diff --git a/day13/dayThirteen.go b/day13/dayThirteen.go
index 6ed2688..e0bc63d 100644
--- a/day13/dayThirteen.go
+++ b/day13/dayThirteen.go
@@ -8,7 +8,7 @@ import (
 )
 
 func Run() int {
-	filename := "day13/example"
+	filename := "day13/input"
 	fmt.Println("hello day 13.", filename)
 	bytes, err := os.ReadFile(filename)
 	if err != nil {
@@ -34,7 +34,12 @@ func Calc(field Field) int {
 	for rowNum, row := range field.Symbols {
 		for colNum, symb := range row {
 			for _, horizontalMirrorUnderCheck := range horizontals {
+				// if horizontalMirrorUnderCheck.Smaller != 4 {
+				// 	continue
+				// }
 				mirroredRow, shouldCheck := horizontalMirrorUnderCheck.reflectCoord(rowNum)
+				// log.Println("for mirror", horizontalMirrorUnderCheck.String())
+				// log.Printf("> checking row %d and mirrored %d; should %t\n", rowNum, mirroredRow, shouldCheck)
 				if shouldCheck {
 					// log.Printf("checking horizontal mirror %+v", horizontalMirrorUnderCheck)
 					// log.Printf("in should check for row %d, col %d, mirrored row %d\n", rowNum, colNum, mirroredRow)
@@ -70,15 +75,18 @@ func Calc(field Field) int {
 		for rowNum, row := range field.Symbols {
 			symb := row[colNum]
 			for _, verticalMirrorUnderCheck := range verticals {
+				// if verticalMirrorUnderCheck.Smaller != 8 {
+				// 	continue
+				// }
 				mirroredCol, shouldCheck := verticalMirrorUnderCheck.reflectCoord(colNum)
 				if shouldCheck {
-					// log.Printf("checking vertical mirror %+v", horizontalMirrorUnderCheck)
-					// log.Printf("in should check for row %d, col %d, mirrored row %d\n", rowNum, colNum, mirroredRow)
+					// log.Printf("checking vertical mirror %+v", verticalMirrorUnderCheck)
+					// log.Printf("in should check for row %d, col %d, mirrored col %d\n", rowNum, colNum, mirroredCol)
 					mirroredSymb := field.Symbols[rowNum][mirroredCol]
 					isMirrored := symb == mirroredSymb
 					if !isMirrored {
 						// log.Printf("found not mirrored : %s != %s\n", string(symb), string(mirroredSymb))
-						verticalMirrorUnderCheck.FailedLineChecks[rowNum] += 1
+						verticalMirrorUnderCheck.FailedLineChecks[colNum] += 1
 					}
 				}
 			}
@@ -143,7 +151,7 @@ func (f *Field) initMirrors() (vertical []Mirror, horizontal []Mirror) {
 
 	for rowNum := 0; rowNum < amountHorizontal; rowNum++ {
 		maxDist := min(rowNum, height - 1 - (rowNum+1))
-		log.Println("maxDist ", maxDist, "for rowNum ", rowNum)
+		// log.Println("maxDist ", maxDist, "for rowNum ", rowNum)
 		horizontal[rowNum] = Mirror{
 			Smaller:              rowNum,
 			Bigger:               rowNum + 1,
@@ -183,7 +191,7 @@ func (m *Mirror)isFullMirror() bool {
 		for failedLine, failedSymbols := range m.FailedLineChecks {
 			reflectedLine, _ := m.reflectCoord(failedLine)
 			doublyReflected, _ := m.reflectCoord(reflectedLine)
-			log.Printf(">>>> checking failed line %d, reflected is %d; doubly %d. amount failed is %d\n", failedLine, reflectedLine, doublyReflected, failedSymbols)
+			// log.Printf(">>>> checking failed line %d, reflected is %d; doubly %d. amount failed is %d\n", failedLine, reflectedLine, doublyReflected, failedSymbols)
 			if failedSymbols == 1 && (doublyReflected == failedLine) {
 				return true
 			}
@@ -200,10 +208,11 @@ func (m *Mirror)String() string {
 func (m *Mirror) reflectCoord(coord int) (reflected int, shouldCheck bool) {
 	dist := m.Smaller - coord
 
