MESON Chess Problem Database

Problem Display
PID: 176188 (8/6Q1/8/2K2k2/8/6B1/2N5/8 w - - 0 1)

Sidler, Werner

Schach-Echo, 1968

8/6Q1/8/2K2k2/8/6B1/2N5/8

#2

4 + 1

6490 yacpdb 2018
5454 Near Snap 2019

SOLUTION

  • SOUND
  • Sets
    • 1...Ke6
      • 2.Sd4#
  • Tries
    • 1.Kc6?
      • 1...Ke6
        • 2.Sd4#
      • 1...Ke4!
    • 1.Se1?
      • 1...Ke4
        • 2.Qe5#
      • 1...Ke6!
    • 1.Bh2?
      • 1...Ke6
        • 2.Sd4#
      • 1...Ke4!
    • 1.Be5?
      • 1...Ke6
        • 2.Sd4#
      • 1...Ke4!
    • 1.Bd6?
      • 1...Ke6
        • 2.Sd4#
      • 1...Ke4!
    • 1.Bc7?
      • 1...Ke6
        • 2.Sd4#
      • 1...Ke4!
    • 1.Bb8?
      • 1...Ke6
        • 2.Sd4#
      • 1...Ke4!
    • 1.Qg8?
      • 1...Ke4
        • 2.Qd5#
      • 1...Kf6!
  • Keys
    • 1.Kc4!
      • 1...Ke4
        • 2.Qg4#
      • 1...Ke6
        • 2.Sd4#

This anticipates 86803(2000)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • K(a);S_FLIGHT::S(A)
  • Tries
    • Try
      • K(C);P-FLIGHT
      • Vars
        • K(a);S_FLIGHT::S(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • S(A);
      • Vars
        • K(a);S_FLIGHT::QAR1(D)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • B(B);
      • Vars
        • K(a);S_FLIGHT::S(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • B(B);
      • Vars
        • K(a);S_FLIGHT::S(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • B(B);
      • Vars
        • K(a);S_FLIGHT::S(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • B(B);
      • Vars
        • K(a);S_FLIGHT::S(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • B(B);
      • Vars
        • K(a);S_FLIGHT::S(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(D);
      • Vars
        • K(a);S_FLIGHT::QAB1(D)
      • Refutation
        • K(a);P-FLIGHT
  • Actual
    • K(C);P-FLIGHT
    • Vars
      • K(a);S_FLIGHT::QAR2(D)
      • K(a);S_FLIGHT::S(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).