MESON Chess Problem Database

Problem Display
PID: 190071 (8/6Q1/8/8/3N1R2/2n1k2p/2P4B/K7 w - - 0 1)

von Sponer, Gyorgy Janos Andor

Pesti Naplo, 1913

8/6Q1/8/8/3N1R2/2n1k2p/2P4B/K7

#2

6 + 3

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Tries
    • 1.Rf3+?
      • 1...Ke4
        • 2.Qe5#
      • 1...Kd2!
    • 1.Qg2?
      • threat
        • 2.Sf5#
        • 2.Qf2#
      • 1...Se2
        • 2.Qxe2#
      • 1...Se4
        • 2.Sf5#
        • 2.Rxe4#
      • 1...Sd1
        • 2.Sf5#
        • 2.Re4#
        • 2.Qe2#
      • 1...hxg2!
  • Keys
    • 1.Rf2!
      • 1...Kxf2
        • 2.Qg1#
      • 1...Ke4
        • 2.Qe5#
      • 1...Se2
        • 2.Rxe2#
      • 1...Sb1
        • 2.Re2#
      • 1...Sd1
        • 2.Re2#
      • 1...Sa2
        • 2.Re2#
      • 1...Sa4
        • 2.Re2#
      • 1...Se4
        • 2.Re2#
      • 1...Sb5
        • 2.Re2#
      • 1...Sd5
        • 2.Re2#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 10
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(E);CHECK
      • Vars
        • K(b);P-FLIGHT::QAR1(F)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(F);
      • Threat
        • DUALS(2)
      • Vars
        • S(a);N_GUARD::QAR1(F),XS(a)
      • Refutation
        • P(c);XQ(F)
  • Actual
    • R(E);
    • Vars
      • K(b);OGATEB,S_FLIGHT,XR(E)::QAB1(F)
      • K(b);P-FLIGHT::QAR1(F)
      • S(a);N_GUARD::R1(E),XS(a)
      • S(a);N_GUARD::R1(E)
      • S(a);N_GUARD,SBLOCK::R1(E)
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).