(1) 2nd Hon. Mention - Ceskoslovensky Sach 1999 Harold van der Heijden, 1999 1.a6 bxa6 2.bxa6 Kd8 3.Kc6!! [ Thematic try: 3.a7? Rf5+ 4.Kc6 Ra5 5.Nc7 Rxa7! reciprocal zugzwang! (see main line after 5.Sc7) 6.Kb6 Rxc7 7.dxc7+ Kc8 8.Kc6 stalemate] 3...Rf7 4.a7! [ 4.Nc7? Kc8! 5.Kb6 ( 5.a7 Rxc7+! 6.dxc7 stalemate; 5.Ne6 Rh7! This is a second reciprocal zugzwang with BTM: 6...Rf7 7.Sc5! Kb8 8.d7 Rf8 9.Se6! attacks the Rook 9...Rh8 10.Kb6!; or 8...Rf6+ 9.Se6!! Rxe6+ 10.Kd5 wins. 6.Nc5 Kb8 7.d7 Rh8 8.Ne6 Ka7! 9.Kb5 Rh5+! 10.Kc6 Rh8 positional draw) 5...Rf6! 6.a7 Rxd6+ 7.Kb5 Rd5+! 8.Kb4 Rd4+ 9.Kb3 Rd3+ 10.Kb2 Rd2+ 11.Kb1 Rd1+ 12.Kb2 Rd2+ 13.Kb3 Rd3+ 14.Kb4 Rd4+ 15.Kb5 Rd5+ positional draw] 4...Rxa7 5.Nc7! reciprocal zugzwang 5...Ra1 6.Ne6+ Ke8 7.d7+ 1-0

(2) 3rd Commendation - "64" 2000 Harold van der Heijden, 2000 1.b3! [ Festina Lente! (hasten slowly). Thematic try: 1.b4? Ng4! reciprocal zugzwang 2.b5 Nf6! another reciprocal zugzwang, see main line after 3.b5! 3.b6 ( 3.Kc4 Kd2 4.d5 Ke3 5.Kc5 Ke4! draws, e.g. 6.d6 Nd7+ 7.Kc6 Ne5+ 8.Kc7 Kd5 9.d7 Nxd7 10.Kxd7 Kc5 ) 3...Nd5+ ] 1...Ng4 2.b4! Nf6 3.b5! Kd1 4.Kd3! Ke1 [ second main line: 4...Nd7 5.d5! Kc1 6.Kc3! Kb1 7.Kb3! Ka1 8.d6! Kb1 9.Kc4 Kc2 10.Kd5 ] 5.b6! Kf2 6.b7 Nd7 7.Ke4! Nb8 8.Ke5 Ke3 9.d5 Na6 10.Kf5!! [ 10.d6? Nc5! 11.b8Q ( 11.b8N Kd3 12.Kd5 Ne4 13.d7 Nf6+ ) 11...Nd7+ ] 10...Kd4 11.d6 Nb8 12.Ke6 1-0

(3) 4th Prize - Vandiest-80 JT Harold van der Heijden, 2000 1.g8Q dxe2 2.Qg1+! [ Thematic try: 2.Qxa2? Kf2! and this is the first reciprocal zugzwang position with WTM: 3.Kc3 ( 3.Qb2?? Kf1! and Black wins!; 3.Qc2 f3! 4.Kc3 Kf1! and Qc2-c4 is not possible.) 3...f3 and now we have the second reciprocal zugzwang position with WTM. 4.Kd3 ( 4.Qc2 Kf1 Qc4 not possible; 4.Kd4 Kf1 5.Qc4 Now this move is possible! 5...Kg2! but now Qg4+ is prevented.; 4.Qa7+ Kf1! 5.Qa6 Kg2! and White is not able to check on g4, e.g. 6.Qg6+ Kf1 7.Qd3 Kg2 8.Qe4 ( 8.Kd2 e1Q+! 9.Kxe1 f2+ ) 8...e1Q+! 9.Qxe1 f2 ) 4...Kf1! ] 2...Kd2 3.Qd4+ Ke1 4.Qa1+ Kf2 5.Qxa2! 1st reciprocal zugzwang 5...f3 6.Kc3! 2nd reciprocal zugzwang 6...Kf1 7.Qc4! Kf2 8.Qh4+ 1-0

