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The correct play is to move two men from White’s 6 point to White’s 5 and 4 points. Although you could have safely entered your men from your bar point, by maintaining it you force Black to break his board with the rolls of 6 and 1, 6 and 2, 6 and 3, 6 and 4, and 6 and 5, which, had you moved your men from your bar point, would have permitted Black to escape with a man and thus be able to maintain his closed board.

It’s true that by not bringing your men into your board you have created the possibility of having to leave a blot on your next roll. However, since the only rolls that will cause this to occur are 6 and 5 or double 5s (11 to 1 against), the possible gain certainly seems to justify this small risk.

Rollout  Tom Keith 2013

Money play Black owns 2-cube White rolls 2-1 1296 games with VR Checker play: 3-ply Cube play: XG Roller

XGID=-cBBBBEB-----------bbbbbb-:1:-1:1:21:0:0:0:0

	2-1:		Game	G	BG	Equity
1	6/5, 6/4	W L	.9396 .0604	.3154 .0001	.0197 .0000	+1.1928
2	6/3	W L	.9311 .0689	.3021 .0002	.0161 .0000	+1.1551	(0.0377)

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List of Positions from Better Backgammon

Better Backgammon (1974), by Tim Holland