7             Rg3xg7  * 2 Seconds
 83) .. h6-h5           h6-h5   * 0 Seconds
 84) Qd1xg4             Qd1xg4  * 22 Seconds
 85) Qd3-g6             Qd3-g6  * 0 Seconds
 86) Bg5xh6             Bg5xh6  * 1 Second
 87) g3-g4              g3-g4   * 5 Seconds
 88) Rb6xe6, Ra1-h2     Rb6xe6  * 5 Seconds
 89) Bc4xf7             Bc4xf7  * 1 Second
 90) .. Bc5xd4          Bc5xd4  * 21 Seconds
 91) Rf3-f6             Rf3-f2   
 92) Ng5xh7             Ng5xh7  * 3 Seconds
 93) Rd4xd5             Rd4xd5  * 1 Second
 94) Nc3xd5             Nc3xd5  * 0 Seconds
 95) a2-a3              a2-a3   * 3 Seconds
 96) Bd3xh7             Rf1-h1   
 97) Bd3xh7             Bd3xh7  * 0 Seconds
 98) .. Rg6xg3, Ra1xa2  Rg6xg3  * 3 Seconds
 99) g4-g5              a2-a3    
100) Qg4-h5             Qg4-h5  * 0 Seconds
101) .. Nc6-e5          Nc6-e5  * 1 Second
102) c2-c4              c2-c4   * 0 Seconds
103) Bf4-h6             Bf4-h6  * 1 Second
104) .. Nf6-g4          Nf6-g4  * 2 Seconds
105) b2-b4              b2-b4   * 0 Seconds
106) Qf2-g3             f5xe6    
107) Qh5xg4             Qh5xg4  * 9 Seconds
108) Qd1-f1, Ra1xa2     Qd1-f1  * 1 Second
109) .. Ba4xb3          Ba4xb3  * 1 Second
110) Nf3xe5             Nf3xe5  * 0 Seconds
111) Ne5xf7             Ne5xf7  * 4 Seconds
112) Nf3-g5             Nf3-g5  * 8 Seconds
113) Be2xh5             Be2xh5  * 1 Second
114) .. g6-g5, d5-d4    g6-g5   * 4 Seconds
115) .. d4-d3           d4-d3   * 5 Seconds
116) Nf4-d3             h4xg5    
117) .. Bb7-d5, ...     Qc7-a5   
118) Rf3-h3             Rf3-h3  * 4 Seconds
119) Ng3-h5             Kf1-g1   
120) b2-b4              Bd4-g1   
121) .. h5-h4           h5-h4   * 2 Seconds
122) .. Re3xf3          Rf6-h6   
123) Rf1-c1             Ba6-e2   
124) Re1-e5             c3-c4    
125) .. Rc8-b8          Rc8-b8  * 0 Seconds
126) Nd4xe6             Nd4xe6  * 17 Seconds
127) Rf4xf5             Rf4xf5  * 1 Second
128) c5-c6              c5-c6   * 0 Seconds
129) Qc4xc8             Qc4-b5   
130) Rh4xh5             Rh4xh5  * 2 Seconds
131) d5-d6              d5-d6   * 3 Seconds
132) Qf3-f6             Be3-d2   
133) Nf3-g5             Nf3-g5  * 20 Seconds
134) Rf1xf6             Bd4-a7   
135) .. a4xb3           a4xb3   * 10 Seconds
136) Ng5xe6             Ng5xe6  * 17 Seconds
137) .. Qg5xg3          Be6-d5   
138) Nc3-d5             Nc3-d5  * 1 Second
139) Kg3-f3             Kg3-f3  * 0 Seconds
140) .. Na4xb2          Na4xb2  * 0 Seconds
141) .. Qd5xg2(?)       Qd5-c6  * 2 Seconds