(4) 3rd Commendation - Chess Clinic ty Harold van der Heijden, 2000 1.h7 Ra2+ 2.Kb3 Rh2 3.Kxa4 Kg2 4.Kb4!! [ Thematic try: 4.Kb5? Kf3 5.a4 Ke4 6.a5 Kd5! reciprocal zugzwang with WTM. Compare this with the main line after 9.Kb5. Now White is lost. 7.a6 ( 7.Kb6 fails to e.g. 7...Kc4 8.a6 Rh6+ 9.Kb7 Kb5 10.a7 Rxh7+ 11.Kb8 Kb6 12.a8N+ Kc6 ) 7...Rb2+ Now wK cannot play to a6, so 8.Ka5 Kc5 9.Ka4 Rh2 ] 4...Kf3 5.a4 Ke4 6.a5 Kd5 7.Kb5! reciprocal zugwang with BTM! 7...Rb2+ [ 7...Rh3 8.a6 Rb3+ 9.Ka4 ; 7...Rxh7 8.a6 ; 7...Rh1 at first sight, this move doesn't change much, but: 8.a6 Rb1+ 9.Ka4 Kc4?? 10.h8Q protects a1.; 7...Rh6 8.a6 Rxh7 9.Kb6 Kc4 10.a7 ] 8.Ka6! Rh2 9.Kb5! Rb2+ 10.Ka6 Rb8 11.Ka7 Rh8 12.Kb6! Kd6 13.a6 Rb8+ 14.Ka7 Kc7 15.h8Q Rxh8 stalemate. 1/2-1/2

(5) 1st Prize - Israel-50 JT Emilian Dobrescu/Harold van der Heijden, 1998 1.Nec3+ Ka1 2.Nxa4 Qa3+ 3.Nab2 Qc5+ 4.Nc3! [ Thematic try: 4.Nc4? Qxc4+ 5.Nc3 Qa6! 6.Rxa7 Qxa7 ] 4...Qg1+ 5.Nbd1 Qc5 6.Rxa7+! Qxa7 7.Na4! Qc7+ 8.Ndc3 Qh2!! 9.Nb2 Qg1+ 10.Ncd1 Qc5+ 11.Nc4!! Qxc4+ 12.Nc3 Qa6 13.Nb5!! Qf6 14.Qa8+ Ba2 15.Qxa2+ [ 15.Nc3? Qa6!! 16.Qe4 Qa3+! 17.Kd1 Bb3+ 18.Ke1 Qc1+ 19.Kf2 Qxd2+ 20.Kg1 Qc1+ 21.Kf2 Qd2+ 22.Kg3 Qxc3 23.e8Q d2+ ] 15...Kxa2 16.Nc3+ Ka1! 17.e8Q Qc6! 18.Qe4! 1-0

(6) special prize - Diagrammes 2000 Harold van der Heijden/John Beasley, 2000 1.Bb2! Nd2 2.c4!! Nxc4+ 3.Kb4! [ 3.Kb3? Nxb2 ] 3...Nxb2 4.Kb3! Kc1! 5.a3!! Festina Lente! [ 5.a4? Nxa4 6.Kxa4 Kxc2 ] 5...Nd1 6.a4! Ne3 7.a5! Nd5 8.a6! Nc7 9.a7 Nb5 10.a8Q or a8R; Excelsior! 1-0

