diff --git a/DOS_BUILD.md b/DOS_BUILD.md
deleted file mode 100644
index c0294ca..0000000
--- a/DOS_BUILD.md
+++ /dev/null
@@ -1,202 +0,0 @@
-# Building Cordle for DOS
-
-Cordle is fully compatible with DOS systems using either DJGPP or Borland C compilers. The code is strictly C90 compliant and includes platform-specific conditional compilation.
-
-## Platform Support
-
-### Tested Environments
-- **MS-DOS 6.22**
-- **FreeDOS 1.3**
-- **DOSBox** (with DJGPP)
-- **DOSBox-X**
-
-### Compiler Options
-
-#### Option 1: DJGPP (Recommended)
-DJGPP is a complete 32-bit C/C++ development system for DOS, based on GCC.
-
-**Requirements:**
-- DJGPP 2.05 or later
-- PDCurses library (DOS port)
-- GNU Make
-- Minimum 2MB RAM
-
-**Installation:**
-1. Download DJGPP from http://www.delorie.com/djgpp/
-2. Required packages:
-   - `djdev205.zip` (DJGPP development kit)
-   - `gcc930b.zip` (GNU C Compiler)
-   - `bnu234b.zip` (GNU Binutils)
-   - `mak43b.zip` (GNU Make)
-
-3. Extract all to `C:\DJGPP`
-
-4. Set environment variables in `AUTOEXEC.BAT`:
-   ```
-   SET DJGPP=C:\DJGPP\DJGPP.ENV
-   SET PATH=C:\DJGPP\BIN;%PATH%
-   ```
-
-**Building PDCurses:**
-1. Download PDCurses from https://pdcurses.org/
-2. Extract and build:
-   ```
-   cd pdcurses\dos
-   make -f Makefile.dj
-   ```
-3. Install:
-   ```
-   copy pdcurses.a C:\DJGPP\LIB\libpdcurses.a
-   copy curses.h C:\DJGPP\INCLUDE\
-   copy panel.h C:\DJGPP\INCLUDE\
-   ```
-
-**Building Cordle:**
-```
-cd \CORDLE
-make
-```
-
-This creates `CORDLE.EXE` in the `build` directory.
-
-#### Option 2: Borland C/C++ 3.1 or Turbo C++
-
-**Requirements:**
-- Borland C/C++ 3.1 or later
-- PDCurses for DOS
-- Minimum 640KB RAM
-
-**Manual Build:**
-```
-bcc -mc -IC:\BC\INCLUDE -LC:\BC\LIB -std=c90 src\main.c src\game.c src\ui.c src\words.c -lpdcurses -ocordle.exe
-```
-
-Note: Borland uses slightly different command-line syntax. Adjust paths as needed.
-
-## File Paths in DOS Build
-
-The DOS version automatically detects the platform and uses DOS-appropriate paths:
-
-**DOS Search Order:**
-1. `wordlists\` (relative to executable - for development)
-2. `C:\CORDLE\wordlists\` (system installation)
-3. Custom path via `--wordlist` argument
-
-**Unix Search Order:**
-1. `wordlists/` (relative to executable)
-2. `/usr/local/share/cordle/wordlists/`
-3. `$HOME/.local/share/cordle/wordlists/`
-4. Custom path via `--wordlist` argument
-
-## Installation on DOS
-
-### Directory Structure
-```
-C:\CORDLE\
-  ├── CORDLE.EXE
-  └── wordlists\
-      ├── CORDLE_WORDS_EASY.TXT
-      ├── CORDLE_WORDS_MEDIUM.TXT
-      ├── CORDLE_WORDS_HARD.TXT
-      └── ...
