MESON Chess Problem Database

Problem Display
PID: 227843 (8/1K6/8/1kp5/N7/Q7/2P5/8 w - - 0 1)

Nagy, Odon

Onitiu, Valerian

Magyar Sakkvilag, 1926

8/1K6/8/1kp5/N7/Q7/2P5/8

#2

4 + 2

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Kc4
      • 2.Qxc5#
    • 1...Ka5
      • 2.Sc3#
    • 1...c4
      • 2.Sc3#
  • Tries
    • 1.c4+?
      • 1...Ka5
        • 2.Sb2#
        • 2.Sc3#
        • 2.Sxc5#
        • 2.Sb6#
      • 1...Kxc4!
  • Keys
    • 1.Kc7!
      • 1...Kc4
        • 2.Qxc5#
      • 1...Ka5
        • 2.Sc3#
      • 1...Ka6
        • 2.Sc3#
      • 1...c4
        • 2.Sc3#

FEATURES

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