3 kings vs 1 king and 2 checkers

1.b8-g3 c1-d2 2.g3-c7 d2-e1

[ 
2...d2-b4 
3.c7-d8 
b4-e1 
( 
3...b4-f8 
4.d4-c5 
f8:b4 
5.a7-b6 
a5:c7 
6.d8:c3 
) 
4.d4-c3 
e1:b4 
5.a7-b6 
a5:c7 
6.d8:c3 
] 

[ 
2...d2-c1 
3.c7-b8 
c1-h6 
( 
3...a5-b4 
4.d4-g7 
c1-h6 
5.b8-d6 
h6:c5 
6.a7:d4 
) 
4.b8-f4 
h6:c5 
5.a7:d4 
] 

3.a7-b6 e1-h4 4.d4-f6 h4:d8

[ 
4...h4:e7 
5.c7-d8 
a5:c7 
6.d8:f6 
] 

5.b6-a7 d8:b6 6.a7:d4 2-0