On-line engine blitz tourney March

[hgm]

The monthly on-line engine blitz tourney for March will take place on:

Saturday March 16, 4pm Boston time (21:00 Amsterdam time)

(This assumes daylight saving time in Boston!) To connect:

winboard -zp -ics -icshost winboard.nl -icshelper timeseal -fcp ENGINE.exe -fd ENGINEFOLDER -autoKibitz

(for UCI engines, add -fUCI)

[Daniel Anulliero]

Hi hg
I would like To enter my new engine "BeLL" in your tournament . Can you send me an account for him please?
Thank you very much !
Dany

[Daniel Anulliero]

Hi hg
I would like To enter my new engine "BeLL" in your tournament . Can you send me an account for him please?
Thank you very much !
Dany

Many thanks for the account hg

[D Sceviour]

You have to love it

[pgn][Round "-"] [White "Schooner"] [Black "LeelaRB"] [Result "1-0"] [WhiteElo "1873"] [BlackElo "2115"] [TimeControl "300+1"] 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be3 e6 7. f3 b5 8. Qd2 Nbd7 9. g4 b4 10. Nce2 h6 11. O-O-O Qc7 12. h4 d5 13. Bf4 Qa5 14. Kb1 dxe4 15. Bg2 Bb7 16. g5 exf3 17. Bxf3 Bxf3 18. gxf6 Bd5 19. Nb3 Qb6 20. fxg7 Bxg7 21. Rhg1 Be5 22. c4 Bxf4 23. Nxf4 Bc6 24. c5 Qc7 25. Qxb4 a5 26. Qc3 O-O-O 27. Nd3 Rhg8 28. Rgf1 Be4 29. Rxf7 Qc6 30. Nxa5 Qb5 31. a4 Qxa4 32. b3 Qb5 33. Kc1 Bxd3 34. Rxd3 Ne5 35. Rxd8+ Rxd8 36. Qxe5 Qxa5 37. Qxe6+ Kb8 38. Qe3 h5 39. Kb1 Rd1+ 40. Kc2 Rd8 41. Rh7 Qa2+ 42. Kc3 Qa1+ 43. Kc4 Qa6+ 44. Kb4 Ka8 45. Qe4+ Kb8 46. Qc4 Qc6 47. Qb5+ Ka8 48. Qxc6+ Kb8 49. Qb7# {LeelaRB checkmated} 1-0 [/pgn]

[hgm]

