XGID=-a-ABCBB-------b-bBbbABea-:1:1:1:44:4:6:0:9:10
X:Player 1 O:Player 2

This is a recent position from facebook

Score is X:4 O:6 9 pt.(s) match.
+13-14-15-16-17-18------19-20-21-22-23-24-+
| O O X | | O O X X O O |
| O O X | | O O X O |
| | | O |
| | | O |
| | | O |
| |BAR| |
| | | |
| | | |
| | | X | +---+
| X | | X X X | | 2 |
| X | | X X X X O | +---+
+12-11-10--9--8--7-------6--5--4--3--2--1-+
Pip count X: 153 O: 93 X-O: 4-6/9
Cube: 2, X own cube
X to play 44

--- SoupGate-Win32 v1.05
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On Monday, October 17, 2022 at 2:41:05 PM UTC+1, BlueDice wrote:

XGID=-a-ABCBB-------b-bBbbABea-:1:1:1:44:4:6:0:9:10
X:Player 1 O:Player 2

This is a recent position from facebook

Score is X:4 O:6 9 pt.(s) match.
+13-14-15-16-17-18------19-20-21-22-23-24-+
| O O X | | O O X X O O |
| O O X | | O O X O |
| | | O |
| | | O |
| | | O |
| |BAR| |
| | | |
| | | |
| | | X | +---+
| X | | X X X | | 2 |
| X | | X X X X O | +---+
+12-11-10--9--8--7-------6--5--4--3--2--1-+
Pip count X: 153 O: 93 X-O: 4-6/9
Cube: 2, X own cube
X to play 44

X holds a 2 cube..

--- SoupGate-Win32 v1.05
* Origin: fsxNet Usenet Gateway (21:1/5)

On 10/17/2022 9:41 AM, BlueDice wrote:

XGID=-a-ABCBB-------b-bBbbABea-:1:1:1:44:4:6:0:9:10
X:Player 1 O:Player 2

This is a recent position from facebook

Score is X:4 O:6 9 pt.(s) match.
+13-14-15-16-17-18------19-20-21-22-23-24-+
| O O X | | O O X X O O |
| O O X | | O O X O |
| | | O |
| | | O |
| | | O |
| |BAR| |
| | | |
| | | |
| | | X | +---+
| X | | X X X | | 2 |
| X | | X X X X O | +---+
+12-11-10--9--8--7-------6--5--4--3--2--1-+
Pip count X: 153 O: 93 X-O: 4-6/9
Cube: 2, X own cube
X to play 44

Two things jump out at me in this position. The first, of
course, is that we'd really like to contain O's straggler
since we're so far behind in the pip count. The second is
that O is totally stripped, with a bunch of semi-dead checkers.

X can try to prime, or X can try to attack. Unfortunately,
X can't extend his four-prime to a five-prime with this roll.
I guess 18/6 18/14 is the best priming attempt, but I'm inclined
to attack with 7/3 5/1*. We're happy if O dances, of course,
and even if O enters, there's a good chance she'll be forced to
expose a blot because of her stripped position. For the final
two 4's, I'd try 18/10, preparing to re-cover the bar point.

---
Tim Chow

--- SoupGate-Win32 v1.05
* Origin: fsxNet Usenet Gateway (21:1/5)

On 10/17/2022 9:41 AM, BlueDice wrote:

XGID=-a-ABCBB-------b-bBbbABea-:1:1:1:44:4:6:0:9:10
X:Player 1 O:Player 2

This is a recent position from facebook

Score is X:4 O:6 9 pt.(s) match.
+13-14-15-16-17-18------19-20-21-22-23-24-+
| O O X | | O O X X O O |
| O O X | | O O X O |
| | | O |
| | | O |
| | | O |
| |BAR| |
| | | |
| | | |
| | | X | +---+
| X | | X X X | | 2 |
| X | | X X X X O | +---+
+12-11-10--9--8--7-------6--5--4--3--2--1-+
Pip count X: 153 O: 93 X-O: 4-6/9
Cube: 2, X own cube
X to play 44

X has two ways to win this one. Contain O's straggler or wait for O to
crunch and expose a shot (she's well on her way with that ugly stack on
the deuce point).

The eighteen point isn't doing much for X, so play off of that. I prefer
18/6 18/14 to bring another builder into range and also to keep a guard
for outfield control.

--- SoupGate-Win32 v1.05
* Origin: fsxNet Usenet Gateway (21:1/5)

On Monday, October 17, 2022 at 2:41:05 PM UTC+1, BlueDice wrote:

XGID=-a-ABCBB-------b-bBbbABea-:1:1:1:44:4:6:0:9:10
X:Player 1 O:Player 2

This is a recent position from facebook

Score is X:4 O:6 9 pt.(s) match.
+13-14-15-16-17-18------19-20-21-22-23-24-+
| O O X | | O O X X O O |
| O O X | | O O X O |
| | | O |
| | | O |
| | | O |
| |BAR| |
| | | |
| | | |
| | | X | +---+
| X | | X X X | | 2 |
| X | | X X X X O | +---+
+12-11-10--9--8--7-------6--5--4--3--2--1-+
Pip count X: 153 O: 93 X-O: 4-6/9
Cube: 2, X own cube
X to play 44

Solution
=======
There's not much in the top 3 plays (XGR++) at 5 away - 3 away...
However, the #1 play here is a clear blunder for an unlimited match, see variant.
I believe that X is playing relatively quietly to protect his potential pending efficient re-cube AtS
where he kills O's gammons but not his own.
I thought that this was a good example of cube dependant checker play.


1. XG Roller++ 18/14 18/6 eq:+0.950
Player: 66.48% (G:19.82% B:0.91%)
Opponent: 33.52% (G:17.39% B:0.46%)

2. XG Roller++ 22/14(2) eq:+0.929 (-0.020)
Player: 65.51% (G:16.24% B:0.61%)
Opponent: 34.49% (G:18.36% B:0.25%)

3. XG Roller++ 18/14(2) 7/3 5/1* eq:+0.928 (-0.021)
Player: 66.66% (G:20.98% B:0.73%)
Opponent: 33.34% (G:15.21% B:0.53%)

4. 3-ply 18/10(2) eq:+0.896 (-0.053)
Player: 65.18% (G:17.20% B:0.92%)
Opponent: 34.82% (G:15.81% B:0.23%)

Variant
======
Score is X:0 O:0. Unlimited Game
Cube: 2, X own cube
X to play 44

1. XG Roller++ 18/14(2) 7/3 5/1* eq:+0.701
Player: 66.36% (G:21.12% B:0.77%)
Opponent: 33.64% (G:14.82% B:0.49%)

2. XG Roller++ 22/14 7/3 5/1* eq:+0.639 (-0.062)
Player: 65.37% (G:21.38% B:0.87%)
Opponent: 34.63% (G:16.94% B:0.68%)

3. XG Roller++ 18/10 7/3 5/1* eq:+0.626 (-0.075)
Player: 64.69% (G:21.38% B:0.98%)
Opponent: 35.31% (G:17.45% B:1.02%)

4. XG Roller++ 18/14 18/6 eq:+0.568 (-0.133)
Player: 66.36% (G:19.84% B:0.92%)
Opponent: 33.64% (G:17.64% B:0.45%)
--
BD

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