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The **CSVN 51st Programmers Tournament** took place on April 29 and 30, 2017, [|Denksportcentrum] [|Leiden]. Eight participants played a round robin at 45+15.

=Final Standing=
 * ~ # ||~ ||~ Program ||~ CC ||~ Hi ||~ Ko ||~ Ar ||~ TB ||~ TK ||~ Ne ||~ Sp ||~ Em ||~ ||~ P7 ||
 * ~ 1. ||~ ||< Hiarcs ||~ GB ||= **x** ||= w1 ||= b1 ||= b½ ||= b1 ||= b1 ||= w1 ||= w1 ||~ ||~ 6½ ||
 * ~ 2. ||~ ||< Komodo ||~ US ||= b0 ||= **x** ||= w1 ||= w1 ||= w1 ||= w1 ||= b1 ||= b1 ||~ ||~ 6 ||
 * ~ 3. ||~ ||< Arminius ||~ DE ||= w0 ||= b0 ||= **x** ||= b1 ||= b1 ||= w1 ||= w1 ||= w1 ||~ ||~ 5 ||
 * ~ 4. ||~ ||< The Baron ||~ NL ||= w½ ||= b0 ||= w0 ||= **x** ||= w1 ||= b1 ||= b½ ||= b1 ||~ ||~ 4 ||
 * ~ 5. ||~ ||< The King ||~ NL ||= w0 ||= b0 ||= w0 ||= b0 ||= **x** ||= w1 ||= w1 ||= b1 ||~ ||~ 3 ||
 * ~ 6. ||~ ||< Nemeton ||~ NL ||= w0 ||= b0 ||= b0 ||= w0 ||= b0 ||= **x** ||= w1 ||= b1 ||~ ||~ 2 ||
 * ~ 7. ||~ ||< Spartacus ||~ NL ||= b0 ||= w0 ||= b0 ||= w½ ||= b0 ||= b0 ||= **x** ||= w½ ||~ ||~ 1 ||
 * ~ 8. ||~ ||< Embla ||~ NL ||= b0 ||= w0 ||= b0 ||= w0 ||= w0 ||= w0 ||= b½ ||= **x** ||~ ||~ ½ ||
 * [|CC Country Codes]

=Participants= Mark Lefler || Hans van der Zijden || Intel [|i7 6700K] @ 4.2 GHz ||> 4 ||
 * ~ Program ||~ CC ||~ Authors ||~ Operators ||~ Hardware ||~ Cores used ||
 * Arminius ||~ DE || Volker Annuss || || Intel [|i7 5820K] @ 3.3GHz ||> 6 ||
 * Embla ||~ NL || Folkert van Heusden || || Intel [|i7 3930K] ||> 16 ||
 * Hiarcs ||~ GB || Mark Uniacke || Harvey Williamson || Intel [|Xeon E5-2697] @ 2.7 GHz ||> 27 ||
 * Komodo ||~ US || Don Dailey, Larry Kaufman,
 * Nemeton ||~ NL || Stan Arts || || Intel [|i7 4770k] @ 3.5 GHz ||> 4 ||
 * Spartacus ||~ NL || Harm Geert Muller || || Intel i7 @ 3.4 GHz ||> 1 ||
 * The Baron ||~ NL || Richard Pijl || || Intel [|i7 5820K] @ 3.3GHz ||> 16 ||
 * The King ||~ NL || Johan de Koning || || AMD [|FX8350K], 5 threads/core ||> 4 ||
 * [|CC Country Codes]

=Photos=
 * [[image:PT51Winners.jpg link="http://www.csvn.nl/index.php/historie/programmeurstoernooien/762-ranking-51st-programmer-tournament"]] ||
 * PT 51 winners: Volker Annuss, Harvey Williamson and Hans van der Zijden ||

=Photos & Games= Final Round 7 - all four games were finals on the odd places 1, 3, 5 and 7.

