diff --git a/du7/snake/main.c b/du7/main.c
similarity index 100%
rename from du7/snake/main.c
rename to du7/main.c
diff --git a/du7/snake/Makefile b/du7/snake/Makefile
deleted file mode 100644
index d71d436..0000000
--- a/du7/snake/Makefile
+++ /dev/null
@@ -1,14 +0,0 @@
-CFLAGS=-std=c99 -Wall -g
-
-all: game
-
-%.o: %.c
-	gcc $(CFLAGS) -c $< -o $@
-
-clean:
-	rm *.o
-	rm game
-
-game: main.o world.o snake.o
-	gcc -rdynamic -g main.o world.o snake.o -lcurses -lm -o game
-
diff --git a/du7/snake/README.md b/du7/snake/README.md
deleted file mode 100644
index 79a2d67..0000000
--- a/du7/snake/README.md
+++ /dev/null
@@ -1,16 +0,0 @@
-# Snake Master
-
-Implement Snake game.
-
-Make the game to pass the automatic tests and make the game to be nice.
-
-## Files
-
-Please do not change file names.
-
-- `snake.h`: you implementation should follow this header.
-- `snake.c`: implemement the game according to the documentation in header file  in this file to pass automatic tests.
-- `Makefile`: rules to build the game.
-- `main.c`: trivial main function that runs the game, modify this file to change the appereance of the game and the initial state.
-- `world.c`: world game loop and ASCII graphics library (do not change).
-- `world.h`: world library interface (do not change).
diff --git a/du7/snake/snake.h b/du7/snake/snake.h
deleted file mode 100644
index 4d1ff74..0000000
--- a/du7/snake/snake.h
+++ /dev/null
@@ -1,114 +0,0 @@
-#ifndef snake_h_INCLUDED
-#define snake_h_INCLUDED
-
-// Number of food items on the plane
-#define FOOD_COUNT 5
-
-/**
- * One part of the snake;
- * 
- * The snake is a linked list;
- */
- 
-struct snake {
-    // x position of the snake part
-    int x;
-    // y position of the snake part
-    int y;
-    // Pointer to the next snake part.
-    // The last part of the snake has NULL pointer to the next part.
-    struct snake* next;
-};
-
-// End game reason constants, return value of step_state
-enum endgame {
-    // Continue the game
-    END_CONTINUE = 0,
-    // Snake hit a wall
-    END_WALL,
-    // Snake hit itself
-    END_SNAKE,
-    // No food left
-    END_FOOD,
-    // Other reason to end
-    END_USER
-};
-
-/**
- * State of the game.
- * 
- * The state consists of the snake, its speed and food on the plane.
- * 
- * The snake is a linked list of snake parts.
- * 
- * Speed vector is a vector added to the last head position to create a new head.
- * 
- * Food are points on the plane. Food with negative coordinates meads food is already eaten.
- */
- 
-struct state {
-    // Snake as a linked list
-    struct snake* snake;
-    // X of the food positions
-    int foodx[FOOD_COUNT];
-    // Y of the food positions
-    int foody[FOOD_COUNT];
-    int sx;
-    int sy;
-    int width;
-    int height;
-};
-
-/**
- * Add a new snake part with given position. The new snake part becomes the new head.
- *
- * @param head of the snake.
- * @param x coordinate of the new head;
- * @param y coordinate of the new head.
- * @return new head of the snake.
- */
-struct snake* add_snake(struct snake* snake,int x,int y);
-
-/**
- * Remove the last snake part.
- * The last snake part  should always have NULL next pointer.
- *
- * @param head of the snake.
- * @return new head of the snake.
- */
-struct snake* remove_snake(struct snake* snake);
-
-/**
- * Finds out if given coordinates are part of the snake.
- * @param snake
- * @param x coordinate to search in snake
- * @param y coordinate to search in snake
- * @return True, if there is a snake part with coordinates x,y. False otherwise
- *
- */
-int is_snake(struct snake* snake,int x, int y);
-/**
- * Remove and free each snake part;
- * @param head of the snake.
- */
-void free_snake(struct snake* sn);
-/**
- * Change game state.
- *
- * The function shoud calculate new posision of the snake head
- * from the current position and speed vector.
- * Then it should modify snake parst  or food coordinates according to the rules:
- * 
- * - If the new position is on the snake, end the game, return END_SNAKE.
- * - If the new position is on the food, mark food as eaten
- *   (set its coordinates to -1) and add new snake part on the position of the food. If there is no food left, return END_FOOD. else return END_CONTINUE.
- * - If the new position is on the plane, add new snake part on the new position and remove the last part of the snake, return END_CONTINUE.
- * 
- * @param current state of the game
- * @return reason to end the game according to enum endgame.
