MESON Chess Problem Database

Problem Display
PID: 169255 (8/6R1/5P2/7k/5K2/7p/7P/4B3 w - - 0 1)

Labai, Zoltan

15/18, SuperProblem 190. TT, 2017

8/6R1/5P2/7k/5K2/7p/7P/4B3

#2

5 + 2

6490 yacpdb 2018
5454 Near Snap 2023

SOLUTION

  • SOUND
  • Tries
    • 1.Bc3?
      • 1...Kh4
        • 2.Rh7#
      • 1...Kh6!
    • 1.Bb4?
      • 1...Kh4
        • 2.Rh7#
      • 1...Kh6!
    • 1.Bh4?
      • 1...Kxh4
        • 2.Rh7#
      • 1...Kh6!
    • 1.Ba5?
      • 1...Kh4
        • 2.Rh7#
      • 1...Kh6!
    • 1.Rg3?
      • 1...Kh4
        • 2.Rg5#
      • 1...Kh6!
  • Keys
    • 1.Bd2!
      • 1...Kh4
        • 2.Rh7#
      • 1...Kh6
        • 2.Kg4#

Anticipated by 136457(1967), 137022(1998)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • B(A);
      • Vars
        • K(b);P-FLIGHT::R(E)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • B(A);
      • Vars
        • K(b);P-FLIGHT::R(E)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • B(A);
      • Vars
        • K(b);P-FLIGHT,XB(A)::R(E)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • B(A);
      • Vars
        • K(b);P-FLIGHT::R(E)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • R(E);
      • Vars
        • K(b);P-FLIGHT::B(A)+R(E)
      • Refutation
        • K(b);P-FLIGHT
  • Actual
    • B(A);
    • Vars
      • K(b);P-FLIGHT::R(E)
      • K(b);P-FLIGHT::B(A)+K(C)
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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).