London_double_in_double_out.md

London dartboard double-in, double-out checkouts

Checkout tables for double-in, double-out darts games with the London dartboard

Introduction

This part of the darts > Tables > Markdown project provides checkout tables for darts games with the London dartboard played in double-in, double-out mode. These tables are valid for games where the first (in) and last (out) darts must land on a double.

In double-out games with the London dartboard, the last dart can score between 2 and 50 points. The last two darts can reach 110 points, and 170 points can be scored with the last three. After a double has been thrown, the extensive any-in, double-out checkout tables apply to these scores.

As for double-in, double-out checkouts, the following can be observed. Darts games commonly require players to score x01 points, where x is an integer. The following table shows the required number of darts to reach such scores in London dartboard double-in, double-out games. In addition, the corresponding number of possible checkouts is shown.

Score	Darts	Checkouts
101	3	98
201	4	14
301	6	2,544
401	8	380,228
501	9	574
601	11	319,586
701	13	64,693,283
801	14	4,184
901	16	12,139,768
1001	18	3,400,574,560

The most exciting games will be those with relatively few possible checkouts. Checkout tables for these scores are given below. Additional tables can be generated using the darts toolbox of the darts project.

201

Score	1	2	3	4	#
201	*	*	*	*	14
	D25	T20	T19	D17	2
	D25	T20	T17	D20	2
	D25	T19	T18	D20	2
	D25	T17	D25	D25	2
	D20	T20	T17	D25	2
	D20	T19	T18	D25	2
	D17	T20	T19	D25	2

This table was generated using the command:

darts checkouts -i double 201 201

501

Score	1	2	3	4	5	6	7	8	9	#
501	*	*	*	*	*	*	*	*	*	574
	D25	T20	T20	T20	T20	T20	T20	T19	D17	7
	D25	T20	T20	T20	T20	T20	T20	T17	D20	7
	D25	T20	T20	T20	T20	T20	T19	T18	D20	42
	D25	T20	T20	T20	T20	T20	T17	D25	D25	42
	D25	T20	T20	T20	T20	T19	T19	T19	D20	35
	D25	T20	T20	T20	T20	T19	T18	D25	D25	210
	D25	T20	T20	T20	T19	T19	T19	D25	D25	140
	D20	T20	T20	T20	T20	T20	T20	T17	D25	7
	D20	T20	T20	T20	T20	T20	T19	T18	D25	42
	D20	T20	T20	T20	T20	T19	T19	T19	D25	35
	D17	T20	T20	T20	T20	T20	T20	T19	D25	7

This table was generated using the command:

darts checkouts -i double 501 501

801

Score	1	2	3	4	5	6	7	8	9	10	11	12	13	14	#
801	*	*	*	*	*	*	*	*	*	*	*	*	*	*	4,184
	D25	T20	T20	T20	T20	T20	T20	T20	T20	T20	T20	T20	T19	D17	12
	D25	T20	T20	T20	T20	T20	T20	T20	T20	T20	T20	T20	T17	D20	12
	D25	T20	T20	T20	T20	T20	T20	T20	T20	T20	T20	T19	T18	D20	132
	D25	T20	T20	T20	T20	T20	T20	T20	T20	T20	T20	T17	D25	D25	132
	D25	T20	T20	T20	T20	T20	T20	T20	T20	T20	T19	T19	T19	D20	220
	D25	T20	T20	T20	T20	T20	T20	T20	T20	T20	T19	T18	D25	D25	1,320
	D25	T20	T20	T20	T20	T20	T20	T20	T20	T19	T19	T19	D25	D25	1,980
	D20	T20	T20	T20	T20	T20	T20	T20	T20	T20	T20	T20	T17	D25	12
	D20	T20	T20	T20	T20	T20	T20	T20	T20	T20	T20	T19	T18	D25	132
	D20	T20	T20	T20	T20	T20	T20	T20	T20	T20	T19	T19	T19	D25	220
	D17	T20	T20	T20	T20	T20	T20	T20	T20	T20	T20	T20	T19	D25	12

This table was generated using the command:

darts checkouts -i double 801 801

License

Copyright © 2023 Maurits Silvis

This source code package is subject to the terms and conditions defined in the GNU General Public License v3.0, which can be found in the file LICENSE.md, or later.