MESON Chess Problem Database

Problem Display
PID: 267102 (1K2B3/1p6/1r2p3/1p1k4/1Bnp2Q1/2R1p3/2N5/3r4 w - - 0 1)

Evans, TC

Sunday Referee, 1938

(First published on Sun Apr 24 1938)

1K2B3/1p6/1r2p3/1p1k4/1Bnp2Q1/2R1p3/2N5/3r4

#2

6 + 9

15239 Valois Notebooks 2022

SOLUTION

  • SOUND
  • Sets
    • 1...Ra1
      • 2.Qxd4#
    • 1...Rb1
      • 2.Qxd4#
    • 1...Rc1
      • 2.Qxd4#
    • 1...Re1
      • 2.Qxd4#
    • 1...Rf1
      • 2.Qxd4#
    • 1...Rg1
      • 2.Qxd4#
    • 1...Rh1
      • 2.Qxd4#
    • 1...Sd2
      • 2.Qxd4#
    • 1...Sd6
      • 2.Rc5#
    • 1...d3
      • 2.Qd4#
  • Keys
    • 1.Bg6!
      • threat
        • 2.Qe4#
      • 1...Ke5
        • 2.Qg5#
      • 1...Kc6
        • 2.Qxe6#
      • 1...Sd2
        • 2.Qxd4#
      • 1...Sd6
        • 2.Rc5#
      • 1...e5
        • 2.Be4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 8
  • Sets
    • R(a);N_GUARD::QAR1(D),XP(d)
    • S(c);S_CUTR(a)::QAR1(D),XP(d)
    • S(c);OGATE,SBLOCK::R1(B)
    • P(d);S_CUTR(a)::QAR1(D)
  • Actual
    • B(F);
    • Threat
      • QAB1(D)
    • Vars
      • K(f);N_GUARD,P-FLIGHT,S_CUTP(h),S_CUTS(c)::QAR2(D)
      • K(f);N_GUARD,P_SPINS(c),S_CUTR(g),S_FLIGHT::QAR2(D),XP(h)
      • S(c);S_CUTR(a)::QAR1(D),XP(d)
      • S(c);OGATE,SBLOCK::R1(B)
      • P(h);SBLOCK::B(F)
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).