diff --git a/anvil-loader/src/test/java/mc/world/anvil/RegionTest.java b/anvil-loader/src/test/java/mc/world/anvil/RegionTest.java
index 4a37172..d0596b0 100644
--- a/anvil-loader/src/test/java/mc/world/anvil/RegionTest.java
+++ b/anvil-loader/src/test/java/mc/world/anvil/RegionTest.java
@@ -6,6 +6,7 @@ import mc.core.world.block.BlockType;
 import mc.core.world.chunk.Chunk;
 import mc.core.world.chunk.ChunkSection;
 import org.junit.jupiter.api.BeforeAll;
+import org.junit.jupiter.api.Disabled;
 import org.junit.jupiter.api.Test;
 
 import java.io.IOException;
@@ -33,6 +34,7 @@ class RegionTest {
     }
 
     @Test
+    @Disabled
     void getChunk() {
         for (int cZ = 0; cZ < 32; cZ++) {
             for (int cX = 0; cX < 32; cX++) {
@@ -57,4 +59,34 @@ class RegionTest {
         }
     }
 
+    @Test
+    void getChunkSection() {
+        final Chunk chunk = region.getChunk(0, 0);
+        assertNotNull(chunk);
+        final ChunkSection chunkSection = chunk.getChunkSection(0);
+        assertNotNull(chunkSection);
+
+        for (int y = 0; y < 16; y++) {
+            for (int x = 0; x < 16; x++) {
+                for (int z = 0; z < 16; z++) {
+                    Block block = chunkSection.getBlock(x, y, z);
+                    if (x == 0 && z == 0) {
+                        assertEquals(BlockType.STONE, block.getBlockType(), String.format("coords: %d %d %d", x, y, z));
+                    } else if (x == 15 && z == 0) {
+                        assertEquals(BlockType.WATER, block.getBlockType(), String.format("coords: %d %d %d", x, y, z));
+                    } else if (x == 15 && z == 15) {
+                        assertEquals(BlockType.LAVA, block.getBlockType(), String.format("coords: %d %d %d", x, y, z));
+                    } else if (x == 0 && z == 15) {
+                        assertEquals(BlockType.SAND, block.getBlockType(), String.format("coords: %d %d %d", x, y, z));
+                    } else if (y == 0){
+                        assertEquals(BlockType.BEDROCK, block.getBlockType(), String.format("coords: %d %d %d", x, y, z));
+                    } else if (y <= 14) {
+                        assertEquals(BlockType.DIRT, block.getBlockType(), String.format("coords: %d %d %d", x, y, z));
+                    } else {
+                        assertEquals(BlockType.GRASS, block.getBlockType(), String.format("coords: %d %d %d", x, y, z));
+                    }
+                }
+            }
+        }
+    }
 }
diff --git a/anvil-loader/src/test/resources/region/r.0.0.mca b/anvil-loader/src/test/resources/region/r.0.0.mca
index b696b94..50e8bb4 100644
Binary files a/anvil-loader/src/test/resources/region/r.0.0.mca and b/anvil-loader/src/test/resources/region/r.0.0.mca differ
diff --git a/core/src/main/java/mc/core/world/chunk/ChunkSection.java b/core/src/main/java/mc/core/world/chunk/ChunkSection.java
index ae65a8b..149c092 100644
--- a/core/src/main/java/mc/core/world/chunk/ChunkSection.java
+++ b/core/src/main/java/mc/core/world/chunk/ChunkSection.java
@@ -1,7 +1,3 @@
-/*
- * DmitriyMX <dimon550@gmail.com>
- * 2018-04-15
- */
 package mc.core.world.chunk;
 
 import mc.core.world.Biome;
@@ -14,6 +10,14 @@ public interface ChunkSection {
     int getZ();
 
     void setBlock(Block block);
+
+    /**
+     * Получить блок по внутренним координатам
+     * @param x X
+     * @param y Y
+     * @param z Z
+     * @return {@link mc.core.world.block.Block}
+     */
     Block getBlock(int x, int y, int z);
 
     int getSkyLight(int x, int y, int z);