-	_, distConfirmed := m.SuccessfulLineChecks[dist]
-	if distConfirmed {
-		return 0, false // either line already fully confirmed, or failed. no need for additional checks
-	}
+	// _, distConfirmed := m.SuccessfulLineChecks[dist]
+	// if distConfirmed {
+	// 	// log.Printf("> getting dist confirmed for coord %d ; dist %d\n", coord, dist)
+	// 	return 0, false // either line already fully confirmed, or failed. no need for additional checks
+	// }
 
 	reflected = m.Bigger + dist
 	if dist < 0 {
diff --git a/day13/example3 b/day13/example3
new file mode 100644
index 0000000..2a83e84
--- /dev/null
+++ b/day13/example3
@@ -0,0 +1,15 @@
+.#..#..
+.##.###
+..####.
+##.##.#
+#.####.
+#.#.##.
+##.##.#
+..####.
+.##.###
+.#..#..
+##.....
+#.###.#
+##.....
+##.....
+#.###.#
diff --git a/day13/example4 b/day13/example4
new file mode 100644
index 0000000..7f12257
--- /dev/null
+++ b/day13/example4
@@ -0,0 +1,17 @@
+...#...####...#..
+.....##.##.##....
+##....######....#
+..#.##.#..#.##...
+##.###.####.###.#
+..###...##...###.
+#####.##..##.####
+#######....######
+###...#.##.#...##
+....###.##.###...
+##.####.##.####.#
+..###...##...###.
+##.#.##....##.#.#
+##..#.#....#.#..#
+##.###.#..#.###.#
+###.#...##...#.##
+..####.####.####.
diff --git a/day13/notes.org b/day13/notes.org
new file mode 100644
index 0000000..08a3d80
--- /dev/null
+++ b/day13/notes.org
@@ -0,0 +1,72 @@
+#+title: Notes
+* part 2 problems
+making example 3 from first field of my input
+
+.#..#..
+.##.###
+..####.
+##.##.#
+#.####.
+#.#.##.
+##.##.#
+..####.
+.##.###
+.#..#..
+##.....
+#.###.#
+##.....
+##.....
+#.###.#
+* the mirror should be between 4 & 5
+but my output is
+horizontal:  Mirror (full false) between 4 and 5. successful lines: map[0:{} 1:{} 2:{} 3:{} 4:{} 6:{} 7:{} 8:{} 9:{} 10:{} 11:{} 12:{} 13:{} 14:{}] ; failed lines: map[5:1]. Max check dist: 4
+
+why is line 4 marked as successful?
+
+** let's turn off verticals, and only look at checks for horizontal 4
+** why do i have 'row 4, mirrored 0'?
+because of 'should check false' i guess
+** now example 3 works, but some other still don't find the mirror
+* another example
+error should be on line 2
+
+...#...####...#..
+.....##.##.##....
+##....######....#
+..#.##.#..#.##...
+##.###.####.###.#
+..###...##...###.
+#####.##..##.####
+#######....######
+###...#.##.#...##
+....###.##.###...
+##.####.##.####.#
+..###...##...###.
+##.#.##....##.#.#
+##..#.#....#.#..#
+##.###.#..#.###.#
+###.#...##...#.##
+..####.####.####.
+** deleting around (8,9)
+.....
+.....
+##..#
+..#..
+##..#
+..##.
+#####
+#####
+#####
+.....
+##..#
+..##.
+##..#
+##..#
+##..#
+#####
+..##.
+
+error should be (2, 3)
+** let's only keep vertical, with Smaller 8
+oh, there should be 'line 3, 1 error', but there also should  be 'line 2, 1 error'
+why don't we have this?