diff --git a/reasoning_gym/cognition/arc_1d.py b/reasoning_gym/cognition/arc_1d.py
index ed183df8..433b4856 100644
--- a/reasoning_gym/cognition/arc_1d.py
+++ b/reasoning_gym/cognition/arc_1d.py
@@ -16,40 +16,212 @@ def write_block(pos: int, block: List[int], field: List[int]) -> List[int]:
 
 
 def task_move_n_pix(size: int, move_pix: int, solid: bool, rng: Random) -> Optional[Dict[str, List[int]]]:
-    """
-    Generate a task where a block is moved to the right by move_pix pixels.
-
-    Args:
-        size: Size of the field
-        move_pix: Number of pixels to move the block
-        solid: If True, block is single color; if False, block has random colors
-        rng: Random number generator
-
-    Returns:
-        Dictionary with 'input' and 'output' fields containing the puzzle,
-        or None if valid puzzle cannot be generated
-    """
-    # Validate size constraints
+    """Generate a task where a block is moved to the right by move_pix pixels."""
     if size <= move_pix + 1:
         return None
 
-    # Generate block size and position
     block_size = rng.randint(1, size - move_pix - 1)
     block_pos = rng.randint(0, size - block_size - move_pix)
 
-    # Generate the block
     if solid:
-        # For solid blocks, use single random color (1-9)
         color = rng.randint(1, 9)
         block = [color] * block_size
     else:
-        # For non-solid blocks, each position gets random color (1-9)
         block = [rng.randint(1, 9) for _ in range(block_size)]
 
-    # Create input field with block at initial position
     question = write_block(block_pos, block, gen_field(size))
-
-    # Create output field with block moved right by move_pix
     answer = write_block(block_pos + move_pix, block, gen_field(size))
 
