Update chess_ground-targz.py

chess_ground-targz.py

@@ -88,11 +88,12 @@ class ChessImageTextDataset(datasets.GeneratorBasedBuilder):
                 # Clean the text to keep only chess notation
                 cleaned_texts = [self._extract_chess_notation(text) for text in texts]
                 
-                # Join the cleaned notations related to the same image
-                combined_text = " ".join(cleaned_texts)
+                # Add numbering to the moves in pairs
+                numbered_text = self._add_numeration(cleaned_texts)
+                
                 yield idx, {
                     "image": image_file,
-                    "text": combined_text,  # Link all related cleaned notations together
+                    "text": numbered_text,  # Link all related cleaned notations together with numeration
                 }
                 idx += 1
             else:
@@ -126,3 +127,19 @@ class ChessImageTextDataset(datasets.GeneratorBasedBuilder):
         # Assuming the chess notation comes after the filename and space, e.g., '001_0_30_white.png Rxc6'
         notation = text.split(" ", 1)[-1]  # Extract everything after the first space
         return notation.strip()
+
+    def _add_numeration(self, notations):
+        """Adds numeration to chess notations, pairing moves and numbering them."""
+        numbered_text = []
+        counter = 1
+
+        # Pair every two moves and add numeration
+        for i in range(0, len(notations), 2):
+            # Grab two moves if available, otherwise just take the remaining one
+            move_pair = notations[i:i+2]
+            numbered_move = f"{counter}. " + " ".join(move_pair)
+            numbered_text.append(numbered_move)
+            counter += 1
+
+        # Join all numbered moves into a single text
+        return " ".join(numbered_text)