diff --git a/data_structures/arrays/sudoku_solver.py b/data_structures/arrays/sudoku_solver.py
index c9dffcde2379..5c1cff06f9d4 100644
--- a/data_structures/arrays/sudoku_solver.py
+++ b/data_structures/arrays/sudoku_solver.py
@@ -92,10 +92,9 @@ def eliminate(values, s, d):
         dplaces = [s for s in u if d in values[s]]
         if len(dplaces) == 0:
             return False  ## Contradiction: no place for this value
-        elif len(dplaces) == 1:
-            # d can only be in one place in unit; assign it there
-            if not assign(values, dplaces[0], d):
-                return False
+        # d can only be in one place in unit; assign it there
+        elif len(dplaces) == 1 and not assign(values, dplaces[0], d):
+            return False
     return values
 
 
diff --git a/data_structures/stacks/balanced_parentheses.py b/data_structures/stacks/balanced_parentheses.py
index 3c036c220e5c..928815bb2111 100644
--- a/data_structures/stacks/balanced_parentheses.py
+++ b/data_structures/stacks/balanced_parentheses.py
@@ -19,9 +19,10 @@ def balanced_parentheses(parentheses: str) -> bool:
     for bracket in parentheses:
         if bracket in bracket_pairs:
             stack.push(bracket)
-        elif bracket in (")", "]", "}"):
-            if stack.is_empty() or bracket_pairs[stack.pop()] != bracket:
-                return False
+        elif bracket in (")", "]", "}") and (
+            stack.is_empty() or bracket_pairs[stack.pop()] != bracket
+        ):
+            return False
     return stack.is_empty()
 
 
diff --git a/graphs/a_star.py b/graphs/a_star.py
index 06da3b5cd863..1d7063ccc55a 100644
--- a/graphs/a_star.py
+++ b/graphs/a_star.py
@@ -75,13 +75,19 @@ def search(
                 for i in range(len(DIRECTIONS)):  # to try out different valid actions
                     x2 = x + DIRECTIONS[i][0]
                     y2 = y + DIRECTIONS[i][1]
-                    if x2 >= 0 and x2 < len(grid) and y2 >= 0 and y2 < len(grid[0]):
-                        if closed[x2][y2] == 0 and grid[x2][y2] == 0:
-                            g2 = g + cost
-                            f2 = g2 + heuristic[x2][y2]
-                            cell.append([f2, g2, x2, y2])
-                            closed[x2][y2] = 1
-                            action[x2][y2] = i
+                    if (
+                        x2 >= 0
+                        and x2 < len(grid)
+                        and y2 >= 0
+                        and y2 < len(grid[0])
+                        and closed[x2][y2] == 0
+                        and grid[x2][y2] == 0
+                    ):
+                        g2 = g + cost
+                        f2 = g2 + heuristic[x2][y2]
+                        cell.append([f2, g2, x2, y2])
+                        closed[x2][y2] = 1
+                        action[x2][y2] = i
     invpath = []
     x = goal[0]
     y = goal[1]
diff --git a/graphs/bi_directional_dijkstra.py b/graphs/bi_directional_dijkstra.py
index 7b9eac6c8587..d2c4030b921b 100644
--- a/graphs/bi_directional_dijkstra.py
+++ b/graphs/bi_directional_dijkstra.py
@@ -36,9 +36,11 @@ def pass_and_relaxation(
             queue.put((new_cost_f, nxt))
             cst_fwd[nxt] = new_cost_f
             parent[nxt] = v
-        if nxt in visited_backward:
-            if cst_fwd[v] + d + cst_bwd[nxt] < shortest_distance:
-                shortest_distance = cst_fwd[v] + d + cst_bwd[nxt]
+        if (
+            nxt in visited_backward
+            and cst_fwd[v] + d + cst_bwd[nxt] < shortest_distance
+        ):
+            shortest_distance = cst_fwd[v] + d + cst_bwd[nxt]
     return shortest_distance
 
