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Subject: Test Position: deFirmian-Miles -- Mate in 11

Author: John Merlino

Date: 16:53:14 11/13/01

Here's a position from a game the 1988 US Championship in Cambridge Springs. Of
special interest, note the move number.

[D]rn3r1k/ppBnN1p1/2p1p3/6Np/q2bP1b1/3B4/PPP3PP/R2Q1R1K w - - 0 17

Chessmaster 8000 says Mate in 11 in 1:05 on a PIII-600. How does everybody else
do?

Time	Depth	Score	Positions	Moves
----	----	----	----		----
0:00	1/3	2.36	4894		17.Rxf8+ Nxf8 18.Nf7+ Kh7 19.e5+
					g6 20.Qd2 Kg7 21.Rf1 Bf5 22.Nxf5+
					exf5
0:00	1/3	2.52	7750		17.Ng6+ Kg8 18.Rxf8+ Nxf8 19.Ne7+
					Kh8 20.Nf7+ Kh7 21.e5+ g6 22.Qd2
					Kg7 23.Rf1
0:00	1/4	2.36	21760		17.Ng6+ Kg8 18.Rxf8+ Nxf8 19.Ne7+
					Kh8 20.Nf7+ Kh7 21.e5+ g6 22.Qd2
					Kg7 23.Rf1 Bf5 24.Nxf5+ exf5
0:03	2/5	4.58	121477		17.Ng6+ Kg8 18.Rxf8+ Nxf8 19.Ne7+
					Kh8 20.Qf1 Nbd7 21.Qf7 Nf6 22.e5
					Bf5 23.exf6
0:09	2/6	6.40	372629		17.Ng6+ Kg8 18.Rxf8+ Nxf8 19.Ne7+
					Kh8 20.Qf1 Bf2 21.Qxf2 Nbd7 22.e5
					g6 23.Nxg6+ Nxg6 24.Bxg6
0:31	3/7	Mate14	1358318		17.Ng6+ Kg8 18.Rxf8+ Nxf8 19.Ne7+
					Kh8 20.Nf7+ Kh7 21.e5+ g6 22.Qd2
					Be3 23.Qxe3 Kg7 24.Qh6+ Kxf7 25.Bxg6+
					Nxg6 26.Nxg6 Qa3 27.Qh7+ Ke8 28.Qg8+
					Qf8 29.Qxf8+ Kd7 30.Qd8#
0:39	3/7	Mate12	1738578		17.Rxf8+ Nxf8 18.Nf7+ Kh7 19.e5+
					g6 20.Qd2 Be3 21.Qxe3 Kg7 22.Qh6+
					Kxf7 23.Bxg6+ Nxg6 24.Nxg6 Qa3
					25.Qh7+ Ke8 26.Qg8+ Qf8 27.Qxf8+
					Kd7 28.Qd8#
1:05	3/8	Mate11	2975456		17.Rxf8+ Nxf8 18.Qf1 Bf5 19.exf5
					Nbd7 20.fxe6 g6 21.Qf7 Nf6 22.Nxg6+
					Nxg6 23.Qxg6 Rf8 24.Qh6+ Kg8 25.Bh7+
					Kh8 26.Qxf8+ Ng8 27.Qxg8#
3:56	4/9	Mate11	10555931	17.Rxf8+ Nxf8 18.Qf1 Bf5 19.exf5
					Nbd7 20.fxe6 g6 21.Qf7 Nf6 22.Nxg6+
					Nxg6 23.Qxg6 Rf8 24.Nf7+ Rxf7 25.exf7
					Bxb2 26.f8=Q+ Ng8 27.Qfxg8#

Here's the complete game:

[Event "US Championship"]
[Site "Cambridge Springs"]
[Date "1988"]
[Round ""]
[White "de Firmian, N."]
[Black "Miles, A"]
[Result "1-0"]

  1. e4             d6
  2. d4             Nf6
  3. Nc3            c6
  4. f4             Qa5
  5. Bd3            e5
  6. Nf3            Bg4
  7. dxe5           dxe5
  8. fxe5           Nfd7
  9. Bf4            Bb4
 10. O-O            O-O
 11. Nd5            Bc5+
 12. Kh1            Bd4
 13. e6             fxe6
 14. Bc7            Qa4
 15. Ne7+           Kh8
 16. Ng5            h5
 17. Rxf8+          Nxf8
 18. Qf1            Nbd7
 19. Qf7            Nf6
 20. e5             1-0

jm

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Last modified: Thu, 15 Apr 21 08:11:13 -0700

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