{
  "pack_format_version": 3,
  "slug": "queens-indian-essentials-black",
  "title": "The Queen's Indian Defence: Essentials (Black Repertoire)",
  "author_name": "Theo van Stratum",
  "version": 1,
  "description": "A Black repertoire built around the Queen's Indian Defence (1.d4 Nf6 2.c4 e6 3.Nf3 b6). Includes meeting the Classical Fianchetto (4.g3), the Petrosian Variation (4.a3) that rules out ...Bb4 ideas, 4.Nc3 Bb4 (borrowing the Nimzo-Indian's pin), and the quiet, solid 4.e3.",
  "content_types": [
    "lines"
  ],
  "price_cents": null,
  "lines": [
    {
      "name": "Queen's Indian Defence: Black's Classical Fianchetto",
      "side": "black",
      "eco": "E17",
      "moves": [
        "d2d4",
        "g8f6",
        "c2c4",
        "e7e6",
        "g1f3",
        "b7b6",
        "g2g3",
        "c8b7",
        "f1g2",
        "f8e7",
        "b1c3",
        "e8g8",
        "e1g1",
        "d7d5",
        "c4d5",
        "f6d5",
        "d1c2",
        "d5c3",
        "c2c3",
        "c7c5"
      ],
      "annotations": {
        "5": {
          "note": "Preparing the queen's bishop fianchetto -- the defining idea of the Queen's Indian.",
          "format": "markdown"
        },
        "7": {
          "note": "Completing the fianchetto, eyeing e4 along the long diagonal.",
          "format": "markdown"
        },
        "9": {
          "note": "Simple, solid development, keeping ...d5 and ...c5 both available.",
          "format": "markdown"
        },
        "11": {
          "note": "Castling before committing the centre.",
          "format": "markdown"
        },
        "13": {
          "note": "Challenging the centre now that development allows it.",
          "format": "markdown"
        },
        "15": {
          "note": "Recapturing toward the centre with the knight, landing it actively.",
          "format": "markdown"
        },
        "17": {
          "note": "Trading off the centralised knight for White's own, rather than retreating it and losing time.",
          "format": "markdown"
        },
        "19": {
          "note": "Striking at the centre a second time now that the knights are off.",
          "format": "markdown"
        }
      },
      "variations": [
        {
          "branch_ply": 9,
          "moves": [
            "b7a6",
            "b2b3",
            "f8e7",
            "c1b2",
            "e8g8"
          ],
          "annotations": {
            "0": {
              "note": "A sharper alternative to the quiet ...Be7: redeploying the bishop to eye the undefended c4-pawn immediately.",
              "format": "markdown"
            },
            "2": {
              "note": "Completing development now that the pressure on c4 has been met.",
              "format": "markdown"
            },
            "4": {
              "note": "Castling into safety.",
              "format": "markdown"
            }
          }
        }
      ]
    },
    {
      "name": "Queen's Indian Defence: Black Meets the Petrosian",
      "side": "black",
      "eco": "E12",
      "moves": [
        "d2d4",
        "g8f6",
        "c2c4",
        "e7e6",
        "g1f3",
        "b7b6",
        "a2a3",
        "c8b7",
        "b1c3",
        "d7d5",
        "c4d5",
        "f6d5",
        "e2e3",
        "f8e7",
        "d1c2",
        "e8g8",
        "f1d3",
        "c7c5",
        "e1g1",
        "b8c6"
      ],
      "annotations": {
        "5": {
          "note": "The same fianchetto idea as always, met here by White's Petrosian treatment.",
          "format": "markdown"
        },
        "7": {
          "note": "Completing the fianchetto.",
          "format": "markdown"
        },
        "9": {
          "note": "Challenging the centre directly.",
          "format": "markdown"
        },
        "11": {
          "note": "Recapturing toward the centre.",
          "format": "markdown"
        },
        "13": {
          "note": "Simple development.",
          "format": "markdown"
        },
        "15": {
          "note": "Castling into safety.",
          "format": "markdown"
        },
        "17": {
          "note": "Striking at the centre a second time.",
          "format": "markdown"
        },
        "19": {
          "note": "Completing development and adding pressure to d4.",
          "format": "markdown"
        }
      },
      "variations": [
        {
          "branch_ply": 9,
          "moves": [
            "f8e7",
            "e2e3",
            "e8g8",
            "f1d3",
            "d7d5"
          ],
          "annotations": {
            "0": {
              "note": "A quieter approach than grabbing the centre immediately -- completing development first and deciding on the structure afterwards.",
              "format": "markdown"
            },
            "2": {
              "note": "Castling into safety.",
              "format": "markdown"
            },
            "4": {