-```
-
-### Quick Install
-1. Create directory: `mkdir C:\CORDLE`
-2. Copy `CORDLE.EXE` to `C:\CORDLE`
-3. Copy `wordlists` directory to `C:\CORDLE`
-4. Add to PATH in `AUTOEXEC.BAT`:
-   ```
-   SET PATH=C:\CORDLE;%PATH%
-   ```
-
-## Running on DOS
-
-```
-C:\> cordle
-C:\> cordle --easy
-C:\> cordle --medium
-C:\> cordle --hard
-C:\> cordle --help
-```
-
-## Memory Requirements
-
-- **Minimum:** 2MB RAM (DJGPP), 640KB (Borland)
-- **Recommended:** 4MB RAM
-- **Display:** VGA compatible (for colors)
-- **DOS Version:** 5.0 or higher
-
-## Troubleshooting
-
-### "Out of memory" Error
-- Increase DOS memory limit
-- Use CWSDPMI.EXE memory extender (included with DJGPP)
-- Free up conventional memory by unloading TSRs
-
-### "libpdcurses.a not found"
-- Verify PDCurses installation
-- Check library path: `C:\DJGPP\LIB\`
-
-### "curses.h not found"
-- Copy `curses.h` to `C:\DJGPP\INCLUDE\`
-
-### Colors Not Working
-- Ensure VGA-compatible display
-- Try running in DOSBox with `machine=svga_s3`
-
-### Arrow Keys Crash (Fixed in v1.1)
-- Arrow keys are now properly handled and ignored
-- Update to latest version if experiencing issues
-
-## Testing in DOSBox
-
-A DOSBox configuration is included in the `dosbox/` directory:
-
-```
-dosbox -conf dosbox/dosbox_config_cordle.ini
-```
-
-## Platform Detection
-
-The code automatically detects DOS vs Unix at compile time:
-
-```c
-#if defined(__MSDOS__) || defined(_MSDOS) || defined(__DOS__) || defined(MSDOS)
-    /* DOS-specific code */
-#else
-    /* Unix-specific code */
-#endif
-```
-
-## Differences from Unix Version
-
-1. **Curses Library:** PDCurses instead of ncurses
-2. **Path Separators:** Backslash (`\`) instead of forward slash (`/`)
-3. **File Paths:** DOS-style paths (`C:\CORDLE\wordlists\`)
-4. **Executable:** `.exe` extension
-5. **No HOME Environment:** Uses fixed system path instead
-
-## Source Code Portability
-
-The code is 100% C90 compliant with:
-- No C99/C11 features
-- No GNU extensions
-- Conditional compilation for platform differences
-- Standard library only (stdio, stdlib, string, time, ctype)
-- Platform-specific curses handling
-
-## For Modern Development
-
-For testing DOS builds on modern systems:
-1. Use DOSBox-X (more accurate DOS emulation)
-2. Install DJGPP within DOSBox
-3. Use cross-compilation from Linux/macOS (advanced)
-
-## License Note
-
-Ensure PDCurses license compatibility with your distribution. PDCurses is public domain.
-
----
-
-For Unix/Linux/macOS build instructions, see the main README.md.
diff --git a/dosbox/CordleDosBoxLauncher.bat b/dosbox/CordleDosBoxLauncher.bat
deleted file mode 100644
index ceffbfb..0000000
--- a/dosbox/CordleDosBoxLauncher.bat
+++ /dev/null
@@ -1,33 +0,0 @@
-@echo off
-REM DOSBox Launcher for Cordle
-REM Automatically starts DOSBox with correct configuration
-
-echo ================================================
-echo Starting DOSBox for Cordle Development
-echo ================================================
-echo.
-
-REM Check if DOSBox is installed
-where dosbox >nul 2>&1
-if %errorlevel% neq 0 (
-    echo ERROR: DOSBox not found in PATH
-    echo.
-    echo Please install DOSBox from: https://www.dosbox.com/
-    echo Or specify the full path to dosbox.exe below
-    pause
-    exit /b 1
-)
-
-REM Check if config file exists
-if not exist "dosbox-cordle.conf" (
-    echo ERROR: dosbox-cordle.conf not found
-    echo Please ensure the config file is in the current directory
-    pause
-    exit /b 1
-)
-
-echo Launching DOSBox...
-echo.
