MESON Chess Problem Database

Problem Display
PID: 186300 (1K1k4/2R1p3/1PPq3n/4N2B/8/b2Q4/8/8 w - - 0 1)

Bulanov, Vladimir

Konstantinovo, Dainee

idee & form, 2015

1K1k4/2R1p3/1PPq3n/4N2B/8/b2Q4/8/8

#2

7 + 5

15601 Albrecht-Leiss-Degener Collection 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Qxd3
      • 2.Rc8#
    • 1...Qd4
      • 2.Rc8#
    • 1...Qd5
      • 2.Rc8#
    • 1...Qd7
      • 2.Rxd7#
      • 2.Rc8#
      • 2.Qxd7#
  • Tries
    • 1.Kb7?
      • threat
        • 2.Rc8#
      • 1...Qd7
        • 2.Rxd7#
        • 2.Qxd7#
      • 1...e6!
    • 1.Qa6?
      • threat
        • 2.Qc8#
      • 1...Qxc7+
        • 2.bxc7#
      • 1...Qd7
        • 2.Rxd7#
      • 1...Qe6!
    • 1.Qxd6+?
      • 1...exd6
        • 2.Rd7#
      • 1...Bxd6!
  • Keys
    • 1.Qg6!
      • threat
        • 2.Qe8#
      • 1...Qxc7+
        • 2.bxc7#
      • 1...Qxc6
        • 2.Sxc6#
      • 1...Qxg6
        • 2.Rc8#
      • 1...Sf7
        • 2.Qg8#
      • 1...Qd7
        • 2.Rxd7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 3
  • Sets
    • Q(b);N_PINR(F),N_SPINQ(b),XQ(A)::R1(F)
    • Q(b);N_PINR(F)::R1(F)
  • Tries
    • Try
      • K(G);N_SPINR(F),P-FLIGHT
      • Threat
        • R1(F)
      • Refutation
        • P(d);
    • Try
      • Q(A);N_PINQ(b)
      • Threat
        • QAR1(A)
      • Vars
        • Q(b);CHECK,OGATE,XR(F)::P(D),XQ(b)
        • Q(b);N_PINR(F)::R1(F),XQ(b)
      • Refutation
        • Q(b);N_PINR(F)
    • Try
      • Q(A);CHECK,N_SPINR(F),XQ(b)
      • Vars
        • P(d);XQ(A)::R1(F)
      • Refutation
        • B(a);P_PINR(F),XQ(A)
  • Actual
    • Q(A);N_PINQ(b)
    • Threat
      • QAR1(A)
    • Vars
      • Q(b);CHECK,OGATE,XR(F)::P(D),XQ(b)
      • Q(b);N_PINR(F),XP(E)::S(B),XQ(b)
      • Q(b);N_PINR(F),XQ(A)::R1(F)
      • S(c);N_GUARD::QAR(A)
      • Q(b);N_PINR(F)::R1(F),XQ(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).