Fix Bh4+ move

target was calculated without considering any suffices like + so it became "4+" instead of "h4".

chess/board.go

@@ -368,6 +368,8 @@ func parseMove(move string) (string, int, int, string, error) {
 		from  string
 	)
 
+	move = strings.TrimSuffix(move, "+")
+
 	if move == "O-O" {
 		return "K", 5, 7, "g1", nil
 	}

chess/game_test.go

@@ -0,0 +1,16 @@
+package chess_test
+
+import (
+	"testing"
+
+	"github.com/ekzyis/chessbot/chess"
+)
+
+func TestGame001(t *testing.T) {
+	t.Parallel()
+
+	b := chess.NewBoard()
+
+	// this used to not parse because of the + at the end
+	assertParse(t, b, "d4 d5 Bf4 Nf6 e3 Ne4 Nc3 Nf2 Kxf2 e6 Qg4 Be7 Re1 O-O Kg3 Bh4+")
+}