@flippy33, First of all I am not nearly as smart as CK_1886. However, since he is going to be very busy playing in 2016 Ontario Chess Championship for 12 hours a day for the next three days I will try to help you myself.
You were too greedy. You should have focused on queening the pawn instead for saving all the material. Starting move 61, I would have just moved the pawn forward like this:
http://en.lichess.org/Op16Z0tq/white
Your final blunder was stalemating king in the end. You should have been aware of possible stalemate and played to avoid it.
Here is a possible continuation:
http://en.lichess.org/SDw4BChW/white
You also missed checkmates by not playing
40. Rd1 or 41. Rd1
You missed forking the rook and king at move 51 by not playing 51. Nb6
In any event Berlin Defence is known as a very solid and drawish opening and grandmasters of drawing like Anish Giri like it a lot. So a draw is a great result! Well played!
You were too greedy. You should have focused on queening the pawn instead for saving all the material. Starting move 61, I would have just moved the pawn forward like this:
http://en.lichess.org/Op16Z0tq/white
Your final blunder was stalemating king in the end. You should have been aware of possible stalemate and played to avoid it.
Here is a possible continuation:
http://en.lichess.org/SDw4BChW/white
You also missed checkmates by not playing
40. Rd1 or 41. Rd1
You missed forking the rook and king at move 51 by not playing 51. Nb6
In any event Berlin Defence is known as a very solid and drawish opening and grandmasters of drawing like Anish Giri like it a lot. So a draw is a great result! Well played!