-dosbox -conf dosbox-cordle.conf
-
-pause
diff --git a/dosbox/CordleDosMakefile.mk b/dosbox/CordleDosMakefile.mk
deleted file mode 100644
index 7cdf74d..0000000
--- a/dosbox/CordleDosMakefile.mk
+++ /dev/null
@@ -1,124 +0,0 @@
-# Makefile for Cordle - Cross-platform C90 Wordle Game
-# Supports Unix/Linux/macOS and DOS (DJGPP)
-#
-# Usage:
-#   Unix/Linux/macOS:  make
-#   DOS (DJGPP):       make
-#   Clean:             make clean
-
-# Compiler
-CC = gcc
-
-# Compiler flags - strict C90 compliance
-CFLAGS = -std=c90 -Wall -Wextra -pedantic -O2
-
-# Source files
-SRC = cordle.c
-OBJ = cordle.o
-
-# Platform detection and configuration
-# Check for DOS/Windows environment
-ifdef COMSPEC
-    # DOS/Windows detected
-    PLATFORM = DOS
-    TARGET = cordle.exe
-    CURSES_LIB = -lpdcurses
-    RM = del /Q
-    RMDIR = rmdir /S /Q
-    PATHSEP = \\
-    # DOS-specific flags
-    CFLAGS += -DMSDOS
-else
-ifdef ComSpec
-    # Alternative Windows detection
-    PLATFORM = DOS
-    TARGET = cordle.exe
-    CURSES_LIB = -lpdcurses
-    RM = del /Q
-    RMDIR = rmdir /S /Q
-    PATHSEP = \\
-    CFLAGS += -DMSDOS
-else
-    # Unix/Linux/macOS
-    PLATFORM = UNIX
-    TARGET = cordle
-    CURSES_LIB = -lncurses
-    RM = rm -f
-    RMDIR = rm -rf
-    PATHSEP = /
-endif
-endif
-
-# Additional libraries
-LIBS = $(CURSES_LIB)
-
-# Phony targets
-.PHONY: all clean help info
-
-# Default target
-all: info $(TARGET)
-
-# Display build information
-info:
-	@echo ============================================
-	@echo Building Cordle for $(PLATFORM)
-	@echo Compiler: $(CC)
-	@echo Flags: $(CFLAGS)
-	@echo Libraries: $(LIBS)
-	@echo ============================================
-	@echo
-
-# Build target
-$(TARGET): $(SRC)
-	$(CC) $(CFLAGS) -o $(TARGET) $(SRC) $(LIBS)
-	@echo
-	@echo ============================================
-	@echo Build complete: $(TARGET)
-	@echo ============================================
-	@echo
-	@echo To run: ./$(TARGET) --help
-	@echo
-
-# Object file (alternative build method)
-$(OBJ): $(SRC)
-	$(CC) $(CFLAGS) -c $(SRC)
-
-# Clean build artifacts
-clean:
-	@echo Cleaning build artifacts...
-	$(RM) $(TARGET) $(OBJ)
-	@echo Clean complete.
-
-# Help target
-help:
-	@echo Cordle Makefile - Build Instructions
-	@echo =====================================
-	@echo
-	@echo Targets:
-	@echo   make          - Build the game
-	@echo   make clean    - Remove build artifacts
-	@echo   make help     - Show this help message
-	@echo   make info     - Show build configuration
-	@echo
-	@echo Platform Detection:
-	@echo   Current: $(PLATFORM)
-	@echo
-	@echo DOS/DJGPP Requirements:
-	@echo   - DJGPP compiler installed
-	@echo   - PDCurses library installed
-	@echo   - Make utility available
-	@echo
-	@echo Unix/Linux/macOS Requirements:
-	@echo   - GCC compiler
-	@echo   - ncurses library
-	@echo   - Make utility
-	@echo
-	@echo Game Options:
-	@echo   ./$(TARGET) --easy       Easy difficulty
-	@echo   ./$(TARGET) --medium     Medium difficulty
-	@echo   ./$(TARGET) --hard       Hard difficulty
-	@echo   ./$(TARGET) --techy      Technical words
-	@echo   ./$(TARGET) --literary   Literary words
-	@echo   ./$(TARGET) --cultural   Cultural words
-	@echo   ./$(TARGET) --full       Full dictionary
-	@echo   ./$(TARGET) --help       Show game help
diff --git a/dosbox/DosBoxCordleSetupGuide.md b/dosbox/DosBoxCordleSetupGuide.md
deleted file mode 100644
index 994766b..0000000
--- a/dosbox/DosBoxCordleSetupGuide.md
+++ /dev/null
@@ -1,12 +0,0 @@
-# DOSBox Setup for Cordle Development
-
-## Quick Start
-
-### 1. Install DOSBox
-
-**Windows:**
-- Download from: https://www.dosbox.com/download.php?main=1
-- Install using the installer
-- Or use Chocolatey: `choco install dosbox`
-
-**macOS:**
diff --git a/dosbox/DosboxCordleLauncher.sh b/dosbox/DosboxCordleLauncher.sh
deleted file mode 100644
index 9324763..0000000
--- a/dosbox/DosboxCordleLauncher.sh
+++ /dev/null
@@ -1,30 +0,0 @@
-#!/bin/bash
-# DOSBox Launcher for Cordle
-# Automatically starts DOSBox with correct configuration
-
-echo "================================================"
-echo "Starting DOSBox for Cordle Development"
-echo "================================================"
-echo
-
-# Check if DOSBox is installed
-if ! command -v dosbox &> /dev/null; then
-    echo "ERROR: DOSBox not found"
-    echo
-    echo "Install DOSBox:"
-    echo "  macOS:  brew install dosbox"
-    echo "  Linux:  sudo apt-get install dosbox"
-    echo "          or sudo yum install dosbox"
-    exit 1
-fi
-
-# Check if config file exists
-if [ ! -f "dosbox-cordle.conf" ]; then
-    echo "ERROR: dosbox-cordle.conf not found"
-    echo "Please ensure the config file is in the current directory"
-    exit 1
-fi
-
-echo "Launching DOSBox..."
