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| 1 | h1g2 | 1.h12?-f5g4, 2.h23-g4f3, 3.h3g4 (or h34)-f3g2 and now 4.a12 doesn't work because black promotes on g1 (or h1 if white is on h4) and captures the white man. | |
| f5g4 | |||
| 2 | g3f3 | 2.g2h3?-g4f3 3.h3g4 (or h34)-f3g2 with the same result as on 1.h12. | |
| --- | g4h3 | ||
| 3 | f3e4 | Now the white man is out of reach. | |
| h3g2 | 3...h32? 4.ah1+ | ||
| 4 | a12 | Generally speaking the white man must have cleared the f-g-h-files by the time the black man reaches g2. One exception is covered in the next example. |