MESON Chess Problem Database

Problem Display
PID: 18566 (nbr5/q2p4/1nPpb3/1p4pp/ppk5/1N1R4/4B3/6KR w - - 0 1)

Froberg, Johan Hilding Laurentius

Springaren, 1956

nbr5/q2p4/1nPpb3/1p4pp/ppk5/1N1R4/4B3/6KR

#2

6 + 14

SOLUTION

  • SOUND
  • Sets
    • 1...Bd5
      • 2.Re3#
      • 2.Rf3#
      • 2.Rg3#
      • 2.Rdh3#
    • 1...Sd5+
      • 2.Re3#
    • 1...d5
      • 2.Re3#
      • 2.Rf3#
      • 2.Rg3#
      • 2.Rdh3#
  • Tries
    • 1.Kf2?
      • threat
        • 2.Rc1#
      • 1...Sd5+
        • 2.Re3#
      • 1...Rf8+!
    • 1.Kg2?
      • threat
        • 2.Rc1#
      • 1...Bd5+
        • 2.Rf3#
      • 1...Sd5
        • 2.Re3#
        • 2.Rf3#
        • 2.Rg3#
        • 2.Rdh3#
      • 1...Bh3+!
  • Keys
    • 1.Kh2!
      • threat
        • 2.Rc1#
      • 1...d5+
        • 2.Rg3#
      • 1...Sd5
        • 2.Re3#
        • 2.Rf3#
        • 2.Rg3#
        • 2.Rh3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 1
  • Sets
    • S(g);CHECK,SBLOCK::B(C)+R(E)
  • Tries
    • Try
      • K(A);S_FLIGHT
      • Threat
        • R(B)
      • Vars
        • S(g);CHECK,SBLOCK::B(C)+R(E)
      • Refutation
        • R(n);CHECK
    • Try
      • K(A);P-FLIGHT
      • Threat
        • R(B)
      • Vars
        • B(i);CHECK,SBLOCK::B(C)+R(E)
      • Refutation
        • B(i);CHECK
  • Actual
    • K(A);S_FLIGHT
    • Threat
      • R(B)
    • Vars
      • P(h);CHECK,SBLOCK::B(C)+R(E)
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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).