MESON Chess Problem Database

Problem Display
PID: 189865 (2K5/1n1RR3/2pr2p1/3k2P1/8/4P3/2Q5/8 w - - 0 1)

Klucsik, Istvan

Pesti Naplo, 1912

2K5/1n1RR3/2pr2p1/3k2P1/8/4P3/2Q5/8

#2

6 + 5

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Sets
    • 1...c5
      • 2.Qe4#
  • Tries
    • 1.Kxb7?
      • threat
        • 2.Qxc6#
      • 1...c5
        • 2.Qd3#
        • 2.Qe4#
      • 1...Rxd7+!
    • 1.Kc7?
      • threat
        • 2.Qxc6#
      • 1...Sa5
        • 2.Rxd6#
      • 1...Sc5
        • 2.Rxd6#
      • 1...Sd8
        • 2.Rxd6#
      • 1...c5
        • 2.Qd3#
        • 2.Qe4#
      • 1...Rxd7+!
    • 1.Qa4?
      • threat
        • 2.Qd4#
      • 1...c5
        • 2.Qe4#
        • 2.e4#
      • 1...Kc5!
    • 1.Qc3?
      • threat
        • 2.Re5#
        • 2.Qd4#
        • 2.e4#
      • 1...Rxd7
        • 2.Qd4#
      • 1...Sc5
        • 2.Re5#
        • 2.Qd4#
      • 1...c5!
  • Keys
    • 1.Re6!
      • 1...Kxe6
        • 2.Qe4#
      • 1...Rxd7
        • 2.Qxc6#
      • 1...c5
        • 2.Qe4#
      • 1...Sa5
        • 2.Rdxd6#
      • 1...Sc5
        • 2.Rdxd6#
      • 1...Sd8
        • 2.Rdxd6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
    • P(b);SBLOCK::QAB1(A)
  • Tries
    • Try
      • K(F);S_FLIGHT,XS(e)
      • Threat
        • QAB1(A),XP(b)
      • Refutation
        • R(c);CHECK,N_SPINR(c),XR(D)
    • Try
      • K(F);P-FLIGHT
      • Threat
        • QAB1(A),XP(b)
      • Vars
        • S(e);N_GUARD::R1(D),XR(c)
      • Refutation
        • R(c);CHECK,N_SPINR(c),XR(D)
    • Try
      • Q(A);
      • Threat
        • QAR1(A)
      • Refutation
        • K(a);N_SPINR(c),P-FLIGHT
    • Try
      • Q(A);
      • Threat
        • DUALS(3)
      • Vars
        • R(c);N_SPINR(c),XR(D)::QAR1(A)
      • Refutation
        • P(b);
  • Actual
    • R(E);
    • Vars
      • K(a);N_SPINR(c),S_FLIGHT,XR(E)::QAR2(A)
      • R(c);N_SPINR(c),XR(D)::QAB1(A),XP(b)
      • P(b);SBLOCK::QAB1(A)
      • S(e);N_GUARD::R1(D),XR(c)
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).