Hiarcs - Komodo
 code [Event "51st Programmer Tournament"] [Site "Leiden"] [Date "2017.04.30"] [Round "7"] [White "Hiarcs"] [Black "Komodo"] [Result "1-0"]
 * [[image:PT51HiarcsWins.JPG]] ||
 * Hiarcs - Komodo, Hans van der Zijden is about to resign, Hiarcs operated by Harvey Williamson wins PT 51 ||

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Bg5 e6 7.f4 Be7 8.Qf3 Qc7 9.O-O-O Nbd7 10.g4 b5 11.Bxf6 Nxf6 12.g5 Nd7 13.f5 O-O 14.Rg1 Ne5 15.Qh5 b4 16.Nce2 Bb7 17.f6 Bd8 18.fxg7 Re8 19.Ng3 Ng6 20.Kb1 Qc5 21.h4 Rc8 22.Be2 Rc7 23.Ka1 Qe5 24.Qg4 Qf4 25.Nh5 Qxg4 26.Rxg4 Ne5 27.Rf4 Ng6 28.Rf2 Bxe4 29.Bxa6 Be7 30.Nf6+ Bxf6 31.gxf6 d5 32.Kb1 Ne5 33.Bb5 Ra8 34.Rg1 h6 35.Rg3 Rca7 36.b3 Rxa2 37.Ba4 Ra3 38.Rg1 Ra6 39.h5 Rb6 40.Rff1 Rb7 41.Nb5 Rxb5 42.Bxb5 Rxb3+ 43.Kc1 Rc3 44.Kb2 Rc8 45.Rg3 Ra8 46.Rb3 Rb8 47.Bd3 Bf3 48.Re1 Nd7 49.Bh7+ Kxh7 50.Rxf3 Ra8 51.Ref1 e5 52.c3 e4 53.Rf5 bxc3+ 54.Kxc3 e3 55.Re1 Re8 56.Kd3 d4 57.Ra1 Kg8 58.Ra2 Kh7 59.Ra1 Nb6 60.Re1 Kg8 61.Kxd4 Re6 62.Re5 Nd7 63.Rxe6 fxe6 64.Rxe3 Nxf6 65.Rh3 Ne8 66.Ke5 Nxg7 67.Kf6 Kf8 68.Rh2 1-0 code

The Baron - Arminius
which luckily (for him) yields in too risky play by Richard Pijl's brainchild || code [Event "51st Programmer Tournament"] [Site "Leiden"] [Date "2017.04.30"] [Round "7"] [White "The Baron"] [Black "Arminius"] [Result "0-1"]
 * [[image:PT51TheBaronArminis.JPG]] ||
 * The Baron - Arminius, Volker Annuss wonders about Arminius' pawn structure on the queenside,

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 O-O 5.Be2 Bxc3+ 6.bxc3 d6 7.Nf3 b6 8.O-O Bb7 9.Nd2 c5 10.f3 Nc6 11.Nb3 a5 12.a4 Ne7 13.e4 Nd7 14.Rb1 Ng6 15.Be3 Ra7 16.Re1 Qe7 17.g3 Bc6 18.Nd2 Rb8 19.Qc2 e5 20.d5 Bb7 21.Rb3 h6 22.Nb1 Bc8 23.Na3 Nf6 24.Reb1 Rab7 25.R1b2 Bh3 26.Qb1 Qd8 27.Bf1 Bxf1 28.Kxf1 Nd7 29.Kg2 Ra8 30.h4 Ngf8 31.Bf2 Ra6 32.Nc2 Nf6 33.Ne3 Ng6 34.Nf5 Qb8 35.Rb5 Nh5 36.R2b3 Qc7 37.Be3 Qb8 38.Rb2 Qd8 39.R2b3 Qb8 40.Rb2 Qd8 41.Kh3 Rb8 42.Kg2 Rb7 43.Bf2 Qb8 44.R2b3 Qc7 45.Qd1 Qd8 46.Bg1 Nf6 47.Qb1 Rb8 48.Nxd6 Qxd6 49.Bxc5 Qc7 50.Rxb6 Raxb6 51.Rxb6 Rc8 52.Rc6 Qd7 53.Qb6 Nh5 54.Be3 Kh7 55.c5 Rxc6 56.Qxc6 Qxc6 57.dxc6 Ne7 58.c7 Nf6 59.c6 Nc8 60.c4 Ne8 61.Bd2 Nxc7 62.Bxa5 Ne6 63.Kf2 Kg6 64.Bc3 f6 65.Ke3 Nd8 66.c5 Ne6 67.f4 exf4+ 68.gxf4 Nxc5 69.f5+ Kh5 70.Bb4 Na6 71.Bf8 g6 72.e5 gxf5 73.Kf4 Kg6 74.h5+ Kxh5 75.Kxf5 fxe5 76.Kxe5 Kg6 77.Ke6 h5 78.Kd7 Nb6+ 79.Ke6 Nc7+ 80.Kd6 Nca8 81.Ke5 Nxa4 82.Be7 Nc3 83.Bf6 Nb5 84.Bd8 Nac7 85.Bh4 Na7 86.Bf2 Nxc6+ 87.Kd6 Nb4 88.Kxc7 Kg5 89.Bg3 Kg4 90.Bd6 Nc2 91.Be7 Nd4 92.Kd7 Nf3 93.Bd6 h4 94.Bc7 Nd2 95.Ba5 Ne4 96.Bc7 h3 97.Bh2 Kf3 98.Ke6 Kf2 99.Kf5 Kf3 100.Bg1 Kg2 101.Bd4 Ng3+ 102.Kf6 Kf3 103.Bg1 Nh5+ 104.Kg5 Kg2 105.Bd4 h2 106.Kg6 h1=Q 107.Kf7 0-1 code

