diff --git a/src/CheckboxSyncPluginSettingTab.ts b/src/CheckboxSyncPluginSettingTab.ts
index 3e0e642..cf1350b 100644
--- a/src/CheckboxSyncPluginSettingTab.ts
+++ b/src/CheckboxSyncPluginSettingTab.ts
@@ -1,6 +1,6 @@
 import { App, ButtonComponent, DropdownComponent, Notice, PluginSettingTab, Setting, TextComponent, ToggleComponent } from "obsidian";
 import CheckboxSyncPlugin from "./main";
-import { UnknownSymbolPolicyEnum } from "./types";
+import { CheckboxState } from "./types";
 
 export class CheckboxSyncPluginSettingTab extends PluginSettingTab {
   plugin: CheckboxSyncPlugin;
@@ -116,9 +116,9 @@ export class CheckboxSyncPluginSettingTab extends PluginSettingTab {
       .addDropdown(dropdown => {
         this.unknownPolicyDropdown = dropdown;
         dropdown
-          .addOption(UnknownSymbolPolicyEnum.Checked, 'Treat as Checked')
-          .addOption(UnknownSymbolPolicyEnum.Unchecked, 'Treat as Unchecked')
-          .addOption(UnknownSymbolPolicyEnum.Ignore, 'Ignore')
+          .addOption(CheckboxState.Checked, 'Treat as Checked')
+          .addOption(CheckboxState.Unchecked, 'Treat as Unchecked')
+          .addOption(CheckboxState.Ignore, 'Ignore')
           .setValue(this.plugin.settings.unknownSymbolPolicy)
           .onChange(() => this.applyButton.setDisabled(false))
       });
@@ -178,7 +178,7 @@ export class CheckboxSyncPluginSettingTab extends PluginSettingTab {
     try {
       const checkedValue = this.checkedSymbolsInput.getValue();
       const uncheckedValue = this.uncheckedSymbolsInput.getValue();
-      const policyValue = this.unknownPolicyDropdown.getValue() as UnknownSymbolPolicyEnum;
+      const policyValue = this.unknownPolicyDropdown.getValue() as CheckboxState;
       const parentValue = this.parentToggle.getValue();
       const childValue = this.childToggle.getValue();
 
diff --git a/src/checkboxUtils.ts b/src/checkboxUtils.ts
index 0dc29a9..ae92e09 100644
--- a/src/checkboxUtils.ts
+++ b/src/checkboxUtils.ts
@@ -1,10 +1,12 @@
-import { CheckboxSyncPluginSettings } from "./types";
+import { CheckboxState, CheckboxSyncPluginSettings } from "./types";
 
 export interface CheckboxLineInfo {
   indent: number;
   marker: string;
   checkChar: string;
   checkboxCharPosition: number;
+  checkboxState: CheckboxState;
+  isChecked: boolean | undefined;
 }
 
 export class CheckboxUtils {
@@ -22,21 +24,33 @@ export class CheckboxUtils {
     const marker = match[2];
     const checkChar = match[3];
     const checkboxCharPosition = indent + marker.length + 2;
+    const checkboxState = this.getCheckboxState(checkChar);
+    let isChecked = checkboxState === CheckboxState.Ignore ? undefined : checkboxState === CheckboxState.Checked;
 
     return {
       indent,
       marker,
       checkChar,
-      checkboxCharPosition
+      checkboxCharPosition,
+      checkboxState,
+      isChecked
     };
   }
 
-  isCheckedSymbol(text: string): boolean {
-    return this.settings.xOnlyMode ? text === "x" : text !== " ";
+  getCheckboxState(text: string): CheckboxState {
+    // Проверяем наличие символа в списке отмеченных
+    if (this.settings.checkedSymbols.includes(text)) {
+      return CheckboxState.Checked;
+    }
+    // Проверяем наличие символа в списке неотмеченных
+    if (this.settings.uncheckedSymbols.includes(text)) {
+      return CheckboxState.Unchecked;
+    }
+    return this.settings.unknownSymbolPolicy;
   }
 
   updateLineCheckboxStateWithInfo(line: string, shouldBeChecked: boolean, lineInfo: CheckboxLineInfo): string {
-    const newCheckChar = shouldBeChecked ? "x" : " ";
+    const newCheckChar = shouldBeChecked ? this.settings.checkedSymbols[0] : this.settings.uncheckedSymbols[0];
     const pos = lineInfo.checkboxCharPosition;
     if (pos >= 0 && pos < line.length) {
       return line.substring(0, pos) + newCheckChar + line.substring(pos + 1);
@@ -52,17 +66,24 @@ export class CheckboxUtils {
 
     const parentLineInfo = this.matchCheckboxLine(lines[parentLine]);
     if (!parentLineInfo) {
-      console.log(`checkbox not found in line ${parentLine}`)
+      console.warn(`checkbox not found in line ${parentLine}`)
       return text;
     }
 
