MESON Chess Problem Database

Problem Display
PID: 174960 (7Q/R4N2/1nP5/2k5/P4N2/P2P4/8/5K2 w - - 0 1)

Traxler, Karel Peter

Nove parizske mody, 1901

7Q/R4N2/1nP5/2k5/P4N2/P2P4/8/5K2

#2

9 + 2

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Tries
    • 1.Qd4+?
      • 1...Kxc6
        • 2.Se5#
        • 2.Sd8#
        • 2.Qd6#
      • 1...Kxd4!
    • 1.Qe5+?
      • 1...Kxc6
        • 2.Sd8#
        • 2.Rc7#
        • 2.Qd6#
        • 2.Qc7#
        • 2.Qb5#
      • 1...Sd5!
    • 1.Qh5+?
      • 1...Kd4
        • 2.Qe5#
      • 1...Kxc6
        • 2.Qb5#
      • 1...Sd5!
    • 1.Qf8+?
      • 1...Kxc6
        • 2.Se5#
        • 2.Sd8#
        • 2.Qd6#
      • 1...Kd4!
    • 1.d4+?
      • 1...Kxc6
        • 2.Qf6#
        • 2.Qh6#
      • 1...Kc4!
  • Keys
    • 1.Ra6!
      • 1...Kxc6
        • 2.Qc8#
      • 1...Sxa4
        • 2.Qe5#
      • 1...Sc4
        • 2.d4#
      • 1...Sd5
        • 2.Se6#
      • 1...Sd7
        • 2.Qc3#
      • 1...Sa8
        • 2.Qc3#
        • 2.Qe5#
      • 1...Sc8
        • 2.Qc3#
        • 2.Qe5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(I);CHECK
      • Refutation
        • K(a);S_FLIGHT,XQ(I)
    • Try
      • Q(I);CHECK
      • Refutation
        • S(b);P_SPINS(b)
    • Try
      • Q(I);CHECK
      • Vars
        • K(a);S_FLIGHT::QAB1(I)
        • K(a);OGATE,P-FLIGHT,XP(F)::QAB1(I)
      • Refutation
        • S(b);P_SPINS(b)
    • Try
      • Q(I);CHECK
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • P(C);CHECK
      • Refutation
        • K(a);P-FLIGHT
  • Actual
    • R(G);
    • Vars
      • K(a);OGATEB,P-FLIGHT,P_SPINS(b),XP(F)::QAR2(I)
      • S(b);N_GUARD,XP(D)::QAR2(I)
      • S(b);SBLOCK::P(C)
      • S(b);SBLOCK::S(E)
      • S(b);N_GUARD::QAR2(I)
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).