MESON Chess Problem Database

Problem Display
PID: 201743 (B2B4/1R6/8/1P3p2/5k2/2K3N1/8/7Q w - - 0 1)

Abdullayev, Elmar

ChessStar, 2017

B2B4/1R6/8/1P3p2/5k2/2K3N1/8/7Q

#2

7 + 2

15148 Sadier Collection 2020

SOLUTION

  • SOUND
  • Tries
    • 1.Ra7?
      • 1...Ke3
        • 2.Qf3#
      • 1...Kxg3
        • 2.Qh4#
      • 1...Kg4
        • 2.Qh4#
      • 1...Ke5!
    • 1.Rc7?
      • 1...Ke3
        • 2.Qf3#
      • 1...Kxg3
        • 2.Qh4#
      • 1...Kg4
        • 2.Qh4#
      • 1...Ke5!
    • 1.Rd7?
      • 1...Ke3
        • 2.Qf3#
      • 1...Kxg3
        • 2.Qh4#
      • 1...Kg4
        • 2.Qh4#
      • 1...Ke5!
    • 1.Rf7?
      • 1...Ke3
        • 2.Qf3#
      • 1...Kxg3
        • 2.Qh4#
      • 1...Kg4
        • 2.Qh4#
      • 1...Ke5!
    • 1.Rg7?
      • 1...Ke3
        • 2.Qf3#
      • 1...Ke5!
    • 1.Rh7?
      • 1...Ke3
        • 2.Qf3#
      • 1...Kxg3
        • 2.Qf3#
        • 2.Qh4#
      • 1...Kg4
        • 2.Qf3#
        • 2.Qh4#
      • 1...Ke5!
    • 1.Rb8?
      • 1...Ke3
        • 2.Qf3#
      • 1...Kxg3
        • 2.Qh4#
      • 1...Kg4
        • 2.Qh4#
      • 1...Ke5!
  • Keys
    • 1.Rb6!
      • 1...Ke3
        • 2.Qf3#
      • 1...Kxg3
        • 2.Qh4#
      • 1...Kg4
        • 2.Qh4#
      • 1...Ke5
        • 2.Bc7#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(E);
      • Vars
        • K(a);S_FLIGHT::QAR1(A)
        • K(a);S_FLIGHT,XS(C)::QAB1(A)
        • K(a);P-FLIGHT::QAR1(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • R(E);
      • Vars
        • K(a);S_FLIGHT::QAR1(A)
        • K(a);S_FLIGHT,XS(C)::QAB1(A)
        • K(a);P-FLIGHT::QAR1(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • R(E);
      • Vars
        • K(a);S_FLIGHT::QAR1(A)
        • K(a);S_FLIGHT,XS(C)::QAB1(A)
        • K(a);P-FLIGHT::QAR1(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • R(E);P_PINP(b)
      • Vars
        • K(a);N_SPINP(b),S_FLIGHT::QAR1(A)
        • K(a);N_SPINP(b),S_FLIGHT,XS(C)::QAB1(A)
        • K(a);N_SPINP(b),P-FLIGHT::QAR1(A)
      • Refutation
        • K(a);N_SPINP(b),S_FLIGHT
    • Try
      • R(E);
      • Vars
        • K(a);S_FLIGHT::QAR1(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • R(E);
      • Vars
        • K(a);S_FLIGHT::QAR1(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • R(E);
      • Vars
        • K(a);S_FLIGHT::QAR1(A)
        • K(a);S_FLIGHT,XS(C)::QAB1(A)
        • K(a);P-FLIGHT::QAR1(A)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • R(E);
    • Vars
      • K(a);S_FLIGHT::QAR1(A)
      • K(a);S_FLIGHT,XS(C)::QAB1(A)
      • K(a);P-FLIGHT::QAR1(A)
      • K(a);S_FLIGHT::B(G)
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).