A1-10 A12-21
B2-5 B21
C4-7 C16-21
D6-9 D21
E1-10 E12-21
G1-5 G10 G12-21
H1 H5 H10 H12 H21
I1 I5-10 I12-21
K1-10 K12-21
L1 L10 L12 L21
M1-10 M12-21
O1-10 O12-16 O21
P1 P10 P12 P16 P21
Q1-10 Q12 Q16-21
S1 S12 S16 S21
T1 T12 T16 T21
U1-10 U12-21
W1-5 W10 W12
X1 X5 X10 X12
Y1 Y5-10 Y12-21
AA1-10 AA12-21
AB12 AB21
AC1-10 AC12-21
AD1 AD5 AD10
AE1 AE5-10 AE12-21
AG12-16
AH12 AH16
AI12-21
You can validate your puzzle solution with certitude.