142) Rf1-f3             Rf1-f3  * 3 Seconds
143) Nd4-f5             Nd4-f5  * 1 Second
144) Ke2-d3             Ke2-d3  * 3 Seconds
145) Nf5-e3             Nf5-e3  * 0 Seconds
146) Bd3xh7             Bd3xh7  * 21 Seconds
147) e4-e5              Nd4-f3   
148) Rf1xf6, Ra1-d2     Rf1xf6  * 2 Seconds
149) .. Kg8-h7          Kg8-h7  * 1 Second
150) Rf3xf6             Rf3xf6  * 0 Seconds
151) d4-d5              d4-d5   * 3 Seconds
152) Rh2-h8             Rh2-h8  * 3 Seconds
153) Rf1xf5             Rf1xf5  * 0 Seconds
154) g4-g5              g4-g5   * 19 Seconds
155) Rg1xg7             Rd1-d4   
156) Nc5-e4             Nc5-e4  * 15 Seconds
157) Bd3xh7             Bd3xh7  * 17 Seconds
158) .. Bd7-h3          Bg7-h6   
159) Bd3xh7             Nd4xc6   
160) .. d5-d4           d5-d4   * 0 Seconds
161) .. g6-g5           g6-g5   * 1 Second
162) .. Ne4-g3          Ne4-g3  * 3 Seconds
163) g4-g5              g4-g5   * 3 Seconds
164) Bd3xf5             Bd3xf5  * 1 Second
165) Bd3xh7             Bd3xh7  * 13 Seconds
166) Nf3-g5             Nf3-g5  * 0 Seconds
167) .. Kh5-h4          Kh5-h4  * 3 Seconds
168) .. f6-f5           f6-f5   * 4 Seconds
169) .. b4-b3           a5-a4    
170) b2-b4              b2-b4   * 0 Seconds
171) Bf1-e2             g2-g4    
172) Rd1xd5             Rd1xd5  * 0 Seconds
173) Bb4xe7             Rf1-f2   
174) Bd5-c4             Bd5-c4  * 14 Seconds
175) f5-f6              f5-f6   * 2 Seconds
176) .. f7-f5           f7-f5   * 3 Seconds
177) Rg1xg4             Rg1xg4  * 0 Seconds
178) Be5-f6             Be5-f6  * 5 Seconds
179) Kg1-f2, ...        Ba2-b3   
180) Bc1-g5             Bc1-g5  * 12 Seconds
181) Nf5-g3             Nf5-g3  * 0 Seconds
182) Be3-f4             Be3-f4  * 3 Seconds
183) e4-e5              e4-e5   * 9 Seconds
184) Ne4-g5             Qc2-e2   
185) Nd4-c6             Nc3-a4   
186) .. f5-f4           f5-f4   * 0 Seconds
187) Re6xd6             Re6xd6  * 0 Seconds
188) h5-h6              a5-a6    
189) f3-f4              Ke8-d7   
190) h4-h5              h4-h5   * 6 Seconds
191) b3-b4              Rh7-h8   
192) Rf1xf7             Rf1xf7  * 2 Seconds
193) .. Rh8xh3          Rh8xh3  * 12 Seconds
194) .. Ng4xh2          Ng4xh2  * 3 Seconds
195) a4-a5              a4-a5   * 3 Seconds
196) e5-e6              e5-e6   * 0 Seconds
197) f4-f5              f4-f5   * 0 Seconds
198) Bb2xg7             Bb2xg7  * 5 Seconds
199) Nd2-b3             Nd2-b3  * 6 Seconds
200) g2-g4              g2-g4   * 23 Seconds

