MESON Chess Problem Database

Problem Display
PID: 74494 (8/1p1RP3/2k2PQK/BpNN2p1/1P5p/2q2r2/2R3B1/4r3 w - - 0 1)

Gamage, Frederick

3rd Prize, Christian Science Monitor, 1942

8/1p1RP3/2k2PQK/BpNN2p1/1P5p/2q2r2/2R3B1/4r3

#2

11 + 8

5397 Frederick Gamage (Prcic) 2004

SOLUTION

  • SOUND
  • Sets
    • 1...Qxb4
      • 2.Sxb4#
    • 1...Rxe7
      • 2.Sxe7#
    • 1...Re3
      • 2.Sxe3#
    • 1...Rxf6
      • 2.Se3#
  • Tries
    • 1.f7+?
      • 1...Re6
        • 2.Qxe6#
      • 1...Rf6
        • 2.Se3#
      • 1...Qf6!
  • Keys
    • 1.Rd8!
      • threat
        • 2.Qe8#
      • 1...Qxf6
        • 2.Sd3#
      • 1...Rxe7
        • 2.Sxe7#
      • 1...Rxf6
        • 2.Se3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 2
  • Sets
    • Q(b);XP(C)::S(F),XQ(b)
    • R(a);XP(K)::S(F),XR(a)
    • R(c);::B(B)+S(F),XR(c)
    • R(c);P_PINQ(H),P_SPINR(c),XP(G)::B(B)+S(F)
  • Tries
    • Try
      • P(G);CHECK
      • Vars
        • R(a);N_GUARD,P_PINQ(H),P_SPINR(a)::QAR2(H),XR(a)
        • R(c);P_PINQ(H),P_SPINR(c),S_CUTQ(b)::B(B)+S(F)
      • Refutation
        • Q(b);P_PINQ(H),P_SPINQ(b)
  • Actual
    • R(J);
    • Threat
      • QAB(H)
    • Vars
      • Q(b);P_PINQ(H),P_SPINQ(b),XP(G)::R(A)+S(E)
      • R(a);XP(K)::S(F),XR(a)
      • R(c);P_PINQ(H),P_SPINR(c),XP(G)::B(B)+S(F)
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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).