(7) 1st/2nd Prize - Hungarian Chess Fed. 2000 Harold van der Heijden, 2000 1.h8Q Rh2+ 2.Kg5! [ 2.Kg4? Rxh8 3.Rxh8 Rc4+ and a trick as in the main line doesn't work now 4.Nd4 e.g. 4...Rxd4+ 5.e4 Rxe4+ 6.Kf5 Rxb4 ] 2...Rxh8 3.Rxh8 Rc5+ 4.Ne5!! Rxe5+ 5.Kf4! Rc5 6.Rh1+ Rc1 7.Rxc1+ Bxc1+ 8.Ke4! Bd2 9.Kd3!! [ White surprisingly has to sacrifice his seocnd knight. 9.a3? doesn't work 9...Kb2 10.Kd3 Bf4!! 11.a4 Kb3 12.Nd5 Bb8! 13.a5 Ka4 14.a6 Kb5 and thanks to the manoeuvre Bf4-b8, Black has stopped white's a-pawn.] 9...Bxb4 10.Kc4 Bd2 11.Kb3! Be3 12.a3!! [ Thematic try: 12.a4? Kb1 reciprocal zugzwang with WTM 13.a5 Kc1! 14.Kc3 Bd2+! that's the trick, compare this with the main line.] 12...Kb1 13.a4 Kc1 14.Kc3! Bd2+ 15.Kd3! Bb4 16.Kc4! with the text-move wK for the fourth time (9.Kd3, 10.Kc4, 15.Kd3, and 16.Kc4) wins an important tempo by attacking bB (Réti-manoeuvre). 1-0

(8) 1st Hon. Mention - Nadareishvili-80 MT Harold van der Heijden, 2002 1.Ra3! Ba2+! 2.Kxd3 Bxe6 3.Rc3! Kd1! 4.Rxc2 Bf5+ 5.Kc3 Bxc2 6.d3! [ 6.d4? Festina Lente! Thematic try: 6...Be4! 7.Kc4 Kd2 8.d5 Ke3 9.c6 Kf4 10.c7 Bf5 ] 6...Ba4 7.d4! Ke2 8.d5! Ke3 9.c6 Ke4 10.Kc4 Ke5 11.Kc5 Bd1 12.d6 Ke6 13.d7 Ke7 14.Kb6 Kd8 15.c7+ Kxd7 16.Kb7 Bf3+ 17.Kb8 1-0

(9) HMC Nieuws Harold van der Heijden, 2002 1.Nd8+ Kc7 2.Nf7 Nb6+ 3.Kb3!! [ First thematic try: 3.Kd4? Rg8 4.Bh7 Nd7 5.Bxg8 Nf6 6.Ra5 Kb6 7.Ra8 Bc5+ 8.Ke5 Kb7 9.Rd8 Kc7 10.Ke6 h5! 11.Ra8 Kb7! 12.Ra5 Kb6! 13.Ra8 Kb7! 14.Rd8 Kc7 positional draw!; Second thematic try: 3.Kd3? Rg8 4.Bh7 Nd7 5.Bxg8 Nf6 6.Ra5 Kb6 7.Re5 Ba3! 8.Re6+ Kb5 9.Nxh6 Nd7! 10.Ng4 Nc5+ draws] 3...Rg8 4.Bh7 Nd7 5.Bxg8 Nf6 6.Ra5! Kb6 7.Re5! [ 7.Ra8? Be7! 8.Ne5 Kb7! domination; 7.Ra2? Bc5! 8.Kc4 Be7 9.Rg2 Nxg8 10.Rxg7 Nf6 11.Nxh6 Bd8! draws] 7...Nxg8 8.Re8 1-0

