Goldchess philosophy

In each position we examine 4 moves, so by calculating in each task where there is
5 moves – there is about 1000 of possible combinations,
10 moves – about 1 million of possible combinations,
15 moves – about 1 billion of possible combinations,
20 moves – about 1 trillion of possible combinations.

If there is 20 moves to make and 1 trillion of possible combinations, and in 1 trillion there is no other way of winning faster than the author it is truly amazing.
Are you able to find the only right solution out of 1 trillion? If so, than you are the best!
We invite you to play!