White to play, and mate in three moves.
THE VERSATILE NUMBER
In the number 142857, if the digits which belong to it are in succession transposed from the first place to the end, the result is in each case a multiple of the original number. Thus:—
| 285714 | = | 142857 | × | 2 |
| 428571 | = | 142857 | × | 3 |
| 571428 | = | 142857 | × | 4 |
| 714285 | = | 142857 | × | 5 |
| 857142 | = | 142857 | × | 6 |
No. LVI.—CHESS CAMEO
By J. E. Campbell
BLACK
WHITE
White to play, and mate in three moves.