diff --git a/src/pow.cpp b/src/pow.cpp
index 1a4e82a21..d2d71e1f4 100644
--- a/src/pow.cpp
+++ b/src/pow.cpp
@@ -95,9 +95,36 @@ bnTarget = RT_CST_RST (bnTarget, ts, cw, numerator, denominator, W, T, past);
 #define T ASSETCHAINS_BLOCKTIME
 #define K ((int64_t)1000000)
 
-arith_uint256 oldRT_CST_RST(int32_t height,uint32_t nTime,arith_uint256 bnTarget,uint32_t *ts,arith_uint256 *ct,int32_t numerator,int32_t denominator,int32_t W,int32_t past)
+arith_uint256 RT_CST_RST_outer(int32_t height,uint32_t nTime,arith_uint256 bnTarget,uint32_t *ts,arith_uint256 *ct,int32_t numerator,int32_t denominator,int32_t W,int32_t past)
 {
-    
+    int64_t outerK;
+    if ( (ts[0] - ts[W]) < (T * numerator)/denominator )
+    {
+        outerK = (K * (nTime-ts[0]) * (ts[0]-ts[W]) * denominator) / (numerator * (T * T));
+        fprintf(stderr,"ht.%d initial outerK.%lld %d * %d * %d / %d\n",height,(long long)outerK,(nTime-ts[0]),(ts[0]-ts[W]),denominator,numerator);
+        if ( outerK < K )
+        {
+            bnTarget = ct[0] / arith_uint256(K);
+            bnTarget *= arith_uint256(outerK);
+        }
+    }
+    return(bnTarget);
+}
+
+arith_uint256 RT_CST_RST_inner(int32_t height,uint32_t nTime,arith_uint256 bnTarget,uint32_t *ts,arith_uint256 *ct,int32_t numerator,int32_t denominator,int32_t W,int32_t past,int32_t outeri)
+{
+    int64_t innerK; int32_t i;
+    if ( (ts[0] - ts[outeri+W]) < (outeri+W)*T )
+    {
+        bnTarget = ct[0];
+        for (i=1; i<W; i++)
+            bnTarget += ct[i];
+        bnTarget /= arith_uint256(W * K);
+        innerK = (K * (nTime-ts[0]) * (ts[0]-ts[W])) / (W * T * T);
+        fprintf(stderr,"ht.%d made it to i == 0, innerK %lld (%d * %d) %u - %u W.%d\n",height,(long long)innerK,(nTime-ts[0]),(ts[0]-ts[W]),ts[0],ts[W],W);
+        bnTarget *= arith_uint256(innerK);
+    }
+    return(bnTarget);
 }
 
 arith_uint256 oldRT_CST_RST(int32_t height,uint32_t nTime,arith_uint256 bnTarget,uint32_t *ts,arith_uint256 *ct,int32_t numerator,int32_t denominator,int32_t W,int32_t past)