And why did IBM decline....................to make a best out of 3???  


17... exf5 18. Rxe7 Bxe7 19. c4 1–0

Black resigns because the white queen will soon invade through c4 or f5, and once Re1 is played, White will have a winning position. A sample line would be: 19...bxc4 20.Qxc4 Nb4 (20...Kb7 21.Qa6 mate!) 21.Re1 Kd8 22.Rxe7 Kxe7 23.Qxb4+.

	a	b	c	d	e	f	g	h
8									8
7									7
6									6
5									5
4									4
3									3
2									2
1									1
	a	b	c	d	e	f	g	h

Final position after 19.c4

After the game Kasparov accused the Deep Blue team of cheating (i.e. having a team of human masters to aid the computer). Although Kasparov wanted another rematch, IBM declined and ended their Deep Blue program.