Code: Select all

:Tourney Players: Round 9 of 9 
:
:     Name              Rating Score Perfrm Upset  Results 
:     ----------------- ------ ----- ------ ------ ------- 
:  1 +NightmareX        [1982]  12.0  [2150] [  57] +20w +11w =06b =05w =07b +03w =04b +02w +08b 
:  2 +WaspX             [1982]  11.0  [2011] [  57] +09w +12w =07b =06w +05b =04w =08b -01b +13w 
:  3 +Laser             [1925]  11.0  [2037] [ 132] +16w =06b =04w =08b +11w -01b =05w +12w +07b 
:  4 +LeelaRB           [2027]  10.5  [1958] [   0] =15w =08w =03b +11w +14b =02b =01w =07w =05b 
:  5 +Schooner          [1883]  10.5  [1964] [ 256] +21w =07b +15w =01b -02w +13w =03b =06b =04w 
:  6 +nemorino          [2053]  10.0  [1895] [   0] +08b =03w =01w =02b +15w =07w =13b =05w -09b 
:  7 +rpiStockfish      [1942]  10.0  [1925] [ 137] +13b =05w =02w =10b =01w =06b +11w =04b -03w 
:  8 +Baron             [1841]  10.0  [1921] [ 247] -06w =04b +12b =03w +10w +15b =02w =09b -01w
:  9 -tomitankChess     [1676]  10.0  [1737] [ 569] -02b -10w -18b +23w +22w =16b +20b =08w +06w 
: 10 -Winter            [1549]  10.0  [1809] [ 665] -12b +09b +13w =07w -08b =11b -15w +16b +17w 
: 11 +WaDuuttie         [1917]  9.5  [1775] [   0] +17w -01b +16w -04b -03b =10w -07b +18w +15w 
: 12 -Goldbar           [1883]  9.5  [1729] [   0] +10w -02b -08w -15b =18b +14w +17w -03b +20b 
: 13 -Topple            [1612]  9.5  [1766] [ 425] -07w +21b -10b +18w +17w -05b =06w +15b -02b 
: 14 -Jumbo             [1541]  9.0  [1682] [ 314] =18w +22b +20b +16w -04w -12b -19w =21w +27b 
: 15 -Marvin            [1817]  8.5  [1750] [ 171] =04b +20w -05b +12w -06b -08w +10b -13w -11b 
: 16 +atomBaron         [1609]  8.5  [1548] [  33] -03b +17w -11b -14b +19w =09w =18b -10w =21b
: 17 +Nemeton           [1584]  8.5  [1566] [ 202] -11b -16b =21w +20w -13b +18w -12b +19w -10b 
: 18 +Floyd             [1541]  8.5  [1640] [ 340] =14b +25w +09w -13b =12w -17b =16w -11b +26w 
: 19 +Spartacus         [1461]  8.5  [1617] [ 443] -26w +24b =22w +21b -16b +25w +14b -17b +28w 
: 20 -Singularity       [1786]  8.0  [1553] [   0] -01b -15b -14w -17b +21w +22b -09w +28b -12w 
: 21 +rpiMinkoChess     [1543]  8.0  [1495] [  53] -05b -13w =17b -19w -20b +24w +23w =14b =16w 
: 22 +rpiFruit          [1479]  8.0  [1470] [  40] +25b -14w =19b +24w -09b -20w -28w +30b +32b 
: 23 +Minic             [1401]  8.0  [1538] [ 151] +27b +26b +25w -09b -28w +29w -21b +33b +30w 
: 24 +KingSlayer        [1386]  8.0  [1422] [ 168] +29b -19w +26b -22b +31w -21b +34w +25b +33w
: 25 +Bliep             [1519]  7.5  [1303] [   0] -22w -18b -23b +27w +26b -19b +29w -24w +34b 
: 26 +Joker             [1421]  7.5  [1338] [  40] +19b -23w -24w +30b -25w +32b +33w +31w -18b 
: 27 -Isa               [1414]  7.5  [1320] [   0] -23w +29w -28b -25b +32w +31b +30b +34w -14w 
: 28 +FrankWalter       [   0]  7.0  [1504] [8291] +34b +31b +27w +32w +23b +33w +22b -20w -19b 
: 29 +microMax          [1218]  5.5  [1163] [   0] -24w -27b =30w +33b +34w -23b -25b =32w +31b 
: 30 +rpiEmbla          [1154]  5.0  [1170] [  32] =31w +32w =29b -26w +33b +34b -27w -22w -23b 
: 31 -BeLL              [1129]  4.5  [1148] [  12] =30b -28w +33w +34b -24b -27w +32w -26b -29w 
: 32 +rpiBikjump        [1036]  3.0  [1080] [  91] +33w -30b +34w -28b -27b -26w -31b =29b -22w
: 33 -Skipper           [1023]  1.5  [ 936] [   0] -32b +34w -31b -29w -30w -28b -26b -23w -24b 
: 34 +Roller            [ 809]  0.0  [ 883] [   0] -28w -33b -32b -31w -29b -30w -24b -27b -25w 
:
:     Average Rating    1580.1 
:

[Henk]

Something wrong with the score. Skipper only won one game but gets 1.5 points

[Joost Buijs]

Henk, this probably has to do with the Mc.Mahon system.

Nightmare was very lucky this time, two of its opponents were so friendly to let their clock run out of time in a drawn endgame, so it should probably have had 1 point less. Both Texel and Arasan and were missing and that also increases ones winning chances, especially Texel with his (180 core?) cluster is a force to reckon with. I expected LeelaRB to win the tournament, but somehow it didn't live up to expectations.

I didn't change much in the engine, I only made some changes (improvements?) in the TT replacement scheme and the SMP search. A few days before the previous tournament I found out that I have been running with a bugged version for several months, it is never wise to make changes without testing them thoroughly.

Some time ago I changed the base index calculation for the TT from (key % nclusters) to (key & nclusters - 1), this because it is faster and nclusters is a power of 2, at least it should have been a power of 2, but due to an error in the calculation it wasn't, and that messed up the engine completely.

[Daniel Anulliero]

Something wrong with the score. Skipper only won one game but gets 1.5 points

Hgm use the mac mahon System since long time
Wake up Henk

[Modern Times]

I expected LeelaRB to win the tournament, but somehow it didn't live up to expectations.

Indeed it did not do that well. In the absence of Arasan and Texel I thought it could fight for the win, but at the end of the day the £100 GTX 1050 was probably not enough. A £700 - £800 RTX 2080 would have been a different story, but I don't have that kind of cash to be throwing at a PC just so it can play Lc0 at a high level. It is also a horribly flawed engine in many ways, as we saw in one game when it threw away a +40 advantage to end up drawing. Very frustrating engine also, for example where instead of making a pawn move to promote, it just aimlessly decides to shuffle pieces around for a while instead. Or else it decides to throw away pieces because it doesn't need them to secure the victory. Until it solves all those issues, it is not a top engine in my book.

[brianr]

Just wondering if Leela was playing the 6 piece syzygy tablebases, which improve her endgame play far more than traditional a/b engines?
I assume there was no book.
Thanks.