diff --git a/bash2048.sh b/bash2048.sh
index 111d6ae..bcca3d1 100755
--- a/bash2048.sh
+++ b/bash2048.sh
@@ -14,6 +14,9 @@ declare header="Bash 2048 v1.0 (bugs: https://github.com/mydzor/bash2048/issues)
declare -i board_size=4
declare -i target=2048

+#score variable
+declare -i score=0
+
#for colorizing numbers
declare -a colors
colors[2]=33 # yellow text
@@ -30,6 +33,8 @@ colors[2048]=41 # red background (won with default target)

exec 3>/dev/null # no logging by default

+trap "end_game 0" INT
+
#simplified replacement of seq command
function _seq {
local cur=1
@@ -52,9 +57,9 @@ function _seq {

print currect status of the game, last added pieces are marked red

function print_board {
clear

• echo $header pieces=$pieces target=$target

• echo Board status: >&3

• echo

• printf "$header pieces=$pieces target=$target score=$score\n"

• printf "Board status:\n" >&3

• printf "\n"
  printf '/------'
  for l in $(_seq 1 $index_max); do
  printf '|------'
  @@ -105,7 +110,7 @@ function generate_piece {
  let value=RANDOM%10?2:4
  board[$pos]=$value
  last_added=$pos

•  echo Generated new piece with value $value at position [$pos] >&3
  

•  printf "Generated new piece with value $value at position [$pos]\n" >&3
  

  break;
  }
  done
  @@ -150,7 +155,7 @@ function push_pieces {
  board[$first]=${board[$second]}
  let board[$second]=0
  let change=1

•    echo "move piece with value ${board[$first]} from [$second] to [$first]" >&3
  

•    printf "move piece with value ${board[$first]} from [$second] to [$first]\n" >&3
  

  else
  let moves++
  fi
  @@ -166,7 +171,8 @@ function push_pieces {
  let board[$second]=0
  let pieces-=1
  let change=1

•  echo "joined piece from [$second] with [$first], new value=${board[$first]}" >&3
  

•  let score=$score+${board[$first]}
  

•  printf "joined piece from [$second] with [$first], new value=${board[$first]}\n" >&3
  

  else
  let moves++
  fi
  @@ -174,7 +180,7 @@ function push_pieces {
  }

  function apply_push {

• echo input: $1 key >&3

• printf "\n\ninput: $1 key\n" >&3
  for i in $(_seq 0 $index_max); do
  for j in $(_seq 0 $index_max); do
  flag_skip=0
  @@ -221,12 +227,13 @@ function key_react {

function end_game {
print_board

• echo GAME OVER
• printf "GAME OVER\n"
• printf "Your score: $score\n"
  let $1 && {
• echo "Congratulations you have achieved $target"
• printf "Congratulations you have achieved $target\n"
  exit 0
  }
• echo "You have lost, better luck next time."
• printf "You have lost, better luck next time.\n"
  exit 0
  }

@@ -248,21 +255,21 @@ while getopts "b:t:l:h" opt; do
case $opt in
b ) board_size="$OPTARG"
let '(board_size>=3)&(board_size<=9)' || {

•    echo "Invalid board size, please choose size between 3 and 9"
  

•    printf "Invalid board size, please choose size between 3 and 9\n"
   exit -1 
  

  };;
  t ) target="$OPTARG"

•  echo "obase=2;$target" | bc | grep -e '^1[^1]*$'
  

•  printf "obase=2;$target\n" | bc | grep -e '^1[^1]*$'
  

  let $? && {

•    echo "Invalid target, has to be power of two"
  

•    printf "Invalid target, has to be power of two\n"
   exit -1 
  

  };;
  h ) help $0
  exit 0;;
  l ) exec 3>$OPTARG;;
• ?) echo "Invalid option: -"$OPTARG", try $0 -h" >&2
• ?) printf "Invalid option: -"$OPTARG", try $0 -h\n" >&2
  exit 1;;
• : ) echo "Option -"$OPTARG" requires an argument, try $0 -h" >&2
• : ) printf "Option -"$OPTARG" requires an argument, try $0 -h\n" >&2
  exit 1;;
  esac
  done

from bash2048.

Sorry, the comment field sucks, so here's a link to the patch

https://gist.github.com/larsengels/9778574

from bash2048.

merged, also I noticed that after exiting the game with this patch, echo on terminal was disabled, not sure what caused this, I added "stty echo" to end_game as a workaround until I can find the cause.

from bash2048.