| Books |
Position 27, page 65
From Backgammon for Blood, by Bruce Becker
From Backgammon for Blood, by Bruce Becker
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| White to play 4-1. |
The 4-1 opener is treated the same way as 2-1: move a man from B12 to W9 and a man from W6 to W5.
There are nineteen ways that one or the other of my two blots can be hit (the fifteen ways to hit the W5, plus 5-3, 3-5, 6-2, and 2-6); only one (a 4-4 throw) can hit both. Again, six of these throws would keep my opponent from making an otherwise strong move. And there are now twenty-nine ways in which I can cover the W5 blot if I am not hit. Therefore, here too the move is very well worth the risk.
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Rollout
 Tom Keith 2013 |
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Money play Centered cube White rolls 4-1 1296 games with VR Checker play: 3-ply Cube play: XG Roller |
XGID=-b----E-C---eE---c-e----B-:0:0:1:41:0:0:0:0
| 4-1: | Game | G | BG | Equity | ||||
| 1 | 24/23, 13/9 |
W L |
.4979 .5021 |
.1442 .1391 |
.0059 .0059 | −0.0080 |
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| 2 | 13/9, 6/5 |
W L |
.4996 .5004 |
.1428 .1481 |
.0065 .0091 | −0.0090 | (0.0010) |
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| 3 | 24/23, 24/20 |
W L |
.4890 .5110 |
.1284 .1386 |
.0060 .0059 | −0.0465 | (0.0385) | |
| 4 | 13/8 |
W L |
.4877 .5123 |
.1381 .1493 |
.0069 .0061 | −0.0563 | (0.0483) | |
| 5 | 24/20, 6/5 |
W L |
.4892 .5108 |
.1279 .1478 |
.0060 .0071 | −0.0592 | (0.0512) |
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