MESON Chess Problem Database

Problem Display
PID: 231413 (3b3Q/3ppr2/3PR2P/5pP1/5P2/4pk1P/4N3/5K2 w - - 0 1)

Kempf, Gyozo

Uj Nemezdek, 1927

3b3Q/3ppr2/3PR2P/5pP1/5P2/4pk1P/4N3/5K2

#2

9 + 7

6490 yacpdb 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Ba5
      • 2.Qa8#
    • 1...Bb6
      • 2.Qa8#
    • 1...Bc7
      • 2.Qa8#
  • Tries
    • 1.Qc3?
      • threat
        • 2.Rxe3#
        • 2.Qxe3#
      • 1...dxe6
        • 2.Qc6#
      • 1...Bb6!
    • 1.Qd4?
      • threat
        • 2.Rxe3#
        • 2.Qxe3#
        • 2.Qd5#
      • 1...Bb6
        • 2.Rxe3#
        • 2.Qd5#
      • 1...dxe6!
    • 1.Qe5?
      • threat
        • 2.Qxe3#
        • 2.Qd5#
      • 1...Bb6
        • 2.Qd5#
      • 1...dxe6!
  • Keys
    • 1.Qe8!
      • 1...dxe6
        • 2.Qc6#
      • 1...exd6
        • 2.Rxe3#
      • 1...Rf6
        • 2.Qh5#
      • 1...Rg7
        • 2.Qh5#
      • 1...Rh7
        • 2.Qh5#
      • 1...Rf8
        • 2.Qh5#
      • 1...Ba5
        • 2.Qa8#
      • 1...Bb6
        • 2.Qa8#
      • 1...Bc7
        • 2.Qa8#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
    • B(g);OGATE::QAB(I)
  • Tries
    • Try
      • Q(I);P_PINP(a)
      • Threat
        • DUALS(2)
      • Vars
        • P(d);N_GUARD,XR(G)::QAB(I)
      • Refutation
        • B(g);
    • Try
      • Q(I);
      • Threat
        • DUALS(3)
      • Refutation
        • P(d);XR(G)
    • Try
      • Q(I);
      • Threat
        • DUALS(2)
      • Vars
        • B(g);::QAB(I)
      • Refutation
        • P(d);XR(G)
  • Actual
    • Q(I);
    • Vars
      • P(d);OGATE,XR(G)::QAB(I)
      • P(e);XP(F)::R1(G),XP(a)
      • R(f);OGATE::QAB(I)
      • B(g);OGATE::QAB(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).