MESON Chess Problem Database

Problem Display
PID: 241973 (8/8/3N4/6Q1/3k4/8/1P2p3/4K3 w - - 0 1)

Szentgyorgy, Erno

Magyar Sakkvilag, 1933

8/8/3N4/6Q1/3k4/8/1P2p3/4K3

#2

4 + 2

15148 Sadier Collection 2021
5454 Near Snap 2022

SOLUTION

  • SOUND
  • Sets
    • 1...Kd3
      • 2.Qd2#
  • Tries
    • 1.Qa5?
      • 1...Kd3
        • 2.Qd2#
        • 2.Qc3#
      • 1...Ke3!
    • 1.Qc5+?
      • 1...Kd3
        • 2.Qc3#
      • 1...Kxc5!
    • 1.Qd5+?
      • 1...Ke3
        • 2.Qe4#
      • 1...Kxd5!
    • 1.Qe5+?
      • 1...Kd3
        • 2.Qc3#
        • 2.Qe4#
      • 1...Kxe5!
    • 1.b3?
      • 1...Kd3
        • 2.Qd2#
      • 1...Kc3!
    • 1.b4?
      • 1...Kd3
        • 2.Qd2#
      • 1...Kc3!
  • Keys
    • 1.Qf5!
      • 1...Ke3
        • 2.Qe4#

Anticipated by 227466(1926), 241756(1928), 241914(1933)

This anticipates 242051(1936)

FEATURES

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