the dorbel daily

Wednesday 10 November 2010

Mochy v. Birkhahn, Game Five.

Mochy v. Martin Birkhahn game Five, Mochy (Red) leads 6-2


1. RED: (6 1) 13/7 8/7
WHITE: (6 4) 24/14
2. RED: (6 2) 24/18 13/11*
13/7, 13/11* is probably slightly better, so that White doesn't have good sixes from the bar.
WHITE: (6 3) bar/22 13/7*
3. RED: (4 3) bar/18*
WHITE: (6 1) bar/24 13/7*
4. RED: (5 3) bar/20 11/8


This looks good, picking up the blot from the 11pt. It's more useful on the 8pt and safer. Mochy might also have tried the more aggresive bar/20, 6/3* or the radical bar/20, 24/21, both of which appear to equal the match play.
WHITE: (6 3) 13/7 8/5*
5. RED: (6 2) bar/23 13/7
WHITE: (6 2) 13/5
6. RED: (5 1) 13/12*/7


Another good play, solid and risk free. The more aggressive 13/12*, 8/3* is however equally good. As the match leader Mochy is trying to keep the lid on the volatility, knowing that anything that smells of gammon will get him cubed, but the double hit is strong here too.
WHITE: (5 4) bar/20 24/20
7. RED: (4 1) 23/22 7/3*
Mochy goes for hitting loose behind the anchor. This might look like an unnecessary risk, but it does help him positionally in two ways. It keeps his last outfield checker and unprimes one of his back men, admittedly at the expense of a lot of shots from the bar for White. What Mochy is doing is taking the risk now rather than next turn, because Red's position will be very brittle if he plays 13/8. Actually 13/8 is slightly better according to the rollout, but the match play is only a very small mistake.
WHITE: Double


Well played by White. A minimal double but Martin alertly seizes his chance. Although he trails by a lot in the race he has all the positional advantages, both 5pts and a four-prime. Also he now has the volatility that he has been waiting for, with shots this turn. I wonder if he would have doubled if Red had made the quiet play? It would still have been correct, but we'll never know.
7. RED: Take
WHITE: (6 4) bar/15
9. RED: (5 4) 13/8 7/3
WHITE: (5 3) 8/3* 6/3
10. RED: (6 3) Can't move
WHITE: (4 2) 8/4 6/4
11. RED: (6 5) Can't move
WHITE: (6 5) 7/1* 6/1
12. RED: (6 3) Can't move
WHITE: (6 1) 15/8
13. RED: (3 1) Can't move
WHITE: (3 2) 24/21 8/6
14. RED: (4 2) bar/23
WHITE: (4 1) 21/20 6/2*
15. RED: (6 3) Can't move
WHITE: (6 1) 20/14 7/6
16. RED: (6 1) Can't move
WHITE: (5 4) 20/15 6/2
17. RED: (4 3) Can't move
WHITE: (3 1) 15/12 14/13
18. RED: (2 1) Can't move
WHITE: (5 1) 20/15 12/11
19. RED: (5 4) Can't move
WHITE: (2 1) 15/12
20. RED: (6 5) Can't move
WHITE: (5 3) 12/9 11/6
21. RED: (3 2) Can't move
WHITE: (6 1) 13/7 6/5
22. RED: (3 2) Can't move
WHITE: (3 2) 9/4
23. RED: (6 6) Can't move
WHITE: (6 3) 7/1 5/2
24. RED: (5 1) Can't move
WHITE: (4 3) 6/2 6/3
25. RED: (5 1) Can't move
WHITE: (6 1) 5/off 5/4
26. RED: (6 5) bar/19 bar/20
WHITE: (5 4) 4/off(2)
27. RED: (5 5) 20/10 19/9
WHITE: (5 5) 4/off(2) 3/off(2)
28. RED: (6 4) 10/4 9/5
WHITE: (5 3) 3/off 2/off
29. RED: (4 1) 8/4 7/6
WHITE: (6 2) 2/off(2)
30. RED: (5 1) 8/3 7/6
WHITE: (2 2) 2/off 1/off(3)

..........and White levels the match at 6-6. Nothing Red could do there after the take, while White played faultlessly throughout and timed his cube perfectly.

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