diff --git a/dist/Ethereal8.22.zip b/dist/Ethereal8.22.zip
deleted file mode 100644
index 1654f312..00000000
Binary files a/dist/Ethereal8.22.zip and /dev/null differ
diff --git a/dist/Ethereal8.23.zip b/dist/Ethereal8.23.zip
new file mode 100644
index 00000000..a08a85f8
Binary files /dev/null and b/dist/Ethereal8.23.zip differ
diff --git a/src/search.c b/src/search.c
index bb044b94..050c92dc 100644
--- a/src/search.c
+++ b/src/search.c
@@ -346,6 +346,26 @@ int alphaBetaSearch(PVariation * pv, Board * board, int alpha, int beta,
         optimal = eval + depth * 1.25 * PawnValue;
     }
     
+    // Node Razoring at expected ALLNODEs
+    if (USE_RAZORING
+        && nodeType != PVNODE
+        && !inCheck
+        && depth <= 4
+        && !tableIsTactical
+        && hasNonPawnMaterial(board, board->turn)
+        && eval + RazorMargins[depth] < alpha){
+            
+            
+        if (depth <= 1)
+            return quiescenceSearch(board, alpha, beta, height);
+        
+        value = quiescenceSearch(board, alpha - RazorMargins[depth],
+                                beta - RazorMargins[depth], height);
+                                
+        if (value + RazorMargins[depth] < alpha)
+            return value;
+    }
+    
     // Static null move pruning
     if (USE_STATIC_NULL_PRUNING
         && depth <= 3
@@ -413,17 +433,6 @@ int alphaBetaSearch(PVariation * pv, Board * board, int alpha, int beta,
             hist = getHistoryScore(History, currentMove, board->turn, 128);
         }
         
-        // Late Move Pruning
-        if (USE_LATE_MOVE_PRUNING
-            && nodeType != PVNODE
-            && played >= 1
-            && !inCheck
-            && isQuiet
-            && depth < 6
-            && quiets > LateMovePruningCounts[depth]
-            && hist < 32)
-            continue;
-        
         // Use futility pruning
         if (USE_FUTILITY_PRUNING
             && nodeType != PVNODE
@@ -441,6 +450,20 @@ int alphaBetaSearch(PVariation * pv, Board * board, int alpha, int beta,
             continue;
         }
         
+        // Late Move Pruning
+        if (USE_LATE_MOVE_PRUNING
+            && nodeType != PVNODE
+            && played >= 1
+            && !inCheck
+            && isQuiet
+            && depth <= 8
+            && quiets > LateMovePruningCounts[depth]
+            && isNotInCheck(board, board->turn)){
+        
+            revertMove(board, currentMove, undo);
+            continue;
+        }
+        
         // Update counter of moves actually played
         played += 1;
     
@@ -658,4 +681,11 @@ int moveWasTactical(Undo * undo, uint16_t move){
     return undo->capturePiece != EMPTY
         || MoveType(move) == PROMOTION_MOVE
         || MoveType(move) == ENPASS_MOVE;
+}
+
+int hasNonPawnMaterial(Board * board, int turn){
+    uint64_t friendly = board->colours[turn];
+    uint64_t kings = board->pieces[5];
+    uint64_t pawns = board->pieces[0];
+    return (friendly & (kings | pawns)) != friendly;
 }
\ No newline at end of file
diff --git a/src/search.h b/src/search.h
index 694aa1f7..4b30dd3a 100644
--- a/src/search.h
+++ b/src/search.h
@@ -44,7 +44,11 @@ int moveIsTactical(Board * board, uint16_t move);
 
 int moveWasTactical(Undo * undo, uint16_t move);
 
-static const int LateMovePruningCounts[6] = {0, 6, 11, 15, 20, 25}; 
+int hasNonPawnMaterial(Board * board, int turn);
+
+static const int LateMovePruningCounts[] = {0, 6, 9, 14, 21, 30, 41, 54, 69};
+
+static const int RazorMargins[] = {0, 450, 480, 520, 580};
 
 #define USE_STATIC_NULL_PRUNING             (1)
 #define USE_FUTILITY_PRUNING                (1)
@@ -53,5 +57,6 @@ static const int LateMovePruningCounts[6] = {0, 6, 11, 15, 20, 25};
 #define USE_INTERNAL_ITERATIVE_DEEPENING    (1)
 #define USE_TRANSPOSITION_TABLE             (1)
 #define USE_LATE_MOVE_PRUNING               (1)
+#define USE_RAZORING                        (1)
 
 #endif
\ No newline at end of file
diff --git a/src/uci.c b/src/uci.c
index 41661e25..fb48387b 100644
--- a/src/uci.c
+++ b/src/uci.c
@@ -82,7 +82,7 @@ int main(){
            http://wbec-ridderkerk.nl/html/UCIProtocol.html */
             
         if (stringEquals(str, "uci")){
-            printf("id name Ethereal 8.22\n");
+            printf("id name Ethereal 8.23\n");
             printf("id author Andrew Grant\n");
             printf("option name Hash type spin default 16 min 1 max 2048\n");
             printf("uciok\n");