MESON Chess Problem Database

Problem Display
PID: 24216 (8/4k3/1P5K/7Q/1R6/7B/1B6/8 w - - 0 1)

Klasinc, Marko

1st Prize, Delo in Tovaris, 1970

8/4k3/1P5K/7Q/1R6/7B/1B6/8

#2

6 + 1

2786 More Fun with Chess Miniatures 2000
3713 Snap 2012
5454 Near Snap 2017

SOLUTION

  • SOUND
  • Sets
    • 1...Kd8
      • 2.Bf6#
  • Tries
    • 1.Kg7?
      • 1...Kd8
        • 2.Bf6#
      • 1...Kd6!
    • 1.Bd4?
      • 1...Kd6
        • 2.Qc5#
      • 1...Kd8
        • 2.Bf6#
      • 1...Kf8!
    • 1.Be5?
      • 1...Kd8
        • 2.Bf6#
      • 1...Kf8!
    • 1.Bg7?
      • 1...Kd8
        • 2.Bf6#
      • 1...Kd6!
    • 1.Rc4?
      • 1...Kd6
        • 2.Ba3#
        • 2.Qc5#
        • 2.Qe5#
      • 1...Kd8
        • 2.Bf6#
      • 1...Kf8!
    • 1.Rd4?
      • 1...Kf6
        • 2.Re4#
        • 2.Rd7#
      • 1...Kf8!
    • 1.Re4+?
      • 1...Kd8
        • 2.Bf6#
        • 2.Re8#
        • 2.Qd1#
        • 2.Qe8#
        • 2.Qh4#
        • 2.Qd5#
        • 2.Qg5#
      • 1...Kf8
        • 2.Re8#
        • 2.Qe8#
      • 1...Kd6!
    • 1.Rf4?
      • 1...Kd8
        • 2.Bf6#
      • 1...Kd6!
    • 1.Rb5?
      • 1...Kd6
        • 2.Qc5#
      • 1...Kd8
        • 2.Bf6#
      • 1...Kf8!
    • 1.Qg6?
      • 1...Kd8
        • 2.Bf6#
      • 1...Kf8!
  • Keys
    • 1.Ba3!
      • 1...Kd6
        • 2.Rc4#
      • 1...Kf6
        • 2.Rf4#
      • 1...Kd8
        • 2.Rd4#
      • 1...Kf8
        • 2.Rg4#

Anticipated by 47459(1969)

This anticipates 268612(1996), 163117(2015)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 1
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • K(a);S_FLIGHT::B(A)
  • Tries
    • Try
      • K(F);S_FLIGHT
      • Vars
        • K(a);S_FLIGHT::B(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • B(A);
      • Vars
        • K(a);S_FLIGHT::QAB1(D)
        • K(a);S_FLIGHT::B(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • B(A);
      • Vars
        • K(a);S_FLIGHT::B(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • B(A);
      • Vars
        • K(a);S_FLIGHT::B(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • R(C);
      • Vars
        • K(a);S_FLIGHT::B(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • R(C);
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • R(C);CHECK
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • R(C);
      • Vars
        • K(a);S_FLIGHT::B(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • R(C);
      • Vars
        • K(a);S_FLIGHT::QAB1(D)
        • K(a);S_FLIGHT::B(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(D);
      • Vars
        • K(a);S_FLIGHT::B(A)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • B(A);
    • Vars
      • K(a);S_FLIGHT::B(A)+R(C)
      • K(a);S_FLIGHT::R(C)
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Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) & CSS/Javascript (jQuery, Bootstrap & DataTables).