{re ICGA_J Vol. 37-3 (2014), pp. 166-168}

{the positions of Tables 1 and 2 are tagged, e.g., position g1/p1/zc} 


{Table 1}

[Event "5, Baguio City, WCC"]
[Date "1978.07.27"]
[Round "5"]
[Result "1/2-1/2"]
[White "Viktor Korchnoi"]
[Black "Anatoly Karpov"]
[ECO "E42"]
[PlyCount "247"]

1. c4 Nf6 2. d4 e6 3. Nc3 Bb4 4. e3 c5 5. Nge2 d5 6. a3 Bxc3+
7. Nxc3 cxd4 8. exd4 dxc4 9. Bxc4 Nc6 10. Be3 O-O 11. O-O b6
12. Qd3 Bb7 13. Rad1 h6 14. f3 Ne7 15. Bf2 Nfd5 16. Ba2 Nf4
17. Qd2 Nfg6 18. Bb1 Qd7 19. h4 Rfd8 20. h5 Nf8 21. Bh4 f6
22. Ne4 Nd5 23. g4 Rac8 24. Bg3 Ba6 25. Rfe1 Rc6 26. Rc1 Ne7
27. Rxc6 Qxc6 28. Ba2 Qd7 29. Nd6 Bb7 30. Nxb7 Qxb7 31. Qe3
Kh8 32. Rc1 Nd5 33. Qe4 Qd7 34. Bb1 Qb5 35. b4 Qd7 36. Qd3 Qe7
37. Kf2 f5 38. gxf5 exf5 39. Re1 Qf6 40. Be5 Qh4+ 41. Bg3 Qf6
42. Rh1 Nh7 43. Be5 Qg5 44. Qxf5 Qd2+ 45. Kg3 Nhf6 46. Rg1 Re8
47. Be4 Ne7 48. Qh3 Rc8 49. Kh4 Rc1 50. Qg3 Rxg1 51. Qxg1 Kg8
52. Qg3 Kf7 53. Bg6+ Ke6 54. Qh3+ Kd5 55. Be4+ Nxe4 56. fxe4+
Kxe4 57. Qg4+ Kd3 58. Qf3+ Qe3 59. Kg4 Qxf3+ 60. Kxf3 g6
61. Bd6 Nf5 62. Kf4 Nh4 63. Kg4 gxh5+ 64. Kxh4 Kxd4 65. Bb8 a5
66. Bd6 Kc4 67. Kxh5 a4 68. Kxh6 Kb3 69. b5 Kc4 70. Kg5 Kxb5
71. Kf5 Ka6 72. Ke6 Ka7 73. Kd7 Kb7 74. Be7 Ka7 75. Kc7 Ka8
76. Bd6 Ka7 77. Kc8 Ka6 78. Kb8 b5 79. Bb4 Kb6 80. Kc8 Kc6
81. Kd8 Kd5 82. Ke7 Ke5 83. Kf7 Kd5 84. Kf6 Kd4 85. Ke6 Ke4
86. Bf8 Kd4 87. Kd6 Ke4 88. Bg7 Kf4 89. Ke6 Kf3 90. Ke5 Kg4
91. Bf6 Kh5 92. Kf5 Kh6 93. Bd4 Kh7 94. Kf6 Kh6 95. Be3+ Kh5
96. Kf5 Kh4 97. Bd2 Kg3 98. Bg5 Kf3 99. Bf4 Kg2 100. Bd6 Kf3
101. Bh2 Kg2 102. Bc7 Kf3 103. Bd6 Ke3 104. Ke5 Kf3 105. Kd5
Kg4 106. Kc5 Kf5 107. Kxb5 Ke6 108. Kc6 Kf6 109. Kd7 Kf7
110. Be7 Kg8 111. Ke6 Kg7 112. Bc5 Kg8 113. Kf6 Kh7 114. Kf7
Kh8 115. Bd4+ Kh7 116. Bb2 Kh6 117. Kg8 Kg6 118. Bg7 Kf5
119. Kf7 Kg5 120. Bb2 Kh6 121. Bc1+ Kh7 122. Bd2 Kh8 123. Bc3+
Kh7 124. Bg7 
{position g1} 1/2-1/2


[Event "FIDE World Championship Tournament"]
[Site "Mexico City MEX"]
[Date "2007.09.15"]
[Round "3"]
[Result "1/2-1/2"]
[White "Viswanathan Anand"]
[Black "Vladimir Kramnik"]
[ECO "C42"]
[WhiteElo "2803"]
[BlackElo "2811"]
[PlyCount "130"]

