I do not recommend attempting this puzzle without a solver. Using mine, I came up with a few technically correct answers that didn't QUITE look right before getting one I actually wanted to punch in to submit. The final image is a good likeness, but this is not a good hanjie.
Spoilers: (This is phrased with the assumption you will use a solver, but if you wish to attempt this freehand, I wish you luck) --Mario is in his typical 3/4's to profile pose. --Using Teesea's hints, the top left corner is largely empty, but a diagonal "line" connects the 6 and the 2 on the left-hand side. --From the 2 on the right-hand side, count up 5 X's before filling in a black square. The second black square is directly above that. (The 2 from Teesea's hint is Mario's nose. The 2 here is the right-most edge of his hat.) Mario's Body --R24: C 6, 11, 13, 16, 18 --R23: C 8-9, 11-14, 16-17 --R22: C 8-11, 15-19 Honestly don't know if this gives you enough to solve logically from here, but should give you enough to start brute-forcing with 2D logic and "I dunno, I guess this looks like an ear?" type guesswork. Good luck.
Managed to do it with Teesea and Chibinecco's hints, a lot of 2D logic and a LOT of playing Mario and knowing exactly what he looks like. This was... an experience.
I had to leave for a dinner party like, immediately after I finished this one (didn't realize it would take me as long as it did... XP) so didn't have time to test my hints before posting, glad to hear it helped, but wasn't a complete give away.
**SPOILERS** Use Teesea's hints. From Chibinecco's hints, R24 is correct; however, the values for R23/22 are for two different rows. R22 C8,9,11-14,16-17 ; R21 C8-11,15-19
Strigoii, thanks so much for your support and attention. I really was making the same mistake all the times that always was misleading me. You saved me here!!!
r25/c6,c11,c14,c17,c19
c1/r13-14
c24/r15-16.
Spoilers: (This is phrased with the assumption you will use a solver, but if you wish to attempt this freehand, I wish you luck)
--Mario is in his typical 3/4's to profile pose.
--Using Teesea's hints, the top left corner is largely empty, but a diagonal "line" connects the 6 and the 2 on the left-hand side.
--From the 2 on the right-hand side, count up 5 X's before filling in a black square. The second black square is directly above that.
(The 2 from Teesea's hint is Mario's nose. The 2 here is the right-most edge of his hat.)
Mario's Body
--R24: C 6, 11, 13, 16, 18
--R23: C 8-9, 11-14, 16-17
--R22: C 8-11, 15-19
Honestly don't know if this gives you enough to solve logically from here, but should give you enough to start brute-forcing with 2D logic and "I dunno, I guess this looks like an ear?" type guesswork. Good luck.
Use Teesea's hints.
From Chibinecco's hints, R24 is correct; however, the values for R23/22 are for two different rows.
R22 C8,9,11-14,16-17 ; R21 C8-11,15-19
R2 C11,18 ; R4 C8,20 ; R6 C6,13,15,19 ; R8 C5,11-12,24
R10 C4,9,23 ; R12 C2,7,10,15,19,21 ; R14 C4-6,9,17,23
R15 C2,7,10 ; R16 C5,7,10 ; R18 C6.