MESON Chess Problem Database

Problem Display
PID: 231544 (8/4p3/R3K3/8/Pk6/3Q4/8/8 w - - 0 1)

Schiffert, Gyorgy

Magyar Sakkvilag, 1927

8/4p3/R3K3/8/Pk6/3Q4/8/8

#2

4 + 2

6490 yacpdb 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Kc5
      • 2.Qc3#
  • Tries
    • 1.Ke5?
      • 1...Kc5
        • 2.Qb5#
        • 2.Qc3#
        • 2.Qd4#
      • 1...e6!
    • 1.Rb6+?
      • 1...Kxa4
        • 2.Qa6#
      • 1...Ka5
        • 2.Qb5#
        • 2.Qa6#
      • 1...Kc5!
    • 1.Rc6?
      • 1...Ka5
        • 2.Qb5#
      • 1...Kxa4!
    • 1.Qb3+?
      • 1...Kc5
        • 2.Qc3#
      • 1...Kxb3!
    • 1.Qf3?
      • 1...Kc5
        • 2.Qc3#
      • 1...Kc4!
    • 1.Qg3?
      • 1...Kc5
        • 2.Qc3#
      • 1...Kc4!
    • 1.Qh3?
      • 1...Kc5
        • 2.Qc3#
      • 1...Kc4!
  • Keys
    • 1.Ra5!
      • 1...Kxa5
        • 2.Qb5#

FEATURES

  • Static
    • TYPE = WAITER
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 1
  • Sets
    • K(a);S_FLIGHT::QAR2(A)
  • Tries
    • Try
      • K(D);P-FLIGHT
      • Refutation
        • P(b);
    • Try
      • R(C);CHECK
      • Vars
        • K(a);P-FLIGHT,XP(B)::QAR2(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • R(C);
      • Vars
        • K(a);S_FLIGHT::QAR1(A)
      • Refutation
        • K(a);P-FLIGHT,XP(B)
    • Try
      • Q(A);CHECK
      • Vars
        • K(a);S_FLIGHT::QAR2(A)
      • Refutation
        • K(a);P-FLIGHT,XQ(A)
    • Try
      • Q(A);
      • Vars
        • K(a);S_FLIGHT::QAR2(A)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • Q(A);
      • Vars
        • K(a);S_FLIGHT::QAR2(A)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • Q(A);
      • Vars
        • K(a);S_FLIGHT::QAR2(A)
      • Refutation
        • K(a);P-FLIGHT
  • Actual
    • R(C);
    • Vars
      • K(a);S_FLIGHT,XR(C)::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).