ecocodes
Volume D · Closed and semi-closed games‹ D12D14 ›
a1b2c3d4e5f6g7h8
Reference position · White to move

D13 Slav Defense: Exchange Variation

D13 holds two named lines, all under the name Slav Defense. It leaves D11 (Slav Defense: Modern Line) with 3...Nf6 4.cxd5 cxd5. White’s pieces and pawns attack four squares in Black’s half, the fewest of the 10 Slav Defense codes. White, to move in that position, has 30 legal moves, the second-lowest count of the 10 Slav Defense codes. At eight plies, its reference line is the fourth-shortest of the 10 Slav Defense codes.

Score sheet
#WhiteBlack
1d4d5
2c4c6
3Nf3Nf6
4cxd5cxd5

Moves only D13 plays

Same as D12 up to 3...Nf6, then:

  1. 4.cxd5 The c-pawn takes the pawn on d5, covering c6 and e6.
  2. 4...cxd5 The c-pawn takes the pawn on d5, covering c4 and e4.

Lines filed under D13

Both share the start 1.d4 d5 2.c4 c6 3.Nf3 Nf6 and then split two ways at White’s move 4.

NameAfter the shared startPlies
Slav Defense: Exchange Variation4.cxd5 cxd58
Slav Defense: Exchange Variation, Schallopp Variation4.e3 Bf5 5.cxd5 cxd5 6.Nc311

Slav Defense: Exchange Variation, Schallopp Variation

  1. 4.e3 The e-pawn advances to e3, covering d4 and f4, opening a line for the queen on d1 and the bishop on f1.
  2. 4...Bf5 The bishop leaves c8 for f5, opening a line for the queen on d8, attacking the knight on b1.
  3. 5.cxd5 The c-pawn takes the pawn on d5, covering c6 and e6, opening a line for the bishop on f1.
  4. 5...cxd5 The c-pawn takes the pawn on d5, covering c4 and e4.
  5. 6.Nc3 The knight leaves b1 for c3, opening a line for the rook on a1.

The road to D13

  1. 1.d4 … 2.c4three earlier stops: A40, D00, D06
  2. 2...c6D10 Slav Defense
  3. 3.Nf3D11 Modern Line
  4. 4...cxd5D13

The position after 4...cxd5

White has brought out the knight on f3; Black the knight on f6. The c-file is fully open.

WhiteBlackMaterial (pawn units)3838Minor pieces developed11Moves spent on pawns33Pawns on d4, e4, d5, e511Squares attacked in the other half44not castlednot castled

Closest boards in other codes

CodeLineDiffers on
D23Queen’s Gambit Acceptedthree squares: c4, d5, c7
A31English Opening: Symmetrical Variation, Anti-Benoni Variationfour squares: c4, c5, d5, d7
A46Indian Defense: Knights Variationfour squares: c2, d5, c7, d7
D02Queen’s Pawn Game: Zukertort Variationfour squares: c2, f6, c7, g8
D03Queen’s Pawn Game: Torre Attackfour squares: c1, c2, g5, c7
D04Queen’s Pawn Game: Colle Systemfour squares: c2, e2, e3, c7
D15Slav Defense: Three Knights Variationfour squares: b1, c3, c4, c6

Where lines continue from here

One named line filed under other codes passes through the position after 4...cxd5. It belongs to D14.

Volume D

  1. 00
  2. 01
  3. 02
  4. 03
  5. 04
  6. 05
  7. 06
  8. 07
  9. 08
  10. 09
  11. 10
  12. 11
  13. 12
  14. 13
  15. 14
  16. 15
  17. 16
  18. 17
  19. 18
  20. 19
  21. 20
  22. 21
  23. 22
  24. 23
  25. 24
  26. 25
  27. 26
  28. 27
  29. 28
  30. 29
  31. 30
  32. 31
  33. 32
  34. 33
  35. 34
  36. 35
  37. 36
  38. 37
  39. 38
  40. 39
  41. 40
  42. 41
  43. 42
  44. 43
  45. 44
  46. 45
  47. 46
  48. 47
  49. 48
  50. 49
  51. 50
  52. 51
  53. 52
  54. 53
  55. 54
  56. 55
  57. 56
  58. 57
  59. 58
  60. 59
  61. 60
  62. 61
  63. 62
  64. 63
  65. 64
  66. 65
  67. 66
  68. 67
  69. 68
  70. 69
  71. 70
  72. 71
  73. 72
  74. 73
  75. 74
  76. 75
  77. 76
  78. 77
  79. 78
  80. 79
  81. 80
  82. 81
  83. 82
  84. 83
  85. 84
  86. 85
  87. 86
  88. 87
  89. 88
  90. 89
  91. 90
  92. 91
  93. 92
  94. 93
  95. 94
  96. 95
  97. 96
  98. 97
  99. 98
  100. 99

Open this line in the finderAll Slav Defense codes