 
diff --git a/other/davis_putnam_logemann_loveland.py b/other/davis_putnam_logemann_loveland.py
index 5c6e2d9ffd5e..3a76f3dfef08 100644
--- a/other/davis_putnam_logemann_loveland.py
+++ b/other/davis_putnam_logemann_loveland.py
@@ -64,10 +64,9 @@ def assign(self, model: dict[str, bool | None]) -> None:
                 value = model[symbol]
             else:
                 continue
-            if value is not None:
-                # Complement assignment if literal is in complemented form
-                if literal.endswith("'"):
-                    value = not value
+            # Complement assignment if literal is in complemented form
+            if value is not None and literal.endswith("'"):
+                value = not value
             self.literals[literal] = value
 
     def evaluate(self, model: dict[str, bool | None]) -> bool | None:
diff --git a/project_euler/problem_033/sol1.py b/project_euler/problem_033/sol1.py
index 187fd61bde6c..71790d34fbed 100644
--- a/project_euler/problem_033/sol1.py
+++ b/project_euler/problem_033/sol1.py
@@ -44,9 +44,13 @@ def fraction_list(digit_len: int) -> list[str]:
     last_digit = int("1" + "0" * digit_len)
     for num in range(den, last_digit):
         while den <= 99:
-            if (num != den) and (num % 10 == den // 10) and (den % 10 != 0):
-                if is_digit_cancelling(num, den):
-                    solutions.append(f"{num}/{den}")
+            if (
+                (num != den)
+                and (num % 10 == den // 10)
+                and (den % 10 != 0)
+                and is_digit_cancelling(num, den)
+            ):
+                solutions.append(f"{num}/{den}")
             den += 1
         num += 1
         den = 10
diff --git a/project_euler/problem_037/sol1.py b/project_euler/problem_037/sol1.py
index ef7686cbcb96..9c09065f4bd0 100644
--- a/project_euler/problem_037/sol1.py
+++ b/project_euler/problem_037/sol1.py
@@ -85,9 +85,10 @@ def validate(n: int) -> bool:
     >>> validate(3797)
     True
     """
-    if len(str(n)) > 3:
-        if not is_prime(int(str(n)[-3:])) or not is_prime(int(str(n)[:3])):
-            return False
+    if len(str(n)) > 3 and (
+        not is_prime(int(str(n)[-3:])) or not is_prime(int(str(n)[:3]))
+    ):
+        return False
     return True
 
 
diff --git a/project_euler/problem_107/sol1.py b/project_euler/problem_107/sol1.py
index 3fe75909e2ea..79cdd937042e 100644
--- a/project_euler/problem_107/sol1.py
+++ b/project_euler/problem_107/sol1.py
@@ -81,10 +81,11 @@ def prims_algorithm(self) -> Graph:
         while len(subgraph.vertices) < len(self.vertices):
             min_weight = max(self.edges.values()) + 1
             for edge, weight in self.edges.items():
-                if (edge[0] in subgraph.vertices) ^ (edge[1] in subgraph.vertices):
-                    if weight < min_weight:
-                        min_edge = edge
-                        min_weight = weight
+                if (edge[0] in subgraph.vertices) ^ (
+                    edge[1] in subgraph.vertices
+                ) and weight < min_weight:
+                    min_edge = edge
+                    min_weight = weight
 
             subgraph.add_edge(min_edge, min_weight)
 
diff --git a/project_euler/problem_207/sol1.py b/project_euler/problem_207/sol1.py
index 2b3591f51cfa..c83dc1d4aaef 100644
--- a/project_euler/problem_207/sol1.py
+++ b/project_euler/problem_207/sol1.py
@@ -88,9 +88,11 @@ def solution(max_proportion: float = 1 / 12345) -> int:
             total_partitions += 1
             if check_partition_perfect(partition_candidate):
                 perfect_partitions += 1
-        if perfect_partitions > 0:
-            if perfect_partitions / total_partitions < max_proportion:
-                return int(partition_candidate)
+        if (
+            perfect_partitions > 0
+            and perfect_partitions / total_partitions < max_proportion
+        ):
+            return int(partition_candidate)
         integer += 1
 