The King - Nemeton
code [Event "51st Programmer Tournament"] [Site "Leiden"] [Date "2017.04.30"] [Round "7"] [White "The King"] [Black "Nemeton"] [Result "1-0"]
 * [[image:PT51TheKingNemeton.JPG]] ||
 * Johan de Koning and Stan Arts in The King - Nemeton, which has a terrific 3D Graphics Board ||

1.Nf3 Nf6 2.c4 Nc6 3.d4 e6 4.g3 Bb4+ 5.Bd2 Qe7 6.Nc3 d5 7.cxd5 exd5 8.Bg2 O-O 9.O-O Re8 10.Bg5 Bxc3 11.bxc3 h6 12.Bxf6 Qxf6 13.Re1 Rb8 14.Nd2 Qg5 15.e4 Bg4 16.f3 Bh5 17.f4 Qg6 18.Qb3 dxe4 19.Nxe4 Bg4 20.Qc4 Bh3 21.Bxh3 Rxe4 22.Bg2 Rxe1+ 23.Rxe1 Qd6 24.Qa4 a6 25.Rb1 Qg6 26.Rb2 Na7 27.Bxb7 Qd3 28.Kf2 Qxc3 29.Rc2 Qa1 30.Bxa6 Qh1 31.Bf1 Nb5 32.Qb3 Rb7 33.Bg2 Qd1 34.Bxb7 Nxd4 35.Bf3 Qxc2+ 36.Qxc2 Nxc2 37.a4 Kf8 38.a5 Nd4 39.Ke3 Nb5 40.Ke4 Na7 41.Kd4 Ke7 42.Kc5 Kf6 43.Bd5 h5 44.h4 Ke7 45.Bf3 g6 46.f5 Kf6 47.fxg6 fxg6 48.Kd5 Kf5 49.a6 Kf6 50.Be4 Kf7 51.Ke5 Nb5 52.Bf3 Na7 53.Bd5+ Ke7 54.Be4 Kf7 55.Bf3 Ke7 56.Kd4 Nb5+ 57.Kc5 Na7 58.g4 hxg4 59.Bxg4 Kf8 60.Kd4 Nc6+ 61.Kc4 Kf7 62.Bf3 Na7 63.Be4 Kf6 64.Kd4 Nb5+ 65.Kd3 Na7 66.Ke3 Nb5 67.Kd2 Na7 68.Bd3 Nc6 69.Ke2 Nd4+ 70.Ke3 Nc6 71.Bc2 Na7 72.Bb1 Nb5 73.Bd3 Na7 74.Bc2 Nb5 75.Kd3 Kg7 76.Kc4 Na7 77.Kc5 Kf7 78.Bd3 Kg7 79.Kd5 Kf6 80.Ke4 Nc8 81.Kd4 Na7 82.Bc2 Nc6+ 83.Ke4 Na7 84.Kf4 Nc6 85.Be4 Na7 86.Bf3 Nb5 87.Bd5 Na7 88.Be4 Nc8 89.Ba8 Nd6 90.Ke3 Nb5 91.Ke4 Na7 92.Bd5 Nc8 93.Kd3 g5 94.h5 Na7 95.Bf3 Nb5 96.Kc4 Na7 97.Kd4 Kg7 98.Ke5 Kh6 99.Kd5 Kh7 100.Bd1 Kg7 101.Ke6 Nc6 102.Bf3 Na7 103.Be4 Kh6 104.Kd7 g4 105.Kxc7 g3 106.Kb7 Nb5 107.Bf3 Nd6+ 108.Kc7 Nb5+ 109.Kb6 Nd6 110.Kc5 Nc8 111.Kd4 Kg5 112.Ke3 Na7 113.Ke2 Nb5 114.Kf1 Na7 115.Kg2 Nc8 116.Kxg3 Na7 117.Kf2 Nb5 118.Ke3 Kf5 119.Kd3 Na7 120.Kc4 Kg5 121.Kc5 Kf5 122.Bb7 Ke5 123.Kb6 Ke6 1-0 code

