Here is the win when Black moves first:—

2- 6 6- 9 9- 6 6-13
11-1514-1722-1818-14
6- 9 9-13 6- 2 2- 7
15-1818-2213- 9 1- 6
9- 613- 9 1- 6White wins (b)
10-1417-13(a) 5- 1

(a) Here comes White’s opportunity of sacrificing a King, thereby obtaining a position won by force.

(b) For this King must ultimately “fix” the King now on 7.

This is the victory when White moves first:—

10-14 6- 218-2213- 9
2- 616-19 6- 214-10
14-17 2- 6(b) 13-99-13
6- 919-23(c) 1- 6 5- 1
17-13 6- 222-18(d) 13-17
9- 623-18 6-13 1- 5
11-16 2- 618-14White wins (e)

(a) Not 11-15, for then Black wins two for one by 6-9, and this danger must be guarded against for several moves.

(b) This is the decisive moment when the sacrifice of the King must be prepared.

(c) 2-7, too, would lose, for White would then move up his King now on 22, and ultimately man off.