MESON Chess Problem Database

Problem Display
PID: 262534 (4k3/1N5K/3P4/1RB5/B7/8/8/8 w - - 0 1)

Labai, Zoltan

4/5 Place, SuperProblem, 2017

4k3/1N5K/3P4/1RB5/B7/8/8/8

#2

6 + 1

6490 yacpdb 2022

SOLUTION

  • SOUND
  • Tries
    • 1.Bb3?
      • 1...Kf8
        • 2.d7#
      • 1...Kd7!
    • 1.Rb1+?
      • 1...Kf8
        • 2.Rf1#
      • 1...Kf7!
    • 1.Rb2+?
      • 1...Kf8
        • 2.Rf2#
      • 1...Kf7!
    • 1.Rb3+?
      • 1...Kf8
        • 2.Rf3#
      • 1...Kf7!
    • 1.Rb4+?
      • 1...Kf8
        • 2.Rf4#
      • 1...Kf7!
  • Keys
    • 1.Sd8!
      • 1...Kd7
        • 2.Rb8#
      • 1...Kxd8
        • 2.Rb8#
      • 1...Kf8
        • 2.d7#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • B(A);
      • Vars
        • K(a);N_GUARD,P-FLIGHT::B(C)+P(D)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • R(B);CHECK
      • Vars
        • K(a);P-FLIGHT::R(B)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • R(B);CHECK
      • Vars
        • K(a);P-FLIGHT::R(B)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • R(B);CHECK
      • Vars
        • K(a);P-FLIGHT::R(B)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • R(B);CHECK
      • Vars
        • K(a);P-FLIGHT::R(B)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • S(E);
    • Vars
      • K(a);N_GUARD,S_FLIGHT::B(A)+R(B)
      • K(a);N_GUARD,P-FLIGHT,XS(E)::R(B)
      • K(a);N_GUARD,P-FLIGHT::B(C)+P(D)
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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).