itsutsu

種目 / 穴落とし / 規則

穴落とし

One square is dead: nothing can land on it or count through it.

Our version of the dead-square four-in-a-row variant.

Connect Fourに着想を得た版です。名称は権利者に帰属し、ここに記すのは当サイト独自の規則です。

別名はBlackhole Four in a Row。

目的

  • Be the first to make a line: 4 or more in a row wins.

  • A square board of 7, 9, 10 lines; 7×7 by default.
  • One square, chosen at random when the game starts, is dead: nothing can land there and no line runs through.

手順

  • Players take turns placing one stone on an empty point.
  • A stone played anywhere in a column falls to the lowest empty point in it.
  • A full board with no line is a draw.

細則

  • Either colour may open, or the first stone may be drawn by lot.
  • The threat reading, hints and the chance-of-winning bar apply.
  • 7×7 or 9×9. The hole is never on the bottom row.

穴落としで遊ぶ →ここでの穴落としの全対局