MESON Chess Problem Database

Problem Display
PID: 184774 (8/4p1r1/R3BNrn/3pk3/1K2P3/8/5Q2/8 w - - 0 1)

Gamage, Frederick

2nd Prize, St. Paul's Dispatch, 1908

8/4p1r1/R3BNrn/3pk3/1K2P3/8/5Q2/8

#2

6 + 6

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...dxe4
      • 2.Sd7#
  • Tries
    • 1.Bxd5?
      • threat
        • 2.Sd7#
        • 2.Re6#
      • 1...exf6
        • 2.Re6#
      • 1...e6
        • 2.Rxe6#
      • 1...Rxf6!
    • 1.Bd7?
      • threat
        • 2.Re6#
      • 1...e6
        • 2.Rxe6#
      • 1...Rxf6!
    • 1.Bc8?
      • threat
        • 2.Re6#
      • 1...e6
        • 2.Rxe6#
      • 1...Rxf6!
    • 1.Qg3+?
      • 1...Kd4
        • 2.Qc3#
      • 1...Kxf6
        • 2.e5#
      • 1...Rxg3!
  • Keys
    • 1.Qe3!
      • threat
        • 2.Sd7#
      • 1...Kxf6
        • 2.e5#
      • 1...Rxf6
        • 2.exd5#
      • 1...exf6
        • 2.exd5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 1
  • Sets
    • P(a);SBLOCK,XP(C)::S(F)
  • Tries
    • Try
      • B(E);XP(a)
      • Threat
        • DUALS(2)
      • Vars
        • P(e);XS(F)::R1(D)
        • P(e);::R1(D),XP(e)
      • Refutation
        • R(c);XS(F)
    • Try
      • B(E);
      • Threat
        • R1(D)
      • Vars
        • P(e);::R1(D),XP(e)
      • Refutation
        • R(c);XS(F)
    • Try
      • B(E);
      • Threat
        • R1(D)
      • Vars
        • P(e);::R1(D),XP(e)
      • Refutation
        • R(c);XS(F)
    • Try
      • Q(A);CHECK
      • Vars
        • K(b);S_FLIGHT::QAB1(A)
        • K(b);OGATE,S_FLIGHT,XS(F)::P(C)
      • Refutation
        • R(c);XQ(A)
  • Actual
    • Q(A);
    • Threat
      • S(F)
    • Vars
      • K(b);OGATE,S_FLIGHT,XS(F)::P(C)
      • R(c);SBLOCK,XS(F)::QAR(A)+P(C),XP(a)
      • P(e);SBLOCK,XS(F)::QAR(A)+P(C),XP(a)
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).