On Wed, Mar 20, 2019 at 11:40:41AM +0100, ?ystein Sch?nning-Johansen wrote:
> I managed to calculate the gammon saving probability of the posted position > in a few minutes using about 15GB of memory. (I also have a slower version > of the tool that uses sparse matrices to store the probabilities, but I did > not try that today) > > oystein@LinuxGPU4:~/octopus/twoside$ ./lopsided --mode=gammonsave > 2000036300001 2231 > #off: 0 board: 2----3|63----|1-----|----- > chk(bb): x----x|xx----|x-----|----- back: 13 #out: 10 #cross: 26 > #off: 7 board: 2231--|------|------|----- > chk(bb): xxxx--|------|------|----- back: 4 #out: 0 #cross: 8 > Cubeless prob. of saving gammon: 0.129424 This is not directly comparable with the numbers below since your number is before the roll. Can you compute it from the other side (probability of winning a gammon) for the first 2 or 3 choices of playing a 61 roll ? > > 1. Cubeful 2-ply 13/6 Eq.: -2.201 > > 0.000 0.000 0.000 - 1.000 0.913 0.000 > > 2-ply cubeful prune [world class] > > 2. Cubeful 2-ply 8/2 7/6 Eq.: -2.204 (-0.003) > > 0.000 0.000 0.000 - 1.000 0.915 0.000 > > 2-ply cubeful prune [world class] > > 3. Cubeful 2-ply 7/6 7/1 Eq.: -2.213 (-0.013) > > 0.000 0.000 0.000 - 1.000 0.923 0.000 > > 2-ply cubeful prune [world class] > > 4. Cubeful 2-ply 13/12 8/2 Eq.: -2.234 (-0.034) > > 0.000 0.000 0.000 - 1.000 0.939 0.000 > > 2-ply cubeful prune [world class] > > 5. Cubeful 2-ply 13/12 7/1 Eq.: -2.240 (-0.039) > > 0.000 0.000 0.000 - 1.000 0.943 0.000 > > 2-ply cubeful prune [world class] > > 6. Cubeful 2-ply 13/7 6/5 Eq.: -2.294 (-0.093) > > 0.000 0.000 0.000 - 1.000 0.984 0.000 > > 2-ply cubeful prune [world class] _______________________________________________ Bug-gnubg mailing list [email protected] https://lists.gnu.org/mailman/listinfo/bug-gnubg