(10) 1st Prize - Suomen Tehtaevaeniekat 1999-00 Harold van der Heijden, 1999 1.Ba4+ Kc1 2.Bxd1 Nc3+ 3.Kxe3! f1Q 4.Nxf1 Nxd1+ 5.Kf3! Nf2! 6.Kxf2 d1Q 7.Rg1!! Kb1 [ 7...Qc2+ 8.Nfd2+ Qd1 9.Nb3+ Kc2 10.Rxd1 Kxd1 11.Ne3# ] 8.Nfd2+! Ka2 9.Rg7!! [ 9.Rxd1? stalemate; White wants to threaten mate alonmg the a-file. But the other Rook-moves with the same plan surprisingly fail! 9.Rg6? Qa4 10.Rb6 Qa7! pinning the Rook; 9.Rg5? Qa4! and obviously 10.Rb5?? is not a good idea 10...Qxb5 ; 9.Rg3? Qa4! ; 9.Rg8? Qa4 or Qh1 10.Rb8 Qa7+ ] 9...Qa4 10.Rb7 Qa6 11.Rb2+ Ka1 12.Nb3# 1-0

(11) 1st/2nd Prize - Nadareishvili-80 MT Harold van der Heijden, 2001 1.Nc3+ dxc3+ 2.dxc3 full-point reciprocal zugzwang! 2...Ra1 3.Kxa1 Kb5 4.Ka2 [ 4.Kb2? Kc4 reciprocal zugzwang with WTM] 4...Kc4 5.Kb2 reciprocal zugzwang with WTM 5...Kd5 6.Kb3 Ke4 7.Kc4! King in front of pawn! [ Not 7.Kb4? Kxf4 8.c4 Ke5! ] 7...Kxf4 8.Kd4! Kg3 9.c4 f4 10.c5 f3 11.c6 f2 12.c7 f1Q 13.c8Q Qd1+ 14.Kc3! King in front of pawn! [ 14.Ke3 Qe1+ 15.Kd3 Qd1+ 16.Kc3 loss of time; 14.Ke4? Qe2+! 15.Kd4 Qd2+! draws] 14...Qe1+ 15.Kc4! [ 15.Kd3 Qd1+ 16.Kc3 loss of time; 15.Kb3 Qb1+ 16.Kc3 loss of time] 15...Qf1+ 16.Kc5! [ 16.Kb4 Qb1+ 17.Kc3 loss of time; 16.Kd4 Qd1+ 17.Kc3 loss of time; 16.Kd5? Qd1+ draws] 16...Qg1+ 17.Kc6! [ 17.Kb4? Qb1+ 18.Kc3 loss of time; 17.Kd5? Qd1+ ; 17.Kd6? Qd1+ ] 17...Qh1+ 18.Kc7! [ 18.Kd7? Qd1+ ; 18.Kb6? Qb1+ ] and wins, e.g. 18...Qd5 [ 18...Qe4 19.Qg8+! Kf3 20.c4! ] 19.Kb6! 1-0

(12) 1st Prize - Micu-60 JT Harold van der Heijden, 2000 1.Nd2! b1N+! 2.Bxb1! axb1Q 3.Nxb1! [ 3.Nxb3+? Qxb3+ 4.Kxb3 Nxh6 ] 3...Nxh6! 4.Nd2! b2 5.Rb8! b1Q 6.Rxb1+! [ 6.Nxb1? Rxb1 ] 6...Rxb1 7.Nb3+! [ Thematic try 7.Nxb1? Kxb1 8.Kb3 Kc1! 9.Kc3 Kd1! ] 7...Rxb3+ 8.Kxb3 Kb1 9.Kc3! Kc1 10.h3!! Festina Lente! [ 10.h4? Kd1! 11.Kd3 ( 11.Kd4 Nf5+! 12.Ke5 Nxh4 ) 11...Ng4! 12.f7 Ne5+ ] 10...Kd1 [ 10...Kb1 11.h4! Kc1 12.h5! Kd1 13.Kd4! Kd2 14.Ke4! Ke2 15.Kf4! Kf2 16.Kg5 ] 11.Kd3! Ke1 12.Ke3! Kf1 13.Kf3! Kg1 14.Kg3! Kh1 15.h4! Kg1 16.h5 1-0

