Routines| B | Number of characters to check |
| C | 135 or 143: animatory state mask |
| D | Number of first character to check |
| H | Number of character trying to sit down |
| L | 1 |
| 26136 | CD2166 | CALL 26145 | Any of the first B characters sitting here? |
| 26139 | C8 | RET Z | Return if so |
| 26140 | 018F02 | LD BC,655 | B=2, C=143 |
| 26143 | 16CE | LD D,206 | 206=BOY WANDER |
| 26145 | 1E01 | LD E,1 | |
| 26147 | 1A | LD A,(DE) | A=test character's x-coordinate |
| 26148 | BE | CP (HL) | Compare with that of the character trying to sit down |
| 26149 | 2014 | JR NZ,26171 | Jump to consider the next character if they don't match |
| 26151 | 1C | INC E | |
| 26152 | 2C | INC L | |
| 26153 | 1A | LD A,(DE) | A=test character's y-coordinate |
| 26154 | 1D | DEC E | |
| 26155 | BE | CP (HL) | Is the test character at the same location as the character wanting to sit? |
| 26156 | 2B | DEC HL | |
| 26157 | 200C | JR NZ,26171 | Jump if not |
| 26159 | 1D | DEC E | |
| 26160 | 1A | LD A,(DE) | A=test character's animatory state |
| 26161 | A1 | AND C | |
| 26162 | FE04 | CP 4 | Is the test character sitting in the chair here? |
| 26164 | 2005 | JR NZ,26171 | Jump if not |
| 26166 | 1E12 | LD E,18 | Pick up the MSB of the address of a controlling routine from byte 18 of the test character's buffer |
| 26168 | 1A | LD A,(DE) | |
| 26169 | A7 | AND A | Is there a controlling routine address here? |
| 26170 | C8 | RET Z | Return if not |
| 26171 | 14 | INC D | Next character to test |
| 26172 | 10E3 | DJNZ 26145 | |
| 26174 | C9 | RET |