1.e4 e5 2.Nf3 Nf6 3.Nxe5 d6 4.Nf3 Nxe4 5.d4 d5 6.Bd3 Nc6 7.O-O
Be7 8.c4 Nb4 9.Be2 O-O 10.Nc3 Bf5 11.a3 Nxc3 12.bxc3 Nc6
13.Re1 Re8 14.cxd5 Qxd5 15.Bf4 Rac8 16.Qa4 Bd7 17.Qc2 Qf5
18.Qxf5 Bxf5 19.Bb5 Bd7 20.d5 Ne5 21.Bxd7 Nxd7 22.Bxc7 Rxc7
23.d6 Rxc3 24.dxe7 f6 25.Rad1 Rc7 26.Nd4 Ne5 27.f4 Nc6 28.Nxc6
bxc6 29.Rd6 c5 30.Ree6 c4 31.Rc6 Rexe7 32.Rxc4 Rxc4 33.Rxe7
Ra4 34.Rb7 h6 35.f5 Rxa3 36.Kf2 h5 37.g3 a5 38.Ra7 a4 39.h4
Ra2+ 40.Kf3 a3 41.Ke3 Ra1 42.Kf2 Kf8 43.Kg2 a2 44.Kh2 Ke8
45.Kg2 Kd8 46.Kh2 Kc8 47.Kg2 Kb8 48.Ra3 Kb7 49.Ra4 Kb6 50.Ra8
Kc5 51.Ra7 Kd5 52.Ra4 Ke5 53.Ra5+ Ke4 54.Kh2 Kf3 55.Ra3+ Kf2
56.Ra4 Kf1 57.Kh1 Ke1 58.Kg2 Kd1 59.Ra7 Rc1 60.Rxa2 Rc2+
61.Rxc2 Kxc2 62.Kf3 Kd3 63.g4 hxg4+ 64.Kxg4 Ke4 65.Kh5 
{position g2} Kxf5 1/2-1/2


[Event "Corus"]
[Site "Wijk aan Zee NED"]
[Date "2007.01.26"]
[EventDate "2007.01.13"]
[Round "11"]
[Result "1/2-1/2"]
[White "Magnus Carlsen"]
[Black "Loek van Wely"]
[ECO "B90"]
[WhiteElo "2690"]
[BlackElo "2683"]
[PlyCount "218"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be3 e5
7. Nf3 Be7 8. Bc4 O-O 9. Qd3 Nc6 10. a3 b5 11. Bd5 Qc7 12. Bg5
Be6 13. Bxf6 Bxf6 14. O-O Rac8 15. Rfd1 Nd4 16. h3 g6 17. Rac1
Bg7 18. Qe3 Qb8 19. Qd3 Qc7 20. Nxd4 exd4 21. Bxe6 fxe6
22. Ne2 Bh6 23. Rb1 Qxc2 24. Qxc2 Rxc2 25. Nxd4 Rcxf2 26. Nxe6
R8f6 27. Rxd6 Be3 28. Kh1 Kf7 29. Nd8+ Ke7 30. Rxf6 Rxf6
31. e5 Rb6 32. Rd1 Bf4 33. g4 Bxe5 34. Re1 Kf6 35. Rf1+ Ke7
36. Re1 Kf6 37. Rf1+ Kg7 38. Rf7+ Kg8 39. b3 Rd6 40. Re7 Bb2
41. Re8+ Kg7 42. a4 Rd3 43. axb5 axb5 44. Kg2 Bf6 45. Nc6 Rxb3
46. Rb8 h5 47. gxh5 gxh5 48. Na7 b4 49. Nc6 Bc3 50. Nxb4 Bxb4
51. h4 Kf6 52. Rb5 Kg6 53. Rg5+ Kf6 54. Rb5 Ke6 55. Rxh5 Bd6
56. Rg5 Bf4 57. Rc5 Be5 58. h5 Rg3+ 59. Kf1 Rh3 60. Ke2 Kf5
61. h6 Ke4 62. Rc4+ Bd4 63. Rc2 Rxh6 64. Rd2 Rh3 65. Rc2 Bc3
66. Kd1 Kd4 67. Rf2 Kd3 68. Rd2+ Kc4 69. Rf2 Re3 70. Re2 Rd3+
71. Kc2 Bd4 72. Rd2 Ra3 73. Re2 Be3 74. Kd1 Ra1+ 75. Kc2 Kd4
76. Kb2 Ra8 77. Kb1 Rh8 78. Kc2 Rc8+ 79. Kb3 Kd3 80. Rb2 Bd2
81. Rb1 Ra8 82. Rb2 Ra1 83. Ra2 Rd1 84. Rc2 Ra1 85. Rc3+ Kd4
86. Rc4+ Kd5 87. Rg4 Be3 88. Kc2 Bd4 89. Kd3 Ra3+ 90. Ke2 Kc4
91. Rg2 Rh3 92. Kd2 Re3 93. Re2 Ra3 94. Kc2 Be3 95. Kb2 Kb4
96. Kb1 Bd4 97. Kc2 Kc4 98. Rd2 Be3 99. Re2 Rb3 100. Kd1 Kd3
101. Rd2+ Ke4 102. Kc2 Rb8 103. Rd3 Bd4 104. Rd2 Rc8+ 105. Kd1
Be3 106. Rc2 Rf8 107. Ke2 Kd4 108. Kd1 Kd3 109. Rd2+ 
{position g3} Bxd2
1/2-1/2