(13) 1st/2nd Prize - Tidskrift foer Schack 2000 Harold van der Heijden, 2000 1.f7! Ne7+ 2.Kf6! Nd5+ 3.Ke6! Ng5+ 4.Kxd5 Nxf7 5.e6! Nh6 6.h3!! [ Festina Lente! Thematic try 6.h4? Ng8! 7.Ke5 Kc4! 8.Kd6 Kd4! 9.h5 Ke4! 10.e7 Nxe7 11.Kxe7 Kf5 ] 6...Ng8 7.h4! Kc3 8.Kc5! Kd3 9.h5 Ke4 10.h6 Kf5 11.h7 1-0

(14) 2nd Hon. Mention - Tidskrift foer Schack 2000 Harold van der Heijden, 2000 1.Rh6+ f6 2.Rxf6+ Kxa5 3.Rf5+ Ne5! 4.Rxe5+ Bb5 5.Rxb5+! [ Try: 5.Bf6? Rg1+! 6.Kh2 Rf1! 7.Rxb5+ Kxa4 8.Rb6 Rf2+ 9.Kg3 Rxa2 10.Bb2 Ka5! 11.Rb8 Ra4 12.Bc3+ Ka6 13.Bb4 Ka7! Draw] 5...Kxa4 6.Rb7! [ 6.Rb8? Rg1+ ] 6...Rxa2 7.Bb2! Ka5 8.Ra7+ 1-0

(15) 1st Hon. Mention - Rezvov-80 JT Harold van der Heijden, 2002 1.Ba4! Ne3 2.Rxe4 Nd5+ 3.Ka3 Nc3 4.Rc4! [ 4.Rf4? c5! 5.Rxf3 Nb1+ 6.Kb3 Nd2+ ] 4...Nd2 5.Rxc6! Ndb1+ [ 5...Nxa4 6.Rc1+ see main line] 6.Kb3! Nxa4 Draw? 7.Rc1!! Reciprocal zugzwang with BTM. [ Not 7.Rc2? Nbc3! 8.Rc1+ Nb1 and the same reciprocal zugzwang, now with White to move; e.g. 9.Kxa4 Kb2 ] 7...Nb2 8.Rc2 Nc4 9.Ra2# 1-0

(16) Commendation - Kubbel-110 MT Harold van der Heijden, 2002 1.Ng3 Kd2 2.Nxe2 Kc2! 3.Nc1! Black was threatening mate. Now we have a reciprocal zugzwang position (compare the line for move 5). 3...Ra4+ 4.Na2 Rd4 5.Nd3! The third sacrifice by a Knight! [ Not 5.Nc1? Rb4! reciprocal zugzwang, now with White to move! (compare move 3). 6.Ned3 Rb5! and again a position of reciprocal zugzwang, e.g. 7.Ka2 Ra5# ] 5...Rxd3 6.Nb4+ draws. 1/2-1/2

(17) 1st Prize - Uralski Problemist Harold van der Heijden, 2001 1.g8N+! First Knight promotion [ 1.g8Q? Bd5+ 2.Kf8 Ng6+! ( But not: 2...Bxg8 3.Kxg8 Ng6 4.f7 reciprocal zugzwang! White draws. ) 3.Ke8 Bxg8-+ ] 1...Kg5 2.Kg7 Bg6 [ Two other thematic lines are: 2...Ng2 3.f7 Nf4 4.f8N! ; 2...Nf3 3.f7 Nd4 4.f8N! h5 5.Nf6 Nf5+ 6.Kf7! Nd6+ 7.Ke7 Nc8+ 8.Kf7= ; Also 2...h5 3.f7! Ng6 4.Nf6! ] 3.Nh6! [ 3.f7? Nf5+ 4.Kh8 Bxf7 wins, e.g. 5.Kxh7 Bh5 6.Kh8 Bg6 ] 3...Ng2 [ Another thematic line is: 3...Nf3 4.f7 Nd4 5.f8N! ; 3...Nf5+ 4.Nxf5 Kxf5 5.Kh6 ( or also 5.f7 ) 5...Kxf6 stalemate] 4.f7 Nf4 5.f8N! Second Knight promotion! [ 5.f8Q? Ne6+ ; 5.Kh8? Ne6 ] 5...Nh5+ 6.Kh8! Kxh6 7.Nxh7! Nf4 [ 7...Bxh7 stalemate; 7...Bd3 8.Nf6! Nxf6 stalemate] 8.Nf6! [ 8.Nf8? Bf7 9.Ne6 Ng6# ] 8...Kg5 9.Nh7+! [ 9.Nd7? Be8! 10.Nf8 Kf6! wins, e.g. 11.Nh7+ Kg6 12.Nf8+ Kf7 13.Nh7 Ng6# ] 9...Kh6 10.Nf6! first positional draw 10...Bf7 11.Ng8+! Kg6 12.Ne7+ [ 12.Nh6? Be6+- ( 12...Kxh6? stalemate) ] 12...Kf6 13.Ng8+ Kg6 14.Ne7+ Kh6 15.Ng8+ second positional draw 1/2-1/2

