MESON Chess Problem Database

Problem Display
PID: 221410 (7R/1p6/pr1r2Q1/P1kNp3/4p3/8/1B6/3R1B1K w - - 0 1)

Fothergill, Percival Guy Laugham (PGLF)

The Field, 1891

(First published on Sat Feb 21 1891)

7R/1p6/pr1r2Q1/P1kNp3/4p3/8/1B6/3R1B1K

#2

8 + 7

15239 Valois Notebooks 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Rbc6
      • 2.Ba3#
    • 1...Rxd5
      • 2.Qxb6#
    • 1...Rd7
      • 2.Qxb6#
    • 1...Rd8
      • 2.Qxb6#
    • 1...e3
      • 2.Qc2#
  • Tries
    • 1.Ba3+?
      • 1...Kc6
        • 2.Qxd6#
      • 1...Rb4!
    • 1.Rc8+?
      • 1...Rbc6
        • 2.Ba3#
      • 1...Rdc6!
  • Keys
    • 1.Rd8!
      • 1...Kc6
        • 2.Qxd6#
      • 1...Rxb2
        • 2.Qxd6#
      • 1...Rxd5
        • 2.Qxb6#
      • 1...Rxg6
        • 2.Rc1#
      • 1...Rxd8
        • 2.Qxb6#
      • 1...Rb3
        • 2.Qxd6#
      • 1...Rb4
        • 2.Qxd6#
      • 1...Rb5
        • 2.Qxd6#
      • 1...Rbc6
        • 2.Ba3#
      • 1...Rdc6
        • 2.Rc1#
      • 1...Re6
        • 2.Rc1#
      • 1...Rf6
        • 2.Rc1#
      • 1...Rd7
        • 2.Qxb6#
      • 1...e3
        • 2.Qc2#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 9
    • REMOVED MATES = 0
  • Sets
    • R(e);N_GUARD,SBLOCK::B(D)
    • R(f);OGATE,XS(F)::QAB1(G),XR(e)
    • R(f);OGATE::QAB1(G),XR(e)
    • P(a);OGATE::QAR(G)
  • Tries
    • Try
      • B(D);CHECK
      • Vars
        • K(b);P-FLIGHT,P_SPINR(f)::QAR1(G),XR(f)
      • Refutation
        • R(e);P_SPINR(e)
    • Try
      • R(H);CHECK
      • Vars
        • R(e);P_SPINR(e)::B(D)
      • Refutation
        • R(f);P_SPINR(f)
  • Actual
    • R(H);
    • Vars
      • K(b);P-FLIGHT,P_SPINR(f)::QAR1(G),XR(f)
      • R(e);N_GUARD,XB(D)::QAB1(G),XR(f)
      • R(f);OGATE,XS(F)::QAB1(G),XR(e)
      • R(f);XQ(G)::R(A)
      • R(f);OGATE,XR(H)::QAB1(G),XR(e)
      • R(e);N_GUARD::QAB1(G),XR(f)
      • R(e);N_GUARD,SBLOCK::B(D)
      • R(f);::R(A)
      • R(f);OGATE::QAB1(G),XR(e)
      • P(a);OGATE::QAR(G)
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).