BlindChess learns you to calculate moves in advance. For blindchess first select the blindchess level in the settingsscreen. Then choose Realchess in the main menu to solve the blindchess problems.
Depending on the level you select (between 1 and 8), you see the number of moves you should calculate in advance. The higher the level, the more difficult the exercises will be. This challenge is perfectly suited for very experienced players. Based on the position you have calculated, you should try to find the best move. Like the realchess challenge, the best move can be either a defending or winning move. Some moves are very subtle and difficult to find.

2 blindmoves

Calculate 2 moves ahead (1.Qd2 0-0 2.Bb4 Qb6), then find the best move for white.
Solution is Bxf8.

4 blindmoves

Calculate 4 moves ahead (1...Ka7 2.Kb5 Kb8 3.Kc4 Ka7 4.Kd4 Ka6 5.Kxe4), then find the best move for black.
Solution is Kxa5.

6 blindmoves

Calculate 6 moves ahead (1.Be2 f5 2.Qd2 Rf6 3.Qg5 Raf8 4.Rh6 Qa3 5.dxc6 Bxc6 6.Kf1 Qxc3), then find the best move for white.
Solution is Rh3.

8 blindmoves

Calculate 8 moves ahead (1.c3 Nf5 2.Qc2 Ne3 3.Bxe3 dxe3 4.Bf3 e4 5.Bxe4 Qh4+ 6.Kd1 Bxh3 7.Na3 0-0 8.Kc1 f5)! Then find the best move for white.
Solution is Bxc6.