-echo
-dosbox -conf dosbox-cordle.conf
diff --git a/dosbox/cordle_dos_REAMDE.txt b/dosbox/cordle_dos_REAMDE.txt
deleted file mode 100644
index f2333a0..0000000
--- a/dosbox/cordle_dos_REAMDE.txt
+++ /dev/null
@@ -1,129 +0,0 @@
-================================================================================
-CORDLE - DOS BUILD INSTRUCTIONS
-================================================================================
-
-Building Cordle on DOS requires DJGPP (DJ Delorie's GCC Port) and PDCurses.
-
-================================================================================
-1. INSTALL DJGPP
-================================================================================
-
-Download and install DJGPP from: http://www.delorie.com/djgpp/
-
-Required packages:
-  - djdev205.zip    (DJGPP development kit)
-  - gcc930b.zip     (GNU C Compiler)
-  - bnu234b.zip     (GNU Binutils)
-  - mak43b.zip      (GNU Make)
-  - fil41b.zip      (GNU File utilities)
-
-Unzip all packages to C:\DJGPP
-
-Set environment variables in AUTOEXEC.BAT:
-  SET DJGPP=C:\DJGPP\DJGPP.ENV
-  SET PATH=C:\DJGPP\BIN;%PATH%
-
-================================================================================
-2. INSTALL PDCURSES
-================================================================================
-
-Download PDCurses from: https://pdcurses.org/
-
-Build PDCurses for DOS:
-  cd pdcurses\dos
-  make -f Makefile.dj
-
-Copy files:
-  copy pdcurses.a C:\DJGPP\LIB\libpdcurses.a
-  copy curses.h C:\DJGPP\INCLUDE\
-  copy panel.h C:\DJGPP\INCLUDE\
-
-================================================================================
-3. BUILD CORDLE
-================================================================================
-
-Copy the Cordle source files to your DOS system:
-  - cordle.c
-  - Makefile
-  - wordlists\ directory (with all word list files)
-
-Build the game:
-  cd \CORDLE
-  make
-
-This will create CORDLE.EXE
-
-================================================================================
-4. RUN THE GAME
-================================================================================
-
-Run with default settings:
-  cordle
-
-Run with specific difficulty:
-  cordle --easy
-  cordle --medium
-  cordle --hard
-
-Show help:
-  cordle --help
-
-================================================================================
-5. MEMORY REQUIREMENTS
-================================================================================
-
-Minimum:
-  - 2 MB RAM
-  - VGA compatible display (for colors)
-  - DOS 5.0 or higher
-
-Recommended:
-  - 4 MB RAM
-  - 80x25 text mode or larger
-
-================================================================================
-6. TROUBLESHOOTING
-================================================================================
-
-Error: "Out of memory"
-  - Increase DOS memory limit
-  - Try using CWSDPMI.EXE memory extender
-
-Error: "libpdcurses.a not found"
-  - Ensure PDCurses is properly installed
-  - Check library path: C:\DJGPP\LIB\
-
-Error: "curses.h not found"
-  - Copy curses.h to C:\DJGPP\INCLUDE\
-
-Colors not working:
-  - Ensure display supports VGA colors
-  - Try different terminal emulator
-
-================================================================================
-7. TESTING
-================================================================================
-
-Tested on:
-  - MS-DOS 6.22
-  - FreeDOS 1.3
-  - DOSBox (with DJGPP)
-  - DOSBox-X
-
-================================================================================
-8. FILE STRUCTURE
-================================================================================
-
-Required files:
-  CORDLE.EXE              Main executable
-  WORDLISTS\              Word list directory
-    PYRDLE_WORDS_EASY.TXT
-    PYRDLE_WORDS_MEDIUM.TXT
-    PYRDLE_WORDS_HARD.TXT
-    (... other word lists ...)
