MESON Chess Problem Database

Problem Display
PID: 43213 (1B3R1b/4Np2/2pnQ1q1/2N1n1p1/R1p2kP1/3b1B1P/5PP1/2K5 w - - 0 1)

Gamage, Frederick

2nd HM., BCF 039. Ty., 1941-1942

1B3R1b/4Np2/2pnQ1q1/2N1n1p1/R1p2kP1/3b1B1P/5PP1/2K5

#2

12 + 10

6139 The Leader 1943
5397 Frederick Gamage (Prcic) 2004

SOLUTION

  • SOUND
  • Sets
    • 1...Qxe6
      • 2.Sxe6#
    • 1...Sxf3
      • 2.Qe3#
      • 2.g3#
    • 1...Sd7
      • 2.Qe3#
    • 1...Se4
      • 2.Sxg6#
    • 1...Sf5
      • 2.Sxd3#
  • Tries
    • 1.Sxg6+?
      • 1...Sxg6
        • 2.Sxd3#
        • 2.Qe3#
      • 1...Bxg6!
  • Keys
    • 1.Qd5!
      • threat
        • 2.g3#
      • 1...cxd5
        • 2.Sxd5#
      • 1...Qe4
        • 2.Se6#
      • 1...Be4
        • 2.Qd2#
      • 1...Se4
        • 2.Sxg6#
      • 1...Sf5
        • 2.Sxd3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 2
  • Sets
    • Q(h);XQ(I)::S(H),XQ(h)
    • S(d);OGATE,P_SPINS(g)::QAB1(I)
    • S(g);N_SPINP(b),P_SPINP(i),P_SPINS(d),S_CUTB(a)::S(J),XQ(h)
    • S(g);P_SPINS(d),S_CUTQ(h)::S(H),XB(a)
  • Tries
    • Try
      • S(J);CHECK,XQ(h)
      • Refutation
        • B(a);XS(J)
  • Actual
    • Q(I);
    • Threat
      • P(C)
    • Vars
      • P(f);XQ(I)::S(J),XP(f)
      • Q(h);N_GUARD,N_SPINP(b),P_SPINP(i)::S(H)
      • B(a);N_SPINP(b),OGATE,P_SPINP(i)::QAB(I)
      • S(g);N_SPINP(b),P_SPINP(i),P_SPINS(d),S_CUTB(a)::S(J),XQ(h)
      • S(g);P_SPINS(d),S_CUTQ(h)::S(H),XB(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).