Hi guys during the carantine , i try to play some qualitive and educative endgames.

I lost 3 theoritical draw endgames with titled players and i was very frustrated because i i knew it was theoritical draw but in time pressure i could not find the pattern and i am very disappointed. At the 3rd position i i s the idea but i misscalculated and i lost....at first 2 positions i had no time to calculate.

1) https://lichess.org/e489PjR98q1a This is the game with the IM no1 active player of Ireland Sam Collins (2453), i i found the pattern but i lost with mate in one move after a big blunder

2) https://lichess.org/Bi9YCsIp This is a game with a very good blitz player NM Jarovisky Alexey (2305 and 2446 blitz rating)

3) https://lichess.org/tB4l70i4v32p with FM (2237 according to his bio)  54)...Kd6....55)....Ke7 was draw but i i misscalculated 

4)Also i can show you and intersting win at a bishop endgame https://lichess.org/6v6zZkQkYrUp vs Uzbek Jasur Madjidov (2028)

As conclusion i must study better theoritical endgames no to throw 0.5 points