-
-================================================================================
-
-For modern systems, use CMake build instead (see README.md)
-
-================================================================================
diff --git a/dosbox/dosbox_config_cordle.ini b/dosbox/dosbox_config_cordle.ini
deleted file mode 100644
index bb9bcc4..0000000
--- a/dosbox/dosbox_config_cordle.ini
+++ /dev/null
@@ -1,117 +0,0 @@
-# DOSBox Configuration File for Cordle
-# =====================================
-# This configuration is optimized for running and developing Cordle
-# 
-# Usage: dosbox -conf dosbox-cordle.conf
-
-[sdl]
-# Display settings
-fullscreen=false
-fulldouble=false
-fullresolution=original
-windowresolution=original
-output=opengl
-autolock=true
-
-[dosbox]
-# DOSBox machine settings
-machine=svga_s3
-captures=capture
-memsize=16
-
-[render]
-# Rendering and aspect ratio
-frameskip=0
-aspect=true
-scaler=normal2x
-
-[cpu]
-# CPU settings - adjust if game runs too fast/slow
-core=auto
-cputype=auto
-cycles=max
-cycleup=10
-cycledown=20
-
-[mixer]
-# Sound settings (not used by Cordle, but included for completeness)
-nosound=false
-rate=44100
-blocksize=1024
-prebuffer=25
-
-[midi]
-mpu401=intelligent
-mididevice=default
-midiconfig=
-
-[sblaster]
-sbtype=sb16
-sbbase=220
-irq=7
-dma=1
-hdma=5
-sbmixer=true
-oplmode=auto
-oplemu=default
-oplrate=44100
-
-[gus]
-gus=false
-
-[speaker]
-pcspeaker=true
-pcrate=44100
-tandy=auto
-tandyrate=44100
-disney=true
-
-[joystick]
-joysticktype=auto
-
-[serial]
-serial1=dummy
-serial2=dummy
-serial3=disabled
-serial4=disabled
-
-[dos]
-# DOS settings
-xms=true
-ems=true
-umb=true
-keyboardlayout=auto
-
-[ipx]
-ipx=false
-
-[autoexec]
-# Auto-execute commands on DOSBox startup
-@echo off
-echo.
-echo ===============================================
-echo   DOSBOX CONFIGURED FOR CORDLE DEVELOPMENT
-echo ===============================================
-echo.
-
-# Mount the Cordle directory
-# CHANGE THIS PATH TO YOUR ACTUAL CORDLE DIRECTORY
-mount c: .
-c:
-
-# Set DJGPP environment if needed
-# Uncomment and adjust paths if DJGPP is installed
-# SET DJGPP=C:\DJGPP\DJGPP.ENV
-# SET PATH=C:\DJGPP\BIN;%PATH%
-
-echo Current directory mounted as C:
-echo.
-echo Available commands:
-echo   dir              - List files
-echo   cd cordle        - Change to cordle directory
-echo   make             - Build the game
-echo   cordle --help    - Show game help
-echo   cordle --easy    - Play easy mode
-echo   exit             - Exit DOSBox
-echo.
-echo ===============================================
diff --git a/dosbox/dosbox_cordle_configuration.ini b/dosbox/dosbox_cordle_configuration.ini
deleted file mode 100644
index c16866b..0000000
--- a/dosbox/dosbox_cordle_configuration.ini
+++ /dev/null
@@ -1,86 +0,0 @@
-# DOSBox-X Configuration for Cordle
-# ==================================
-# DOSBox-X provides better DOS compatibility and development features
-# Download from: https://dosbox-x.com/
-
-[sdl]
-fullscreen=false
-fulldouble=false
-fullresolution=0x0
-windowresolution=1024x768
-output=opengl
-autolock=true
-sensitivity=100
-waitonerror=true
-priority=higher,normal
-mapperfile=mapper-cordle.map
-usescancodes=true
-
-[dosbox]
-language=
-machine=svga_s3
-captures=capture
-memsize=32
-startup_verbosity=high
-
-[render]
-frameskip=0
-aspect=true
-scaler=normal3x
-glshader=default
-
-[cpu]
-core=auto
-cputype=pentium_slow
-cycles=max
-cycleup=10
-cycledown=20
-
-[mixer]
-nosound=false
-rate=44100
-blocksize=1024
-prebuffer=25
-
-[midi]
-mpu401=intelligent
-mididevice=default
-
-[dos]
-xms=true
-ems=true
-umb=true
-ver=7.1
-keyboardlayout=auto
-
-[files]
-nocachedir=false
-
-[autoexec]
-@echo off
-cls
-echo.
-echo ===============================================
-echo   CORDLE - DOS DEVELOPMENT ENVIRONMENT
-echo   (DOSBox-X Enhanced)
-echo ===============================================
-echo.
-
-# Mount current directory
-mount c: .
-c:
-
-# Enhanced prompt
-prompt $P$G
-
-# Display useful info
-echo DOSBox-X Version with enhanced DOS support
-echo Memory: 32 MB configured
-echo Display: SVGA S3 emulation
-echo.
-echo Quick Start:
-echo   make             Build Cordle
-echo   cordle.exe       Run the game
-echo   edit cordle.c    Edit source (if edit is available)
-echo.
-echo ===============================================