- */
-int step_state(struct state* state);
-
-
-#endif // snake_h_INCLUDED
-
diff --git a/du7/snake/world.c b/du7/snake/world.c
deleted file mode 100644
index a45c109..0000000
--- a/du7/snake/world.c
+++ /dev/null
@@ -1,198 +0,0 @@
-#include "world.h"
-#include <assert.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <time.h>
-
-int TIMEOUT;
-
-void abort_game(const char* message){
-    endwin();
-    puts(message);
-    exit(1);
-}
-
-void check_bounds(const char* source,int x, int y){
-    char msg[200];
-    if (x < 0 || x >= COLS){
-        sprintf(msg,"%s:: width %d is out of bounds (0,%d)",source,x,COLS);
-        abort_game(msg);
-    }
-    if (y < 0 || y >= LINES){
-        sprintf(msg,"%s:: height %d is out of bounds (0,%d)",source,y,LINES);
-        abort_game(msg);
-    }
-}
-
-void clear_screen(){
-    // Clear screen
-    mvaddch(0,0,' ');
-    int screenchars = LINES*COLS;
-    for (int j = 1; j < screenchars;j++ ){
-        addch(' ');
-    }
-}
-
-void game_speed(int value){
-    if (value < 0){
-        abort_game("world_seed:: cannot be negative\n");
-    }
-    TIMEOUT =value;
-}
-
-void set_message(const char* message,int x,int y) {
-    int l = strlen(message);
-    for (int i = 0; i < l; i++){
-        check_bounds("set_message",x+i,y);
-        set_cell(message[i],x+i,y);
-    }
-}
-
-void assert_message(int event,const char* message){
-    if (event == 0){
-        abort_game(message);
-    }
-}
-
-
-void set_cell(int character,int x,int y) {
-    check_bounds("set_cell",x,y);
-    set_color_cell(character,x,y,COLOR_WHITE,COLOR_BLACK);
-}
-
-void set_color_cell(int character,int x,int y,short front_color,short back_color){
-    check_bounds("set_color_cell",x,y);
-    if (has_colors()){
-        int pair = COLOR_COUNT * front_color + back_color; 
-        attron(COLOR_PAIR(pair));
-        mvaddch(y,x,character);
-        attroff(COLOR_PAIR(pair));
-    }
-    else{
-        mvaddch(y,x,character);
-    }
-}
-
-int start_world(void* (*init_game)(),int (*world_event)(struct event* event,void* game),void (*destroy_game)(void*)){
-    srand(time(NULL));
-    int r = 1;
-    // Speed global variable
-    TIMEOUT = 100;
-    if (initscr() == NULL){
-        // TODO Which Error?
-        puts("Curses Error.");
-        return -1;
-    }
-    noecho(); // Nevypisuj vstup na obrazovku
-    cbreak(); // Zabudni starý vstup
-    nodelay(stdscr,TRUE); // Nečakaj na stlačenie
-    keypad(stdscr,TRUE); // Aktivuje šípky
-    curs_set(FALSE); // Neviditeľný kurzor
-    /* Get all the mouse events */
-    mousemask(ALL_MOUSE_EVENTS, NULL);
-    MEVENT mouse_event;
-    if (has_colors()){ // Zistenie či terminál podporuje farby
-        start_color();
-        for (int i = 0; i < COLOR_COUNT;i++){
-            for (int j = 0; j < COLOR_COUNT;j++){
-                init_pair(i * COLOR_COUNT + j, i,j);
-            }
-        }
-    }
-    else {
-        puts("No colors!\n");
-    }
-    void* game = NULL;
-    if (init_game != NULL){
-         game = init_game();
-         assert_message(game != NULL,"init_game:: should return non null pointer");
-    }
-    timeout(TIMEOUT);
-    // Initial step
-    struct event event;
-    memset(&event,0,sizeof(struct event));
-    event.height = LINES;
-    event.width = COLS;
-    event.type = EVENT_START;
-    clock_t start_time = clock();
-    clock_t last_timeout = start_time;
-    clock_t next_timeout = last_timeout + TIMEOUT;
-    event.time_ms = start_time;
-    // Start event
-    r = world_event(&event,game);
-    refresh();
-    while (!r) {
-        memset(&event,0,sizeof(struct event));
-        event.height = LINES;
-        event.width = COLS;
-        event.key = getch();
-        // No key was pressed
-        if (event.key == ERR){
-            event.type = EVENT_TIMEOUT;
-            last_timeout = clock();
-            next_timeout = last_timeout + TIMEOUT;
-        }
-        // Mouse event
-        else if (event.key == KEY_MOUSE ){
-            event.type = EVENT_MOUSE;
-            if(getmouse(&mouse_event) == OK){
-                event.mouse_x = mouse_event.x;
-                event.mouse_y = mouse_event.y;
-                if(mouse_event.bstate & BUTTON1_PRESSED){
