MESON Chess Problem Database

Problem Display
PID: 180167 (2K5/8/1p6/n1k5/3R4/8/5B2/5Q2 w - - 0 1)

Romanovskis, Vladimirs

Sachmatija, 2015

2K5/8/1p6/n1k5/3R4/8/5B2/5Q2

#2

4 + 3

SOLUTION

  • SOUND
  • Sets
    • 1...Sb3
      • 2.Qc4#
    • 1...Sc4
      • 2.Qxc4#
    • 1...Sc6
      • 2.Qc4#
    • 1...Sb7
      • 2.Qc4#
  • Tries
    • 1.Kc7?
      • 1...Sc4
        • 2.Qxc4#
      • 1...Sb3
        • 2.Qc4#
      • 1...Sc6
        • 2.Qc4#
      • 1...Sb7
        • 2.Qc4#
      • 1...b5!
    • 1.Kd7?
      • 1...Sc4
        • 2.Qxc4#
      • 1...Sb3
        • 2.Qc4#
      • 1...Sc6
        • 2.Qc4#
      • 1...Sb7
        • 2.Qc4#
      • 1...b5!
    • 1.Qa6?
      • 1...Sc4
        • 2.Qxc4#
      • 1...Sb3
        • 2.Qc4#
      • 1...Sc6
        • 2.Qc4#
      • 1...Sb7
        • 2.Qc4#
      • 1...b5
        • 2.Qd6#
      • 1...Kc6!
    • 1.Qc1+?
      • 1...Sc4
        • 2.Qxc4#
      • 1...Kb5!
  • Keys
    • 1.Qd3!
      • 1...Kc6
        • 2.Rd6#
      • 1...Sc4
        • 2.Qxc4#
      • 1...b5
        • 2.Rc4#
      • 1...Sb3
        • 2.Qc4#
      • 1...Sc6
        • 2.Qc4#
      • 1...Sb7
        • 2.Qc4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • S(a);N_GUARD::QAR1(A)
    • S(a);N_GUARD::QAR1(A),XS(a)
    • S(a);N_GUARD,SBLOCK::QAR1(A)
  • Tries
    • Try
      • K(D);P-FLIGHT
      • Vars
        • S(a);N_GUARD::QAR1(A),XS(a)
        • S(a);N_GUARD::QAR1(A)
      • Refutation
        • P(c);
    • Try
      • K(D);S_FLIGHT
      • Vars
        • S(a);N_GUARD::QAR1(A),XS(a)
        • S(a);N_GUARD::QAR1(A)
      • Refutation
        • P(c);
    • Try
      • Q(A);
      • Vars
        • S(a);N_GUARD::QAR1(A),XS(a)
        • S(a);N_GUARD::QAR1(A)
        • S(a);N_GUARD,SBLOCK::QAR1(A)
        • P(c);OGATE,SBLOCK::QAB1(A)
      • Refutation
        • K(b);P-FLIGHT,P_SPINP(c)
    • Try
      • Q(A);CHECK
      • Vars
        • S(a);N_GUARD,P_SPINS(a)::QAR1(A),XS(a)
      • Refutation
        • K(b);P-FLIGHT
  • Actual
    • Q(A);
    • Vars
      • K(b);P-FLIGHT::R1(C)
      • S(a);N_GUARD::QAR1(A),XS(a)
      • P(c);SBLOCK::B(B)+R(C),DCHECK
      • S(a);N_GUARD::QAR1(A)
      • S(a);N_GUARD,SBLOCK::QAR1(A)
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).