MESON Chess Problem Database

Problem Display
PID: 93205 (4K1k1/1b1p3p/pbpP1B1p/5B2/8/5P2/1R1p4/R7 w - - 0 1)

Hjelle, David

Arbejder-Skak, 1962

4K1k1/1b1p3p/pbpP1B1p/5B2/8/5P2/1R1p4/R7

#2

7 + 9

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Bg1
      • 2.Rxg1#
    • 1...Ba5
      • 2.Rg1#
    • 1...Bc7
      • 2.Rg1#
    • 1...Bd8
      • 2.Rg1#
    • 1...d1Q
      • 2.Rg2#
    • 1...d1S
      • 2.Rg2#
    • 1...d1B
      • 2.Rg2#
    • 1...d1R
      • 2.Rg2#
    • 1...c5
      • 2.Rg1#
  • Tries
    • 1.Bb1?
      • threat
        • 2.Ba2#
      • 1...d1Q
        • 2.Rg2#
      • 1...d1B
        • 2.Rg2#
      • 1...d1R
        • 2.Rg2#
      • 1...c5!
  • Keys
    • 1.Bd3!
      • threat
        • 2.Bc4#
      • 1...d1Q
        • 2.Rg2#
      • 1...d1R
        • 2.Rg2#
      • 1...c5
        • 2.Rg1#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 6
  • Sets
    • B(c);N_GUARD::R(A),XB(c)
    • B(c);N_GUARD::R(A)
    • P(a);OGATE::R(B)
    • P(d);S_CUTB(c)::R(A)
  • Tries
    • Try
      • B(D);
      • Threat
        • B(D)
      • Vars
        • P(a);OGATE::R(B)
      • Refutation
        • P(d);
  • Actual
    • B(D);
    • Threat
      • B(D)
    • Vars
      • P(a);OGATE::R(B)
      • P(d);S_CUTB(c)::R(A)
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Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) & CSS/Javascript (jQuery, Bootstrap & DataTables).