[Event "US Championship 1963/64"]
[Site "New York City, NY USA"]
[Date "1963.12.29"]
[Round "9"]
[Result "1/2-1/2"]
[White "Larry Melvyn Evans"]
[Black "Samuel Reshevsky"]
[ECO "E55"]
[PlyCount "99"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Bd3 O-O 6. Nf3 d5
7. O-O dxc4 8. Bxc4 Nbd7 9. Qe2 a6 10. a3 cxd4 11. axb4 dxc3
12. bxc3 Qc7 13. e4 e5 14. Bb2 Nb6 15. Bb3 Bg4 16. Ra5 Rac8
17. c4 Nbd7 18. h3 Bxf3 19. Qxf3 Rfe8 20. Rd1 Ra8 21. c5 Rad8
22. Ba4 Re7 23. Rd6 b5 24. Bc2 Nxc5 25. Rxd8+ Qxd8 26. Qe3
Ncd7 27. Qd3 Qb6 28. Bc1 h6 29. Be3 Qb7 30. f3 Nb8 31. Ra2 Rd7
32. Qa3 Kh7 33. Kh2 Qc7 34. Bd3 Nh5 35. Rc2 Qd8 36. Bf1 Rd1
37. Rc1 Rd6 38. Qa2 Qf6 39. Rc7 Nd7 40. Ra7 Nf4 41. Qc2 h5
42. Qc8 Rd1 43. Bxb5 Qg5 44. g3 axb5 45. Rxd7 Re1 46. Rxf7
Rxe3 47. h4 Re2+ 48. Kh1 Qxg3 
{position g4} 49. Qg8+ Kxg8 50. Rxg7+ 1/2-1/2


[Event "Kubbel study"]
[Date "1916.??.??"]
[White "KPP"]
[Black "KRP"]
[Result "1/2-1/2"]
[Annotator "Haworth, Guy"]
[SetUp "1"]
[FEN "4r3/Kp6/5P2/1k2P3/8/8/8/8 w - - 0 1"]
[PlyCount "10"]

{position jb1} 1. f7 $3 Rf8 $3 2. e6 $3 b6 $3 3. Kb7 $3 (3. e7 Rxf7) 3... Kc5
$3 4. e7 $3 (4. Kc7 $4 {dtm = 18m} Kd5 $3 5. Kd7 $1 Ke5 $3 6. Ke7 $1 Rb8 $1)
4... Rxf7 $3 5. Ka6 $3 Rxe7 $3 {but White is stalemated} 1/2-1/2


[Event "Sehwers study"]
[Date "1905.??.??"]
[White "KRB"]
[Black "KNPP"]
[Result "1/2-1/2"]
[Annotator "Haworth, Guy"]
[SetUp "1"]
[FEN "7R/8/3Bn3/8/5pK1/8/6p1/k7 w - - 0 1"]
[PlyCount "12"]

{position jb2} 1. Be5+ (1. Ra8+ {dtm = 21m} Kb1 $3 2. Rb8+ $1 Kc2 $1 3. Rc8+ $1
Kd1 $1 4. Bxf4 $1 g1=Q+ $3) 1... Kb1 $3 2. Rb8+ $3 Kc1 $3 3. Bxf4+ $3 Nxf4 $3
4. Kh4 $3 Ng6+ (4... g1=Q 5. Rb1+ $3 Kxb1 {stalemate}) 5. Kh3 $3 g1=Q {
Promotion to B/N only draws} 6. Rb1+ $3 Kxb1 {stalemate} 1/2-1/2


[Event "Lewandowski study"]
[Date "1986.??.??"]
[White "KQBNNP"]
[Black "KQRRB"]
[Result "1/2-1/2"]
[Annotator "Haworth, Guy"]
[SetUp "1"]
[FEN "6Q1/q2r4/4r3/7B/2N1b3/8/2P3N1/4K1k1 w - - 0 1"]
[PlyCount "12"]

{position jb3} 1. Nge3+ $3 Bg6 2. Qxe6 $3 Qa1+ 3. Bd1 $3 (3. Nd1 $4 Rxd1+ $1 4.
Bxd1 Qc3+ $1 {and mate in 2m}) 3... Qc3+ $3 (3... Rxd1+ $4 4. Nxd1 $3) 4. Ke2
$3 Bh5+ $3 5. Ng4 $3 Re7 6. Nce5 $3 (6. Qxe7 $4 Bxg4#) 6... Rxe6 {stalemate}
1/2-1/2