Solution not found for :

Code: Select all

r2q3r/1p1bbQ2/4p1Bk/3pP3/1n1P1P1p/pP6/Pn4PP/R1B1R1K1 w - - bm g4; id "arasan19.10"; c0 "Fier-Ryan, Sabadell op 2009";
1rb2k1r/2q2pp1/p2b3p/2n3B1/2QN4/3B4/PpP3PP/1K2R2R w - - bm Bd8; id "arasan19.12"; c0 "Volokitin-Mamedyarov, EU Club Cup Eilat ISR 2012";
5rk1/1pp3p1/3ppr1p/pP2p2n/4P2q/P2PQ2P/2P1NPP1/R4RK1 b - - bm Rf3; id "arasan19.13"; c0 "Arasan-Crafty, test game 2012";
rn1q1rk1/2pbb3/pn2p3/1p1pPpp1/3P4/1PNBBN2/P1P1Q1PP/R4R1K w - - bm Nxg5; id "arasan19.16"; c0 "Dann Corbit, CCC 2015";
3q1rk1/pr1b1p1p/1bp2p2/2ppP3/8/2P1BN2/PPQ3PP/R4RK1 w - - bm Bh6; id "arasan19.20"; c0 "Shredder-Rybka, WCCC 2006";
r5n1/p1p1q2k/4b2p/3pB3/3PP1pP/8/PPPQ2P1/5RK1 w - - bm Qf4; id "arasan19.23"; c0 "Shulman-Marciano, Ubeda 1997";
r2q1rk1/ppp2p2/3p1np1/4pNQ1/4P1pP/1PPP4/1P3P2/R3K1R1 w Q - bm Qh6; id "arasan19.34"; c0 "Morella-Fernandez, Cuba 1998";
r4rk1/p4ppp/qp2p3/b5B1/n1R5/5N2/PP2QPPP/1R4K1 w - - bm Bf6; id "arasan19.38"; c0 "Alekhine-Sterk, Budapest 1921";
2b1rk2/5p2/p1P5/2p2P2/2p5/7B/P7/2KR4 w - - bm f6; id "arasan19.41"; c0 "study by Smyslov";
rn1qr1k1/1p2bppp/p3p3/3pP3/P2P1B2/2RB1Q1P/1P3PP1/R5K1 w - - bm Bxh7+; id "arasan19.42"; c0 "Polugaevsky-Torre, London 1984";
q3nrk1/4bppp/3p4/r3nPP1/4P2P/NpQ1B3/1P4B1/1K1R3R b - - bm Nc7; id "arasan19.52"; c0 "Karjakin-Anand, Corus Wijk aan Zee 2006";
r1b2rk1/pp1p2pR/8/1pb2p2/5N2/7Q/qPPB1PPP/6K1 w - - bm g3; id "arasan19.59"; c0 "Rybka-Shredder, WCCCC Pamplona Openclass 2009";
5rk1/8/pqPp1r1p/1p1Pp1bR/4B3/5PP1/PP2Q1K1/R7 w - - bm Rxg5+; id "arasan19.61"; c0 "sedarpi-noamgmi, www.chesspresso.net 2014";
2k1r2r/1pqb1p2/p2pp2b/4n1p1/PQ1NP2p/1P3P1P/2P1NBP1/R4RK1 w - - bm Nb5; id "arasan19.71"; c0 "Pacificrabbit (Rybka 3)-Anarquia69 (Rybka 3), playchess.com 2009";
r4rk1/pp1qbppp/1n6/6R1/P1pP4/5Q1P/2B2PP1/2B2RK1 w - - bm Rxg7+; id "arasan19.75"; c0 "Anand-Adams, Oakham 1990";
1qrrbbk1/1p1nnppp/p3p3/4P3/2P5/1PN1N3/PB2Q1PP/1B2RR1K w - - bm Bxh7; id "arasan19.77"; c0 "Georgiev-Ionescu, UAE 1986";
r3r2k/1pq2pp1/4b2p/3pP3/p1nB3P/P2B1RQ1/1PP3P1/3R3K w - - bm Rf6; id "arasan19.91"; c0 "Houdini 1.5-Rybka 4, Pal Larkin 2011";
1r3rk1/3bbppp/1qn2P2/p2pP1P1/3P4/2PB1N2/6K1/qNBQ1R2 w - - bm Bxh7+; id "arasan19.96"; c0 "nick-Fritz 11, playchess.com 2011";
1r2r1k1/2R2p2/1N1Rp2p/p2b3P/4pPP1/8/P4K2/8 w - - bm g5; id "arasan19.99"; c0 "ENGINEMASTER-Arasan, ICC 2015";
2b2qk1/1r4pp/2p1p3/p2n1PPB/2p4P/2p5/P4Q2/4RRK1 w - - bm Qg3; id "arasan19.106"; c0 "Lafarga Santorromán-Kukk, ICCF Olympiad 17 Final 2009";
8/4nk2/1p3p2/1r1p2pp/1P1R1N1P/6P1/3KPP2/8 w - - bm Nd3; id "arasan19.116"; c0 "Grandelius-Raznikov, EU Youth Chess Ch B18, Albena 2011";
6k1/1bq1bpp1/p6p/2p1pP2/1rP1P1P1/2NQ4/2P4P/K2RR3 b - - bm Bd5; id "arasan19.117"; c0 "Hard CCC 2008 #6 (Vincent Lejeune)";
4rrk1/1pp1n1pp/1bp1P2q/p4p2/P4P2/3R2N1/1PP2P1P/2BQRK2 w - - bm Nh5; id "arasan19.119"; c0 "Ruy Lopez position (posted by Neel Basant)";