Spartacus - Embla
left to demonstate his newest 16x16 Shogi variant - in the background tournament director Jan Krabbenbos || code [Event "PT51st Programmer Tournament"] [Site "Leiden"] [Date "2017.04.30"] [Round "7"] [White "Spartacus"] [Black "Embla"] [Result "1/2-1/2"]
 * [[image:PT51SpatacusEmbla.JPG]] ||
 * Spartacus - Embla with traffic light indicator, Folkert van Heusden and Harm Geert Muller, who has some cores

1.g3 d5 2.Nf3 Bg4 3.Bg2 Nf6 4.O-O Nc6 5.d4 Bxf3 6.exf3 e6 7.Be3 Ne7 8.Qd3 Qd6 9.Nc3 Nf5 10.Bg5 h6 11.Bxf6 gxf6 12.Qb5+ Qc6 13.Qxc6+ bxc6 14.Rfd1 Rg8 15.f4 Rb8 16.Rab1 Bd6 17.Kf1 Kf8 18.Ne2 Kg7 19.c3 Rb6 20.Nc1 Be7 21.Nd3 Nd6 22.Re1 f5 23.Re2 Bf6 24.Rc1 Kh7 25.Ne5 Bxe5 26.fxe5 Nc4 27.b3 Na5 28.f4 Rd8 29.Kg1 h5 30.h3 Rg8 31.Re3 a6 32.Kh2 Rd8 33.Rc2 Kg6 34.Bf1 Kg7 35.Be2 Kh6 36.Rd3 Rdb8 37.g4 fxg4 38.hxg4 hxg4 39.Bxg4 Kg7 40.f5 exf5 41.Bxf5 Rh8+ 42.Kg3 Kf8 43.Rf3 Nb7 44.c4 dxc4 45.Rxc4 Rg8+ 46.Kf2 Rh8 47.Ke3 Ke8 48.Rc2 Rh4 49.Rff2 Nd8 50.Rh2 Rxh2 51.Rxh2 Kf8 52.Kd3 Kg8 53.Kc4 a5 54.a3 Rb5 55.Rh3 Kg7 56.Rh7+ Kg8 57.Rh1 Kg7 58.Rh3 Rb7 59.Rh7+ Kg8 60.Rh6 Kg7 61.Rh4 Rb6 62.Rh7+ Kg8 63.Rh1 Kf8 64.Rh8+ Ke7 65.Bg4 Rb5 66.Rh6 Rb8 67.Rh7 Kf8 68.Bf5 1/2-1/2 code =Forum Posts= > [|Re: 51st CSVN programmers tournament Leiden 2017] by Mark Lefler, Hiarcs Forum, May 14, 2017
 * [|51st CSVN programmers tournament Leiden 2017] by Harvey Williamson, Hiarcs Forum, April 29, 2017
 * [|51st CSVN programmers tournament at Leiden - Hiarcs wins] by Harvey Williamson, CCC, April 30, 2017

=External Links= > [|Round 1 Programmers tournament] > [|Round 2 51st Programmers Tournament] > [|Round 3 51st Programmer Tournament] > [|Round 4 51st Programmer Tournament] > [|Round 5 51st Programmer Tournament] > [|Round 6 51st Programmer Tournament] > [|Round 7 51st Programmer Tournament]
 * [|CSVN Programmer Tournament 51], CSVN sites
 * [|Spring Activities 2017, Saturday April 29 and Sunday April 30]
 * [|51th PT 2017 Leiden: List of participants]

=References= =What links here?= include component="backlinks" page="PT 51" limit="40"
 * Up one level**