MESON Chess Problem Database

Problem Display
PID: 203576 (1b6/p2pn2K/P1kn3R/Qp1rPN2/1P6/P7/1pb3B1/1qR1r3 w - - 0 1)

Kovacs, Florian Janos

Magyar Sakkvilag, 1924

1b6/p2pn2K/P1kn3R/Qp1rPN2/1P6/P7/1pb3B1/1qR1r3

#2

10 + 12

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Qa1
      • 2.Rxc2#
    • 1...Re4
      • 2.Sxe7#
    • 1...Sg6
      • 2.Sd4#
  • Tries
    • 1.Kg7?
      • threat
        • 2.Sd4#
        • 2.Sxe7#
      • 1...Rxe5
        • 2.Sd4#
      • 1...Rd1
        • 2.Sxe7#
      • 1...Re4
        • 2.Sxe7#
      • 1...Sg6
        • 2.Sd4#
      • 1...Sc8
        • 2.Sd4#
      • 1...Sg8
        • 2.Sd4#
      • 1...Sxf5+!
    • 1.Be4?
      • threat
        • 2.Sd4#
        • 2.Sxe7#
      • 1...Rxe4
        • 2.Sxe7#
      • 1...Rd1
        • 2.Sxe7#
      • 1...Sg6
        • 2.Sd4#
      • 1...Sc8
        • 2.Sd4#
      • 1...Sg8
        • 2.Sd4#
      • 1...Sxf5!
  • Keys
    • 1.a4!
      • threat
        • 2.axb5#
      • 1...bxa4
        • 2.Qc5#
      • 1...Re4
        • 2.Sxe7#
      • 1...Sg6
        • 2.Sd4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 1
  • Sets
    • Q(a);N_GUARD::R(A),XB(d)
    • R(b);N_PINS(G),N_SPINR(f)::S(G),XS(k)
    • S(k);N_PINS(G),N_SPINS(h)::S(G)
  • Tries
    • Try
      • K(J);N_SPINS(G),P-FLIGHT
      • Threat
        • DUALS(2)
      • Vars
        • R(b);XP(F)::S(G)
        • R(b);::S(G),XS(k)
        • R(b);N_SPINR(f)::S(G),XS(k)
        • S(k);N_SPINS(h)::S(G)
        • S(k);::S(G)
      • Refutation
        • S(k);CHECK,XS(G)
    • Try
      • B(B);N_SPINS(G)
      • Threat
        • DUALS(2)
      • Vars
        • R(b);N_SPINR(f),XB(B)::S(G),XS(k)
        • R(b);::S(G),XS(k)
        • S(k);N_SPINS(h)::S(G)
        • S(k);::S(G)
      • Refutation
        • S(k);XS(G)
  • Actual
    • P(C);
    • Threat
      • P(C),XP(e)
    • Vars
      • P(e);OGATE,XP(C)::QAR1(E)
      • R(b);N_PINS(G),N_SPINR(f)::S(G),XS(k)
      • S(k);N_PINS(G),N_SPINS(h)::S(G)
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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).