-                    event.mouse_left = 1;
-                }
-                if(mouse_event.bstate & BUTTON2_PRESSED){
-                    event.mouse_middle = 1;
-                }
-                if(mouse_event.bstate & BUTTON3_PRESSED){
-                    event.mouse_right = 1;
-                }
-            }
-        }
-        else if (event.key == KEY_RESIZE) {
-            event.type = EVENT_RESIZE;
-        }
-        else{
-            event.type = EVENT_KEY;
-            if (event.key == 27){
-                int k = getch();
-                if (k == -1){
-                    // Esc Was pressed
-                    event.type = EVENT_ESC;
-                }
-                else {
-                    // Alt was pressed
-                    event.key = k;
-                    event.alt_key = 1;
-                }
-            }
-        }
-        // Draw new world
-        event.time_ms = clock();
-        r = world_event(&event,game);
-        refresh();
-        event.time_ms = clock();
-        // set new timeout
-        int nt = next_timeout - event.time_ms;
-        //printf("%d\n",nt);
-        if (nt > 0){
-            timeout(nt);
-        }
-        else {
-            timeout(TIMEOUT);
-            next_timeout = event.time_ms + TIMEOUT;
-        }
-    }
-    memset(&event,0,sizeof(struct event));
-    event.height = LINES;
-    event.width = COLS;
-    event.type = EVENT_END;
-    event.time_ms = clock();
-    world_event(&event,game);
-    if (destroy_game != NULL){
-        destroy_game(game);
-    }
-    endwin();
-    return r;
-};
diff --git a/du7/snake/world.h b/du7/snake/world.h
deleted file mode 100644
index e7a3fdb..0000000
--- a/du7/snake/world.h
+++ /dev/null
@@ -1,122 +0,0 @@
-#ifndef _WORLD_H_
-#define _WORLD_H_
-
-#include <curses.h>
-
-/**
- * World represented as a rectangular matrix of colorful characters.
- * 
- * Point [0,0] is displayed the upper left corner of the screen.
- * 
- */
-
-enum event_type {
-    EVENT_START,
-    EVENT_TIMEOUT,
-    EVENT_KEY,
-    EVENT_MOUSE,
-    EVENT_RESIZE,
-    EVENT_ESC,
-    EVENT_END,
-};
-
-struct event {
-    /**
-     * Last width of the screen.
-     */
-    int width;
-    /**
-     * Last height of the screen.
-     */
-    int height;
-    /**
-     * Last pressed key or Curses event.
-     *
-     * Special event  values:
-     * ERR if timeout,
-     * KEY_RESIZE if screen resize
-     * KEY_EVENT, other event,
-     * KEY_MOUSE, mouse clicked
-     *
-     * Key values:
-     *
-     * ' ' Space
-     * KEY_DOWN Arrow down
-     * KEY_UP Arrow up
-     * KEY_LEFT Arrow left
-     * KEY_RIGHT Arrow right
-     * KEY_A1 Upper left of keypad
-     * KEY_A3 Upper right of keypad
-     * KEY_B2 Center of keypad
-     * KEY_C1 Lower left of keypad
-     * KEY_C3 Lower right of keypad
-     *
-     * KEY_ENTER
-     * KEY_BACKSPACE
-     */
-    int key;
-    int alt_key;
-    enum event_type type;
-    int mouse_x;
-    int mouse_y;
-    int mouse_left;
-    int mouse_right;
-    int mouse_middle;
-    long int time_ms;
-};
-
-/**
- * Sets cell to a state.
- * @param event 
- * @param x coordinate of cell
- * @param y coordinate of cell
- * @param new state of the cell
- */
-void set_cell(int character,int x,int y);
-
-/**
- * COLOR_BLACK   0
- * COLOR_RED     1
- * COLOR_GREEN   2
- * COLOR_YELLOW  3
- * COLOR_BLUE    4
- * COLOR_MAGENTA 5
- * COLOR_CYAN    6
- * COLOR_WHITE   7
- */
-
-#define COLOR_COUNT 8
-
-void set_color_cell(int character,int x,int y,short front_color,short back_color);
-
-
-/**
- *
- * @param event
- * @param number of commandline arguments
- * @param init_world
- * @param destroy_world
- *
- * void init_world(struct event* w);
- * Initializes user state.
- * Free user state.
- * @param event
- */
-
-int start_world(void* (*init_game)(),int (*world_event)(struct event* event,void* game),void (*destroy_game)(void* game));
-/**
- * Set timeout interval in miliseconds
- */
-void game_speed(int value);
-
-/*
- * Prints a message in screen on a position x,y
- */
-
-void set_message(const char* message,int x,int y);
-/*
- * Clears screen
- */
-void clear_screen();
-
-#endif