[Event "Herbstman/Kubbel study"]
[Date "1937.??.??"]
[White "KN"]
[Black "KNNP"]
[Result "1/2-1/2"]
[Annotator "Haworth, Guy"]
[SetUp "1"]
[FEN "8/8/8/7n/8/7N/3kp1K1/5n2 w - - 0 1"]
[PlyCount "14"]

{position jb4} 1. Ng1 $3 Ne3+ (1... Nf4+ 2. Kh1 $3 e1=N 3. Nf3+ $3 $11 Nxf3 {
stalemate}) 2. Kh3 $3 Nf4+ (2... e1=N 3. Nf3+ $3 $11 Nxf3 {stalemate}) 3. Kh2
$3 Ng4+ 4. Kh1 $3 Nf2+ 5. Kh2 e1=N 6. Nf3+ $3 Nxf3+ 7. Kg3 Ke3 {stalemate}
1/2-1/2


[Event "m1: mutual stalemate"]
[Date "2015.02.26"]
[White "KPPP"]
[Black "KPPP"]
[Result "1/2-1/2"]
[Annotator "Haworth, Guy"]
[SetUp "1"]
[FEN "7k/6pP/6P1/8/8/1p6/pP6/K7 w - - 0 1"]
[PlyCount "0"]

{position m1 from Noam Elkies: mutual stalemate}  *


[Event "m2: mutual stalemate"]
[Date "2015.02.26"]
[White "KPP"]
[Black "KPPP"]
[Result "1/2-1/2"]
[Annotator "Haworth, Guy"]
[SetUp "1"]
[FEN "8/8/8/8/1p6/kPp5/p1P5/K7 w - - 0 1"]
[PlyCount "0"]

{position m2 from NDE: mutual stalemate}  *


[Event "m3: mutual stalemate"]
[Date "2015.02.26"]
[White "KP"]
[Black "KPPP"]
[Result "1/2-1/2"]
[Annotator "Haworth, Guy"]
[SetUp "1"]
[FEN "8/8/8/8/8/3p4/p1pP4/k1K5 w - - 0 1"]
[PlyCount "0"]

{position m3 from NDE: mutual stalemate}  *


[Event "s3: Black 'nulls', White loses"]
[Date "2015.02.26"]
[White "KP"]
[Black "KPP"]
[Result "0-1"]
[Annotator "Haworth, Guy"]
[SetUp "1"]
[FEN "8/8/8/8/8/3p4/p2P4/k1K5 w - - 1 2"]
[PlyCount "6"]

{position s3 from NDE/m3. After 1. ... 'null', White loses} 2. Kd1 Kb2 3. Ke1 Kc1 4. Kf2
Kxd2 *


[Event "m4: mutual stalemate"]
[Date "2015.02.26"]
[White "K"]
[Black "KBPPP"]
[Result "1/2-1/2"]
[Annotator "Haworth, Guy"]
[SetUp "1"]
[FEN "8/8/8/8/8/2p5/p1p5/kbK5 b - - 0 1"]
[PlyCount "0"]

{position m4 from NDE: mutual stalemate}  *


[Event "s4: Black 'nulls', White loses"]
[Date "2015.02.26"]
[White "K"]
[Black "KBPP"]
[Result "0-1"]
[Annotator "Haworth, Guy"]
[SetUp "1"]
[FEN "8/8/8/8/8/8/p1p5/kbK5 w - - 1 2"]
[PlyCount "2"]

{position s4 from NDE/m4: Black 'nulls', White loses} 2. Kd2 Kb2 *


[Event "m5: mutual stalemate"]
[Date "2015.02.26"]
[White "K"]
[Black "KPPPP"]
[Result "1/2-1/2"]
[Annotator "Haworth, Guy"]
[SetUp "1"]
[FEN "8/8/8/8/pp6/kp6/1p6/1K6 b - - 0 1"]
[PlyCount "0"]

{position m5 from NDE: mutual stalemate}  *


[Event "s5: Black 'nulls', White loses"]
[Date "2015.02.26"]
[White "K"]
[Black "KPPPP"]
[Result "0-1"]
[Annotator "Haworth, Guy"]
[SetUp "1"]
[FEN "8/8/8/pp6/kp6/1p6/1K6/8 w - - 1 2"]
[PlyCount "8"]

{position s5 from NDE/m5: Black 'nulls', White loses} 2. Kb1 Ka3 2. Ka1 b2+ 3.
Kb1 a4 4. Kc2 Ka2 *


[Event "s6: after two 'nulls', Black wins"]
[Date "2015.02.26"]
[White "KP"]
[Black "KP"]
[Result "1/2-1/2"]
[Annotator "Haworth, Guy"]
[SetUp "1"]
[FEN "7k/6pP/6K1/8/8/8/8/8 w - - 0 2"]
[PlyCount "30"]

