MESON Chess Problem Database

Problem Display
PID: 9435 (2Q5/1p5p/1P5P/3KNPk1/6P1/7p/7P/8 w - - 0 1)

Wurm, L

Deutsches Wochenschach, 1903

2Q5/1p5p/1P5P/3KNPk1/6P1/7p/7P/8

#2

8 + 4

3360 Simple Two-move Themes 1924

SOLUTION

  • SOUND
  • Sets
    • 1...Kf4
      • 2.Qc1#
    • 1...Kh4
      • 2.Qd8#
    • 1...Kf6
      • 2.Qd8#
  • Tries
    • 1.Kd4?
      • 1...Kf4
        • 2.Qc1#
      • 1...Kh4
        • 2.Qd8#
      • 1...Kf6
        • 2.Qd8#
      • 1...Kxh6!
    • 1.Ke4?
      • 1...Kh4
        • 2.Qd8#
      • 1...Kf6
        • 2.Qd8#
      • 1...Kxh6!
    • 1.Qe6?
      • 1...Kh4
        • 2.Qf6#
        • 2.Qe7#
      • 1...Kf4!
    • 1.Qc6?
      • 1...Kf4
        • 2.Qc1#
      • 1...Kh4
        • 2.Qf6#
      • 1...bxc6+!
    • 1.Qc7?
      • 1...Kf4
        • 2.Qc1#
      • 1...Kh4
        • 2.Qd8#
        • 2.Qe7#
      • 1...Kf6
        • 2.Qd8#
        • 2.Qg7#
      • 1...Kxh6!
    • 1.Qd8+?
      • 1...Kxh6
        • 2.Qf6#
      • 1...Kf4!
    • 1.Qf8?
      • 1...Kh4
        • 2.Qe7#
        • 2.Qf6#
        • 2.Qd8#
      • 1...Kf4!
    • 1.Qg8+?
      • 1...Kh4
        • 2.Sf3#
        • 2.Qd8#
      • 1...Kf6
        • 2.Qg7#
        • 2.Qd8#
      • 1...Kxh6
        • 2.Sf7#
      • 1...Kf4!
    • 1.Qh8?
      • 1...Kh4
        • 2.Qf6#
        • 2.Qd8#
      • 1...Kxh6
        • 2.Sf7#
        • 2.Qf6#
      • 1...Kf4!
  • Keys
    • 1.f6!
      • 1...Kf4
        • 2.Qc1#
      • 1...Kh4
        • 2.Sf3#
      • 1...Kxf6
        • 2.Qd8#
      • 1...Kxh6
        • 2.Qc1#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 1
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • K(b);S_FLIGHT::QAB(H)
  • Tries
    • Try
      • K(C);P-FLIGHT
      • Vars
        • K(b);S_FLIGHT::QAB(H)
      • Refutation
        • K(b);S_FLIGHT,XP(G)
    • Try
      • K(C);S_FLIGHT
      • Vars
        • K(b);S_FLIGHT::QAB(H)
      • Refutation
        • K(b);S_FLIGHT,XP(G)
    • Try
      • Q(H);
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(H);
      • Vars
        • K(b);S_FLIGHT::QAB(H)
      • Refutation
        • P(c);CHECK,XQ(H)
    • Try
      • Q(H);
      • Vars
        • K(b);S_FLIGHT::QAB(H)
      • Refutation
        • K(b);S_FLIGHT,XP(G)
    • Try
      • Q(H);CHECK
      • Vars
        • K(b);S_FLIGHT,XP(G)::QAR2(H)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(H);
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(H);CHECK
      • Vars
        • K(b);S_FLIGHT,XP(G)::S(D)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(H);
      • Refutation
        • K(b);S_FLIGHT
  • Actual
    • P(E);
    • Vars
      • K(b);S_FLIGHT::QAB(H)
      • K(b);S_FLIGHT::S(D)
      • K(b);OGATEB,S_FLIGHT,XP(E)::QAB(H)
      • K(b);S_FLIGHT,XP(G)::QAB(H)
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).