I have used 3 workers, 1 i7 CPU (around same hashing power what one 750Ti when N=17) and one rig with Nvidia 3x750Ti and one rig with Radeon (4x r7 240 4G)
Radeon rig reported 4 blocks (possible also Nvidia rig but this I,m not sure because cudaminer poor information on the screen) but in pool statistics nothing, not founded, not orphans, just 0.
we have 12 blocks
8 orphan 4 confirmed
but for every block i get this on the cnsole.log
2015-07-04 05:23:58 [Pool] [yacoin] (Thread 2) We thought a block was found but it was rejected by the daemon, share data: {"job":"d8","ip":"91.154.39.160","port":3032,"worker":"Y16jSqBD95tCGBWurYfdchFPSy6PKaPWp9","height":1125180,"blockReward":76590000,"difficulty":4,"shareDiff":"505.45273988","blockDiff":79.250259968,"blockDiffActual":0.001209263,"blockHash":"77d3fdb27b8c99fa73616f550bacce683527776dc5beb281519e94700dfa5bab"}
I'm try to understand why
i' so sory for this
i reallly whant this to star working correctly, because yac need some pools running