MESON Chess Problem Database

Problem Display
PID: 181885 (8/8/8/8/1B3k2/2P1N3/6P1/1Q2K3 w - - 0 1)

Wolff, N

Deutsches Wochenschach, 1905

8/8/8/8/1B3k2/2P1N3/6P1/1Q2K3

#2

6 + 1

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Ke5
      • 2.Qf5#
  • Tries
    • 1.Kf2?
      • threat
        • 2.Qf5#
      • 1...Ke5
        • 2.Qf5#
      • 1...Kg5!
    • 1.Qf5+?
      • 1...Kxe3
        • 2.Bc5#
        • 2.Qf3#
      • 1...Kg3!
    • 1.Qg6?
      • 1...Ke5
        • 2.Bd6#
        • 2.Qf5#
      • 1...Kxe3!
  • Keys
    • 1.Be7!
      • 1...Kxe3
        • 2.Bg5#
      • 1...Kg3
        • 2.Qb8#
      • 1...Ke5
        • 2.Qf5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • K(a);S_FLIGHT::QAR1(A)
  • Tries
    • Try
      • K(B);S_FLIGHT
      • Threat
        • QAR1(A)
      • Vars
        • K(a);S_FLIGHT::QAR1(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(A);CHECK
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(A);
      • Refutation
        • K(a);S_FLIGHT,XS(E)
  • Actual
    • B(F);
    • Vars
      • K(a);S_FLIGHT,XS(E)::B(F)
      • K(a);S_FLIGHT::QAB(A)
      • K(a);S_FLIGHT::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).