Exercises 2019 45. National Competition National Compatition Practical Tasks Solutions 2019 National Competition Practical Tasks 2019 National Competition Theoretical Tasks 2019 National Competition Theoretical Tasks Solutions 2019 2018 44. National Competition 2018 National Competition Tasks Practical Solutions 2018 National Competition Tasks Practical 2018 National Competition Tasks Theoretical Solutions 2018 National Competition Tasks Theoretical 2017 43. National Competition Practical Examination Solutions Practical Examination Theoretical Examination Solutions Theoretical Examination 2016 42. National Competition Practical Examination Solutions Practical Examination Theoretical Examination Solutions Theoretical Examination 2015 41. National Competition 47. International Competition Practical Examination Solutions Practical Examination Theoretical Competition Theoretical Competition Solutions Results 47th ICHO Preparatory Problems 47th ICHO 2014 40. National Competition 46. International Competition Practical Examination Solutions Practical Examination Theoretical Competition Solutions Theoretical Competition 46. ICHO Ranking 46. ICHO Preparatory Problems Practical Examination Theoretical Competition and Solutions 2013 39. National Competition Practical Examination Solutions Practical Examination Theoretical Competition Theoretical Competition Solutions 2012 38. National Competition Practical Examination Theoretical Competition 2011 37. National Competition Practical Examination Solution Practical Examination Theoretical Competition Solution Theoretical Competition