MESON Chess Problem Database

Problem Display
PID: 44779 (1BK2b2/5BNb/1pp1n2q/1pk2n1R/7R/P2P2N1/8/7Q w - - 0 1)

Gamage, Frederick

4th HM., BCF 043. Ty., 1942-1943

1BK2b2/5BNb/1pp1n2q/1pk2n1R/7R/P2P2N1/8/7Q

#2

10 + 9

5397 Frederick Gamage (Prcic) 2004

SOLUTION

  • SOUND
  • Sets
    • 1...Qc1
      • 2.Sxe6#
    • 1...Qd2
      • 2.Sxe6#
    • 1...Qf4
      • 2.Sxe6#
    • 1...Qg5
      • 2.Sxe6#
    • 1...Qxh5
      • 2.Sxe6#
    • 1...Bg6
      • 2.Sxe6#
    • 1...Bg8
      • 2.Rxf5#
    • 1...Sd4
      • 2.Se4#
    • 1...Sf4
      • 2.Qg1#
    • 1...Sg5
      • 2.Qc1#
    • 1...Sxg7
      • 2.d4#
    • 1...Sd8
      • 2.d4#
  • Tries
    • 1.Qg1+?
      • 1...Kd5
        • 2.Qd4#
      • 1...Sd4
        • 2.Se4#
        • 2.Qxd4#
      • 1...Qe3!
    • 1.d4+?
      • 1...Sxd4
        • 2.Se4#
      • 1...Kc4!
  • Keys
    • 1.Kd7!
      • threat
        • 2.Qxc6#
      • 1...Sxg7
        • 2.d4#
      • 1...Qf4
        • 2.Sxe6#
      • 1...Sf4
        • 2.Qg1#
      • 1...Sd4
        • 2.Se4#
      • 1...Sg5
        • 2.Qc1#
      • 1...Sc7
        • 2.d4#
      • 1...Sd8
        • 2.d4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 6
  • Sets
    • Q(g);N_GUARD::S(H),XS(f)
    • Q(g);N_GUARD,N_SPINS(c)::S(H),XS(f)
    • Q(g);N_GUARD,N_SPINS(c),XR(F)::S(H),XS(f)
    • B(h);S_CUTQ(g)::S(H),XS(f)
    • B(h);N_GUARD::R(F),XS(c)
    • S(f);SBLOCK::S(D)
    • S(f);N_GUARD,S_CUTQ(g)::QAB(A)
    • S(f);N_SPINS(c),S_CUTQ(g)::QAR(A)
    • S(f);N_GUARD,XS(H)::P(C)
    • S(f);N_GUARD::P(C)
  • Tries
    • Try
      • Q(A);CHECK
      • Vars
        • K(b);P-FLIGHT::QAR1(A)
      • Refutation
        • Q(g);P_SPINQ(g)
    • Try
      • P(C);CHECK
      • Vars
        • S(f);SBLOCK,XP(C)::S(D)
      • Refutation
        • K(b);N_SPINS(c),P-FLIGHT,P_SPINS(f)
  • Actual
    • K(J);S_FLIGHT
    • Threat
      • QAR1(A),XP(e)
    • Vars
      • S(f);N_GUARD,XS(H)::P(C)
      • Q(g);N_GUARD::S(H),XS(f)
      • S(f);N_GUARD,S_CUTQ(g)::QAB(A)
      • S(f);SBLOCK::S(D)
      • S(f);N_SPINS(c),S_CUTQ(g)::QAR(A)
      • S(f);N_GUARD::P(C)
HTML5 logo

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).