How answers are rated
Stockfish evaluates the position after your move and compares it with its own best move.
Evaluations are in pawns, from your side: +1.0 means you are
about a pawn ahead (or have an advantage worth that much), −1.0 means your
opponent is. A knight or bishop is worth about 3 pawns, a rook 5, a queen 9.
M3 means a forced mate in 3.
Your move is rated by how much of the advantage it gives away compared with the best move:
Only your first attempt counts towards your score. ✓ grades count as solved.