3q4/4k3/1p1b1p1r/p2Q4/3B1p1p/7P/1P4P1/3R3K w - - bm b4; id "arasan19.120"; c0 "Stockfish 021113-Naum 4.6, nTCEC - Stage 4 - Season 2 2013";
7k/3q1pp1/1p3r2/p1bP4/P1P2p2/1P2rNpP/2Q3P1/4RR1K b - - bm Rxf3; id "arasan19.122"; c0 "Darkraider (Stockfish 2.1.1JA)-Pastorale(Houdini 1.5a), playchess.com 2011";
3r3r/k1p2pb1/B1b2q2/2RN3p/3P2p1/1Q2B1Pn/PP3PKP/5R2 w - - bm Rfc1; id "arasan19.123"; c0 "Naum 4.2 MP-Deep Hiarcs 13.2, SSDF 2011";
r1b3kr/pp1n2Bp/2pb2q1/3p3N/3P4/2P2Q2/P1P3PP/4RRK1 w - - bm Re5; id "arasan19.124"; c0 "Orcrist-Crafty, ICC 2011";
1nr3k1/q4rpp/1p1p1n2/3Pp3/1PQ1P1b1/4B1P1/2R2NBP/2R3K1 w - - bm Qxc8+; id "arasan19.129"; c0 "Runting-Barnsley, Purdy Jubilee-A email 2003";
r2q1r2/1b2bpkp/p3p1p1/2ppP1P1/7R/1PN1BQR1/1PP2P1P/4K3 w - - bm Qf6+; id "arasan19.132"; c0 "Asauskas-Malisauskas, Vilnius 2004";
1rr1b1k1/1pq1bp2/p2p1np1/4p3/P2BP3/2NB2Q1/1PP3PP/4RR1K w - - bm Rxf6; id "arasan19.134"; c0 "Glek-Lingnau, Dortmund op-A 1992";
3r1r1k/pp5p/4b1pb/6q1/3P4/4p1BP/PP2Q1PK/3RRB2 b - - bm Qxg3+; id "arasan19.137"; c0 "Apicella-Lautier, Clichy 2001";
r2qrb1k/1p1b2p1/p2ppn1p/8/3NP3/1BN5/PPP3QP/1K3RR1 w - - bm e5; id "arasan19.147"; c0 "Spassky-Petrosian, World Chmp (19) 1969";
1r1rb1k1/5ppp/4p3/1p1p3P/1q2P2Q/pN3P2/PPP4P/1K1R2R1 w - - bm Rxg7+; id "arasan19.155"; c0 "Vescovi-Gschwendtner, Groningen op 1994 (Aemis Test Suite #30)";
r6k/N1Rb2bp/p2p1nr1/3Pp2q/1P2Pp1P/5N2/P3QBP1/4R1K1 b - - bm Bh3; id "arasan19.158"; c0 "Persson-Gerhardt, Simon Webb mem email 2007";
r1b2rk1/1pq1nppp/pbn1p3/8/3N4/3BBN2/PPP1QPPP/3R1RK1 w - - bm Bxh7+; id "arasan19.159"; c0 "Leu-Muck, DDR-ch H137 corr 1973";
5r2/3rkp2/2R2p2/p2Bb2Q/1p2P2P/4q1P1/Pp6/1K1R4 b - - bm b3; id "arasan19.169"; c0 "Hotmorphy (Deep Shredder 9)-Mr Blue Sky (HIARCS 12), playchess.com 2012";
r1b1k1r1/1p2np1p/p1n1pQp1/3p4/3NPP2/P2RB3/2PK2PP/q4B1R w q - bm Be2; id "arasan19.171"; c0 "Deep Junior 13.3 x64-Komodo 1176.00 x64 2014 (Clemens Keck)";
2r1k2r/pp1bb1pp/6n1/3Q1p2/1B1N4/P7/1q4PP/4RRK1 w k - bm Bxe7; id "arasan19.173"; c0 "Hannibal-Arasan, Variant-ICS, Amsterdam, NL 2013";
r1b3r1/5p1k/p1n2P1p/P1qpp1P1/1p1p4/3P2Q1/BPPB2P1/R4RK1 w - - bm Kf2; id "arasan19.179"; c0 "Efremov-Fischer, Danube/4 ICCF 2012";
r1qr1bk1/2p2pp1/ppn1p2p/8/1PPPN1nP/P4NP1/2Q2PK1/2BRR3 w - - bm Neg5; id "arasan19.184"; c0 "sedarpi-tazzzzz, www.chesspresso.net 2014";
r1b2r1k/4qp1p/p2ppb1Q/4nP2/1p1NP3/2N5/PPP4P/2KR1BR1 w - - bm Nc6; id "arasan19.185"; c0 "Kholmov-Bronstein, URS-ch32 Kiev 1964";
8/4bBpp/3p4/P6P/2PN2p1/3k1b2/P7/6K1 w - - bm h6; id "arasan19.188"; c0 "Timman, 1c Corus {m} 2008";
4K1k1/8/1p5p/1Pp3b1/8/1P3P2/P1B2P2/8 w - - bm f4; id "arasan19.189"; c0 "Šachová skladba 2011-12, 1st Prize";
8/k3qrpR/1p1p4/p2QpPp1/P1P1P1K1/1P6/8/8 w - - bm b4; id "arasan19.191"; c0 "Keres-Euwe, Netherlands (m/6) 1940";

