In this section I show examples about Gnu's mistaking at doubling decisions. All I do say here depends on my meaning about that subject - of course.

An indirect 4-pt-prime is a barrier, which is hard to get over.

Allways keep in mind: The player who gives the double is on roll.

White does not have too much chances to close the 18-pt, but even he does, White's checkers on 13pt and 9pt give White more than 37 pips <time>.

This is a double on White's side and hardly a take.

Gnu's tutor states: No Double - Take.

My meaning:

White does have a solid double - Black should pass.

Facts:

(1)

White does lead 17 pips in the race plus 8.5 pips calculating for being on roll.

(2)

Black does not control the sector 2+1 Pt. This does give White the possiublillity to play bad rolls to his 2pt and 1pt.

(3)

White does have some hit-and-close-potential which could lead to a gammon.

Weiß doppelt. Das ist korrekt. Weiß liegt im Rennen vorn, hat die Chance, den offenen Stein auf dem 10Pt zu schlagen und seinen 6pt entweder zu schließen oder seinen einzelnen Stein von dort weg zu ziehen.

Schwarz hat ein <Loch> auf dem 2pt und die meisten seiner Steine stehen auf den hohen Punkten in seinem Innenfeld. Schwarz benötigt mindestens eine 6+6, das Rennen zu gewinnen.

Pass.

Gnu's tutor: "Too good for a double - just play for a gammon".

My meaning: White's position is not too bad. White has a good timing. White can wait for a shot, which will happen soon, if Black does not get a 6+1, 1+1 or a hit-and-pass-roll (1+2, 1+3, 1+4, 6+2, 6+3, 6+4) - a total of <15 rolls out from 36>. There is a Gammon-Chance for White, but I as white would cash the point or be happy if my opponent goes for the chance.

As Black I would take this double and re-double immediately, if trailing 5:1 in a match to 7.

Gnu's tutor: "Too early for a double"

My meaning:

There are some shots on White's side, which could lead to a gammon: 6+2, 6+3, 6+4, 4+3, 4+2, 3.2, , 4+4, 3+3  and 2+2 will hit and close on the 4Pt. I would defenitely double now before <loosing the market>.

It is a very close take for black because of the gammon-chance.