MESON Chess Problem Database

Problem Display
PID: 189593 (3R1N2/1Kp5/2p2b1q/4k3/b3p1Bp/8/8/2Q5 w - - 0 1)

Hody, Janos

Magyar Sakkvilag, 1911

3R1N2/1Kp5/2p2b1q/4k3/b3p1Bp/8/8/2Q5

#2

5 + 8

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Sets
    • 1...Qxc1
      • 2.Sg6#
    • 1...Qd2
      • 2.Sg6#
    • 1...Qe3
      • 2.Sg6#
    • 1...Qf4
      • 2.Sg6#
      • 2.Qb2#
      • 2.Qa1#
      • 2.Qc3#
      • 2.Qc5#
    • 1...Qg6
      • 2.Sxg6#
    • 1...Qh8
      • 2.Sg6#
  • Tries
    • 1.Sd7+?
      • 1...Kd5
        • 2.Qc5#
      • 1...Kd6
        • 2.Qc5#
      • 1...Kd4!
    • 1.Qf4+?
      • 1...Qxf4
        • 2.Sg6#
      • 1...Kxf4!
  • Keys
    • 1.Qd2!
      • threat
        • 2.Sd7#
      • 1...Qxd2
        • 2.Sg6#
      • 1...Qxf8
        • 2.Qh2#
      • 1...Qe3
        • 2.Sg6#
      • 1...e3
        • 2.Qd4#
      • 1...Qg7
        • 2.Qh2#
      • 1...Qh7
        • 2.Qh2#
      • 1...c5
        • 2.Rd5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 3
  • Sets
    • Q(g);N_GUARD,XQ(A)::S(E)
    • Q(g);N_GUARD::S(E)
    • Q(g);N_GUARD::S(E),XQ(g)
  • Tries
    • Try
      • S(E);CHECK
      • Vars
        • K(d);P-FLIGHT::QAR1(A)
        • K(d);S_FLIGHT::QAB1(A)
      • Refutation
        • K(d);S_FLIGHT
    • Try
      • Q(A);CHECK
      • Vars
        • Q(g);XQ(A)::S(E)
      • Refutation
        • K(d);S_FLIGHT,XQ(A)
  • Actual
    • Q(A);
    • Threat
      • S(E)
    • Vars
      • Q(g);N_GUARD,XQ(A)::S(E)
      • Q(g);N_GUARD,XS(E)::QAB(A)
      • Q(g);N_GUARD::S(E)
      • P(b);::QAB1(A)
      • Q(g);N_GUARD::QAB(A)
      • P(e);N_GUARD::R1(D)
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).