diff --git a/Cargo.lock b/Cargo.lock
index a768ae0..cee0251 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -2,6 +2,88 @@
 # It is not intended for manual editing.
 version = 4
 
+[[package]]
+name = "autocfg"
+version = "1.4.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ace50bade8e6234aa140d9a2f552bbee1db4d353f69b8217bc503490fc1a9f26"
+
+[[package]]
+name = "num"
+version = "0.4.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "35bd024e8b2ff75562e5f34e7f4905839deb4b22955ef5e73d2fea1b9813cb23"
+dependencies = [
+ "num-bigint",
+ "num-complex",
+ "num-integer",
+ "num-iter",
+ "num-rational",
+ "num-traits",
+]
+
+[[package]]
+name = "num-bigint"
+version = "0.4.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a5e44f723f1133c9deac646763579fdb3ac745e418f2a7af9cd0c431da1f20b9"
+dependencies = [
+ "num-integer",
+ "num-traits",
+]
+
+[[package]]
+name = "num-complex"
+version = "0.4.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "73f88a1307638156682bada9d7604135552957b7818057dcef22705b4d509495"
+dependencies = [
+ "num-traits",
+]
+
+[[package]]
+name = "num-integer"
+version = "0.1.46"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7969661fd2958a5cb096e56c8e1ad0444ac2bbcd0061bd28660485a44879858f"
+dependencies = [
+ "num-traits",
+]
+
+[[package]]
+name = "num-iter"
+version = "0.1.45"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1429034a0490724d0075ebb2bc9e875d6503c3cf69e235a8941aa757d83ef5bf"
+dependencies = [
+ "autocfg",
+ "num-integer",
+ "num-traits",
+]
+
+[[package]]
+name = "num-rational"
+version = "0.4.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f83d14da390562dca69fc84082e73e548e1ad308d24accdedd2720017cb37824"
+dependencies = [
+ "num-bigint",
+ "num-integer",
+ "num-traits",
+]
+
+[[package]]
+name = "num-traits"
+version = "0.2.19"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "071dfc062690e90b734c0b2273ce72ad0ffa95f0c74596bc250dcfd960262841"
+dependencies = [
+ "autocfg",
+]
+
 [[package]]
 name = "othello"
 version = "0.1.0"
+dependencies = [
+ "num",
+]
diff --git a/Cargo.toml b/Cargo.toml
index 3af4f43..99c751b 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -4,3 +4,4 @@ version = "0.1.0"
 edition = "2021"
 
 [dependencies]
+num = "0.4.3"
diff --git a/src/misc.rs b/src/misc.rs
index c7e7ea6..5630cd8 100644
--- a/src/misc.rs
+++ b/src/misc.rs
@@ -2,11 +2,7 @@ use std::{iter::Rev, ops::RangeInclusive};
 
 pub fn split_from<T>(min: T, max: T, x: T) -> Vec<Vec<T>>
 where
-    T: std::cmp::PartialOrd
-        + std::ops::Add<usize, Output = T>
-        + std::ops::Sub<usize, Output = T>
-        + Copy
-        + Ord,
+    T: num::Integer + Copy,
     RangeInclusive<T>: Iterator<Item = T> + DoubleEndedIterator,
     Rev<RangeInclusive<T>>: Iterator<Item = T>,
 {
@@ -14,15 +10,14 @@ where
         return Vec::new();
     }
 
-    let x_upper = (x + 1).min(max);
-
-    let mut output: Vec<Vec<T>> = Vec::new();
-    if x > min + 1 {
-        let x_lower = x - 1;
+    let mut output: Vec<Vec<T>> = Vec::with_capacity(2);
+    if x > min + T::one() {
+        let x_lower = x - T::one();
         output.push((min..=x_lower).rev().collect());
     }
-    if x_upper < max {
-        output.push((x_upper..=max).collect());
+
+    if x + T::one() < max {
+        output.push(((x + T::one())..=max).collect());
     }
     output
 }
@@ -38,5 +33,8 @@ mod test {
         assert_eq!(split_from(0, 6, 0), vec![vec![1, 2, 3, 4, 5, 6]]);
 
         assert_eq!(split_from(0, 6, 6), vec![vec![5, 4, 3, 2, 1, 0]]);
+
+        // test out-of-bounds and also generics
+        assert_eq!(split_from::<i16>(-1, 4, 10), Vec::<Vec<i16>>::new());
     }
 }