New telemetry.

1 files changed, 44 insertions, 0 deletions

diff --git a/src/root.c b/src/root.c
index bc6e3be..f9949a9 100644
--- a/src/root.c
+++ b/src/root.c
@@ -469,6 +469,45 @@ Return value:
     Trace("Null move cutoff rate: %5.3f percent.\n",
           ((n / d) * 100.0));
 #ifdef PERF_COUNTERS
+    Trace("Overt move skips: LMP=%llu EFP=%llu moves.\n",
+          ctx->sCounters.tree.u64LMPPruned,
+          ctx->sCounters.tree.u64EFPPruned);
+    {
+        ULONG uR;
+        UINT64 u64TotalTries = 0;
+        for (uR = 0; uR < NULL_R_BUCKETS; uR++)
+        {
+            u64TotalTries += ctx->sCounters.tree.u64NullMoveTriesByR[uR];
+        }
+        u64TotalTries += (0 == u64TotalTries);  // avoid /0 if never tried
+        Trace("Null move (R): tries/successes, successes%% of ALL null-move "
+              "tries (sums to the overall cutoff rate above):\n");
+        for (uR = 0; uR < NULL_R_BUCKETS; uR++)
+        {
+            UINT64 u64Tries = ctx->sCounters.tree.u64NullMoveTriesByR[uR];
+            if (0 == u64Tries) continue;
+            Trace(" %u/%" COMPILER_LONGLONG_UNSIGNED_FORMAT
+                  "/%" COMPILER_LONGLONG_UNSIGNED_FORMAT
+                  "(%.1f%%)",
+                  uR, u64Tries,
+                  ctx->sCounters.tree.u64NullMoveSuccessByR[uR],
+                  100.0 * (double)ctx->sCounters.tree.u64NullMoveSuccessByR[uR] /
+                  (double)u64TotalTries);
+        }
+        Trace("\n");
+    }
+    {
+        ULONG uTier;
+        Trace("LMR reductions (plies):");
+        for (uTier = 0; uTier < JOINT_EXTRA_TIER_COUNT; uTier++)
+        {
+            UINT64 u64Tries = ctx->sCounters.tree.u64JointExtraTries[uTier];
+            if (0 == u64Tries) continue;
+            Trace(" %u/%" COMPILER_LONGLONG_UNSIGNED_FORMAT,
+                  uTier + 1, u64Tries);
+        }
+        Trace("\n");
+    }
     // 2026-10-03: percentages added, each against the count of nodes of
     // THAT TYPE (u64NodeTypeCount, incremented in CommonSearchInit),
     // not against total nodes -- dividing by total nodes understates
@@ -1629,6 +1668,11 @@ Return value:
     memcpy(g_Options.u64JointExtraResearch, ctx->sCounters.tree.u64JointExtraResearch,
            sizeof(g_Options.u64JointExtraResearch));
     g_Options.u64LMPPruned = ctx->sCounters.tree.u64LMPPruned;
+    g_Options.u64EFPPruned = ctx->sCounters.tree.u64EFPPruned;
+    memcpy(g_Options.u64NullMoveTriesByR, ctx->sCounters.tree.u64NullMoveTriesByR,
+           sizeof(g_Options.u64NullMoveTriesByR));
+    memcpy(g_Options.u64NullMoveSuccessByR, ctx->sCounters.tree.u64NullMoveSuccessByR,
+           sizeof(g_Options.u64NullMoveSuccessByR));
 #ifdef PRUNE_VERIFY
     memcpy(g_Options.u64PruneVerifyTries, ctx->sCounters.tree.u64PruneVerifyTries,
            sizeof(g_Options.u64PruneVerifyTries));