diff --git a/src/Game/Bishop.php b/src/Game/Bishop.php
new file mode 100644
index 0000000..0bd5e80
--- /dev/null
+++ b/src/Game/Bishop.php
@@ -0,0 +1,43 @@
+<?php
+
+namespace Game;
+
+class Bishop extends Piece {
+    public function getName(): string {
+        return "Bishop";
+    }
+
+    public function getShort(): string {
+        return "B";
+    }
+
+    public function getMoveCandidateMap(FieldBitMap $occupied, FieldBitMap $captureable, FieldBitMap $threatened): FieldBitMap {
+        $result = FieldBitMap::empty();
+
+        $directions = [true, true, true, true];
+        for ($i = 1; $i < 8; $i++) {
+            for ($d = 0; $d < 4; $d++) {
+                if ($directions[$d]) {
+                    $candidate = new Position(
+                        $this->position->file + $i * ($d % 2 == 0 ? 1 : -1),
+                        $this->position->rank + $i * ($d < 2 ? 1 : -1)
+                    );
+                    if ($candidate->isValid()) {
+                        if ($captureable->has($candidate)) {
+                            $result->add($candidate);
+                            $directions[$d] = false;
+                        } else if ($occupied->has($candidate)) {
+                            $directions[$d] = false;
+                        } else {
+                            $result->add($candidate);
+                        }
+                    } else {
+                        $directions[$d] = false;
+                    }
+                }
+            }
+        }
+
+        return $result;
+    }
+}
\ No newline at end of file
diff --git a/tests/Game/BishopTest.php b/tests/Game/BishopTest.php
new file mode 100644
index 0000000..72f71fb
--- /dev/null
+++ b/tests/Game/BishopTest.php
@@ -0,0 +1,98 @@
+<?php
+declare(strict_types=1);
+
+namespace Game;
+
+use PHPUnit\Framework\TestCase;
+
+final class BishopTest extends TestCase {
+
+    public function testMoves_unobstructed() {
+        $subject = new Bishop(new Position(
+            3, 4
+        ), Side::WHITE);
+
+        $result = $subject->getMoveCandidateMap(FieldBitMap::empty(), FieldBitMap::empty(), FieldBitMap::empty());
+
+        $this->assertTrue(
+            $result->equals(new FieldBitMap([
+                new Position(2, 3),
+                new Position(1, 2),
+                new Position(0, 1),
+                new Position(4, 5),
+                new Position(5, 6),
+                new Position(6, 7),
+                new Position(4, 3),
+                new Position(5, 2),
+                new Position(6, 1),
+                new Position(7, 0),
+                new Position(2, 5),
+                new Position(1, 6),
+                new Position(0, 7),
+            ]))
+        );
+    }
+
+    public function testMoves_obstructed() {
+        $subject = new Bishop(new Position(
+            3, 2
+        ), Side::WHITE);
+
+        $result = $subject->getMoveCandidateMap(
+            new FieldBitMap([
+                new Position(4, 3),
+                new Position(5, 0)
+            ]),
+            new FieldBitMap([
+                new Position(2, 1)
+            ]),
+            FieldBitMap::empty()
+        );
+
+        $this->assertTrue(
+            $result->equals(new FieldBitMap([
+                new Position(4, 1),
+                new Position(2, 1),
+                new Position(2, 3),
+                new Position(1, 4),
+                new Position(0, 5)
+            ]))
+        );
+    }
+
+    public function testCaptureable() {
+        $subject = new Bishop(
+            new Position(5, 6),
+            Side::WHITE,
+        );
+
+        $this->assertTrue(
+            $subject->getCaptureableMap(true)->equals(new FieldBitMap([
+                new Position(5, 6)
+            ]))
+        );
+    }
+
+    public function testCaptureMap() {
+        $subject = new Bishop(new Position(
+            5, 2
+        ), Side::WHITE);
+
+        $result = $subject->getCaptureMap(
+            new FieldBitMap([
+                new Position(6, 3),
+                new Position(3, 4)
+            ])
+        );
+
+        $this->assertTrue(
+            $result->equals(new FieldBitMap([
+                new Position(6, 1),
+                new Position(7, 0),
+                new Position(4, 3),
+                new Position(4, 1),
+                new Position(3, 0),
+            ]))
+        );
+    }
+}
\ No newline at end of file