Mate in 8 - hard for some easy for others

[JVMerlino]

The King from Chessmaster 9000 is a classic at mate finding. It announced Mate in 8 in about 0.15 seconds:

Code: Select all

Time	Depth	Score	Positions	Moves
0:00	1/3	2.83	670		1.Ne6 c5 2.Nxc5 Kc7 3.Nb5+ Kc6
					4.Kb4
0:00	1/4	2.70	2059		1.Ne6 c5 2.Nxc5 Kc7 3.Nb5+ Kc6
					4.Nd3 Kd5
0:00	1/5	2.95	4582		1.Ne6 c5 2.Nxc5 Kc7 3.Nb5+ Kc6
					4.Nd3 Kd7 5.Kb4
0:00	2/6	2.97	10721		1.Ne6 c5 2.Nxc5 Kc7 3.Nb5+ Kd8
					4.Kb4 Ke7 5.Kc4
0:00	3/7	3.12	30692		1.Ne6 c5 2.Nxc5 Kc7 3.Nb5+ Kc8
					4.c4 Kd8 5.Kb4 Ke7
0:00	4/8	7.83	73714		1.Ne6 c5 2.Kb5 c4 3.Nxc4 Kc8 4.Kc6
					Kb8 5.Nc7 Kc8 6.Nxa8 Kb8 7.Nc7
0:00	5/9	7.82	168799		1.Ne6 c5 2.Kb5 c4 3.Nxc4 Kc8 4.Kc6
					Kb8 5.Nc7 Kc8 6.Nxa8 Kd8 7.Nd6 Ke7
0:00	6/10	Mate08	411293		1.Ne6 c5 2.Kb5 c4 3.Kc6 c3 4.Nf5
					Kc8 5.Kd6 Kb8 6.Ned4 Kc8 7.Nc6
					Rb8 8.Nfe7#