-    const isChecked = this.isCheckedSymbol(parentLineInfo.checkChar);
+    if (parentLineInfo.checkboxState === CheckboxState.Ignore) {
+      return text;
+    }
+    let parentIsChecked = parentLineInfo.isChecked!;
+
     let j = parentLine + 1;
 
     while (j < lines.length) {
       const childLineInfo = this.matchCheckboxLine(lines[j]);
       if (!childLineInfo || childLineInfo.indent <= parentLineInfo.indent) break;
-      lines[j] = this.updateLineCheckboxStateWithInfo(lines[j], isChecked, childLineInfo);
+
+      if (childLineInfo.checkboxState !== CheckboxState.Ignore) {
+        lines[j] = this.updateLineCheckboxStateWithInfo(lines[j], parentIsChecked, childLineInfo);
+      }
       j++;
     }
     return lines.join("\n");
@@ -75,24 +96,32 @@ export class CheckboxUtils {
       const parentLineInfo = this.matchCheckboxLine(lines[i]);
       if (!parentLineInfo) continue;
 
-      const isChecked = this.isCheckedSymbol(parentLineInfo.checkChar);
+      if (parentLineInfo.checkboxState === CheckboxState.Ignore) {
+        continue;
+      }
+      const parentIsChecked = parentLineInfo.isChecked!;
       let allChildrenChecked = true;
       let hasChildren = false;
-      let j = i + 1;
 
-      while (j < lines.length) {
+      for (let j = i + 1; j < lines.length; j++) {
         const childLineInfo = this.matchCheckboxLine(lines[j]);
-        if (!childLineInfo || childLineInfo.indent <= parentLineInfo.indent) break;
+        if (!childLineInfo) {
+          continue;
+        }
+        if (childLineInfo.indent <= parentLineInfo.indent) break;
+
+        if (childLineInfo.checkboxState === CheckboxState.Ignore) {
+          continue;
+        }
         hasChildren = true;
-        const childrenIsChecked = this.isCheckedSymbol(childLineInfo.checkChar);
+        const childrenIsChecked = childLineInfo.isChecked!;
         if (!childrenIsChecked) {
           allChildrenChecked = false;
           break;
         }
-        j++;
       }
 
-      if (hasChildren && isChecked !== allChildrenChecked) {
+      if (hasChildren && parentIsChecked !== allChildrenChecked) {
         lines[i] = this.updateLineCheckboxStateWithInfo(lines[i], allChildrenChecked, parentLineInfo);
       }
     }
@@ -137,7 +166,7 @@ export class CheckboxUtils {
       lineInfoBefore && lineInfoAfter &&
       lineInfoBefore.indent === lineInfoAfter.indent &&
       lineInfoBefore.marker === lineInfoAfter.marker &&
-      lineInfoBefore.checkChar !== lineInfoAfter.checkChar
+      lineInfoBefore.checkboxState !== lineInfoAfter.checkboxState
     ) {
       return this.propagateStateToChildren(text, diffIndexes[0]);
     }
diff --git a/src/main.ts b/src/main.ts
index 52f68e3..3972134 100644
--- a/src/main.ts
+++ b/src/main.ts
@@ -3,7 +3,7 @@ import { CheckboxSyncPluginSettingTab } from "./CheckboxSyncPluginSettingTab";
 import { CheckboxUtils } from "./checkboxUtils";
 import FileStateHolder from "./FileStateHolder";
 import SyncController from "./SyncController";
-import { CheckboxSyncPluginSettings, UnknownSymbolPolicyEnum } from "./types";
+import { CheckboxState, CheckboxSyncPluginSettings } from "./types";
 import { FileLoadEventHandler } from "./events/FileLoadEventHandler";
 import { FileChangeEventHandler } from "./events/FileChangeEventHandler";
 
@@ -13,7 +13,7 @@ const DEFAULT_SETTINGS: CheckboxSyncPluginSettings = {
   enableAutomaticChildState: true,
   checkedSymbols: ['x'],
   uncheckedSymbols: [' '],
-  unknownSymbolPolicy: UnknownSymbolPolicyEnum.Checked, 
+  unknownSymbolPolicy: CheckboxState.Checked, 
 };
 
 export default class CheckboxSyncPlugin extends Plugin {
diff --git a/src/types.ts b/src/types.ts
index 6d00311..1cf4658 100644
--- a/src/types.ts
+++ b/src/types.ts
@@ -1,14 +1,14 @@
-export enum UnknownSymbolPolicyEnum {
-  Checked = 'checked',
-  Unchecked = 'unchecked',
-  Ignore = 'ignore'
-}
-
 export interface CheckboxSyncPluginSettings {
   xOnlyMode: boolean;
   enableAutomaticParentState: boolean;
   enableAutomaticChildState: boolean;
   checkedSymbols: string[];
   uncheckedSymbols: string[];
-  unknownSymbolPolicy: UnknownSymbolPolicyEnum;
+  unknownSymbolPolicy: CheckboxState;
+}
+
+export enum CheckboxState {
+  Checked = 'checked',
+  Unchecked = 'unchecked',
+  Ignore = 'ignore'
 }
\ No newline at end of file