MESON Chess Problem Database

Problem Display
PID: 76769 (7n/K1BB4/4R3/5k2/5p2/3r4/6QP/b6n w - - 0 1)

Gamage, Frederick

Frederick Gamage (Prcic), 2004

7n/K1BB4/4R3/5k2/5p2/3r4/6QP/b6n

#2

6 + 6

SOLUTION

  • SOUND
  • Sets
    • 1...Ra3+
      • 2.Ra6#
    • 1...Rb3
      • 2.Ra6#
      • 2.Rb6#
      • 2.Rc6#
      • 2.Rg6#
      • 2.Rh6#
    • 1...Rc3
      • 2.Ra6#
      • 2.Rb6#
      • 2.Rc6#
      • 2.Rg6#
      • 2.Rh6#
    • 1...Rh3
      • 2.Ra6#
      • 2.Rb6#
      • 2.Rc6#
      • 2.Rg6#
      • 2.Rh6#
    • 1...Bd4+
      • 2.Rb6#
    • 1...Be5
      • 2.Rd6#
    • 1...Bf6
      • 2.Re5#
    • 1...Sg6
      • 2.Qxg6#
    • 1...Sf7
      • 2.Qg6#
  • Tries
    • 1.Re7+?
      • 1...Kf6
        • 2.Qg7#
      • 1...Rxd7!
  • Keys
    • 1.h4!
      • threat
        • 2.Qg5#
      • 1...Ra3+
        • 2.Ra6#
      • 1...Bd4+
        • 2.Rb6#
      • 1...Rxd7
        • 2.Qh3#
      • 1...Rg3
        • 2.Ra6#
        • 2.Rb6#
        • 2.Rc6#
        • 2.Rh6#
      • 1...Sg3
        • 2.Qh3#
      • 1...Be5
        • 2.Rd6#
      • 1...Bf6
        • 2.Re5#
      • 1...Sf7
        • 2.Qg6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 1
  • Sets
    • R(c);CHECK,N_GUARD::B(F)+R(C)
    • B(a);CHECK,S_CUTR(c)::B(F)+R(C)
    • B(a);SBLOCK::B(F)+R(C)
    • B(a);SBLOCK::B(F)+R(C),DCHECK
    • S(f);N_GUARD::QAB1(A),XS(f)
    • S(f);N_GUARD::QAB1(A)
  • Tries
    • Try
      • R(C);CHECK
      • Vars
        • K(e);P-FLIGHT::QAB1(A)
      • Refutation
        • R(c);P_PINB(E),XB(F)
  • Actual
    • P(B);
    • Threat
      • QAR1(A)
    • Vars
      • R(c);CHECK,N_GUARD::B(F)+R(C)
      • B(a);CHECK,S_CUTR(c)::B(F)+R(C)
      • R(c);N_GUARD,P_PINB(E),XB(F)::QAB(A)
      • S(b);S_CUTR(c)::QAB(A)
      • B(a);SBLOCK::B(F)+R(C)
      • B(a);SBLOCK::B(F)+R(C),DCHECK
      • S(f);N_GUARD::QAB1(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).