(18) Algemeen Dagblad Harold van der Heijden, 2003 1.Kh1! Most people discover the key move only after elimination of all tries. [ This breakthrough doesn't work: 1.e5? fxe5 2.g5 e4 3.g6 e3 4.g7 e2 5.g8Q e1Q 6.Qg3+ Ke2! draws.; Also not 1.g5? fxg5 and Black has a nasty check with the g-pawn.; The most obvious try is: 1.Kh3? Kf3! and now nothing important has changed, and again Black draws. 2.e5 fxe5 3.g5 e4 4.g6 e3 5.g7 e2 6.g8Q e1Q ] 1...Kf1 Black tries to keep the position the same. [ After 1...Kf3 2.e5 fxe5 3.g5 e4 ( 3...Kf2 4.g6 e4 5.g7 e3 6.g8Q ) White suddenly has: 4.Kg1! e3 5.Kf1 e2+ 6.Ke1 and stops Black's pawn.; If Black's King plays in to the e-file, he will block the e-pawn: 1...Ke3 2.e5 ( 2.g5? fxg5 3.e5?? Kf2 4.e6 g4 5.e7 g3 6.e8Q g2+ 7.Kh2 g1Q+ 8.Kh3 Qg3# ) 2...fxe5 3.g5 e4 4.g6 ; And if the Black King plays to the g-file, he will block the g-pawn: 1...Kg3 2.e5 fxe5 3.g5 ] 2.e5! fxe5 3.g5 e4 4.g6 e3 5.g7 e2 6.g8Q e1Q and again draw? 7.Qg2# No, there wás an important change: Black is mated! 1-0

(19) 4th Prize - Paoli-95 JT Harold van der Heijden, 2003 1.Rg6+! First Rook sacrifice. 1...f6+ [ If Black accepts: 1...fxg6 2.Bxa1 the white a-pawn can't be stopped.] 2.Rxf6+ Kd5 [ Another main line is: 2...Ke7 3.Re6+! Second Rook sacrifice. ( 3.Rf7+? Thematic try: 3...Kxf7 4.Bxa1 Nc5 5.a7 Ne6+ 6.Kh4 Nc7 and the a-pawn is stopped in time.) 3...Kxe6 4.Bxa1 ] 3.Rf5+ [ Thematic try: 3.Rd6+? Kxd6 4.Bxa1 Kc6 draws] 3...Ne5 [ 3...Kc6 4.Bxa1 Kb6 5.Rf6+ Ka7 6.Re6 Ndf4 7.Rd6 and White wins.] 4.Rxe5+ Kc4 [ Another main line is: 4...Kd6 5.Re6+! Third Rook sacrifice ( Thematic try: 5.Rd5+? Kxd5 6.Bxa1 Kc6 and the a-pawn will be stopped. ) 5...Kxe6 6.Bxa1 ] 5.Re4+ Nd4 [ 5...Kd3 6.Bxa1 Kxe4 7.a7 ] 6.Rxd4+ Kc5 7.Rc4+! Fourth Rook Sacrifice. [ Thematic try: 7.Rd5+? Kxd5 8.Bxa1 Kc6 9.Bd4 Kc7! and the a-pawn is stopped. Despite White's material advantage, it is a draw.] 7...Kxc4 8.Bxa1 Kb5 9.a7 wins. 1-0

