MESON Chess Problem Database

Problem Display
PID: 145114 (4K3/3P3B/3p4/1P1Pk2N/bR3p2/2N3p1/6r1/B3r2n w - - 0 1)

Davison, H

Daily News, 1924

(First published on Sat Feb 23 1924)

4K3/3P3B/3p4/1P1Pk2N/bR3p2/2N3p1/6r1/B3r2n

#2

9 + 8

14868 Pirnie Collection 2012

SOLUTION

  • SOUND
  • Sets
    • 1...Rxa1
      • 2.Re4#
    • 1...Rb1
      • 2.Re4#
    • 1...Rc1
      • 2.Re4#
    • 1...Rd1
      • 2.Re4#
    • 1...Rf1
      • 2.Re4#
    • 1...Reg1
      • 2.Re4#
    • 1...Re4
      • 2.Rxe4#
  • Tries
    • 1.d8Q?
      • threat
        • 2.Qg5#
        • 2.Qf6#
        • 2.Qe7#
      • 1...Bc2
        • 2.Qf6#
        • 2.Qe7#
      • 1...Bxb5+!
  • Keys
    • 1.Sf6!
      • threat
        • 2.Sg4#
      • 1...Kxf6+
        • 2.Se4#
      • 1...Bd1
        • 2.Se2#
      • 1...Sf2
        • 2.Sb1#
        • 2.Sd1#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 7
  • Sets
    • R(a);N_GUARD,XB(A)::R1(C)
    • R(a);N_GUARD::R1(C)
    • R(a);N_GUARD::R1(C),XR(a)
  • Tries
    • Try
      • P(G);P_SPINP(D)
      • Threat
        • DUALS(3)
      • Refutation
        • B(e);CHECK,XP(D)
  • Actual
    • S(F);
    • Threat
      • S(F)
    • Vars
      • K(g);CHECK,S_FLIGHT,XS(F)::B(A)+S(B),DCHECK
      • B(e);S_CUTR(a)::B(A)+S(B)
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).