     return {"input": question, "output": answer}
+
+def task_move_n_pix_wrapped(size: int, move_pix: int, solid: bool, rng: Random) -> Optional[Dict[str, List[int]]]:
+    """Generate a task where a block is moved to the right by move_pix pixels with wrapping."""
+    block_size = rng.randint(1, size)
+    block_pos = rng.randint(0, size)
+    
+    if solid:
+        color = rng.randint(1, 9)
+        block = [color] * block_size
+    else:
+        block = [rng.randint(1, 9) for _ in range(block_size)]
+
+    question = gen_field(size)
+    answer = gen_field(size)
+    
+    for i, color in enumerate(block):
+        question[(block_pos + i) % size] = color
+        answer[(block_pos + move_pix + i) % size] = color
+
+    return {"input": question, "output": answer}
+
+def task_gravity(size: int, rng: Random) -> Optional[Dict[str, List[int]]]:
+    """Generate a task where all non-zero elements are attracted to the left."""
+    density = 0.5
+    question = [rng.randint(1, 9) if rng.random() < density else 0 for _ in range(size)]
+    
+    non_zero = [x for x in question if x != 0]
+    answer = non_zero + [0] * (size - len(non_zero))
+    
+    return {"input": question, "output": answer}
+
+def task_gravity_counting(size: int, rng: Random) -> Optional[Dict[str, List[int]]]:
+    """Generate a task where non-zero elements are counted and represented as a sequence of 1s."""
+    density = 0.5
+    question = [rng.randint(1, 9) if rng.random() < density else 0 for _ in range(size)]
+    
+    count = sum(1 for x in question if x != 0)
+    answer = [1] * count + [0] * (size - count)
+    
+    return {"input": question, "output": answer}
+
+def task_gravity_antigravity(size: int, rng: Random) -> Optional[Dict[str, List[int]]]:
+    """Generate a task where color 1 moves right and color 2 moves left."""
+    density = 0.5
+    question = [rng.randint(1, 2) if rng.random() < density else 0 for _ in range(size)]
+    
+    color1 = [x for x in question if x == 1]
+    color2 = [x for x in question if x == 2]
+    answer = [2] * len(color2) + [0] * (size - len(color1) - len(color2)) + [1] * len(color1)
+    
+    return {"input": question, "output": answer}
+
+def task_block_touch_dot(size: int, rng: Random) -> Optional[Dict[str, List[int]]]:
+    """Generate a task where a block moves to touch (but not cover) a dot."""
+    dot_color = 1
+    block_color = rng.randint(2, 9)
+    
+    block_size = rng.randint(1, size)
+    dot_pos = rng.randint(0, size)
+    
+    can_place_left = dot_pos >= block_size
+    can_place_right = dot_pos + block_size < size
+    
+    if not (can_place_left or can_place_right):
+        return None
+        
+    if can_place_left and can_place_right:
+        side = rng.choice(["left", "right"])
+    elif can_place_left:
+        side = "left"
+    else:
+        side = "right"
+        
+    if side == "left":
+        q_block_pos = rng.randint(0, dot_pos - block_size)
+        a_block_pos = dot_pos - block_size
+    else:
+        q_block_pos = rng.randint(dot_pos + 1, size - block_size)
+        a_block_pos = dot_pos + 1
+        
+    question = gen_field(size)
+    question[dot_pos] = dot_color
+    question = write_block(q_block_pos, [block_color] * block_size, question)
+    
+    answer = gen_field(size)
+    answer[dot_pos] = dot_color
+    answer = write_block(a_block_pos, [block_color] * block_size, answer)
+    
+    return {"input": question, "output": answer}
+
+def task_block_touch_dot_n_pix(size: int, move_pix: int, rng: Random) -> Optional[Dict[str, List[int]]]:
+    """Generate a task where a block moves move_pix pixels toward a dot."""
+    dot_color = 2
+    block_color = rng.randint(3, 9)
+    
+    block_size = rng.randint(1, size)
+    dot_pos = rng.randint(0, size)
+    
+    can_place_left = dot_pos >= block_size
+    can_place_right = dot_pos + block_size < size
+    
+    if not (can_place_left or can_place_right):
+        return None
+        
+    if can_place_left and can_place_right:
+        side = rng.choice(["left", "right"])
+    elif can_place_left:
+        side = "left"
+    else:
+        side = "right"
+        
+    if side == "left":
+        q_block_pos = rng.randint(0, dot_pos - block_size)
+        distance = (dot_pos - block_size) - q_block_pos
+        move = min(distance, move_pix)
+        a_block_pos = q_block_pos + move
+    else:
+        q_block_pos = rng.randint(dot_pos + 1, size - block_size)
+        distance = q_block_pos - (dot_pos + 1)
+        move = min(distance, move_pix)
+        a_block_pos = q_block_pos - move
+        
+    question = gen_field(size)
+    question[dot_pos] = dot_color
+    question = write_block(q_block_pos, [block_color] * block_size, question)
+    
+    answer = gen_field(size)
+    answer[dot_pos] = dot_color
+    answer = write_block(a_block_pos, [block_color] * block_size, answer)
+    
+    return {"input": question, "output": answer}
+
+def task_block_scale_to_dot(size: int, rng: Random) -> Optional[Dict[str, List[int]]]:
+    """Generate a task where a block scales to touch a dot (keeping one end fixed)."""
+    dot_color = 2
+    block_color = rng.randint(3, 9)
+    
+    block_size = rng.randint(1, size)
+    dot_pos = rng.randint(0, size)
+    
+    can_place_left = dot_pos >= block_size
+    can_place_right = dot_pos + block_size < size
+    
+    if not (can_place_left or can_place_right):
+        return None
+        
+    if can_place_left and can_place_right:
+        side = rng.choice(["left", "right"])
+    elif can_place_left:
+        side = "left"
+    else:
+        side = "right"
+        
+    if side == "left":
+        q_block_pos = rng.randint(0, dot_pos - block_size)
+        new_size = dot_pos - q_block_pos + 1
+        a_block_pos = q_block_pos
+    else:
+        q_block_pos = rng.randint(dot_pos + 1, size - block_size)
+        new_size = (q_block_pos + block_size) - dot_pos
+        a_block_pos = dot_pos
+        
+    question = gen_field(size)
+    question[dot_pos] = dot_color
+    question = write_block(q_block_pos, [block_color] * block_size, question)
+    
+    answer = gen_field(size)
+    answer[dot_pos] = dot_color
+    answer = write_block(a_block_pos, [block_color] * new_size, answer)
+    
+    return {"input": question, "output": answer}
+
+def task_two_points_and_fill(size: int, rng: Random) -> Optional[Dict[str, List[int]]]:
+    """Generate a task where space between two points of same color is filled with that color."""
+    color = rng.randint(1, 9)
+    
+    pos1 = rng.randint(0, size - 1)
+    pos2 = rng.randint(0, size - 1)
+    if pos1 == pos2:
+        return None
+        
+    pos1, pos2 = min(pos1, pos2), max(pos1, pos2)
+    
+    question = gen_field(size)
+    question[pos1] = color
+    question[pos2] = color
+    
+    answer = question.copy()
+    for i in range(pos1, pos2 + 1):
+        answer[i] = color
+    
+    return {"input": question, "output": answer}