 
diff --git a/pyproject.toml b/pyproject.toml
index 50cd38005f09..e3cf42c92c54 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -18,7 +18,6 @@ lint.ignore = [    # `ruff rule S101` for a description of that rule
   "S105",     # Possible hardcoded password: 'password'
   "S113",     # Probable use of requests call without timeout -- FIX ME
   "S311",     # Standard pseudo-random generators are not suitable for cryptographic purposes -- FIX ME
-  "SIM102",   # Use a single `if` statement instead of nested `if` statements -- FIX ME
   "SLF001",   # Private member accessed: `_Iterator` -- FIX ME
   "UP038",    # Use `X | Y` in `{}` call instead of `(X, Y)` -- DO NOT FIX
 ]
diff --git a/scheduling/shortest_job_first.py b/scheduling/shortest_job_first.py
index cfd0417ea62d..6899ec87c591 100644
--- a/scheduling/shortest_job_first.py
+++ b/scheduling/shortest_job_first.py
@@ -37,11 +37,14 @@ def calculate_waitingtime(
     # Process until all processes are completed
     while complete != no_of_processes:
         for j in range(no_of_processes):
-            if arrival_time[j] <= increment_time and remaining_time[j] > 0:
-                if remaining_time[j] < minm:
-                    minm = remaining_time[j]
-                    short = j
-                    check = True
+            if (
+                arrival_time[j] <= increment_time
+                and remaining_time[j] > 0
+                and remaining_time[j] < minm
+            ):
+                minm = remaining_time[j]
+                short = j
+                check = True
 
         if not check:
             increment_time += 1
diff --git a/scripts/validate_solutions.py b/scripts/validate_solutions.py
index ca4af5261a8f..0afbdde315c7 100755
--- a/scripts/validate_solutions.py
+++ b/scripts/validate_solutions.py
@@ -71,10 +71,13 @@ def added_solution_file_path() -> list[pathlib.Path]:
 
 
 def collect_solution_file_paths() -> list[pathlib.Path]:
-    if os.environ.get("CI") and os.environ.get("GITHUB_EVENT_NAME") == "pull_request":
-        # Return only if there are any, otherwise default to all solutions
-        if filepaths := added_solution_file_path():
-            return filepaths
+    # Return only if there are any, otherwise default to all solutions
+    if (
+        os.environ.get("CI")
+        and os.environ.get("GITHUB_EVENT_NAME") == "pull_request"
+        and (filepaths := added_solution_file_path())
+    ):
+        return filepaths
     return all_solution_file_paths()
 
 
diff --git a/web_programming/emails_from_url.py b/web_programming/emails_from_url.py
index 6b4bacfe7d5a..26c88e1b13a5 100644
--- a/web_programming/emails_from_url.py
+++ b/web_programming/emails_from_url.py
@@ -30,12 +30,15 @@ def handle_starttag(self, tag: str, attrs: list[tuple[str, str | None]]) -> None
         if tag == "a":
             # Check the list of defined attributes.
             for name, value in attrs:
-                # If href is defined, and not empty nor # print it.
-                if name == "href" and value != "#" and value != "":
-                    # If not already in urls.
-                    if value not in self.urls:
-                        url = parse.urljoin(self.domain, value)
-                        self.urls.append(url)
+                # If href is defined, not empty nor # print it and not already in urls.
+                if (
+                    name == "href"
+                    and value != "#"
+                    and value != ""
+                    and value not in self.urls
+                ):
+                    url = parse.urljoin(self.domain, value)
+                    self.urls.append(url)
 
 
 # Get main domain name (example.com)