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Subject: Does this position blow up your program? 2

Author: Drexel,Michael

Date: 20:23:48 12/25/02

[D] Q2Q2Q1/1R6/3BR3/3k3N/2RB2Q1/5R2/Q2Q2Bp/3N3K w - - 0 1

Problem:
White to move
If white gives check it has to be mate in one.
Find a legal position with the highest number of possible checks.

I discovered this 5 years ago. Took me about 16 hours to find it.
I think it is possible to find a proof that it is not possible to find more:

85 mates in one! :-)

I must have been crazy.

Fritz 7.0.0.8 engine crashed in Analysis mode if I increase the number of lines
to 64 (maximum). Shredder 7 not.
I have checked it under Fritz 7 GUI and Shredder7 (=Fritz8)GUI.

• And what is shortest game from initial position? Vladimir Medvedev 07:54:46 12/26/02
  • Re: And what is shortest game from initial position? Heiner Marxen 12:12:37 12/26/02
  • Re: And what is shortest game from initial position? John Lowe 08:37:15 12/26/02
    • Re: And what is shortest game from initial position? Drexel,Michael 08:46:43 12/26/02
      • Re: And what is shortest game from initial position? Uri Blass 09:02:47 12/26/02
        • Re: And what is shortest game from initial position? John Lowe 09:19:11 12/26/02
• Re: Does this position blow up your program? 2 Eran 04:50:19 12/26/02
  • Re: Does this position blow up your program? 2 Drexel,Michael 06:16:56 12/26/02
• Re: Does this position blow up your program? 2 Sune Fischer 02:17:03 12/26/02
  • Re: Does this position blow up your program? 2 Drexel,Michael 03:24:53 12/26/02
    • Re: Does this position blow up your program? 2 Uri Blass 03:32:31 12/26/02
      • Re: Does this position blow up your program? 2 Drexel,Michael 03:55:26 12/26/02
        • Re: Does this position blow up your program? 2 Drexel,Michael 04:10:01 12/26/02
    • Re: Does this position blow up your program? 2 Sune Fischer 03:31:58 12/26/02
  • Re: Does this position blow up your program? 2 Uri Blass 02:59:23 12/26/02
    • Re: Does this position blow up your program? 2 Sune Fischer 03:06:10 12/26/02
      • Re: Does this position blow up your program? 2 Uri Blass 03:30:35 12/26/02
• Re: Does this position blow up your program? 2 Uri Blass 01:29:01 12/26/02
  • Re: Does this position blow up your program? 2 Richard Bean 17:39:42 12/26/02
  • Re: Does this position blow up your program? 2 Heiner Marxen 11:50:32 12/26/02
  • Re: Does this position blow up your program? 2 Russell Reagan 01:53:12 12/26/02
    • Re: Does this position blow up your program? 2 Uri Blass 02:15:38 12/26/02
      • Re: Does this position blow up your program? 2 Dave Gomboc 03:39:38 12/26/02
        • Re: Does this position blow up your program? 2 Uri Blass 03:52:59 12/26/02

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