{position s6 from NDE: after two 'null' moves, Black wins} 2. Kg5 Kxh7 3. Kh5
g6+ 4. Kg5 Kg7 5. Kg4 Kh6 6. Kh4 g5+ 7. Kg4 Kg6 8. Kg3 Kh5 9. Kh3 g4+ 10. Kg3
Kg5 11. Kg2 Kh4 12. Kh2 g3+ 13. Kg2 Kg4 14. Kg1 Kh3 15. Kh1 g2+ 16. Kg1 Kg3 {
17. 'null', the second null-move Kh3 18. Kf2 Kh2 19.Ke3 g1=Q} 1/2-1/2



{Table 2} 

[Event "Exemplar 4-ply-loop misdirection now ok"]
[Date "2015.02.26"]
[White "KRRP"]
[Black "KQ"]
[Result "*"]
[Annotator "Haworth, Guy"]
[SetUp "1"]
[FEN "8/8/5q2/8/2k5/3R4/1KP5/2R5 w - - 0 1"]
[PlyCount "4"]

{position p1} 1. Ka2 {in fact, DTZ50'-suboptimal} Qa6+ 2. Kb2 {in fact,
DTZ50'-suboptimal} Qf6+ {{position p1 again}} *


[Event "Example of 1-ply-DTZ50'-suboptimal move"]
[Date "2015.02.26"]
[White "KQQRB"]
[Black "K"]
[Result "1-0"]
[Annotator "Haworth, Guy"]
[SetUp "1"]
[FEN "8/8/8/Q1R5/8/2B5/8/QK3k2 b - - 0 1"]
[PlyCount "7"]

{position p2} 1... Ke2 2. Rf5 Kd3 (2... Kd1 {optimal in winner's moves but
in fact one ply DTZ50'-suboptimal} 3. Qd8+ Ke2 4. Qd2#) 3. Qd8+ Ke3 4. Qd3+
Kxd3 1-0


[Event "Faulty DTZ50'-depth indications"]
[Date "2015.02.26"]
[White "KRPP"]
[Black "KR"]
[Result "1-0"]
[Annotator "Haworth, Guy"]
[SetUp "1"]
[FEN "3k4/4r3/6K1/8/8/8/2PP3R/8 w - - 0 1"]
[PlyCount "1"]

{position p3} 1. c4 {in fact, any P-push wins} ({but the most obvious win is} 
1. Rh8+ Kd7 2. Rh7 Kd8 3. Rxe7 Kxe7) *


[White "KP"]
[Black "KBB"]
[Result "1-0"]
[Date "2014.08.15"]
[Event "5m, 2-3m, KPKBB, GBR 0060.10: SZ50' v SZ"]
[Annotator "Haworth, Guy"]
[SetUp "1"]
[FEN "3k4/P7/5b2/5K2/8/8/2b5/8 w - - 0 1"]
[PlyCount "19"]

{position a: v = 2, dtz/z50' = 7/19p} 
{SV+Z50'-/SV+Z50'+} 1. Kf4 Bg5+ 2. Ke5 
({SZ-/SZ+} 2. Kf3?? {v = -1: dtz50' = 2p} Bd1+?? {v = 2: dtz(50') = 3p. 2. ... (Ke7/Be5)''''} 3. Kg2 Kd7 4. a8=Q {KQKBB: v = -2, dtz(50') = 6p})
2... Bf6+ 3. Kd5 Bb3+ 4. Kc6 Ba4+ 5. Kd6 
{position b: v = -2, dtz/z50' = 8/10p} Be7+ 6. Kd5 
{position c: v = -2, dtz/z50' = 6/8p} Bb3+ 7. Ke4 
{position d: v = -2, dtz(50') = 6p} Bc2+ 
{position a1} 8. Kf3 
{position a2} Bd1+ 
{position a3} 9. Kg2 
{position a4} Kc8 
{position a5} 10. a8=Q+ {KQKBB: v = -2, dtz(50') = 6p} 
{MB 'Nalimov' DTZ(50) and de Man DTZ50' EGTs} *


[White "KRP"]
[Black "KP"]
[Result "1-0"]
[Date "2014.08.07"]
[Event "5m, 3-2m, KRPKP, GBR 0100.11: SZ50' v SZ"]
[Annotator "Haworth, Guy"]
[SetUp "1"]
[FEN "6R1/P7/1k6/8/8/8/p2K4/8 b - - 0 1"]
[PlyCount "2"]

{position e: v = -1, dtz/z50' = 2/1p} 
{SV+Z50'-/SV+Z50'+} 1... a1=Q 
({SZ-/SZ+} 1... Kb5?? {v = 2, dtz(50') = 1p}) 
2. a8=Q {KQRKQ: v = -1, dtz(50') = 106p} 
{MB 'Nalimov' DTZ(50) and de Man DTZ50' EGTs} *


