Check one additional pixel for basic blocks to avoid false positive in board 23

detection.py

@@ -20,6 +20,7 @@ BOMB_HUES = [250, 219, 132, 174, 38]
 HUE_TOLERANCE = 5
 DETECT_BASIC_X = 9
 DETECT_BASIC_Y = 15
+DETECT_BASIC_Y_CHECK = 17
 DETECT_BOMB_X = 22
 DETECT_BOMB_Y = 43
 DETECT_BOMB_Y_TOLERANCE = 7
@@ -78,7 +79,10 @@ def detect_block(board, x, y):
     if s >= MIN_BASIC_SAT:
         for ty, hexpect in enumerate(BASIC_HUES):
             if is_hue(h, hexpect):
-                return ty
+                h, s, v = board.getpixel((x + DETECT_BASIC_X,
+                                          y + DETECT_BASIC_Y_CHECK))
+                if is_hue(h, hexpect):
+                    return ty
 
     # if no basic block is detected, check another range of pixels for bomb
     # contents