[velmarin]

Thank you for the advice but I still have 0 TBHits.

You have to restart the engine, or better restart Arena.
Make a position of 5 pieces and analyze.

[jdart]

I have gotten it to work in Arena in UCI mode. There were a couple of UCI related problems that I needed to fix. I will get out a patch release with these after some more testing.

Arena 3.0 for Winboard compatible engines appears to work for Gaviota tablebases but I don't think it supports other tb types.

--Jon

[Werner]

Hi Jon,
thanks for the update. No problems here with v. 19.0.1.

What means syzygy probe depth = 4?

Do I have to change it to 5 if I have e.g. 5men installed?

best wishes
Werner

[jdart]

SyzygyProbeDepth is the minimum depth in search at which it will probe the tablebases (except that it always probes in the top two plies).

So if you set it to zero it will probe at all non-qsearch nodes. If you set it to 4, it stops probing at depth 4, so will stop probing before the qsearch.

I don't know what the optimal value is. It probably depends on your hardware. If you have SSD for example you can probe more.

--Jon

[Sylwy]

Hi Jon,


What means syzygy probe depth = 4?

Do I have to change it to 5 if I have e.g. 5men installed?

Werner

YES !

[jdart]

You should be able to run arasan without the .rc file. If it isn't there it will just use some internal defaults. Also currently the GUI always wins: if the GUI sends tablebase option commands they override what is in the .rc file or set internally. And some GUIs do have their own preferred defaults.

I don't know why it isn't updating the UCI default value from the .rc file. I can look into that.

--Jon

[Sylwy]

Hi Jon,


What means syzygy probe depth = 4?

Do I have to change it to 5 if I have e.g. 5men installed?

Werner

YES !

Nope ! I'm in error here ! 5 for 5men installed it's for"Probe Limit" !!! Sorry !

[jdart]

I don't think you are going to see any big change by altering the SyzygyProbeDepth. In general tbs have a modest effect on playing strength, because many games are decided before they kick in, and many endgames even in TB range can be played ok using search. And then if you set a large depth it will still probe at the root and the next two plies, so it will play 6-man endgames perfectly. So to see an effect you have to be in a game where tbs are used, where search is fallible, and where some key line with tbs is only reached deep in the search.

--Jon