[White "KQ"]
[Black "KBBN"]
[Result "1-0"]
[Date "2014.07.31"]
[Event "6m, 2-4m, KQKBBN, GBR 1063.00: SZ50' v SZ"]
[Annotator "Haworth, Guy"]
[SetUp "1"]
[FEN "b7/b7/5Q2/8/8/3k4/8/1K1n4 b - - 0 1"]
[PlyCount "90"]

{1 of 14 maxDTZ50' 2-4m_P-less btm losses} 
{position n: v = -1, dtz/z50' = 102/90p}  
{SV+Z50'-/SV+Z50'+} 1... Bb7 2. Qf1+ 
{position o: v = -1, dtz/z50' = 100/88p} Kd2
3. Qf4+ Kd3 4. Qc7 Nc3+ 5. Kb2 Na4+ 6. Ka3 Nc5 7. Qa5 Ba6 8. Kb4 Ke4 9. Qc7 Bb7
10. Qh2 Nd3+ 11. Kb5 Nc5 12. Qe2+ Kd4 13. Qd1+ Ke4 14. Qb1+ Kf4 15. Qa2 Ba6+
16. Kc6 Ke4 17. Qd5+ Ke3 18. Qg8 Bb7+ 19. Kc7 Kd4 20. Qg1+ Kc4 21. Qf1+ Kd5 22.
Qg2+ Kd4 23. Qb2+ Ke4 24. Kd6 Ba6 25. Qg2+ Ke3 26. Qg7 Bb7 27. Qg1+ Kd3 28.
Qb1+ Ke3 29. Ke7 Ba6 30. Qd1 Ke4 31. Qd8 Bb7 32. Qd2 Ba6 33. Qd1 Bb7 34. Qb1+ 
{position p: v = -1, dtz/z50' = 36/24p} Ke3 35. Kf8 Ba6 36. Qg1+ Ke4 
({SZ-/SZ+} 36... Kd2 37. Qg2+ Kc1 38. Qa2 Bb6 39. Kf7 Bd3 40. Kg8 Bc2 41. Qa3+ Kd1 
42. Qf3+ Kc1 43. Qf4+ Kb1 44. Qb4+ Bb3+ 45. Kg7 Ba7 46. Kh6 Kb2 47. Qd2+ Bc2 48. Qf2 Kc3
49. Qf7 Bb8 50. Qf8 Nd7 51. Qc8+ Kb3 52. Qxd7 {KQKBB: v = -1, dtz(50') = 104p})
37. Qg2+ Kf4 38. Qa8 Bb6 39. Kg7 Bb7 40. Qe8 Ba7 41. Kh6 
{position q: v = -1, dtz/z50' = 24/10p} Kf5 42. Qe7 Kg4 43. Qf6 
{position r: v = -1, dtz/z50' = 14/6p} Kg3 
{position r1} 44. Qa1 
{position s: v = -1, dtz/z50' = 6/4p} Bb8 
{position t: v = 1, dtz(50') = 3p} 45. Qg1+ 
{position t1} Kf3 
{position u: v = 1, dtz(50') = 1p} 46. Qxc5 {KQKBB: dtz(50') = 122p}  
{MB 'Nalimov' DTZ and de Man DTZ50' EGTs} *


[White "KBN"]
[Black "KP"]
[Result "1-0"]
[Date "2014.08.29"]
[Event "5m, 3-2m, KBNKP, GBR 0011.01: SZ50' v SZ"]
[Annotator "Haworth, Guy"]
[SetUp "1"]
[FEN "8/8/2K5/2N4B/8/1k6/1p6/8 b - - 0 1"]
[PlyCount "9"]

{position zb: v = -1, dtz/z50' = 18/7p}
{SV+Z50'-/SV+Z50'+} 1. ... Ka2 2. Bf7+ Ka3 
({SZ-/SZ+} 2... Kb1 3. Bg6+ Ka1 4. Nb3+ Ka2 5. Nd2 Ka3 6. Bb1 Kb4 
7. Kd5 Ka4 8. Nc4 Kb3 9. Kd4 Ka4 10. Nxb2+ {KBNK: v = -2, dtx = 46p}) 
3. Bg6 Ka2 4. Na4 
{position zc: v = -1, dtz/z50' = 11/1p} b1=N {KBNKN: v = 1, dtz(50') = 109p} 
{MB 'Nalimov' DTZ and de Man DTZ50' EGTs} *


[White "KNN"]
[Black "KP"]
[Result "1-0"]
[Date "2014.09.30"]
[Event "5m, 3-2m, KNNKP, GBR 0002.01: SZ50' v SZ"]
[Annotator "Haworth, Guy"]
[SetUp "1"]
[FEN "8/8/1N6/p7/8/4N3/8/K1k5 w - - 0 1"]
[PlyCount "86"]