(20) 3rd Prize - Sakkélet Harold van der Heijden, 2000 1.Nd4! Kc1 [ 1...Ke1 2.Kg2! d1Q 3.Rh1+ Kd2 4.Rxd1+ Kxd1 5.Kf2 is a draw.] 2.Nb3+ Kc2 3.Nxd2! Kxd2 4.Kg1! This strange-looking move is the only one to draw. [ Thematic try: 4.Kg2? e3 5.Rh1 Ke2 6.Kg3 d2 7.Kf4 Kd3! 8.Ra1 e2 Now the difference with the main line (move 11) is that wK is at f4 instead of f3. 9.Ra3+ Kc2 10.Ra2+ Kb1 wins] 4...e3 [ 4...Ke2 5.Rh2+! Ke1 6.Rh4 e3 7.Rh3! Ke2 8.Rh2+ Kd1 9.Rh3 Kd2 10.Rh1! positional draw.] 5.Rh1!! An even more surprising move! It's incredible that the manoeuvre Kh1-g1 and Rh3-h1 is the way to draw! [ 5.Rh2+? e2 ] 5...Ke2 [ 5...Kd1 6.Rh3 Kd2 7.Rh1! positional draw; 5...Ke1 6.Rh3! Kd2 7.Rh1! positional draw.] 6.Rh2+! Kd1 7.Rh3! Kd2 8.Rh1! Now Black has to try something else 8...Kc2 9.Kg2 d2 10.Kf3! Kd3 11.Ra1! Again the wR has to move to a corner. 11...e2 And now we have the same position as in the thematic try 4.Kg2?, with the difference that wK is at f3 instead of f4. That's a big difference! 12.Ra3+ Kc2 13.Ra2+ Kc1 [ For if: 13...Kb1 14.Kxe2 draws.] 14.Ra1+ positional draw. 1/2-1/2

(21) prize - Rozlov-40 JT Harold van der Heijden, 2003 1.d3!! An incredible key move. Who would find this in an over-the-board game? [ Thematic try: 1.h4? Rh3 2.Kg5 Kb3 3.h5 Kc4 4.h6 Kd5 5.Kg6 Ke6 6.Kg7 Ke7 7.h7 Rg3+ 8.Kh8 ( 8.Kh6 Kf7 9.h8N+ Kf6 ) 8...Kf7 and there's no stalemate. Black mates quickly by for instance: 9.d4 Re3 10.d5 Re8# ; 1.d4? Rh3 2.d5 Kb3 3.d6 Kc4 ; 1.Kg4? Rb1! 2.h4 Kb3 3.h5 Kc4 4.h6 Kd5 ] 1...Rxd3 [ 1...Rb1 2.h4! Kb3 3.h5 Rh1 4.Kg5 and now 4...Kc4 is not possible!; 1...Rb5 2.h4 or first 2.Kg4 2...Kb3 3.Kg4 Kc3 4.h5 Kd4 5.h6 Ke5 6.h7 Rb8 7.Kg5 Ke6 8.Kg6 ] 2.h4 Kb3 3.h5 Kc4 4.h6 [ Or 4.Kf5! Kd5 5.h6! = main line] 4...Kd5 5.Kf5! Rh3 6.Kg6 Ke6 7.Kg7! [ 7.h7? Rg3+ ] 7...Rg3+ 8.Kf8! Rh3 9.Kg7 Ke7 10.h7 Rg3+ 11.Kh8 Kf7 stalemate. 1/2-1/2