### Solutions to your endgames Einstein forum

11 replies. Last post: 2012-08-21

• zwack at 2012-08-13

I’ve been trying to decide what to do with Sybil’s endgame databases. But until I’ve got that figured out, I thought I’d open them up to anyone interested. If you’ve got a position from a game here on LG that you’d like to see the solution to, post the URL to the position (like, say, http://www.littlegolem.net/jsp/game/game.jsp?gid=1395745&nmove=61 ) up in this forum and I’ll ask Sybil to reply with the winning chances (given perfect play) resulting from each possible move.

Sybil can handle any position with 7 pieces or fewer. Please no games still in progress...

• Ingo Althofer at 2012-08-14

Did I make a wrong move here?
http://www.littlegolem.net/jsp/forum/topic2.jsp?forum=140&topic=176

Ingo.

• lorentz at 2012-08-14

I can answer the question. It is “yes” but probably not where you think. :)

• Ingo Althofer at 2012-08-14

Strange.

Here is the position I mean:
http://www.littlegolem.net/jsp/game/game.jsp?gid=1443529&nmove=48

Ingo.

• YHW at 2012-08-14

This is a chance of 2/3 for capturing the 3 as well as 2/9 (11,1%) for both other moves, no wrong move here, I think, how close am I to the perfect chances?

• YHW at 2012-08-14

Sorry, I meant 2/9 (22,2%)....

• sybil_c at 2012-08-14

Spot on, YHW. Blue wins 2/3 of the time he takes the 3 and 2/9 of the time he doesn’t.

• YHW at 2012-08-16

That was not too difficult, just a maximum of 2 moves to win that game, but let’s try a 7-stone-situation, what about this one:

http://www.littlegolem.net/jsp/game/game.jsp?gid=1465918&nmove=159

Where to go with what stone?
In retrospective, I think, it would have been better to move the red one in diagonal direction...?!

• sybil_c at 2012-08-16

Red chances of winning after each of the following moves:

1/c2-d2 — 27.6%
1/c2xc3 — 44.6%
1/c2-b3 — 45.4%
5/b3xc3 — 45.5%
5/b3-b4 — 30.1%
5/b3xc4 — 36.5%

Pretty close, either way.

• YHW at 2012-08-17

So I chose the worst of the three meaningful opportunities ;) Thanks !

• Hjallti at 2012-08-21

#1465918 Mirko Rahn vs. YHW
Move: 159