{position zf: v = 2, dtz/z50' = 2/86p} 
{SV+Z50'-/SV+Z50'+} 1. Na4 
({SZ-/SZ+} 1. Nec4 a4 {v = 1, dtz50' = 126p}) ({SZ-/SZ+} 1. Nbc4 a4 {v = 1, dtz50' = 130p}) 
{position zf2} 1... Kd2 2. Nc4+ Kd3 3. Ncb2+ Kd2 4. Kb1 Ke3 5. Kc1 Ke2 6. Kc2
Ke3 7. Kc3 Ke4 8. Nd3 Ke3 9. Ndc5 Kf4 10. Kd4 Kf5 11. Nd3 Ke6 12. Ke4 Kd6 13. Nf4
Kc6 14. Ne2 Kd6 15. Nd4 Ke7 16. Ke5 Kf7 17. Kf5 Ke7 18. Nb5 Kd7 19. Ke5 Kc6 20.
Na3 Kd7 21. Nc5+ Ke7 22. Ne4 Kf7 23. Kd6 Kg7 24. Ke6 Kg6 25. Nc4 Kg7 26. Ned2
Kg6 27. Nf3 Kh6 28. Kf5 Kg7 29. Ng5 Kf8 30. Kf6 Ke8 31. Ke6 Kf8 32. Nh3 Kg8 33.
Nf4 Kg7 34. Ke7 Kh6 35. Kf6 Kh7 36. Ne2 Kh6 37. Ng3 Kh7 38. Nf5 Kg8 39. Ke7 Kh8
40. Ne5 Kh7 41. Ke8 Kg8 42. Ng6 Kh7 
{position zg: v = 2, dtz(50') = 2p} 43. Kf7 a4 {KNNKP(a4): v = 2, dtz(50') = 4p}
{MB 'Nalimov' DTZ and de Man DTZ50' EGTs} *


[White "KNN"]
[Black "KP"]
[Result "1-0"]
[Date "2013.10.20"]
[Event "5m, 3-2m, KNNKP, GBR 0002.01, maxDTZ s6m w&l: SV+Z50'-/SV+Z50'+"]
[Annotator "Haworth, Guy"]
[SetUp "1"]
[FEN "K7/N7/k7/8/3p4/8/N7/8 w - - 0 1"]
[PlyCount "164"]

{a maxDTZ(50') KNNKP wtm 50-move-draw and 1 of 18 maxDTZ s6m wtm 'wins'}
{position zh: v = 1, dtz(50') = 164p} {KNNKP(d4)} 
{SV+Z50'-/SV+Z50'+} 1. Nb4+ 
{1 of 13 maxDTZ s6m btm losses} 
{position zh2} Kb6 
{position zh3} 2. Nd3 Kc7 3. Nb5+ Kc6 
4. Na3 Kb6 5. Nc2 Kb5 6. Kb7 Kc4 7. Ncb4 Kb5 8. Kc7 Kc4 9. Kb6 Kc3 
10. Kc5 Kb3 11. Kd5 Kc3 12. Ke4 Kd2 13. Kf3 Kd1 14. Na6 Kd2 15. Nac5 Kd1 
16. Ne4 Kc2 17. Ke2 Kb3 18. Kd2 Kc4 19. Nec5 Kb5 20. Kc2 Kc6 21. Kb3 Kc7 
22. Kb4 Kc6 23. Ka5 Kd6 24. Kb6 Kd5 25. Kb5 Kd6 26. Kc4 Kc6 
27. Ne4 Kd7 28. Kd5 Ke7 29. Ke5 Kd7 30. Kf6 Kc7 31. Ke7 Kc6 32. Ke6 Kc7
33. Kd5 Kd7 34. Nf6+ Ke7 35. Ke5 Kf7 36. Nd5 Kg6 37. N5b4 Kg5 38. Nc2 Kg6 39.
Ke6 Kg7 40. Na3 Kf8 41. Nb5 Ke8 42. Nc7+ Kd8 43. Kd6 Kc8 44. Ne6 Kb8 45. Kc5
Ka7 46. Kc6 Ka6 47. Nec5+ Ka5 48. Ne4 Ka6 49. Nd2 Ka5 50. Kc5 Ka6 51. Nc4 Kb7
52. Kd6 Kc8 53. Na5 Kd8 54. Nb7+ Ke8 55. Ke6 Kf8 56. Nd6 Kg7 57. Kf5 Kh6 58.
Kf6 Kh5 59. Ne4 Kg4 60. Ng5 Kh4 61. Kf5 Kg3 62. Ke4 Kg4 63. Nf7 Kg3 64. Nfe5
Kh4 65. Kf5 Kh5 66. Ng4 Kh4 67. Nf6 Kh3 68. Ke5 Kg3 69. Ke4 Kh3 70. Kf3 Kh4 71.
Kf4 Kh3 72. Ne4 Kh4 73. Ng3 Kh3 74. Nf5 Kg2 75. Kg4 Kg1 76. Ng3 Kg2 77. Ne4 Kg1
78. Kg3 Kf1 79. Kf3 Kg1 80. Nd2 Kh2 81. Nf2 Kg1 82. Kg3 d3 
{KNNKP(d3): v = 2, dtz(50') = 2p} {MB 'Nalimov' DTZ and de Man DTZ50' EGTs} *