              "note": "Only now challenging the centre, with development complete on both sides.",
              "format": "markdown"
            }
          }
        }
      ]
    },
    {
      "name": "Queen's Indian Defence: Black's 4.Nc3 Bb4",
      "side": "black",
      "eco": "E16",
      "moves": [
        "d2d4",
        "g8f6",
        "c2c4",
        "e7e6",
        "g1f3",
        "b7b6",
        "b1c3",
        "f8b4",
        "e2e3",
        "c8b7",
        "f1d3",
        "e8g8",
        "e1g1",
        "d7d5",
        "c4d5",
        "f6d5",
        "d1c2",
        "d5c3",
        "b2c3",
        "b4e7"
      ],
      "annotations": {
        "5": {
          "note": "Preparing the fianchetto, as always in the Queen's Indian.",
          "format": "markdown"
        },
        "7": {
          "note": "Pinning the knight on c3 immediately, borrowing the idea straight from the Nimzo-Indian.",
          "format": "markdown"
        },
        "9": {
          "note": "Completing the second fianchetto -- both bishops now bear down the long diagonals.",
          "format": "markdown"
        },
        "11": {
          "note": "Castling before resolving the central tension.",
          "format": "markdown"
        },
        "13": {
          "note": "Challenging the centre.",
          "format": "markdown"
        },
        "15": {
          "note": "Recapturing toward the centre with the knight.",
          "format": "markdown"
        },
        "17": {
          "note": "Trading the centralised knight for White's own.",
          "format": "markdown"
        },
        "19": {
          "note": "Retreating the bishop now that the recapture on c3 attacks it directly -- there's no good square that keeps it more active.",
          "format": "markdown"
        }
      },
      "variations": [
        {
          "branch_ply": 8,
          "moves": [
            "c1g5",
            "c8b7",
            "e2e3",
            "h7h6",
            "g5h4"
          ],
          "annotations": {
            "1": {
              "note": "Completing the fianchetto regardless, since the pressure on f6 isn't urgent yet.",
              "format": "markdown"
            },
            "3": {
              "note": "Asking the bishop the question before it can cause any real trouble.",
              "format": "markdown"
            },
            "4": {
              "note": "Retreating rather than trading the bishop off for nothing -- it keeps an eye on the long diagonal and the pressure on f6.",
              "format": "markdown"
            }
          }
        }
      ]
    },
    {
      "name": "Queen's Indian Defence: Black vs the Quiet 4.e3",
      "side": "black",
      "eco": "E14",
      "moves": [
        "d2d4",
        "g8f6",
        "c2c4",
        "e7e6",
        "g1f3",
        "b7b6",
        "e2e3",
        "c8b7",
        "f1d3",
        "f8e7",
        "e1g1",
        "e8g8",
        "b1c3",
        "d7d5",
        "b2b3",
        "b8d7",
        "c1b2",
        "c7c5",
        "d1e2",
        "d8c7"
      ],
      "annotations": {
        "5": {
          "note": "The usual fianchetto preparation.",
          "format": "markdown"
        },
        "7": {
          "note": "Completing the fianchetto.",
          "format": "markdown"
        },
        "9": {
          "note": "Simple, solid development.",
          "format": "markdown"
        },
        "11": {
          "note": "Castling before committing the centre.",
          "format": "markdown"
        },
        "13": {
          "note": "Challenging the centre now that development allows it.",
          "format": "markdown"
        },
        "15": {
          "note": "Developing the other knight and preparing ...c5.",
          "format": "markdown"
        },
        "17": {
          "note": "Striking at the centre now that the knight supports it.",
          "format": "markdown"
        },
        "19": {
          "note": "Repositioning the queen, adding support along the c-file and eyeing a future ...e5.",
          "format": "markdown"
        }
      },
      "variations": [
        {
          "branch_ply": 9,
          "moves": [
            "f8b4",
            "c1d2",
            "b4e7",
            "e1g1",
            "d7d5"
          ],
          "annotations": {
            "0": {
              "note": "An immediate check instead of the quiet ...Be7 -- it doesn't pin anything yet since Nc3 hasn't been played, but it still costs White a tempo.",
              "format": "markdown"
            },
            "2": {
              "note": "Retreating immediately -- the bishop on d2 attacks b4 directly, so there's no point lingering there.",
              "format": "markdown"
            },
            "4": {
              "note": "Challenging the centre now that both sides have castled.",
              "format": "markdown"
            }
          }
        }
      ]
    }
  ],
  "woodpecker_sets": [],
  "endgame_positions": []
}