We have fabricated Josephson d-wave/s-wave junctions (ds-JJs) between the d-wave superconductor YBa2Cu3O7-x (YBCO) and the s-wave MoRe – alloy superconductor on the buffered MgO substrates, using thin Au film as a normal conducting barrier and as protector against oxygen diffusion. I(V)-characteristics of the ds-JJs demonstrate twice larger critical current along the [100] axis of the YBCO film compared to similarly-oriented ds-JJs made with a Nb top electrode. The characteristic voltage IcRn of the YBCO-Au-MoRe ds-JJs is 750 μV at 4.2 K. YBCOAuMoRe ds-JJs that are oriented along the [100] axis of the YBCO film exhibit a 200-times higher critical current than similar ds-JJs oriented along the [110] axis of the same YBCO film. Different layouts of p-loops based on the novel ds-JJs were arranged in various mutual coupling configurations. Spontaneously-induced magnetic fluxes of the π-loops were investigated using scanning SQUID microscopy. Magnetic states of the π-loops were manipulated by currents in integrated bias lines. Higher flux states up to ± 2.5 π0 were induced and stabilized in the π-loops. Crossover temperature between thermally activated and quantum tunneling switching processes was estimated.