[White "KNN"]
[Black "KP"]
[Result "1-0"]
[Date "2014.11.07"]
[Event "5m, 3-2m, KNNKP, GBR 0002.01: SZ50' v SZ"]
[Annotator "Haworth, Guy"]
[SetUp "1"]
[FEN "8/8/4N3/8/7p/5k1N/8/K7 w - - 0 1"]
[PlyCount "120"]

{position zj: v = 1, dtz/z50' = 108/120p}
{SV+Z50'-/SV+Z50'+} 1. Nef4 
{position zj2} Ke3 
{position zj3} 2. Kb2 Kf3 3. Kc3 Ke4 
({SZ-/SZ+} 3... Ke3 4. Kc4 Ke4 5. Nd3 Kf5 6. Kd5 Kg4 7. Ndf2+ Kf5 8. Ne4 Kg4 9. Neg5 Kf5 10. Kd4 Kf6 11. Ke4 Ke7 12.
Ke5 Kd7 13. Kd5 Kc7 14. Ne4 Kb6 15. Nd6 Ka5 16. Kc5 Ka4 17. Ne4 Kb3 18. Kb5 Ka3
19. Kc4 Ka4 20. Nc3+ Ka5 21. Nd5 Ka6 22. Kc5 Ka7 23. Kc6 Ka6 24. Nb6 Ka5 25.
Kc5 Ka6 26. Nc4 Kb7 27. Kd6 Kc8 28. Na5 Kb8 29. Kd7 Ka7 30. Kc6 Kb8 31. Nc4 Kc8
32. Ne3 Kb8 33. Nf5 Kc8 34. Ne7+ Kd8 35. Kd6 Ke8 36. Nc6 Kf8 37. Kd5 Kf7 38.
Ke5 Kf8 39. Kf6 Ke8 40. Ke6 Kf8 41. Na5 Kg7 42. Nc4 Kf8 43. Nd6 Kg8 44. Ke5 Kg7
45. Kf5 Kg8 46. Kg6 Kf8 47. Kf6 Kg8 48. Nb5 Kh7 49. Nd4 Kh6 50. Nf5+ Kh5 51.
Ne3 Kh6 52. Ng4+ Kh7 53. Kf7 Kh8 54. Ng5 h3 {KNNKP(h3)} 55. Ne5 h2 56. Ng6#) 
{position zk: v = 1, dtz/z50' = 100/114p} 4. Kc4 Kf5 5. Nd3 Ke4 6. Ndf2+ Ke5 7. Kc5 Ke6 8. Ne4 Kd7 9. Kd5 Ke7 
{position zl: v = 1, dtz/z50' = 98/102p} 10. Kc6 Ke6 
{position zm: v = 2, dtz/z50' = 96/100p} 11. Neg5+ Ke5
12. Kc5 Kf6 13. Kd4 Kf5 14. Kd5 Kf6 15. Ke4 Ke7 16. Ke5 Kd7 17. Kd5 Kc7 18. Ne4
Kb6 19. Nd6 Ka5 20. Kc5 Ka4 21. Ne4 Kb3 22. Kb5 Kb2 23. Kb4 Kc2 24. Kc4 Kb2 25.
Nc5 Kc2 26. Nb3 Kb2 27. Nd4 Ka3 28. Kb5 Ka2 
{position zn: v = 2, dtz/z50' = 44/64p} 29. Ka4 
{position zo: v = -2, dtz/z50' = 63/63p} Kb2 30. Kb4 Kc1 31. Kc3 Kd1
32. Kd3 Kc1 33. Nb3+ Kb2 34. Nc5 Kc1 35. Na4 Kb1 36. Kd2 Ka2 37. Kc3 Kb1 38.
Nc5 Kc1 39. Nb3+ Kb1 40. Nd2+ Ka2 41. Nc4 Kb1 42. Kd2 Ka2 43. Kc2 Ka1 44. Kb3
Kb1 45. Nb2 Kc1 46. Kc3 Kb1 47. Nd3 Ka2 48. Kb4 Kb1 49. Kb3 Ka1 50. Ne1 Kb1 51.
Nf3 Kc1 52. Kc3 Kb1 53. Nf2 Ka2 54. Nd1 Kb1 55. Nb2 Kc1 56. Nd3+ Kd1 57. Nf4
Kc1 58. Ne2+ Kb1 59. Kb3 Ka1 60. Nd2 h3 {MB 'Nalimov' DTZ and de Man DTZ50' EGTs} *


