diff --git a/day20/ex1.bash b/day20/ex1.bash
index 342c1f2..589dfff 100755
--- a/day20/ex1.bash
+++ b/day20/ex1.bash
@@ -6,8 +6,8 @@ CMD=${0##*/}
 set -o noglob
 shopt -s extglob
 
-declare -A strings
-declare -a T R B L RT RR RB RL nums
+#declare -A strings
+declare -a strings T R B L RT RR RB RL nums
 
 declare -i count=-1
 while read -r line; do
@@ -16,9 +16,7 @@ while read -r line; do
             ((count++))
             num=${line##* }
             num=${num%%:}
-            nums[$count]="$num"
-            printf "%s\n" "$num"
-            printf "size nums=%s\n" "${#nums[@]}"
+            nums+=("$num")
             ;;
         \#|.)
             strings[$count]="${strings[$count]} $line"
@@ -26,12 +24,10 @@ while read -r line; do
     esac
 done
 ((count--))
-#printf "string 2311=[%s]\n" "${strings[2311]}"
 
 for key in "${!nums[@]}"; do
     # shellcheck disable=SC2206
     str=(${strings[$key]})
-    printf "str=%d\n" "${#str[@]}"
     top="${str[0]}"
     bottom="${str[9]}"
     T+=("$top")
@@ -56,48 +52,20 @@ for key in "${!nums[@]}"; do
     RB+=("$flipbottom")
     RL+=("$flipleft")
 
-    printf "%d: top=%s right=%s bottom=%s left=%s\n" "$key" "$top" "$right" "$bottom" "$left"
-    printf "%d: fliptop=%s flipright=%s flipbottom=%s flipleft=%s\n" "$key" "$fliptop" "$flipright" "$flipbottom" "$flipleft"
-
 done
 
 ALL=("${T[@]}" "${R[@]}" "${B[@]}" "${L[@]}" "${RT[@]}" "${RR[@]}" "${RB[@]}" "${RL[@]}")
-#ALL=("${T[@]}" "${R[@]}" "${B[@]}" "${L[@]}" "${RT[@]}" "${RL[@]}")
-printf "%d %s\n" "${#ALL[@]}" "${ALL[0]}"
-declare -i res=1
+declare -i res=1 count
 for ((i=0; i<${#nums[@]}; ++i)); do
     count=0
-    #printf "%d: " "$i"
-    #printf "%s " ${T[$i]} ${R[$i]} ${B[$i]} ${L[$i]} ${RT[$i]} ${RR[$i]} ${RB[$i]} ${RL[$i]}
-    #echo
 
-    for ((j=0; j<${#nums[@]}; ++j)); do
-        if ((j != i)); then
-            #printf "i=%d j=%d\n" "$i" "$j"
-            ALL=("${T[$j]}" "${R[$j]}" "${B[$j]}" "${L[$j]}" "${RT[$j]}" \
-                            "${RR[$j]}" "${RB[$j]}" "${RL[$j]}")
-            for s in "${ALL[@]}"; do
-                #[[ $a == "$s" ]] && ((count++))
-                for t in ${T[$i]} ${R[$i]} ${B[$i]} ${L[$i]} #\
-                                  #${RT[$i]} ${RR[$i]} ${RB[$i]} ${RL[$i]}; do
-                    do printf "match %d %s with %d %s: " "$i" "$s" "$j" "$t"
-                    if [[ $t == "$s" ]]; then
-                        printf "yes\n"
-                        ((count++))
-                    else
-                        :
-                        printf "no\n"
-                    fi
-                done
-            done
-
-        fi
+    for t in ${T[$i]} ${R[$i]} ${B[$i]} ${L[$i]}; do
+        for s in "${ALL[@]}"; do
+            [[ $t == "$s" ]] && ((count++))
+        done
     done
-    printf "COUNT(%d)=%d key=%s\n" "$i" "$count" "${nums[$i]}"
-    if ((count == 2)); then
-        printf " --> %s\n" "${nums[$i]}"
-        ((res*=${nums[$i]}))
-    fi
+
+    ((count ==6)) && ((res*=${nums[$i]}))
 done
 
 printf "%s : res=%d\n" "$CMD" "$res"