MESON Chess Problem Database

Problem Display
PID: 136612 (6N1/5p1p/4p2B/4Nkn1/2KP1Pr1/4PQrB/8/8 w - - 0 1)

Garby, R

The Field, 1920

(First published on Sat Jun 26 1920)

6N1/5p1p/4p2B/4Nkn1/2KP1Pr1/4PQrB/8/8

#2

9 + 7

SOLUTION

  • SOUND
  • Sets
    • 1...Rg1
      • 2.fxg5#
    • 1...Rg2
      • 2.fxg5#
    • 1...Sxh3
      • 2.e4#
    • 1...f6
      • 2.Se7#
  • Tries
    • 1.Bxg5?
      • threat
        • 2.Sh6#
        • 2.Se7#
        • 2.e4#
      • 1...Rxh3
        • 2.Se7#
        • 2.e4#
      • 1...h6
        • 2.Sxh6#
        • 2.Se7#
        • 2.e4#
      • 1...Rxf3!
  • Keys
    • 1.Kd3!
      • 1...Rxf3
        • 2.Bxg4#
      • 1...Rxh3
        • 2.Qxg4#
      • 1...Sxf3
        • 2.e4#
      • 1...Sxh3
        • 2.Qe4#
        • 2.e4#
      • 1...Rg1
        • 2.fxg5#
      • 1...Rg2
        • 2.fxg5#
      • 1...Se4
        • 2.Qxe4#
      • 1...f6
        • 2.Se7#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 1
  • Sets
    • R(a);N_GUARD::QAR(B)+P(F),XS(d)
    • S(d);N_GUARD,N_SPINR(b),XB(C)::P(A)
    • P(f);SBLOCK::S(I)
  • Tries
    • Try
      • B(H);XS(d)
      • Threat
        • DUALS(3)
      • Refutation
        • R(a);XQ(B)
  • Actual
    • K(D);S_FLIGHT
    • Vars
      • R(a);N_GUARD,P_PINP(A),XQ(B)::B(C),XR(b)
      • R(a);N_GUARD,N_SPINR(b),XB(C)::QAB1(B),XR(b)
      • S(d);N_GUARD,XQ(B)::P(A)
      • R(a);N_GUARD::QAR(B)+P(F),XS(d)
      • S(d);N_GUARD::QAB1(B),XS(d)
      • P(f);SBLOCK::S(I)
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).