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-rw-r--r--src/grossmeister/ttable.rs13
1 files changed, 10 insertions, 3 deletions
diff --git a/src/grossmeister/ttable.rs b/src/grossmeister/ttable.rs
index 0420e22..8838093 100644
--- a/src/grossmeister/ttable.rs
+++ b/src/grossmeister/ttable.rs
@@ -44,10 +44,17 @@ impl PartialOrd for TranspositionTableItem {
fn partial_cmp(&self, other: &Self) -> Option<Ordering> {
// Order by depth first, then node type
let depth_ordering = self.depth.partial_cmp(&other.depth);
- match depth_ordering {
- Some(Ordering::Equal) => self.node_type.partial_cmp(&other.node_type),
- _ => depth_ordering,
+ if depth_ordering != Some(Ordering::Equal) {
+ return depth_ordering
}
+
+ let node_ordering = self.node_type.partial_cmp(&other.node_type);
+
+ if node_ordering != Some(Ordering::Equal) {
+ return node_ordering
+ }
+
+ self.score.partial_cmp(&other.score)
}
}