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**Formula A** A formula to convert cubeless equity (E) into actual equity (X) when opponent owns the cube: X = 2 * ((((E + 1) / 2) -.14) / .86) -1 Ex. E = .570 X = 2 * ((((.57 + 1) / 2) -.14) / .86) -1 = 0.500 **Formula B** A formula to convert cubeless equity (E) into actual equity (Y) when the cube is in the center: Y = 2 * ((((E + 1) / 2) - .165) / .67) - 1 Ex. E = .570 Y = 2 * ((((.57 + 1) / 2) - .165) / .67) - 1 = 0.851 *cubeless equity (E) > .570* the cost of failing to double: 2*X - 1 Ex. E = .600 2 * .535 - 1 = 0.070 *cubeless equity (E) < .390* the cost of doubling: Y-2*X Ex. E = .360 .537 - 2*.256 = 0.026 Based on "Doubling Theory" -- Kit Woolsey |