> > Author could not solve 19x19, just showed 277 <= MSP(19) <= 281. > But Ryuhei Miyashiro reported he got the result MSP(19) was 277 by > using CPLEX(commercial solver) for 40days calculations. > > Hiroshi Yamashita > Thanks for the info. I will set it to 278 and if once Suzie crashes due to an overflow I will blame you :-). Chrilly