Three separate puzzles:
a) White to play and mate in 4 (You can ignore the line)
b) Replace each kind of figurine with a digit to make a correct addition sum
c) Replace each kind of figurine piece with a letter to make the original
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Sign up to join this communityMate in 4 moves:
1. Qa3 Rc3 2. Qxc3 e3 3. Qxe3 (any move) 4. Qg3#
Answer for the cryptarithm:
$9567 + 1085 = 10652$.
That is, using the FEN notation,
$\\Q = 9,\\ P = 5,\\ p = 6,\\ K = 7,\\ r = 1,\\ R = 0,\\ N = 8,\\ k = 2$
The third part means:
SEND + MORE = MONEY which is the original cryptarithm